Houston offshore robotics company secures $12M, names new CEO

big moves

Houston-based Nauticus Robotics has a new CEO and fresh funding. Photo via Nauticus

In the wake of a leadership reshuffling and amid lingering financial troubles, publicly traded Nauticus Robotics, a Webster-based developer of subsea robots and software, has netted more than $12 million in a second tranche of funding.

The more than $12 million in new funding includes a $9.5 million loan package.

Nauticus says the funding will accelerate certification of the company’s flagship Aquanaut robot, which is being prepared for its inaugural mission — inspecting a deep-water production facility in the Gulf of Mexico that’s owned by a major oil and gas company.

The new funding comes several weeks after the company announced a change in leadership, including a new interim CEO, interim chief financial officer, and lead general counsel.

Former Halliburton Energy Services executive John Gibson, the interim CEO, became president of Nauticus last October and subsequently joined the board. Gibson replaced Nauticus founder Nicolaus Radford in the CEO role. Radford’s LinkedIn profile indicates he left Nauticus in January 2024, the same month that Gibson stepped into the interim post.

Radford founded what was known as Houston Mechatronics in 2014.

Victoria Hay, the new interim CFO at Nauticus, and Nicholas Bigney, the new lead general counsel, came aboard in the fourth quarter of 2023.

“We currently have the intellectual property, prototypes, and the talent to deliver robust products and services,” Gibson says in a news release. “Team Nauticus is now laser-focused on converting our intellectual property, including both patents and trade secrets, into differentiated solutions that bring significant value to both commercial and government customers.”

A couple of weeks after the leadership shift, the NASDAQ stock market notified Nauticus that the average closing price of the company’s common stock had fallen below the $1-per-share threshold for 30 consecutive trading days. That threshold must be met to maintain a NASDAQ listing.

Nauticus was given 180 days to lift its average stock price above $1. If that threshold isn’t reached during that 180-day period, the company risks being delisted by NASDAQ. The stock closed February 6 at 32 cents per share.

The stock woes and leadership overhaul came on the heels of a dismal third-quarter 2023 financial report from Nauticus. The company’s fourth-quarter 2023 financial report hasn’t been filed yet.

For the first nine months of 2023, Nauticus reported an operating loss of nearly $20.9 million, up from almost $11.3 million during the same period a year earlier. Meanwhile, revenue sank from $8.2 million during the first nine months of 2022 to $5.5 million in the same period a year later.

Nauticus went public in September 2022 through a SPAC (special purpose acquisition company) merger with New York City-based CleanTech Acquisition Corp., a “blank check” company that went public in July 2021 through a $150 million IPO. The SPAC deal was valued at $560 million when it was announced in December 2021.

Nauticus recently hired investment bank Piper Sandler & Co. to help evaluate “strategic options to maximize shareholder value.”

One of the strategic alternatives involves closing Nauticus’ previously announced merger with Houston-based 3D at Depth, which specializes in subsea laser technology. When it was unveiled last October, the all-stock deal was valued at $34 million.

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This article originally ran on EnergyCapital.

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The acquisition is valued at $34 million. Photo via Nauticus Robotics

Houston robotics company makes strategic acquisition in $34M deal

M&A Moves

A Houston company that harnesses the power of robotics hardware and programing for underwater use has made an acquisition.

Nauticus Robotics Inc. (NASDAQ: KITT) announced it has acquired 3D at Depth Inc., a Colorado-based company with a subsea light detection and range, LiDAR, technology for inspection and data services. The deal closed for approximately $34 million in stock, before certain purchase price adjustments and the assumption of debt, per the news release.

“The future of subsea services lies in autonomy, data gathering, and analytics,” Nicolaus Radford, Nauticus’ founder and CEO, says in the release. “LiDAR has long since been core to terrestrial autonomy and by adding 3D’s capabilities to the Nauticus Fleet, we enhance autonomous vehicles in the offshore market. This acquisition increases the value of Nauticus’ fleet services and positions the Company to capitalize on data acquisition and analytics for subsea operations.”

The acquisition expands Nauticus' capabilities for its autonomous underwater suite of technology for its customers. With the deal, Nauticus will assume 20 patents secured or pending by acquiring 3D, which generated $9.8 million in revenue last year and is slated to grow revenue by more than 20 percent in 2023, according to the release.

“In addition to the compelling strategic and financial benefits of this deal, the acquisition will add momentum to our commercial growth trajectory,” Radford continues. “By adding 3D’s technology, offshore inspection and data service, and experienced team, Nauticus expands our addressable market and accelerates our customer penetration in the offshore energy and renewables industries.”

Founded in 2009, 3D will operate as a division of Nauticus when the deal closes sometime before the end of the year. Nauticus will also assume approximately $4.1 million of debt in the transaction.

“The Nauticus Robotics and 3D at Depth combination creates a compelling solution for the subsea market and should help improve our products and services for all our clients,” Carl Embry, founder and CEO of 3D at Depth, says in the release. “We believe the integration of our unique subsea multi-dimensional data collection and processing with an emerging leader in subsea robotics creates a differentiated offering for customers seeking safer, cleaner, lower-cost subsea services.”

Nauticus, founded by Radford in 2014 as Houston Mechatronics, went public via a blank check company last year.

Nauticus Robotics has extended a contract with one of its biggest customers. Photo via nauticusrobotics.com

Houston robotics startup secures $2.1M contract extension with engineering tech co.

customer success

A Houston startup has just secured an extended contract with a major customer.

Webster-based Nauticus Robotics, a maker of autonomous oceangoing robots, has bulked up its current contract with Reston, Virginia-based Leidos in a $2.1 million extension.. That brings Leidos’ total financial commitment from $14.5 million to $16.6 million.

In partnership with Leidos, Nauticus is developing next-generation underwater drones for business and military customers. These unmanned underwater vehicles are being designed to carry out tasks that are dangerous or impossible for human divers to do, such as mapping the ocean floor, studying sea creatures, and monitoring water pollution.

“This very important work combines great attributes from each company to deploy a truly novel subsea capability,” says Nicolaus Radford, founder and CEO of Nauticus.

Based on Nauticus’ Aquanaut product, these robots will feature the company’s toolKITT software, which supplies artificial intelligence capabilities to undersea vehicles.

“This work is the centerpiece of Nauticus’ excellent collaboration with Leidos,” says Radford, “and I look forward to continuing our mutual progress of advancing the state of the art in undersea vehicles.”

Founded in 2014 as Houston Mechatronics, Nauticus adopted its current branding in 2021. Last year, Nauticus became a publicly traded company through a merger with a “blank check” company called CleanTech Acquisition Corp.

During the first six months of 2023, Nauticus generated revenue of nearly $4 million, down from a little over $5.2 million in the same period last year. Its operating loss for the first half of 2023 was almost $12.7 million, up from slightly more than $5.2 million during the same time in 2022.

Nauticus attributes some of the revenue drop to delays in authorization of contracts with government agencies.

The company recently lined up a $15 million debt facility to bolster its operations.

“I’ve never been more optimistic about the future of Nauticus. We employ some of the best minds in the industry, and we are positioned with the right product at the right time to disrupt a $30 billion market,” Radford said earlier this month. “Demand from potential customers is high, but constructing our fleet is capital-intensive.”

More good news for Nauticus: It recently signed contracts with energy giants Shell and Petrobras. Financial terms weren’t disclosed.

The Shell contract involves a project in the Gulf of Mexico’s Princess oil and gas field that Nauticus says could lead to millions of dollars in additional contracts over the next few years. Shell operates the offshore field, which is around 40 miles southeast of New Orleans, and owns a nearly 50 percent stake in it.

Co-owners of the Princess project are Houston-based ConocoPhillips, Spring-based ExxonMobil, and London-based BP, whose North American headquarters is in Houston. In July, the Reuters news service reported that ConocoPhillips was eyeing a sale of its stake in the Princess field.

Under the contract with Petrobras, whose U.S. arm is based in Houston, Nauticus will dispatch its Aquanaut robot to support the Brazilian energy company’s offshore activities in South America. Nauticus says this deal “opens up a potential market opportunity” in Brazil exceeding $100 million a year.

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This article originally ran on EnergyCapital.

In the latest round up of Houston innovation news you may have missed, an offshore robotics company has rebranded, two startups earned bragging rights, and more. Photo via Getty Images

Houston robotics company rebrands, startups snag​  international spotlights, and more local innovation news

short stories

Houston startups have had a busy fourth quarter so far with exciting news from all around the local innovation ecosystem.

In this roundup of short stories within Houston innovation, a pair of Houston startups receive national and international praise, a local robotics company rebrands, Houston Community College receives funding for BIPOC female founders, and more.

Houston-area robotics company rebrands

Nicolaus Radford is the founder of Nauticus Robotics Inc., neé Houston Mechatronics. Photo courtesy

Houston Mechatronics Inc. based in Webster, Texas, announced that it has rebranded its offshore robotics firm as Nauticus Robotics Inc.

"The name Nauticus Robotics makes clear our commitment to the blue economy," says Nicolaus Radford, the company's founder and CEO, in a news release. "Our mission is to grow that economy through sustainable robotics that deliver value while protecting our planet's most valuable resources. This rebrand aligns us with that goal and positions us as a leader in our space."

The company has also launched a new website, representing an expanded vision of "Green robotics for a blue economy," according to the news release.

"Our new website will really lead the charge for us on the sales side," says Todd Newell, senior vice president of business development at Nauticus Robotics, in the release. "Prospective customers can get an overview of our robotics and their capabilities. If they desire, they can download detailed specifications to see how a product might fit into their operations. And we've made it very easy for those interested in a demo or a call to quickly get in touch with our team."

Houston IT company forms new partnership

Joe Alapat is the CEO of Houston-based Liongard. Courtesy of Liongard

Liongard has formed a new partnership with email defense solution Vade to release a new tool for its users. The feature automatically surfaces critical account data, streamlining user management, and billing for M365 users, according to a news release.

"I'm very pleased that Vade for M365 is now integrated with Liongard's leading IT automation platform," says Adrien Gendre, chief technology and product officer at Vade, in the release. "MSPs who offer managed cybersecurity can now combine the threat detection and remediation capabilities of Vade for M365 with the automation and unified visibility of Liongard. Together, Liongard and Vade for M365 give MSPs the tools they need to save time, improve efficiencies, and grow their businesses."

The tool is already included in Liongard’s latest release and users can leverage licensing, billing, and security data to simplify security management, accounting, and reporting.

“We’re very excited about our new Vade Inspector and the value it brings to the MSP community,” says Matt Miller, vice president of product for Liongard. “Both Vade and Liongard are committed to helping the managed services community stay security-focused. This Inspector enables MSPs to maintain a strong security posture through automation, with the added benefit of saving time and effort across the organization.”

Houston startup snags national spotlight

Cobalt's founders wanted to avoid harsh alcoholic smells and opted for calming and fun scents. Photo courtesy of Cobalt

Southern Living magazine's December issue features the annual holiday gift guide, and making the list this year is Houston-based small business Cobalt's Crisp Peppermint Hand Sanitizer.

“We are beyond thrilled to be included in Southern Living magazine with the best company,” says Christina Milligan, co-founder of Cobalt, in a news release. “It’s so exciting to see how much Cobalt has grown in the past 12 months. The idea has surpassed the pandemic and become an everyday necessity for healthy lifestyles. What started out as blending and filling each bottle from our kitchen tables has evolved into corporate partnerships, multiple scents, and new product lines. We are so grateful for all of our customers across the country and look forward to the next phase of Cobalt.”

Milligan and Molly Voorhees launched Cobalt in November 2020 with a line of personal-sized surface cleaners, hand sanitizers, and travel kits.

Cobalt is the only Houston-based company in the 2021 guide, according to the release. The issue is on newsstands now.

Houston blockchain company wins startup of the year

Data Gumbo's team was recognized internationally for its impact. Courtesy of Data Gumbo

Data Gumbo, which has created an industrial smart contract network company, announced last month that it has been named the Oil and Gas Start Up Company of the Year at the Abu Dhabi International Petroleum Exhibition and Conference Awards Gala — the largest annual oil and gas awards event in the Middle East.

According to a news release from the company, "Data Gumbo was recognized for its potential to reshape the energy industry based on its continued innovation, strong business model and the impressive impact of its global industrial smart contract network."

“Our industrial smart contract network, GumboNet, offers the new gold standard for organizations to execute business better through guaranteed transactional certainty across commercial relationships,” says Andrew Bruce, CEO and founder of Data Gumbo. “It’s an honor to be recognized by ADIPEC for our work and commitment to expanding our network across the global energy industry, allowing companies to eliminate the lack of trust in industrial sectors, streamline contract execution and capture significant cost savings.”

The 11th annual ADIPEC Awards' judges reviewed more than 700 entries from over 50 countries across digitalization, sustainability, research, innovation and more. For more info on the ADIPEC Awards, click here.

Houston university system receives $750,000 grant to drive women-owned business success

HCC has fresh funds to support female entrepreneurs. Photo via Getty Images

Wells Fargo granted $750,000 to Houston Community College to support the new Open for Business program aimed at empowering women-owned businesses in the Houston region. The grant is part of a $420 million small business recovery effort by Wells Fargo to support nonprofit and educational organizations assisting women of color in overcoming longstanding obstacles to entrepreneurship.

“We are delighted to broaden our programs to help women succeed in owning and operating businesses,” says Maya Durnovo, HCC’s chief entrepreneurial officer, in a news release, adding that the program has a particular focus on African American, Indo-American, Hispanic, Asian and Native American women.

The Open for Business Program – led by Director Tamala Austin – is already staffed with more than 165 women registered in the program.

“We can only imagine what kinds of businesses might have taken off, what products consumers might have enjoyed and what returns might have been realized had women and people of color enjoyed equal access to capital and opportunity,” Durnovo says in the release.

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Venus Aerospace adds government, C-suite leaders following $91M raise​

new leaders

Fresh off its $91 million Series B, Houston-based Venus Aerospace has made several key additions and promotions to its leadership team.

The company says its expanded team will help it deploy its high-thrust rotating detonation rocket engine (RDRE), which completed its first U.S. flight test last summer.

"We flew the world's first high-thrust RDRE in just over four years on $80 million. We believe that makes it the fastest, most capital-efficient rocket engine program in history," Sassie Duggleby, co-founder and CEO of Venus Aerospace, said in a news release. "Adding this talent to our leadership team is how we bring that same discipline to the company itself, as we scale to meet the technical needs of defense and space customers who need range and speed legacy systems can't deliver."

The key hires include:

Lane Bodian, Vice President of Public Policy

Bodian previously served as the Principal Deputy Assistant Secretary of Defense for Legislative Affairs at the Pentagon.

Dan Rebnord, Director of Federal Government Relations

Rebnord most recently served as Senior Policy Advisor to a member of the Senate Armed Services Committee and previously worked in the Office of Legislative Affairs at the Department of Defense and as Staff Director for a national security subcommittee in the House of Representatives. Rebnord and Bodian will lead Venus' work with government stakeholders.

Tom Barron, Chief Operating Officer

Barron was promoted from his role as vice president of operations for Venus Aerospace. Before his time at Venus, he served as Special Assistant to the Secretary of Defense and consulted aerospace clients at McKinsey & Company. He also served as a U.S. Army Infantry and Special Forces officer.

Nick Cardwell, Chief Product Officer

Cardwell was promoted from his role as vice president of research and development. He previously held product and technology leadership roles at VC-backed tech companies in the San Francisco Bay Area and Austin.

Venus also named Cameron Taylor as its new vice president of operations, Sarah Boland Heine as its head of communications, Matt Stohr as its head of business development, and Sheila Menz as general counsel.

The company also announced a joint technology development agreement to advance the RDRE with defense giant Lockheed Martin last week. Through the partnership, Venus and Lockheed will focus on evaluating the RDRE's propulsion architecture in defense systems, specifically for precision fires applications where weapons are designed to accurately strike targets at long distances.

Lockheed Martin Ventures, the investment arm of the aerospace and defense contractor, is an investor in Venus Aerospace.

"Lockheed Martin is focused on rapidly delivering advanced capabilities that strengthen deterrence and provide decisive advantages for the warfighter," Tim Cahill, president, Lockheed Martin Missiles and Fire Control, said in a news release. "Our collaboration with Venus Aerospace allows us to evaluate a promising propulsion technology and determine how it can be integrated into future precision fires solutions. Efforts like this help accelerate innovation, reduce risk and shorten the path from emerging technology to operational capability."

Venus' RDRE is expected to enable vehicles to travel four to six times the speed of sound from a conventional runway and is about 15 percent more efficient than traditional alternatives, according to the company.

Venus says the reusable, affordable and scalable RDRE is designed with a "common propulsion architecture" that can work for multiple industries and mission types. The company has previously estimated that the hypersonic market is projected to surpass $12 billion by 2030.

New report ranks Houston as America's No. 2 least safe city

Ranking It

A new study contains bad news for Houston. A report from personal finance website SmartAsset ranks the Bayou City as the second-least safe city in the U.S. among cities with at least 250,000 residents.

Only Memphis ranked worse than Houston.

The 2026 study looked at 83 U.S. cities' violent crimes, property crimes, traffic deaths, and disaster risk.

Houston fared poorly in all four: 11.5 violent crimes per 1,000 residents, 42.9 property crimes per 1,000 residents, 11.6 traffic deaths per 100,000 residents, and “very high” risk for natural disasters, which makes sense in a city prone to tropical weather and flooding.

For all cities in the study, disaster risk and traffic deaths were measured at the county level.

Houston is the only Texas city to rank in the bottom 10. The other cities are:

  • 1. Memphis, Tennessee
  • 2. Houston, Texas
  • 3. St. Louis, Missouri
  • 4. San Francisco, California
  • 5. Kansas City, Missouri
  • 6. Albuquerque, New Mexico
  • 7. Oakland, California
  • 8. Nashville, Tennessee
  • 9. Philadelphia, Pennsylvania
  • 10. Detroit, Michigan

“While no major population center is entirely free from danger, some are more successful than others at creating environments where people can live, work and travel with confidence,” SmartAsset says.

Although this study paints Houston in a poor light, other reports take a more positive view. The "America's Best Cities" report from Canada-based real estate and tourism marketing firm Resonance Consultancy ranked as No. 9 in America out of 393 cities with a population of 500,000 or more. Houston also boasts Texas’ 10th best park system, according to its ParkScore Index.

While SmartAsset has bad news for Houston, the Dallas suburb of Plano ranked as the study’s second-safest big city. Compared to Houston, Plano fared well in three of the four categories: 1.5 violent crimes per 1,000 residents, 14.7 property crimes per 1,000 residents, and 6.9 traffic deaths per 100,000 residents. Its only shortcoming is a “relatively high” risk for natural disasters.

Elsewhere in Texas:

  • Fort Worth ranked No. 22
  • Austin ranked No. 26
  • San Antonio ranked No. 54
  • Dallas ranked No. 73
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This article originally appeared on CultureMap.com. Eric Sandler contributed to this article.

15+ startups fueling Houston's $1 billion funding haul for Q1-Q2 2026

cha-ching

Houston startups started 2026 strong, bringing in nearly $1 billion in venture capital in the first half of the year, Pitchbook data shows.

Here are 17 Houston companies that secured funding since January, according to reporting by InnovationMap and our sister site, EnergyCapitalHTX.com.

Did we miss a funding round? Let us know by emailing innoeditor@innovationmap.com.

Sage Geosystems

Sage Geosystems raised a $97 million Series B. Photo via sagegeosystems.com.

Houston-based geothermal energy startup Sage Geosystems closed its Series B fundraising round in January and plans to use the money to launch its first commercial next-generation geothermal power generation facility.

Ormat Technologies and Carbon Direct Capital co-led the $97 million round, according to a press release from Sage. Existing investors Exa, Nabors, alfa8, Arch Meredith, Abilene Partners, Cubit Capital and Ignis H2 Energy also participated, as well as new investors SiteGround Capital and The UC Berkeley Foundation’s Climate Solutions Fund.

The new geothermal power generation facility will be located at one of Ormat Technologies' existing power plants. The Nevada-based company has geothermal power projects in the U.S. and numerous other countries around the world. The facility will use Sage’s proprietary pressure geothermal technology, which extracts geothermal heat energy from hot dry rock, an abundant geothermal resource. Continue reading.

TrueLeap Inc.

Sandip Bordoloi and Sunny Zhang, founders of True Leap Inc. Photo via trueleapinc.com.

Houston-based edtech company TrueLeap Inc. closed an oversubscribed seed round in January.

The $3.3 million round was led by Joe Swinbank Family Limited Partnership, a venture capital firm based in Houston. Gamper Ventures, another Houston firm, also participated with additional strategic partners.

TrueLeap reports that the funding will support the large-scale rollout of its "edge AI, integrated learning systems and last-mile broadband across underserved communities." Continue reading.

Wellysis

Wellysis is known for its continuous ECG/EKG monitor with AI reporting, known as the S-Patch. Photo via wellysis.com.

Wellysis, a Seoul, South Korea-headquartered wearable biosensing company with its U.S. subsidiary based in Houston, closed a $13.5 million pre-IPO funding round in February and plans to expand its Texas operations.

The round was led by Korea Investment Partners, Kyobo Life Insurance, Kyobo Securities, Kolon Investment and a co-general partner fund backed by SBI Investment and Samsung Securities, according to a news release.

Wellysis reports that the latest round brings its total capital raised to about $30 million. The company is working toward a Korea Securities Dealers Automated Quotations listing in Q4 2026 or Q1 2027.

Wellysis is known for its continuous ECG/EKG monitor with AI reporting. Its lightweight and waterproof S-Patch cardiac monitor is designed for extended testing periods of up to 14 days on a single battery charge. Continue reading.

DexMat

DexMat plans to use its seed funding to commercially scale Galvorn, its carbon-based conductive fiber. Photo courtesy DexMat

Houston-based material science and climatech startup DexMat closed a $5 million seed round in February.

The round was led by non sibi ventures, with participation from Governance Partners, Tailwind Futures, BetterWay, Capital Factory and other investors. The company additionally announced that it has secured $3 million of non-dilutive funding.

DexMat plans to use the recent round to commercially scale Galvorn, its carbon-based conductive fiber. The high-performance copper alternative, originally developed at Rice University, is made from carbon nanotube (CNT) fibers, which are less energy- and CO2-intensive to produce. Continue reading.

Coya Therapeutics

Houston biotech co. raises $11M to advance ALS drug development

Coya Therapeutics plans to scale up manufacturing and prepare for the commercialization of COYA 302, its ALS therapy drug. Photo via Getty Images

Houston-based clinical-stage biotechnology company Coya Therapeutics (NASDAQ: COYA) closed a $11.1 million in a private investment round in February.

India-based pharmaceuticals company Dr. Reddy’s Laboratories Inc. led the round with a $10 million investment, according to a news release. New York-based investment firm Greenlight Capital, Coya’s largest institutional shareholder, contributed $1.1 million.

Coya reports that it plans to use the proceeds to scale up manufacturing of low-dose interleukin-2 (IL-2), which is a component of its COYA 302 and will support the commercial readiness of the drug. COYA 302 enhances anti-inflammatory T cell function and suppresses harmful immune activity for treatment of Amyotrophic Lateral Sclerosis (ALS), Frontotemporal Dementia (FTD), Parkinson’s disease and Alzheimer’s disease. Continue reading.

Utility Global

Utility Global’s H2Gen technology aims to decarbonize the heavy industrial sector. Photo courtesy of Utility Global

Houston-based Utility Global raised $100 million in an ongoing Series D round to globally deploy its decarbonization technology at an industrial scale, the company reported in February.

The round was led by Ara Partners and APG Asset, according to a news release. Utility plans to use the funding to expand manufacturing, grow its teams and support its commercial developments and partnerships.

Utility Global's H2Gen technology produces low-cost, clean hydrogen from water and industrial off-gases without requiring electricity. It's designed to integrate into existing industrial infrastructure in hard-to-abate assets in the steel, refining, petrochemical, chemical, low-carbon fuels, and upstream oil and gas sectors. Continue reading.

Cart.com

Cart.com raised $180 million to scale its logistics network, expand AI capabilities and develop workflow automation tools. Photo courtesy of Cart.com

Houston-based commerce and logistics platform Cart.com raised $180 million in growth capital from private equity firm Springcoast Partners, pushing the startup past the $1 billion funding mark since its founding in 2020, the company reported in March.

Cart.com says it will use the capital to scale its logistics network, expand AI capabilities and develop workflow automation tools. Continue reading.

Artemis

Houston-based Artemis, formerly Monalee, closed its latest funding round in March. Rendering courtesy Artemis.

Houston tech startup Artemis raised $6 million from 10 investors, it reported in March. The company offers an AI-supported platform that enables solar, battery storage and home improvement contractors to design, sell and finance energy projects.

Long Journey and Copec WIND Ventures co-led the round, with participation from angel investor Scott Banister, Coalition Operators, FJ Labs, Ludlow Ventures, Palm Tree Crew, Plug and Play Ventures, Shrug Capital and Tribeca Ventures.

To help propel growth, the company secured $10 million in financing last year (under its previous name, Monalee) from venture debt and growth credit provider Applied Real Intelligence. As Monalee, the company raised $16 million in venture capital. Continue reading.

Helix Earth

Helix Earth's technology is estimated to save up to half of the net energy used in commercial air conditioning, reducing both emissions and costs for operators. Photo via Getty Images

Houston-based Helix Earth Technologies closed a $12 million Seed 2 funding round to scale manufacturing of its energy-efficient commercial HVAC add-on technology in April.

Veriten, a Houston-based energy investment firm, led the round. Rua Ventures, Carnrite Ventures, Skywriter LLC and Textbook Ventures also participated.

Helix Earth—which was founded based on NASA technology, spun out of Rice University and has been incubated at Greentown Labs—is developing high-efficiency retrofit dehumidification systems that aim to reduce the energy consumption of commercial HVAC units. The company reports that its technology can lead to "healthier indoor air, lower energy bills, reduced building maintenance, and more comfortable spaces for building owners and occupants." Continue reading.

NanoTech Materials

The company has developed thermal insulation technology that improves efficiency and safety in buildings and outdoor infrastructure. Photo via LinkedIn

Houston-based NanoTech Materials closed a $29.4 million Series A in April.

The round was led by Austin-based HPI Real Estate & Investments. Houston-based Goose Capital and Austin-based Milliken & Company also participated.

Nanotech has developed its patented Insulative Ceramic Particle (ICP) technology, which reduces heat transfer in buildings and outdoor infrastructure, improving efficiency and safety. It's known for its Cool Roof Coat, Wildfire Shield and Insulative Coat: Cool Touch product lines. Continue reading.

Paige

Paige founder and CEO Emily Cisek. Photo courtesy Paige

Houston-based Paige, a comprehensive life planning and succession software company, secured a $2.5 million investment to expand the AI-driven tools on its platform this spring.

The funding comes from Alabama-based 22nd State Banking Company, according to a news release. Paige says it will use the funding to expand automation, AI-driven onboarding and self-service tools, as well as add to its sales and customer success teams.

The company was originally founded by CEO Emily Cisek in 2020 as The Postage and rebranded to Paige last year. It helps users navigate and organize end-of-life planning with features like document storage and organization, password management, and funeral and last wishes planning. Continue reading.

Ace Green Recycling

The company plans to use the funds to support its flagship Texas facility and planned merger. Photo via LinkedIn

Houston-based Ace Green Recycling raised $32 million in private investment in public equity (PIPE) financing to support its future plans for growth, the company reported in May.

The battery recycling technology company secured the financing with Athena Technology Acquisition Corp. II, a publicly traded special purpose acquisition company that Ace previously announced it plans to merge with. Once the merger is completed, Ace will become a publicly traded company on the Nasdaq Stock Exchange under the ticker symbol "AGXI."

Ace says the financing will be used to complete the merger and scale the company. Continue reading.

Casimir

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. Photo via casimir.inc

Houston-based Casimir emerged from stealth in May with a $12 million seed round to commercialize its quantum energy chip.

The round was led by Austin-based Scout Ventures. Lavrock Ventures, Cottonwood Technology, Capital Factory, American Deep Tech, and Tim Draper of Draper Associates also participated in the round. The oversubscribed round exceeded the company’s original $8 million target, according to a news release.

Casimir’s semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company plans to commercialize its first-generation MicroSparc chip by 2028. Continue reading.

VoltaGrid

VoltaGrid has developed a modular power generation system that improves reliability and limits emissions. Photo via voltagrid.com

Houston-based power generation startup VoltaGrid nailed down a $1 billion equity investment from asset management heavyweight Blackstone and Houston-based oilfield services provider Halliburton in May.

The investment came in two forms:

  • A $775 million primary capital raise
  • A $225 million secondary capital purchase from existing investors

VoltaGrid, founded in 2020, provides behind-the-meter mobile power generation equipment for data centers, microgrids and industrial customers. Continue reading.

Aquanta Vision

Babur Ozden is the founder and CEO of Aquanta Vision. Photo via LinkedIn

Houston climatech startup Aquanta Vision secured pre-seed funding to accelerate the commercialization of its methane leak detection software, the company announced in May.

EIC Rose Rock participated in the round, joining investors like Marathon Petroleum Corporation, Chevron Technology Ventures, Ecosphere Ventures, and Odyssey Energy Advisors. The investment follows successful field trials for Aquanta Vision’s optical gas imaging (OGI) detection software, according to the company. Continue reading.

Axiom Space

Axiom Space closed an oversubscribed $525 million round in June. Image via NASA

Axiom Space tacked on an additional $175 million to a previously announced capital raise in June, bringing the oversubscribed round to a total of more than $525 million.

Axiom shared in February that it had secured $350 million in a financing round led by Type One Ventures and Qatar Investment Authority. In June, the company reported that Japan-based MUFG Bank Ltd. joined the round as a new investor, in addition to continued participation from existing backers.

The funding will go toward developing the company's commercial space station, known as Axiom Station, and the production of its Axiom Extravehicular Mobility Unit (AxEMU) under its NASA spacesuit contract. Continue reading.

Receipts Depositary Corporation

The company's platform makes it easier to buy and trade hard-to-access and less traditional assets. File photo

Houston-based fintech company Receipts Depositary Corporation closed a $7 million oversubscribed funding round in June and plans to scale.

The round was led by Austin-based LiveOak Ventures, with participation from Hivemind Capital, Onigiri Capital, OTC Markets Group, GTS, and Redbeard Ventures, according to a release from RDC.

RDC's platform issues depositary receipts (DRs) to qualified investors on digital and alternative assets, making it easier for investors to buy and trade hard-to-access and less traditional assets. Continue reading.

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