3 Houston companies land on Deloitte’s Technology Fast 500 list

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Three Houston companies ranked on Deloitte's annual list, with two cracking the top 100. Photo via Getty Images

Three Houston companies have made this year’s Deloitte North America Technology Fast 500 list.

The report ranks the fastest-growing technology, media, telecommunications, life sciences, fintech, and energy tech companies in North America. The Houston companies to make the list, along with their revenue growth rates from 2021-2024, include:

No. 16 Action1 Corp., a provider of cybersecurity software. Growth rate: 7,265 percent
No. 92 Cart.com, a commerce and logistics platform. Growth rate: 1,053 percent
No. 312 Tellihealth, a remote health care platform. Growth rate: 244 percent

“Houston’s unique blend of entrepreneurial energy and innovation continues to strengthen the local business community, and I’m thrilled to see Houston companies honored on the 2025 Deloitte Technology Fast 500 list. Congratulations to all the winners,” said Melinda Yee, managing partner in Deloitte’s Houston office.

Action1 is no stranger to lists like the Deloitte Technology Fast 500. For instance, the company ranked first among software companies and 29th overall on this year’s Inc. 5000, a list of the country’s fastest-growing private companies. Its growth rate from 2021 to 2024 reached 7,188 percent.

Mike Walters, president and co-founder of Action1, said in August that the Inc. 5000 achievement “reflects the dedication of Action1’s global team, who continue to execute against an ambitious vision: a world where cyberattacks exploiting vulnerabilities are entirely prevented across all types of devices, operating systems, and applications.”

Atlanta-based Impericus, operator of an AI-powered platform that connects health care providers with pharmaceutical and life sciences companies, topped the Deloitte list with a 2021-24 growth rate of 29,738 percent.

“Our mission is to set the standard for ethical AI-powered physician connections to pharma resources, accelerating and expanding patient access to needed treatments,” said Dr. Osama Hashmi, a dermatologist who’s co-founder and CEO of Impiricus. “As we continue to innovate quickly, we remain committed to building ethical bridges across this vital ecosystem.”

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Houston gained 43,217 residents from July 2023 to July 2024. Photo via Getty Images

Houston boasts No. 2 biggest population gain in U.S., Census data shows

Boomtown

Houston saw the second-highest population increase in the United States in 2024, according to the U.S. Census Bureau.

The new population report revealed Houston gained 43,217 residents from July 2023 to July 2024, bringing the city's population to 2,390,125.

Houston hung on to its ranking as the fourth largest city in the country and joined 11 other Southern cities that saw the largest numeric population gains in 2024, the report added.

Elsewhere in Texas, Fort Worth is now home to more than 1 million residents, surpassing Austin as the 11th largest city in the U.S. Fort Worth had the fifth-highest numeric increase in population, adding 23,442 residents during that same time frame to bring the city's total population to 1,008,106 residents.

Dallas retained its No. 9 spot on the list of the 15 most populous cities in the U.S. The city gained more than 23,000 residents during the one-year period, bringing its population to 1,326,087 people in 2024.

Austin slipped two spots and now ranks as the 13th largest city after adding more than 13,000 residents to bring the Texas Capital's population to 993,588.

San Antonio gained 23,945 residents — the fourth-highest increase nationwide — and was the only other city besides Houston to have a higher numerical growth rate than Fort Worth during the one-year period.

Fastest-growing U.S. cities
Princeton, a North Texas suburb of Dallas, topped the charts as the No. 1 fastest-growing U.S. city in 2024. The Census Bureau says the city's population has more than doubled in the last five years to more than 37,000 residents.

Fulshear, 34 miles from downtown Houston, has continued its rapid expansion as the second-fastest growing city. The suburb grew nearly 27 percent since the previous year, and its population rose to 54,629 residents as of July 2024.

Five additional Texas cities made the list of fastest-growing U.S. cities:

Celina, near Dallas (No. 4) with 18.2 percent growth (51,661 total population)
Anna, near Dallas (No. 5) with 14.6 percent growth (31,986 total population)
Fate, near Dallas (No. 8) with 11.4 percent growth (27,467 total population)
Melissa, near Dallas (No. 11) with 10 percent growth (26,194 total population)
Hutto, near Austin (No. 13) with 9.4 percent growth (42,661 total population)

The Austin suburb of Georgetown's growth has continued to slow down since 2023, and it no longer appears in the list of fastest-growing cities. However, it did surpass 100,000 residents in 2024. San Angelo, a small city in West Texas, also surpassed the 100,000-population threshold.

Most populous U.S. cities in 2024
New York City maintained its stronghold as the biggest in America in 2024, boasting a population of nearly 8.5 million residents. Los Angeles and Chicago also retained second and third place, with respective populations of nearly 3.88 million and more than 2.7 million residents.

"Cities in the Northeast that had experienced population declines in 2023 are now experiencing significant population growth, on average," said Crystal Delbé, a statistician in the Census Bureau’s Population Division. "In fact, cities of all sizes, in all regions, showed faster growth and larger gains than in 2023, except for small cities in the South, whose average population growth rate remained the same."

The 15 populous U.S. cities as of July 1, 2024 were:

No. 1 – New York, New York (8.48 million)
No. 2 – Los Angeles, California (3.88 million)
No. 3 – Chicago, Illinois (2.72 million)
No. 4 – Houston, Texas (2.39 million)
No. 5 – Phoenix, Arizona (1.67 million)
No. 6 – Philadelphia, Pennsylvania (1.57 million)
No. 7 – San Antonio, Texas (1.53 million)
No. 8 – San Diego, California (1.4 million)
No. 9 – Dallas, Texas (1.33 million)
No. 10 – Jacksonville, Florida (1 million)
No. 11 – Fort Worth, Texas (1 million)
No. 12 – San Jose, California (997,368)
No. 13 – Austin, Texas (993,588)
No. 14 – Charlotte, North Carolina (943,476)
No. 15 – Columbus, Ohio (933,263)

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A version of this article originally appeared on CultureMap.com.

Fulshear is growing faster than any other wealthy suburb. Photo courtesy of City of Fulshear/Facebook

This Houston neighbor was the fastest growing U.S. city in last decade

Booming Burb

It's no secret that Houston's population is growing faster than most other metros in the U.S., but now a surprising Houston-area neighbor has been named the No. 1 fastest-growing suburb nationwide over the last decade: the booming city of Fulshear.

Fulshear led the nation with an astonishing 1,082 percent increase in population from 2014 to 2023, according to a recent growth study by marketplace platform StorageCafe.

Overall, Texas cities dominated StorageCafe's list of the top 10 fastest-growing U.S. cities from 2014 to 2023.

The report said the city had nearly 27,000 residents in 2023, but now the U.S. Census Bureau estimates Fulshear's population has now grown to more than 42,600 people.

"With its blend of a relaxed lifestyle, urban conveniences, top-rated schools and strong job opportunities, Fulshear consistently ranks among the best places to live in Texas," the report's author wrote.

This isn't the first time Fulshear has entered the spotlight for its exploding population: it was the No. 2 fastest-growing U.S. city in 2023, and recently came out on top of GoBankingRates' new study ranking of the fastest-growing affluent suburbs in America for 2025.

Several other Houston-area suburbs also saw major growth over the last decade, including Manvel (No. 24), Katy (No. 82), and Conroe (No. 83).

"Manvel doubled its population between 2014 and 2023, while Katy and Conroe each recorded increases of over 50 percent," the report said. "By contrast, Houston itself grew by just 6 percent, aligning with the average growth rate for large U.S. cities."

The report added that the Houston area's population surge has also led to a high demand for housing, where home values have risen 60 percent over the last 10 years. Home prices in Fulshear stood at more than $521,000 in November 2024, whereas Manvel's home prices were over $431,000 during that same period.

For comparison, the national average price of a home is $354,000.

Katy and Conroe had the most affordable home prices out of the four Houston suburbs in the report, at $347,740 and $318,952, respectively, for November.

StorageCafe says the reasons for population shifts vary greatly, with many people seeking out cities with a more affordable cost of living, or those moving for socioeconomic factors like better employment opportunities.

"Population growth is far from even across the U.S. Some cities are experiencing significant increases, directly driven by steady in-migration, rising immigration and birth rates outpacing death rates," the report said. "But what’s fueling these trends runs deeper — economic and social forces like shifting job markets, the rise of remote and hybrid work and soaring living costs are all reshaping where people choose to live."

Other fast-growing Texas cities
Texas had the greatest number of cities to earn spots in the report's ranking of the 100 fastest-growing U.S. cities over the last decade, with 25 total cities making the cut with the highest growth rates nationwide.

Dallas-Fort Worth had the highest number of fastest-growing Texas suburbs on the list, comprising 11 cities: Celina (No. 2), Melissa (No. 3), Princeton (No. 7), Prosper (No. 8), Fate (No. 9), Anna (No. 14), Midlothian (No. 33), Royse City (No. 43), Forney (No. 45), Little Elm (No. 58), and Frisco (No. 72).

Meanwhile, Austin had five suburbs land on the list: Manor (No. 6), Leander (No. 16), Kyle (No. 53), Hutto (No. 54), and Buda (No. 68).

San Antonio also had five suburbs make the top 100, including Boerne (No. 63), Selma (No. 74), Fair Oaks Ranch (No. 70), New Braunfels (No. 77), and Canyon Lake (No. 99).

The top 10 fastest-growing cities over the last decade are:

No. 1 – Fulshear, Texas
No. 2 – Woodbridge, Virginia
No. 3 – Celina, Texas
No. 4 – Davenport, Florida
No. 5 – Melissa, Texas
No. 6 – Manor, Texas
No. 7 – Princeton, Texas
No. 8 – Prosper, Texas
No. 9 – Fate, Texas
No. 10 – Nolensville, Tennessee

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This article originally appeared on our sister site, CultureMap.com.

Fulshear is growing faster than any other wealthy suburb. Photo courtesy of City of Fulshear/Facebook

This Houston neighbor is the fastest growing wealthy suburb in America

By The Numbers

The Houston-area city of Fulshear is booming like nowhere else: It's now the No. 1 fast-growing affluent suburb in the country.

Fulshear's No. 1 status was unveiled in a new GoBankingRates' study that ranked the "30 Fastest Growing Wealthy Suburbs in America" for 2025. The report examined population changes from 2018 to 2023 among cities and towns in major U.S. metro areas with populations between 25,000 and 100,000 residents. Median household income, average home value, and a "livability score" were also calculated for each locale.

Fulshear, located 34 miles west of downtown Houston, experienced the most dramatic population increase out of all 30 cities in the report. Though the suburb only has an estimated population of 42,616 residents, that number has skyrocketed 237 percent during the five-year period.

A Fulshear resident's median income is $178,398 annually, and the average value of a home in the city comes out to $521,157, the report additionally found.

Fulshear was the second fastest growing city in America in 2023. The city's growth is further reflected by the number of new apartments that were built in the area in 2024.

Texas is tops
Texas cities took the top three fastest growing U.S. suburbs for 2025, with Dallas-area cities of Celina (No. 2) and Prosper (No. 3) experiencing wildly different (yet still sky high) population changes. Celina's population ballooned 190 percent to 43,317 residents, while Prosper's grew 81 percent to an estimated 41,660 people.

Other Texas cities that earned spots in the report include Flower Mound (No. 19), Southlake (No. 27), University Park (No. 28) and Colleyville (No. 29), all in the Dallas-Fort Worth area.

"The old adage that everything is bigger in Texas is true, considering the number of Lone Star State suburbs that are quickly growing in population and overall wealth," the report's author wrote.

The top 10 fastest growing wealthy suburbs in America are:

No. 1 – Fulshear, Texas
No. 2 – Celina, Texas
No. 3 – Prosper, Texas
No. 4 – Erie, Colorado
No. 5 – Clarksburg, Maryland
No. 6 – Zionsville, Indiana
No. 7 – Redmond, Washington
No. 8 – Dublin, California
No. 9 – Parkland, Florida
No. 10 – Eastvale, California

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This story originally appeared on our sister site CultureMap.com.

Turns out, everyone wants to live here. Photo via Getty Images

Houston named 4th most populous city in U.S. — with the greatest housing growth — in new Census report

welcome, newstonians

Houston is the fourth most populous U.S. city, and saw the ninth largest numeric population gain of any U.S. city in 2022, according to the U.S. Census Bureau's latest findings.

From July 2021 to July 2022, Houston added 11,223 new residents, bringing its total population to 2,302,878. By comparison, San Antonio (population just under 1.5 million) is the seventh largest.

Harris County also led the way with the highest numeric gains for housing units in the nation, at 32,694, coinciding with recent reports deeming Houston the most active real estate market within the last decade.

Together, Houston-The Woodlands-Sugar Land ranked No. 5 in the list of the 10 most populous U.S. metro areas (as opposed to the cities, themselves). Dallas-Fort Worth-Arlington ranked one place higher at No. 4.

Texas cities and towns dominated every list in the new Census Bureau report. "Texas was the only state that had more than three cities on both the 15 fastest-growing large cities and towns by numeric change and by percent change lists," the report says.

Fastest-growing cities
Six out of the 15 fastest-growing cities in the United States are in Texas, and with one Houston suburb – Conroe – landing at No. 11. Conroe had an 6.3 percent population increase from July 2021 to July 2022, bringing the city's total population just over 101,400.

The north Austin suburb of Georgetown had the highest growth rate in the nation, at 14.4 percent, bringing the city's total population to more than 86,500 residents. Surrounding Austin suburbs Kyle and Leander landed in No. 3 and No. 4 with the same population growth rate of 10.9 percent.

The not-so-little Dallas suburb Little Elm zoomed all the way up to No. 5 with an 8 percent population increase, bringing the city's total population to more than 55,300 residents. New Braunfels, which is outside San Antonio, came in at No. 13.

The top 15 fastest-growing large cities in the U.S. are:

No. 1 – Georgetown, Texas
No. 2 – Santa Cruz, California
No. 3 – Kyle, Texas
No. 4 – Leander, Texas
No. 5 – Little Elm, Texas
No. 6 – Westfield, Indiana
No. 7 – Queen Creek, Arizona
No. 8 – North Port, Florida
No. 9 – Cape Coral, Florida
No. 10 – Port St. Lucie, Florida
No. 11 – Conroe, Texas
No. 12 – Maricopa, Arizona
No. 13 – New Braunfels, Texas
No. 14 – Lehi, Utah
No. 15 – Medford, Massachusetts

Largest population increases
When it comes to most populous cities overall, Texas takes five of the 15 top spots with Houston claiming No. 1 in the state. After Houston's No. 4 national rank with its population of over 2.3 million, San Antonio earned No. 7 with over 1.47 million residents, and Dallas at No. 9 with just under 1.3 million residents. Austin barely made it into the top 10 with over 974,000 residents, and Fort Worth ranked No. 13.

The top 15 most populous American cities are:

No. 1 – New York City
No. 2 – Los Angeles
No. 3 – Chicago
No. 4 – Houston
No. 5 – Phoenix
No. 6 – Philadelphia
No. 7 – San Antonio, Texas
No. 8 – San Diego, California
No. 9 – Dallas
No. 10 – Austin, Texas
No. 11 - Jacksonville, Florida
No. 12 - San Jose, California
No. 13 - Fort Worth, Texas
No. 14 - Columbus, Ohio
No. 15 - Charlotte, North Carolina

Greatest housing growth
The report also discovered that housing inventory skyrocketed by 1.6 million units between 2021 and 2022. Texas had the third fastest housing growth with a rate of 2.3 percent, versus Utah, which had the fastest growth at 3.3 percent.

In addition to Harris County, the only other Texas county that made the top five for the highest housing growth was Travis (No. 3).

The full report can be found on census.gov.

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This article originally ran on CultureMap.

Here's what Houston company scored the No. 2 spot among the fastest-growing private companies in the Southwest. Photo via Getty Images

Houston companies snag spots on regional Inc. 5000 list

by the numbers

Revenue growth is on fire at Houston-based Simple Solar.

Revenue at Simple Solar, a provider of residential solar installations, soared 8,007 percent from 2019 to 2021, putting it at No. 2 among the fastest-growing private companies in the Southwest. It leads the list of 25 Houston-area companies appearing in the new Inc. 5000 Regional rankings for the Southwest.

Between 2019 and 2021, the 165 private companies on the Southwest list posted an average growth rate of 557 percent. In 2021 alone, they added 16,116 jobs and nearly $5.5 billion to the Southwest’s economy.

“This year’s Inc. 5000 Regional winners represent one of the most exceptional and exciting lists of America’s off-the-charts growth companies,” says Scott Omelianuk, editor-in-chief of Inc. magazine. “They’re disruptors and job creators, and all delivered an outsized impact on the economy. Remember their names and follow their lead. These are the companies you’ll be hearing about for years to come.”

Here are the 25 Houston-area companies that made the Inc. 5000 Regional list for the Southwest, including their regional rankings.

No. 2 Simple Solar, Houston-based provider of residential solar installations, 8,007 percent growth
No. 6 Medical Edge Recruitment, The Woodlands-based health care recruiting and staffing firm, 2,980 percent growth
No. 8 Specialty1 Partners, Houston-based provider of surgical support services for dental practices, 2,921 percent growth
No. 15 Magnolia-based online women’s clothing retailer Jess Lea, 1,471 percent growth
No. 36 Houston-based accounting and advisory firm EFS Group, 458 percent growth
No. 39 Blackbuck Resources, Houston-based designer, builder, and operator of water infrastructure for the oil and gas industry, 432 percent growth
No. 48 Leveled Concrete, Houston-based provider of concrete and foundation repair services, 298 percent growth
No. 52 iCRYO Brands, Houston-based franchisor of cryotherapy centers, 269 percent growth
No. 53 TAXA Outdoors, Houston-based retailer of camping trailers, 268 percent growth
No. 58 Proxima Clinical Research, Houston-based contract research organization, 243 percent growth
No. 64 Ledge, Katy-based seller of in-pool and backyard furniture and accessories, 234 percent growth
No. 66 TekRevol, Houston-based software developer, 226 percent growth
No. 79 Finish Line Tax Solutions, Houston-based tax relief firm, 194 percent growth
No. 82 Incfile, Houston-based provider of services for small businesses, 192 percent growth
No. 99 Flocknote, Magnolia-based provider of technology that helps churches boost attendance and foster connections, 152 percent growth
No. 125 Onit, Houston-based developer of workflow and AI software, 104 percent
No. 137 InterLinc Mortgage, Houston-based mortgage lender, 85 percent growth
No. 140 Classy Art, Houston-based supplier of wall décor, 83 percent growth
No. 145 Zulie Venture (Cellpay), Sugar Land-based provider of prepaid wireless services, 78 percent growth
No. 149 Total Pump Solutions, Houston-based distributor of fire suppression equipment, 75 percent growth
No. 155 Construction Concepts, Houston-based commercial construction firm, 67 percent growth
No. 157 Energy Ogre, Houston-based service that helps consumers find electricity plans, 63 percent growth
No. 164 Garrison Construction Group, Houston-based commercial construction firm, 60 percent growth
No. 165 Technocrats Domain, Houston-based provider of IT services, 60 percent growth
No. 166, G&A Partners, Houston-based professional employer organization, 60 percent growth

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Rice University breaks ground on new innovation hub, The Arc

breaking ground

Construction is officially underway on Rice University's The Arc in Houston’s Ion District.

The university broke ground on the 200,000-square-foot research, corporate innovation and office building on Nov. 4. The facility will share a plaza with the existing Ion building, fostering collaboration within the innovation space, according to Rice.

“The Arc will bring Rice’s extraordinary research and talent and Houston’s impactful innovation ecosystem into even closer connection with the industries and innovators working to solve some of the world’s most consequential challenges,” Rice President Reginald DesRoches said in an announcement. “That constant exchange of ideas and expertise will help move discoveries more rapidly from the laboratory to real-world impact.”

Construction is scheduled to be completed by Q2 2028. Rice Real Estate Co. is developing the project, and Rice University will occupy about 80,000 square feet in the building (about 40 percent). Preleasing has begun, with floor plans ranging from 28,000 to 31,000 square feet.

The Arc will feature conference and meeting spaces, an amenity lounge, fitness center, outdoor plazas, underground parking, and on-site retail and dining, according to the release.

It aims to host tenants focused on artificial intelligence and machine learning, data science, robotics, quantum science and engineering and energy, including Rice's new AI Foundry.

Rice says the AI Foundry will be a space where university experts and partners can support organizations with AI challenges. Rice recently committed to hiring 75 new AI-focused faculty and announced plans to launch a new Master of Artificial Intelligence (MAI) next fall.

“The AI Foundry is exactly the kind of collaboration the Arc is designed to enable,” Amy Dittmar, the Howard R. Hughes Provost and executive vice president for academic affairs at Rice, added in the release. “By bringing Rice researchers together with industry partners in a shared environment, we can accelerate the movement of ideas from research into practical applications while helping organizations build the capabilities they need to succeed as AI continues to evolve.

Developers of The Arc are targeting LEED Gold certification by incorporating smart building automation and energy-saving features into the project's design. Rice first announced the project in September 2025.

Rendering courtesy Bogza

Houston battery tech startup FlowCellutions acquired by Katy energy co.

M&A

Katy-based TerraFlow Energy, an energy storage and infrastructure company, has acquired Houston-based battery technology startup FlowCellutions. Financial terms weren’t disclosed.

FlowCellutions still operates under its established name, but with the tagline “A TerraFlow Energy Company.” Becca Segel, founder and CEO of FlowCellutions, now runs the business as its president.

FlowCellutions specializes in electrochemical sensing, diagnostics, analytics, and testing that offer insights into battery chemistry, charging capabilities, and system performance.

“FlowCellutions has always been focused on developing better ways to understand what is happening inside a flow battery and using that information to improve how these systems perform,” Segal said in a press release. “Joining TerraFlow gives us the opportunity to apply that work at a much larger scale while continuing to build the capabilities and expertise that make FlowCellutions unique.”

The FlowCellutions platform supports data centers and other heavy users of power. It’s designed to help reduce operating costs, prevent failures and costly downtime, and extend battery lifetime from about seven years to more than 30 years.

Segel founded the company in 2022. A member of Greentown Labs, the company raised more than $2 million in non-dilutive funding and received $1.5 million in National Science Foundation funding earlier this year.

FlowCellutions is one of five finalists in the Energy Transition Business category of InnovationMap’s 2026 Houston Innovation Awards.

“FlowCellutions brings a depth of scientific and technical expertise that fits naturally with where TerraFlow is going,” Jon Parrella, CEO of TerraFlow, said in the release.

“As we move from developing these systems to deploying them at commercial scale, understanding performance at a deeper level matters,” he said. “Bringing FlowCellutions into TerraFlow strengthens that capability and gives both teams more opportunity to advance the technology.”TerraFlow, founded in 2024, develops long-duration energy storage and power infrastructure for data centers, industrial facilities, utilities and other large power consumers.

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This article originally appeared on EnergyCapitalHTX.com.

3 fast-growing Houston scaleups named Innovation Awards finalists

meet the finalists

From IPOs to groundbreakings, some of Houston's most innovative companies reached major milestones this year.

As part of the 2026 Houston Innovation Awards, our Scaleup of the Year category honors innovative later-stage startups that have recently reached a significant milestone in company growth. Three scaleups have been named finalists for the 2026 award.

Read more about these businesses, their founders and their breakthrough technologies below. The 2026 winners will be announced on InnovationMap.com in mid-November.

Erock

Energy infrastructure company Erock, previously known as Enchanted Rock, develops dual-purpose microgrids that rely on natural gas and renewable natural gas to produce lower carbon emissions and air pollutants than diesel generators. Its products can provide bridge power before grid interconnection, backup power during outages and dispatchable capacity that supports long-term grid reliability. The company has more than 1,100 megawatts of installed capacity and over 20 years of experience serving commercial, municipal and large-scale technology customers.

Erock completed its initial public offering this year, raising approximately $600 million in gross proceeds. It also grew its contracted power system sales backlog to approximately $1.7 billion, up tenfold year-over-year, with production sold out through 2028, according to the company's application. The company secured a major equipment order from Anthropic, began construction of the 366-megawatt El Paso Electric project supporting Meta's data center campus, and started assembly operations at its Hyperion facility in Cypress, Texas.

Hertha Metals

Hertha Metals produces lower-cost, lower-emission steel and high-purity iron. The company has developed a single-step process that uses natural gas as a direct reductant instead of metallurgical coal, which cuts production costs by more than 25 percent and emissions by up to 50 percent, according to the company. The same process produces high-purity iron needed for high-purity steels and rare earth magnets. The company says it aims to "re-industrialize America’s production of critical materials."

Hertha Metals was founded by CEO Laureen Meroueh in 2022 and emerged from stealth last year with more than $17 million in venture capital funding. The company closed a $133.65 million Series A this month and also broke ground on its $100M high-purity iron factory known as Chalyx in Conroe.

Venus Aerospace

Spacetech company Venus Aerospace is developing a high-thrust rotating detonation rocket engine (RDRE) that replaces the subsonic combustion used in conventional rocket engines. The RDRE is a compact, simpler engine that can deliver up to 15 percent greater efficiency for defense and space applications. It completed its first U.S. flight test of the engine last summer.

Venus Aerospace was founded in 2020 by CEO Cassie Duggleby and CTO Andrew Duggleby. It raised a $20 million Series A in 2022 and $42 million Series A2 in 2025. It closed a $91 million Series B earlier this year and expanded its leadership team. The company is working toward longer-duration and higher-thrust testing and advancing its flight program.

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