New downtown Houston hub opens to support energy transition innovators

now open

Energy Tech Nexus has opened in downtown Houston. Photo by Natalie Harms/EnergyCapital

Three Houston energy innovators have cut the ribbon on a new space for energy transition innovation.

The Energy Tech Nexus, located in the historic Niels Esperson Building at the corner of Travis and Rusk Avenue, opened on September 10, which was proclaimed Energy Tech Nexus Day by the city.

Jason Ethier and Juliana Garaizar, formerly in leadership roles at Greentown Labs, teamed up with Nada Ahmed, previously headed innovation and transformation at Aker Solutions, launched ETN as a community for energy transition startups. The new hub plans to host incubation programs, provide mentorship, and open doors to funding and strategic partnerships for its members.

"We are creating more than a space for innovation," Garaizar, who serves as CEO of ETN, says in a news release. "We are crafting a community where pioneers in technology and energy converge to challenge the status quo and accelerate the shift to sustainable energy solutions."

The hub describes its goal of tackling the "trilemma" of energy security, sustainability, and affordability while also contributing to the mission of setting up Houston as the global center for energy transition. To accomplish that mission, ETN will help facilitate rapid deployment of cutting-edge energy technologies.

'The future of energy is not just being written here in Houston; it's being rewritten in more sustainable, efficient, and innovative ways," adds Garaizar. "Houston provides the perfect backdrop for this transformation, offering a rich history in energy and a forward-looking approach to its challenges and opportunities."

"We believe that a broad spectrum of perspectives is crucial in solving global energy challenges. It's about bringing everyone to the table — startups, industry leaders, and investors from all backgrounds," she continues.

Ethier, who co-hosts the Energy Tech Startups Podcast with Ahmed, says he hopes that ETN acts as a meeting place for energy transition innovators.

"By providing the right tools, access, and expertise, we are enabling these companies to leap from ideation to implementation at an unprecedented pace;" Ethier explains. "The interaction between startups and established companies within Energy Tech Nexus creates a unique synergy, fostering innovations that might otherwise take years to mature in isolation."

Payal Patel, an angel investor who has held leadership roles at Station Houston, Plug and Play Ventures, and Softeq, also contributed to launching ETN, which is collaborating with George Liu, who has over 15 years of investment banking experience across energy, cleantech and hardtech with more than $20 billion in M&A projects across his career.

In May, ETN teamed up with Impact Hub Houston to establish the Equitable Energy Transition Alliance and Lab to accelerate startup pilots for underserved communities. The initiative announced that it's won the 2024 U.S. Small Business Administration Growth Accelerator Fund Competition, or GAFC, Stage One award.

ETN celebrated its opening during the inaugural Houston Energy and Climate Week.

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This article originally ran on EnergyCapital.

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Esperson Flex plans on expanding within the historic Niels Esperson Building in the next five years. Photo via espersonflex.com

Historic downtown Houston building plans to expand inclusive coworking for entrepreneurs

moving on up

A nearly 100-year-old building in downtown Houston is welcoming in entrepreneurs, small business owners, and enterprise firms with a new opportunity to innovate outside of traditional office spaces.

Esperson Flex — a coworking concept managed by Cameron Management in The Niels Esperson Building, which has stood out in Houston's skyline since its inception in 1927 — offers various membership tiers in its facility featuring private offices, desk space, conference room, and access to the overall area for freelancers. As an add-on option to the membership, members will have the opportunity to connect with other entrepreneurs through offering reciprocal daily use passes to Cannon members and allow them to book the conference rooms.

“Coworking allows small entrepreneurs to have a community and startup ecosystem that is very cheap and very flexible," Cameron Management CEO Dougal Cameron tells InnovationMap. “They can invest money in their enterprise instead of signing expensive long leases.”

Photo via espersonflex.com

Esperson coworkers have access to The Cannon's digital platform, Cannon Connect, which provides a digital platform for connections, resources, and services to investors, entrepreneurs, startups, and small businesses.

Currently, the offering of the venue is 12,300 square feet and 62 percent of it is leased.The company hopes to expand the coworking facilities to 62,000 square feet in the next five years, according to Cameron.

There are seven groups who are growing their own coworking business under the Esperson and Cameron Management umbrella, and some include working with groups that are specifically targeting often overlooked demographics, including Hispanic, Black, and female entrepreneurs. The Us Space, for instance, is a women of color-focused collective providing support and coworking for its community.

“We believe that entrepreneurship is the answer to many important problems in our world,” Cameron Management CEO Dougal Cameron tells InnovationMap.

In addition, the facility works with the Prison Entrepreneurship Program, which is a comprehensive re-entry program to help empower those trying to change their lives.

Photo via espersonflex.com

Located downtown, Esperson Flex is the latest in flexible work spaces by Cannon, which also include locations in the Energy Corridor, Houston Galleria, Galveston, The Woodlands, and, as of this week, Memorial.

Spaces like Esperson Flex have become increasingly popular for remote workers, and in some cases, have shown increases in overall productivity. In a survey conducted by Airtasker, remote employees worked 1.4 more days every month, than office workers, which equals 16.8 more days every year. In a similar survey by the Gartner 2021 Digital Worker Experience Survey, 43 percent said that flexible working hours helped them achieve more productivity.

The Cannon, too, has seen coworking and community-building opportunities from all corners of Houston, as the company's CEO, Jon Lambert, shared on the Houston Innovators Podcast.

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Houston aerospace co. soars with first U.S. test flight of hypersonic engine

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Houston-based Venus Aerospace successfully completed the first U.S. flight test of its proprietary engine at a demonstration at Spaceport America in New Mexico.

Venus’ next-generation rotating detonation rocket engine (RDRE) is supported by a $155,908 federal Small Business Innovation Research (SBIR) grant from NASA and aims to enable vehicles to travel four to six times the speed of sound from a conventional runway. The recent flight test was the first of an American-developed engine of its kind.

"With this flight test, Venus Aerospace is transforming a decades-old engineering challenge into an operational reality,” Thomas d'Halluin, managing partner at Airbus Ventures, an investor in Venus, said in a news release. “Getting a rotating detonation engine integrated, launch-ready, and validated under real conditions is no small feat. Venus has shown an extraordinary ability to translate deep technical insight into hardware progress, and we're proud to support their bold approach in their attempt to unlock the hypersonic economy and forge the future of propulsion."

Venus’ RDRE operates through supersonic shockwaves, called detonations, that generate more power with less fuel. It is designed to be affordable and scalable for defense and commercial systems.

The RDRE is also engineered to work with the company's air-breathing detonation ramjet, the VDR2, which helps enable aircraft to take off from a runway and transition to speeds exceeding Mach 6. Venus plans for full-scale propulsion testing and vehicle integration of this system. Venus’ ultimate goal is to develop a Mach 4 reusable passenger aircraft, known as the Stargazer M4.

"This milestone proves our engine works outside the lab, under real flight conditions," Andrew Duggleby, Venus co-founder and chief technology officer, said in the release. "Rotating detonation has been a long-sought gain in performance. Venus' RDRE solved the last but critical steps to harness the theoretical benefits of pressure gain combustion. We've built an engine that not only runs, but runs reliably and efficiently—and that's what makes it scalable. This is the foundation we need that, combined with a ramjet, completes the system from take-off to sustained hypersonic flight."

The hypersonic market is projected to surpass $12 billion by 2030, according to Venus.

"This is the moment we've been working toward for five years," Sassie Duggleby, CEO and co-founder of Venus Aerospace, added in the release. "We've proven that this technology works—not just in simulations or the lab, but in the air. With this milestone, we're one step closer to making high-speed flight accessible, affordable, and sustainable."

Houston-founded startup raises $1.2M and moves headquarters to Detroit

moving forward

Houston-founded ChurchSpace, known as the Airbnb for churches, has formed an official partnership with the City of Detroit and will relocate its headquarters.

The announcements come as the company successfully closed a $1.2 million oversubscribed funding round. The round was led by California-based Black Ops Ventures, with participation from Michigan Rise and Dug Song of Minor Capital, who is also the founder of the Song Foundation, another Michigan-based organization.

"This raise is more than a business milestone—it's a testament to what happens when strategy meets faith. In today's climate, raising capital takes grit and resilience—especially without deep networks or traditional access. By God's grace, doors have opened, and our mission is clearer than ever. Now, with capital in hand, we're building boldly toward a future where the Church isn't just surviving—but leading community transformation," Emmanuel Brown, co-founder and CEO of ChurchSpace, said in a statement.

In Detroit, ChurchSpace plans to activate underutilized church campuses as micro-logistics spaces for food distribution and retail partnerships, as well as last-mile delivery centers. To kick off its relocation, ChurchSpace will host a Detroit Pastor Meetup on July 19.

"We welcome ChurchSpace's investment in Detroit and the jobs and innovation it will bring," Detroit Mayor Mike Duggan added in the release. "Our faith community has long been a critical backbone of our neighborhoods. Through ChurchSpace's groundbreaking work, they will continue to be anchors of opportunity and resilience in our city's future."

ChurchSpace was originally founded to convert underutilized church real estate into event, meeting and commercial kitchen space to boost revenue and relieve financial burden while remaining compliant with IRS regulations for non-profits. The company participated in the inaugural cohort of the AWS Impact Accelerator for Black Founders, which included a pre-seed fundraising campaign and a $125,000 equity injection from Amazon in 2022. It was also one of two Houston companies to receive $100,000 as part of the Google for Startups Black Founders Fund that same year.

The company reports that its platform in Texas has generated up to $100,000 annually in new revenue that was reinvested into church ministries, food programs and community initiatives.

"What we built in Houston was more than technology—it was transformation. We expanded our purpose and packaged proven strategies to help churches thrive, transform communities, and even combat food insecurity," Day Edwards, co-founder and president of ChurchSpace, added in the statement. "Now, with prayer and the support of our team and investors, we're bringing that same impact to Detroit—to help churches, communities, and small businesses redefine pulpits and rediscover communal possibilities."

Houston space tech co. lands millions and more innovation news to know

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Editor's note: It's time to recap the top innovation news for the first half of May 2025. Our five most-read stories from May 1-15 include updates from Intuitive Machines and The Ion. Plus, driverless trucks hit the road from Houston to Dallas. Get all of the details below.

1. Houston space tech leader lands up to $10 million for Earth re-entry vehicle and lab

The Texas Space Commission has selected Houston's Intuitive Machines to develop a vehicle that will return lunar samples to Earth, along with an orbital fabrication lab. Photo courtesy Intuitive Machines.

Houston-based space technology, infrastructure, and services company Intuitive Machines has been awarded a state grant of up to $10 million to help develop an Earth re-entry vehicle and in-space biomanufacturing lab. The Texas Space Commission approved the grant, which is coming from the state’s Space Exploration and Research Fund. Intuitive Machines says the money will support its “critical risk-reduction platform” for returning lunar samples to Earth. The funding will go toward an early 12-month phase of the project. Continue reading.

2. 9 can't-miss Houston business and innovation events for May

Don't miss these May events — from an investor activation series to a crawfish cook-off. Photo courtesy Greentown Labs.

There's a lot to learn this month at events around Houston. Hear from AI and energy experts or gain insights into how to tap into funding at informative panels or sessions. Continue reading.

3. Autonomous truck company rolls out driverless Houston-Dallas route

Aurora began regular driverless deliveries between Houston and Dallas on April 27. Photo courtesy Aurora.

Houston is helping drive the evolution of self-driving freight trucks. In October, Aurora opened a more than 90,000-square-foot terminal at a Fallbrook Drive logistics hub in northwest Houston to support the launch of its first “lane” for driverless trucks—a Houston-to-Dallas route on the Interstate 45 corridor. Aurora opened its Dallas-area terminal in April and the company began regular driverless customer deliveries between the two Texas cities on April 27. Continue reading.

4. Texas-based 'DoorDash for laundry' startup tumbles into Houston market

The service has been a smash success in Austin. Courtesy photo

Laundry may seem like an endless task that piles up, but a new service offers a solution to overwhelmed Houston families. NoScrubs, an Austin-based home laundry pickup service has just expanded to Houston. Described by the company as "DoorDash — but for laundry," they wash customer's clothes at local laundromats and return them the same day, folded and ready to be put away. The service took off like gangbusters in Austin, making an expansion to the state's largest city an obvious choice. Continue reading.

5. New energy innovation and coworking spaces open at the Ion

The Oxy Innovation Center has opened at the Ion and Industrious' coworking space launches soon. Photo courtesy of The Ion

Houston-based Occidental officially opened its new Oxy Innovation Center with a ribbon cutting at the Ion. The opening reflects Oxy and the Ion's "shared commitment to advancing technology and accelerating a lower-carbon future," according to an announcement from the Ion. Oxy, which was named a corporate partner of the Ion in 2023, now has nearly 6,500 square feet on the fourth floor of the Ion. Rice University and the Rice Real Estate Company announced the lease of the additional space last year, along with agreements with Fathom Fund and Activate. Continue reading.

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