The Rice Alliance for Technology and Entrepreneurship handed out awards to the founders of the most promising companies that pitched. Photo courtesy of Slyworks Photography/Rice Alliance

Nearly 100 energy tech startups pitched at the 19th annual Rice Alliance Energy Tech Venture Forum this week — and over a third of those companies are based in the Houston area.

At the conclusion of the event — which took place on Thursday, September 15, at Rice University, and included a day full of company pitches, panels, and thought leadership — 10 startups were deemed the most promising among their peers. The group was voted on by investors attending office hours ahead of the event.

The Rice Alliance for Technology and Entrepreneurship facilitated nearly 700 meetings between 70 investor groups and 90 ventures, according to the organization. The group of presenting companies included participants from Rice's Clean Energy Accelerator's first two cohorts.

Here are 10 of the energy tech industry's most promising companies — and the technology they are working on that's set to disrupt the status quo.

Arolytics

Based in Calgary and founded in 2018, Arolytics is a software company that specializes in emissions management, ESG performance, and regulatory compliance. The company's platform is able to save its users up to 40 percent of their associated measurement costs and emissions management.

Atargis Energy

Atargis Energy is based in Pueblo, Colorado, and is a a member of Rice's second cohort of its Clean Energy Accelerator. The company has developed a twin hydrofoil-based wave energy converter that creates electric power from ocean waves. The technology is paired with real-time sensors and machine learning to optimize power conversion.

Compact Membrane Systems

Based in Delaware, Compact Membrane Systems, is pioneering membrane systems for decarbonizing hard-to-abate chemical manufacturing and industrial carbon capturing. The technology has the potential to revolutionize the chemicals industry.

Dimensional Energy

Dimensional Energy, based in Ithaca, New York, is transforming carbon dioxide into sustainable aviation fuels and products at market competitive prices. The technology integrates carbon capture, electrolysis, and Fischer Tropsch synthesis.

Kanin Energy

Headquartered in Houston, Kanin Energy works with heavy Industry to turn their waste heat into a clean baseload power source. The platform also provides tools such as project development, financing, and operations.

Orbital Sidekick

Orbital Sidekick, based in San Francisco, is an intelligence and analytics company that specializes in remote detection of environmental hazards by way of hyperspectral satellites. The technology provides actionable insights for its customers.

Power to Hydrogen

Based in Columbus, Ohio, Power to Hydrogen has developed an AEM-based electrolysis technology that produces high pressure, high efficiency hydrogen at low cost via water and renewable energy.

Quino Energy

Another Clean Energy Accelerator Class 2 member, Quino Energy produces flow battery systems with over eight hours of energy storage. The batteries are cheaper than lithium-ion alternatives, as well as being safer and easier to scale.

STARS Technology

Based in Richland, Washington, STARS Technology Corp. is commercializing advanced micro-channel chemical process technology that originally was designed for NASA and the Department of Energy. The company's reactors and heat exchangers are compact, energy-efficient, and more.

Syzygy Plasmonics

Houston-based Syzygy Plasmonics is commercializing its light-reacting energy, which would greatly reduce carbon emissions in the chemical industry. The technology originated out of Rice University.

Ad Placement 300x100
Ad Placement 300x600

CultureMap Emails are Awesome

6+ can't-miss Houston business and innovation events in March

where to be

Editor's note: March brings the return of some of Houston’s signature innovation events, plus insightful talks and celebrations in honor of Women's History Month. Here’s what not to miss and how to register. Please note: this article may be updated to include additional event listings.

March 3-4 — Houston MedTech Rodeo

Head to Armadillo Palace for the annual Houston MedTech Rodeo. The casual, Texas-themed conference brings together 350 medtech professionals who come from over 10 countries and 15 states to highlight Houston's growing medtech ecosystem. The event will feature panel discussions, startup showcases, networking sessions—plus, armadillo races, mechanical bull riding and live country music.

The event begins March 3 at Armadillo Palace on Kirby Drive. Register here.

March 4 – Humans of Healthcare

Houston Methodist Center for Innovation will present its new quarterly speaker series, Humans of Healthcare. The series will feature a panel of experts who will share about their career paths and discuss the nuances of the health care industry. This month's session will focus on IT. The panel will be moderated by Houston Methodist's Director of Innovation Murat Uralkan.

The event is Wednesday, March 4, from 5-6 p.m. at the Ion. Register here.

March 5 — The Future of Women in STEM

Celebrate Women's History Month at SUPERGirls SHINE Foundation's The Future of Women in STEM event, presented in partnership with the Ion. The event will feature speakers and panelists, including Kalila Winters Hines, senior public affairs advisor for Holland & Knight; Dr. Natacha Chough, NASA Johnson Space Center Flight Surgeon; and Andrea Course, rocket scientist and founder of Course Investments.

The event is Thursday, March 5, from 8:30-10 a.m. at the Ion. Register here.

March 10-12 — World Hydrogen & Carbon Americas

S&P Global Energy brings together two leading events—Carbon Management Americas and World Hydrogen North America—to form a new must-attend event for those in the hydrogen and carbon industries. More than 800 senior leaders from across the energy value chain will attend this event featuring immersive roundtable discussions, hands-on training, real-world case studies and unparalleled networking opportunities.

This event begins March 10 at the Marriott Marquis Houston. Register here.

March 20 — Ideas to Impact Accelerator Graduation and Showcase

Join Impact Hub Houston as it celebrates its inaugural Ideas to Impact Accelerator cohort. The 16-week accelerator is designed to help early-stage entrepreneurs validate their business models, strengthen confidence and gain traction. Hear short pitches and network with founders and mentors.

The event is Friday, March 20, from noon-2 p.m. at the Ion. Register here.

March 23-27 — CERAWeek 2026

CERAWeek 2026 will focus on "Convergence and Competition: Energy, Technology and Geopolitics." The industry's foremost thought leaders will convene in Houston to cultivate relationships and exchange transformative ideas during the annual event. CERAWeek 2026 will explore breakthroughs, cross-industry connections and powerful partnerships that are accelerating the transformation of the global energy system. 2026 highlights include an appearance by tech magnate Bill Gates.

This event begins March 23. Register here.

March 24-25 — 2026 Energy Venture Day and Pitch Competition

The Energy Venture Day and Pitch Competition, co-hosted by the Rice Alliance, Ion, HETI and TEX-E, offers two days of exciting pitches from more than 40 global energy ventures that are transforming the industry. On Tuesday, March 24, you can attend a fast-paced pitch preview event at the Ion, followed by the official Pitch Competition at 1 pm on Wednesday, March 25, at the George R. Brown Convention Center.

March 30-April 4 — H-Town Roundup

Celebrate innovation, entrepreneurship and collaboration at Houston Exponential's sixth-annual H-Town Roundup. During the free event series, previously known as Houston Tech Rodeo, attendees can expect insightful talks, workshops and networking events at venues across the city.

This event begins Monday, March 30. Register here.

Intuitive Machines secures $175M equity investment to fuel growth

space funding

Houston-based space infrastructure and services company Intuitive Machines has secured a $175 million equity investment from unidentified institutional investors. The investors received shares of Class A stock in exchange for their funding.

Publicly held Intuitive Machines (Nasdaq: LUNR) says it plans to use the capital to help build revenue and invest in technology, including communications and data-processing networks.

“We are building a scalable infrastructure platform from low-Earth orbit to the moon and into deep space,” Intuitive Machines CEO Steve Altemus said in a news release. “With this investment, we can accelerate the integration of the combined company’s collective capabilities to deliver next-generation data, communications, and space-based infrastructure services.”

Intuitive Machines says the $175 million investment will improve its ability to secure deals for satellite systems, the proposed Golden Dome missile defense system and the proposed Mars telecommunications orbiter.

As the company pursues those deals, it’s seeking partners to develop space-based data centers.

The $175 million equity stake comes on the heels of Intuitive Machines completing its $800 million cash-and-stock purchase of Lanteris Space Systems. Intuitive Machines bought the satellite manufacturer from private equity firm Advent International.

In the third quarter, which ended Sept. 30, Intuitive Machines posted a $10 million net loss on revenue of $52.4 million.