Two climatetech startups are joining a new program from Greentown Labs and Browning the Green Space. Photo via greentownlabs.com

A new accelerator focused on BIPOC-led energy tech startups named its inaugural cohort, and two Houston-based companies made the cut.

The new program — Advancing Climatetech and Clean Energy Leaders Program, or ACCEL — is an initiative led by Greentown Labs and Browning the Green Space that was originally announced in November. The program was established to provide access to funding, networking connections, resources, and more to BIPOC-led startups working on a climatetech solution.

The program is supported by the Massachusetts Clean Energy Center, or MassCEC, a state economic development agency, and the Boston-based Barr Foundation, a Boston-based foundation. Each of the selected startups will receive a $25,000 grant, incubation at Greentown, mentorship from Greentown and BGS’s networks, and access to a curriculum curated by VentureWell, a nonprofit with deep expertise in the climatetech space.

“We are thrilled and eager to support this exceptional cohort of startup leaders as they tackle some of our world’s biggest climate challenges,” says Kevin T. Taylor, CFO and interim CEO at Greentown Labs, in a news release. “Through partnerships with Browning the Green Space and VentureWell—and with the support from MassCEC and the Barr Foundation—we look forward to offering intentional mentorship, training, and networking opportunities to help these BIPOC-led startups thrive.”

The co-located program will host startups at each of the two Greentown Labs locations in the Houston and Boston areas. The inaugural cohort includes:

  • Active Surfaces, based in Salem, Massachusetts, unlocks dual land-use applications through its ultra-thin-film, flexible solar technology. Its co-founders are Shivam Bhakta and Richard Swartwout.
  • Houston-based DrinKicks is a sneaker-themed consumer-products company that is focused on repurposing food waste and recycled materials into sustainable goods such as shoes, sports equipment, and clothing, all while educating consumers on the power of the circular economy. The company was co-founded by Kristeen Reynolds, Michael Fletcher, and Kristen Lee.
  • EarthBond, headquartered in Cambridge, Massachusetts, leverages group financing and carbon accounting to lower costs and risk in the energy transition of Nigeria's $14B fuel-based, off-grid generator market. Chidalu Onyenso founded the business.
  • Amherst, Massachusetts-based florrent is a bio-based materials and energy storage company providing solutions to address critical bottlenecks to the global decarbonization and electrification of utilities, transportation, and buildings. Its co-founders are Jose LaSalle, Joe Hastry, and Alexander Nichols. florrent is a current Greentown member.
  • frakktal, founded in Houston by Jhana Porter, is a B2B materials company developing bio-based polymer processes for the replacement of fossil-fuel-based feedstocks across industries. The company is a current Greentown member.
  • SpadXTech from Worcester, Massachusetts, is contributing to the reduction of CO2 emissions impacting several industries such as packaging, textiles, transportation, filtration, and construction through the manufacturing of its core and versatile material platform technology. Its co-founders are Lina M. González and Connor Crawford.

“We are inspired by and excited to support the wealth of innovation and fresh perspectives on climate solutions offered by our inaugural ACCEL cohort of startup leaders,” said Kerry Bowie, executive director and president of Browning the Green Space. “Through this partnership with Greentown Labs we are able to build critical support infrastructure for entrepreneurs of color and accelerate the equitable development and distribution of climate solutions across all communities.”

The program will officially kick off at an event on February 23 at Greentown’s Boston location.

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Venus Aerospace picks up investment from Lockheed Martin Ventures

space funding

Venus Aerospace, a Houston-based startup specializing in next-generation rocket engine propulsion, has received funding from Lockheed Martin Ventures, the investment arm of aerospace and defense contractor Lockheed Martin, for an undisclosed amount. The product lineup at Lockheed Martin includes rockets.

The investment follows Venus’ successful high-thrust test flight of its rotating detonation rocket engine (RDRE) in May. Venus says it’s the only company in the world that makes a flight-proven, high-thrust RDRE with a “clear path to scaled production.”

Venus says the Lockheed Martin Ventures investment reflects the potential of Venus’ dual-use technology for defense and commercial uses.

“Venus has proven in flight the most efficient rocket engine technology in history,” Venus co-founder and CEO Sassie Duggleby, a board member of the Texas Space Commission, said in a news release. “With support from Lockheed Martin Ventures, we will advance our capabilities to deliver at scale and deploy the engine that will power the next 50 years of defense, space, and commercial high-speed aviation.”

Chris Moran, executive director and general manager of Lockheed Martin Ventures, said Lockheed Martin has been a longtime supporter of early-stage “transformational” technologies.

“Our investment in Venus Aerospace reflects a conviction that next-generation propulsion will define which nations lead in space and defense for decades to come,” Moran added in the release. “We are committed to helping Venus scale this technology and integrate it into critical systems.”

Since its founding in 2020, Venus has secured more than $106 million in funding. In addition to Lockheed Martin Ventures, investors include Airbus Ventures, America’s Frontier Fund, Trousdale Ventures, and Prime Movers Lab. Supporters of Venus include NASA, the Air Force Research Lab and the Defense Advanced Research Projects Agency (DARPA).

8+ can't-miss Houston business and innovation events for November

where to be

Editor's note: Houston’s innovation calendar is packed this November, with opportunities to connect across climatetech, health care and entrepreneurship. From Greentown Labs’ flagship summit and veteran-led showcases to discussions on medical innovation and startup growth, here's what not to miss and how to register. Please note: this article may be updated to include additional event listings.

Nov. 4 – Greentown Climatetech Summit

Greentown Labs' Climatetech Summit Houston will bring together philanthropists, executives and innovators in the energy transition space. Expect to hear from John Arnold, co-founder and co-chair of Arnold Ventures, and Greentown CEO Georgina Campbell Flatter, who will participate in the day-long event’s keynote fireside chat, along with remarks from Houston Mayor John Whitmire, a course led by TEX-E Executive Director Sandy Guitar and more. Ten Greentown Labs startups will present pitches, and attendees will also be able to meet founders and Greentown members during the afternoon startup showcase.

This event is Tuesday, Nov. 4, from 8 a.m.-4:30 p.m. at Greentown Labs. A networking reception follows from 5-7:30 p.m. at Axelrad Houston. Learn more here.

Nov. 11 – Veterans & Visionaries

Houston Veteran Network will celebrate the entrepreneurial spirit of veterans at its Veterans & Visionaries event. Veteran business owners will have the opportunity to showcase their businesses, connect with investors and participate in speed networking.

This event is Tuesday, Nov. 11, from 2-7 p.m. at the Ion. Find more information here.

Nov. 12 – Energy Drone and Robotics Forum

The Energy Drone + Robotics Coalition will offer a chance for industry leaders, operators and engineers to connect. Attendees will explore real-world uses, hear lessons from successful deployments, and gain practical insights and tools for scaling through various workshops, keynote addresses, Q&As and more.

This event is Wednesday, Nov. 12, from 8 a.m.-5:30 p.m. at the Ion. A Bots & Brews / Industrial AI Connect Reception will be held at Second Daught from 5:30-7:30 p.m. Find more information here.

Nov. 12 – TMC Envision 2025: Showcasing Healthcare Innovation

Celebrate 10 years of TMC Innovation at Envision, which shines a light on how TMC’s health tech companies are shaping the future. The event will feature talks from TMC’s Devin Dunn, Jason Sakamoto and Tom Luby that will focus on hospital innovation, health care policies, Texas-specific funding and regulatory dynamics and more.

This event is Wednesday, Nov. 12, from 3:30-6:30 p.m. at TMC Innovation Factory. Find more information here.

Nov. 13 — 2025 Houston Innovation Awards

Join InnovationMap at Greentown Labs on Nov. 13 for the fifth annual Houston Innovation Awards. Our annual celebration of all things Houston innovation offers an exclusive opportunity to network with leaders in the innovation ecosystem and culminates in the awards ceremony, where this year's winners across 10 prestigious categories will be unveiled. Individual tickets and corporate 10-packs with reserved seating are still available.

This event is Thursday, Nov. 13 at 7 p.m. at Greentown Labs. Get your tickets here.

Nov. 13 – Houston Methodist Leadership Speaker series

Head to the Houston Methodist Tech Hub at Ion to hear the latest installment of the Houston Methodist Leadership Speaker Series. The month’s event will feature Dr. Shlomit Schaal, executive vice president and chief physician executive at Houston Methodist. She is also the president and CEO of the Houston Methodist Physician Organization. Schaal will focus on physician group innovation.

This event is Thursday, Nov. 13, from 4:45-6 p.m. at the Ion. Find more information here.

Nov. 18 – Rice Customer-based Strategy Symposium

Rice University’s Jones Graduate School of Business will present this recurring forum for exchanging innovative ideas on customer-centered strategy planning and execution. The symposium features peer-reviewed research from leading academics with industry trends and insights from executives. Hear from Jones School Dean Peter Rodriguez, Harris County Sheriff Ed Gonzalez, Laura Lopez, SVP of marketing, communications and public relations at Houston Methodist; Farid Virani, CEO of Prime Communications; and several Rice MBA graduates and executives.

This event is Tuesday, Nov. 18, 2025, from 7:30 a.m.-3:00 p.m. at the Ion. Learn more here.

Nov. 20 – Houston Startup Speedrun

Wade Pinder, founder of Product Houston, will host the Houston Startup Speedrun. This intensive and fast-paced program is designed to provide early-stage founders and aspiring entrepreneurs with a comprehensive understanding of the “Startup Founder's Journey” and the Houston startup ecosystem. The event is broken up into 10 consecutive 50-minute sessions, including topics such as “Creating a Compelling Business Plan,” “Operations and Scaling” and others.

This event is Thursday, Nov. 20, from 9 a.m.-7 p.m. at the Ion. Find more information here.

Nov. 20 – State of the Texas Medical Center

The Greater Houston Partnership will present the State of the Texas Medical Center. Hear from William F. McKeon, president and CEO of TMC, and GHP president and CEO Steve Kean as they discuss “the tremendous progress happening in health care delivery and life sciences in the world’s largest medical center.”

This event is Thursday, Nov. 20, from 4-6:30 p.m. at Helix Park. Find more information here.