Rheom Materials announced a strategic partnership with Bixby International for the commercial-scale production of its novel biobased material, Shorai. Photo via Rheom

A Houston-based next-gen material startup has revealed a new strategic partnership.

Rheom Materials, formerly known as Bucha Bio, has announced a strategic partnership with thermoplastic extrusion and lamination company Bixby International, which is part of Rheom Material’s goal for commercial-scale production of its novel biobased material, Shorai.

Shorai is a biobased leather alternative that meets criteria for many companies wanting to incorporate sustainable materials. Shorai performs like traditional leather, but offers scalable production at a competitive price point. Extruded as a continuous sheet and having more than 92 percent biobased content, Shorai achieves an 80 percent reduction in carbon footprint compared to synthetic leather, according to Rheom.

Rheom, which is backed by Houston-based New Climate Ventures, will be allowing Bixby International to take a minority ownership stake in Rheom Materials as part of the deal.

“Partnering with Bixby International enables us to harness their extensive expertise in the extrusion industry and its entire supply chain, facilitating the successful scale-up of Shorai production,” Carolina Amin Ferril, CTO at Rheom Materials, says in a news release. “Their highly competitive and adaptable capabilities will allow us to offer more solutions and exceed our customers’ expectations.”

In late 2024, Rheom Materials started its first pilot-scale trial at the Bixby International facilities with the goal of producing Shorai for prototype samples.

"The scope of what we were doing — both on what raw materials we were using and what we were creating just kept expanding and growing," founder Zimri Hinshaw previously told InnovationMap.

Listen to Hinshaw on the Houston Innovators Podcast episode recorded in October.

Zimri T. Hinshaw, founder and CEO of Rheom Materials, joins the Houston Innovators Podcast. Photo courtesy of Rheom

Houston bio-based materials founder rebrands, evolves future-focused sustainability startup

HOUSTON INNOVATORS PODCAST EPISODE 255

At first, Zimri T. Hinshaw just wanted to design a sustainable, vegan jacket inspired by bikers he saw in Tokyo. Now, he's running a bio-based materials company with two product lines and is ready to disrupt the fashion and automotive industries.

Hinshaw founded Rheom Materials (née Bucha Bio) in 2020, but a lot has changed since then. He moved the company from New York to Houston, built out a facility in Houston's East End Maker Hub, and rebranded to reflect the company's newest phase and extended product lines, deriving from dozens of different ingredients, including algae, seaweed, corn, other fruits and vegetables, and more.

"As a company, we pivoted our technology from growing kombucha sheets to grinding up bacteria nanocellulose from kombucha into our products and then we moved away from that entirely," Hinshaw says on the Houston Innovators Podcast. "Today, we're designing different materials that are more sustainable, and the inputs are varied."

Now, in addition to Rheom's leather-like alternative, Shorai, the company has a plastic-like material, Benree, that's 100 percent bio based.

"The scope of what we were doing — both on what raw materials we were using and what we were creating just kept expanding and growing," Hinshaw says.

With that major evolution past just kombucha-based textiles, it was time for a new name, ideated by the company's technical team. "Rheom" is the combination of "rheology" — the study of how polymers flow — and "form."

Rheom has also built a state-of-the-art chemicals testing lab at its new facility after moving into it early last year.

"We've got a ton of capabilities now — and we've been growing those since the beginning," Hinshaw says. "Now we have all this testing equipment — things that pull materials apart, things that test the flexibility of materials."

Next up, Rheom, which is backed by Houston-based New Climate Ventures, among other VCs, will raise a series A funding round to continue supporting its growth.

If you feel like it's hard to find venture capitalists in Houston, you wouldn't be wrong, according to this Houston investor. Photo via Getty Images

Houston investor outlines how rare VCs are in Houston — and how to find them

guest column

As a venture capitalist and former startup founder living in Houston, I get asked a lot about the best way to find and connect with a venture capitalist in Houston. My usual advice is to start with a list, and reach out to everyone on that list. But no one has a comprehensive list. In fact, VCs are such a quiet bunch that I’ve yet to meet someone who personally knows everyone on this proverbial list.

So, I got together with a couple of VC friends of mine, and we put together our own Houston venture capitalist list.

There are, by our count, 11 active venture capital funds headquartered in Houston of any size and type, and outside of corporate venture capital and angel investors, there are 30 total venture capitalists running funds.

Houston has always been quite thin on the VC fund front. I’ve jokingly introduced myself for a while as “one of the 13 venture capitalists in Houston.”

Let’s put this scale in some brutal perspective. With 7.2 million people in the Greater Houston Metro Area, the odds of finding a partner level active venture capitalist in Houston is about 1 in 240,000, if you take a most expanded definition of venture capitalist that might come down to 1 in 100,000. We’re the fifth largest metropolitan area in the country with a tremendous economic engine; there is a ton of capital in Houston, but it’s residing in things like institutional fixed income and equities, real estate, wealth management, corporate, private equity, family office, energy and infrastructure Basically, mostly everywhere but in venture capital funds for tech startups.

By comparison, there are almost as many Fortune 500 CEOs in Houston — 24, by our count — as venture capitalists and fewer venture capitalists than Fortune 1000 CEOs, of which there are 43. That means running into a VC in the checkout line at HEB is about as rare as running into the CEO of CenterPoint, ConocoPhillips, or Academy. In fact, as there are 115 cities in the Greater Houston area, you are three times more likely to be a mayor in Greater Houston Area than a partner at an investor at a VC firm, and more likely to be a college or university president. While we’re at it, you’re 400 times more likely to be a lawyer, 250 times more likely to be a CPA, and over 650 times more likely to be a medical doctor.

Our 30 venture capitalists in the Greater Houston Area are spread across 20 firms and all major venture sectors and stages. Venture capitalist is defined for this list as a full time managing director or partner-level investment professional actively running a venture capital fund with limited partners, currently investing in new venture capital deals from their fund from seed to growth stage, and residing in the Greater Houston Metro area.

To get to 31 we added in a couple of people running venture set asides for PE funds, and a number who work from Houston for funds with no office here. We excluded CVCs, as the decision making is more corporate than individual and rarely includes the committed fund and carried interest structure that defines venture capital, and excluded professionals at angel networks, accelerators, and seed funds that provide investment, but don’t manage conventional venture capital funds, as well as PE funds that do the occasional venture deal. We might be able to triple the number if we include venture capitalists at any professional level, and add in those professionals at PE and angel and seed funds, and corporate venture capital teams who are actively investing. But we’ll get to those other sources of funding in the next list.

The 11 venture capital funds headquartered in Houston are: Mercury, Energy Transition Ventures (my fund), Montrose Lane (formerly called Cottonwood), Texas Medical Center Venture Fund, Artemis, New Climate Ventures, Fitz Gate Ventures, Curate Capital, Knightsgate Ventures, Amplo Ventures,and First Bight Ventures.

Another half a dozen firms have a partner level venture capital investor here, but are headquartered elsewhere: Energy Innovation Capital, Decarbonization Partners, 1984 Ventures, Altitude Ventures, Ascension Ventures, Moneta Ventures, and MKB & Co. Two others, CSL Ventures and SCF Partners, are local private equity funds with a venture capital partner in Houston and a dedicated allocation from a PE fund.

Culling these for partner or managing director level currently in Houston, in alphabetical order by first name, LinkedIn profile and all.

We may have missed a couple of VCs hiding in plain sight, as venture capital is a pretty dynamic business.

VCs are just rare. And yes, perhaps more rare in Houston than in California. Something less than 1 in 100 VCs in the country live in Houston. Across the US there are somewhere around 1,000 to 2,000 active venture capital firms, and maybe another 1,000 to 2,000 active US based CVCs — so, plus or minus maybe at most 4,000 to 5,000 currently active partner level venture capitalists in the country excluding CVC professionals (active VCs and VC funds are really hard to count).

Perhaps in the most stunning statistic, the 7,386 elected state legislators in the US today outnumber the total number of American venture capitalists. Luckily for startup founders, the venture capitalists are more likely to return your phone call.

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Neal Dikeman is a venture capitalist and seven-time startup co-founder investing out of Energy Transition Ventures. He’s currently hosting the Venture Capital for First Time Founders Series at the Ion, where ETV is headquartered.

BUCHA BIO has raised over $1 million to grow its team, build a new headquarters, and accelerate its go-to-market strategy. Image courtesy of BUCHA BIO

Houston-based biomaterials company raises $1.1M to grow team, build new HQ

money moves

A Houston company that has created a plant-based material that can replace unsustainable conventional leathers and plastics has announced the close of its oversubscribed seed funding round.

BUCHA BIO announced it's raised $1.1 million in seed funding. The round included participation from existing partners New Climate Ventures, Lifely VC, and Beni VC, as well as from new partners Prithvi VC, Asymmetry VC, and investors from the Glasswall Syndicate, including Alwyn Capital, as well as Chris Zarou, CEO & Founder of Visionary Music Group and manager of multi-platinum Grammy-nominated rapper, Logic, the startup reports in a news release.

“I’m excited to back BUCHA BIO’s amazing early market traction," Zarou says in the release. "Their next-gen bio-based materials are game-changing, and their goals align with my personal vision for a more sustainable future within the entertainment industry and beyond.”

The company, which relocated its headquarters from New York to Houston in February, was founded by Zimri T. Hinshaw in 2020 and is based out of the East End Makers Hub and Greentown Houston.

BUCHA BIO has created two bio-based materials using bacterial nanocellulose and other plant-based components. The two materials are SHORAI, which can be used as a leather alternative, and HIKARI, a translucent material that is expected to be formally introduced in November.

The fresh funding will help the company to accelerate its move into the marketplace next year by securing co-manufacturers to scale production. Additionally, the company is growing its team and is hiring for a new supply chain lead as well as some technician roles.

Per the release, BUCHA BIO is working on constructing a new headquarters in Houston that will house a materials development laboratory, prototype manufacturing line, and offices.

BUCHA BIO has the potential to impact several industries from fashion and automotive to construction and electronics. According to the Material Innovation Initiative, the alternative materials industry has seen an increased level of interest from investors who have dedicated over $2 billion into the sector since 2015.

“The time for rapid growth for biomaterials is now," says repeat investor Eric Rubenstein, founding managing partner at Houston-based New Climate Ventures, in the release. "BUCHA BIO's team and technical development are advancing hand in hand with the demands of brand partnerships, and we are excited to support them as they capitalize on this global opportunity.”

This week's roundup of Houston innovators includes Eric Rubenstein of New Climate Ventures, Susan Davenport of Greater Houston Partnership, and Zimri T. Hinshaw of Bucha Bio. Courtesy photos

3 Houston innovators to know this week

who's who

Editor's note: In this week's roundup of Houston innovators to know, I'm introducing you to three local innovators across industries — from venture capital to sustainability — recently making headlines in Houston innovation.


Eric Rubenstein, founding managing partner of New Climate Ventures

Eric Rubenstein of New Climate Ventures joins the Houston Innovators Podcast to discuss the future of Houston as a clean energy hub. Photo courtesy of NCV

Houston has a big role to play in the energy transition, says Eric Rubenstein, a climatetech investor, on last week's episode of the Houston Innovators Podcast.

"Houston's role (within the energy transition) is multifaceted," he explains. "We have a talent pool here that fits pretty well in climate tech, alternative materials, and other spaces. ...We have a customer base here that is going to adopt these new technologies."

Rubenstein founded New Climate Ventures to fund startups within the sustainability and climate tech space — which includes technologies that address circular economy, sustainably made materials, clean energy, and more. Click here to read more and stream the episode.

Susan Davenport, chief economic development officer for the Greater Houston Partnership

The Greater Houston Partnership's Susan Davenport shares details on Houston House at SXSW. Photo via houston.org

Last year, the Greater Houston Partnership created virtual content to shine a spotlight on Houston tech and innovation at SXSW. This year, the GHP is taking that same initiative in-person and in Austin. Susan Davenport, chief economic development officer at GHP, shared in a Q&A what people can expect fro Houston House at SXSW.

"Anyone who is interested in technology, commercial aerospace, life sciences, and how DEI traverses with these industries will find value in our rockstar lineup of industry leaders, investors, and startup founders," she says. "We hope to see young professionals, entrepreneurs, investors, and executives."

The activation runs Sunday, March 13, and Monday, March 14. Click here to read more.

Zimri T. Hinshaw, CEO of Bucha Bio

Bucha Bio has arrived to make an impact on the city of Houston. Image via LinkedIn

A sustainable fashion company has relocated to Houston. Bucha Bio, founded in 2019, creates in textiles and composite materials made from bacterial nanocellulose, a much more sustainable materials production, that can be used instead of animal leather, polyurethane, latex, vinyl, epoxy, and more. The company announced in a press release today that it's moving from New York City and opening a next-gen materials headquarters at the East End Maker Hub. Bucha Bio has also been accepted as a member company at Greentown Labs.

According to the release, over 20 locations were considered, and Houston stood out for its hiring potential, local universities, Texas's business-friendly regulation, and more.

“We’ve signed on senior scientists and their experiences from the oil and plastic industry are perfectly suited to biomaterials,” says Zimri T. Hinshaw, CEO of Bucha Bio, in the release. Click here to read more.

Eric Rubenstein of New Climate Ventures joins the Houston Innovators Podcast to discuss the future of Houston as a clean energy hub. Photo courtesy of NCV

Climate tech investor says Houston has a multifaceted role to play in the energy transition

houston innovators podcast episode 122

If the city of Houston wants to maintain its moniker of Energy Capital of the World, it has make strides within the energy transition — and that needs to be accomplished in a myriad of ways.

"Houston's role (within the energy transition) is multifaceted," says Eric Rubenstein, founding managing partner of New Climate Ventures, on this week's episode of the Houston Innovators Podcast.

Rubenstein founded New Climate Ventures to fund startups within the sustainability and climate tech space — which includes technologies that address circular economy, sustainably made materials, clean energy, and more.

"We have a talent pool here that fits pretty well in climate tech, alternative materials, and other spaces," he continues. "We have a customer base here that is going to adopt these new technologies."

The fact that Houston's major energy companies — of which there are many in town — will be the customers of emerging clean energy technologies positions the city as a hub for attracting innovative startups. Just last week, Bucha Bio, one of NCV's portfolio companies expanded into Houston. The New-York founded startup creates in textiles and composite materials made from bacterial nanocellulose, a much more sustainable materials production, that can be used instead of animal leather, polyurethane, latex, vinyl, epoxy, and more.

Rubenstein says Bucha Bio narrowed down its options to San Diego and Houston, before ultimately deciding on the Bayou City for its talent pool. The company, which is a member of Greentown Houston, is now based out of the East End Maker Hub.

"As these technologies are being spun out of labs, Houston has become a destination for these companies," Rubenstein says. "Bucha Bio isn't an irregular occurrence these days."

The missing piece of the puzzle is still venture dollars — and Rubenstein is on a mission to move that needle. This year, NCV is focused on closing its fund and deploying capital into early-staged climate tech companies.

"Our goal is really to watch for transformational change in the industries we're investing in," he says. "We're really excited about the technologies in the space and will continue looking for what's to come."

Rubenstein shares more about New Climate Ventures and the trend that is impact investing on the podcast. Listen to the full interview below — or wherever you stream your podcasts — and subscribe for weekly episodes.


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New report shows surge in startup activity in Houston and across Texas

by the numbers

Houston and the rest of Texas are experiencing a boom in the creation of startups.

One barometer of growth in startup activity: The Houston metro area saw a 92 percent rise from 2024 to 2025 in the number of account applications submitted to Bluevine, a banking platform for small businesses.

New data from Bluevine also shows healthy year-over-year growth in account applications submitted by entrepreneurs in Texas’ three other major metros:

  • 242 percent growth in the San Antonio area
  • 153 percent growth in the Austin area
  • 28 percent growth in Dallas-Fort Worth

Further evidence of Texas’ uptick in business creation comes from a new state-by-state analysis of U.S. Census Bureau data by digital mailbox provider iPostal1.

From 2019 to 2024, the number of new business applications jumped 60 percent in Texas, according to the iPostal1 analysis. Wyoming tops the list, with a five-year growth rate of 216 percent.

“The U.S. has no shortage of ambition, but opportunity isn’t spread evenly,” says Jeff Milgram, founder and CEO of iPostal1. “In states like New York, Florida, and Texas, entrepreneurship is booming — people are starting businesses, taking risks, and finding opportunity.”

“Other states are still catching up,” Milgram adds. “Sometimes it’s access to funding, sometimes local policy, or just the confidence that new ventures will be supported.”

Women own many of the new businesses sprouting in Texas, according to a new analysis of 2024-25 data from the U.S. Small Business Administration. The analysis, done by SimpleTiger, a marketing agency for software-as-a-service (SaaS), shows Texas ranks eighth for the highest concentration of women entrepreneurs (109 per 1,000 female residents) among all states. That rate is three percent higher than the national average.

“Women entrepreneurs are no longer a side story in small business growth; they’re a leading indicator of where local economies are expanding next,” SimplyTiger says. “When women-owned business density is high, it usually signals stronger access to customers, networks, and startup pathways that make it easier to launch and keep going.”

In a December news release, Gov. Greg Abbott highlights Texas’ nation-leading job gains over the past 12 months, driven by employers small and large.

“From innovative startups to Fortune 500 corporations, job-creating businesses invest with confidence in Texas,” Abbott says. “With our strong and growing workforce, we will continue to expand career and technical training programs for better jobs and bigger paycheck opportunities for more Texans.”

Houston poised to add 30,900 new jobs in 2026, forecast says

jobs forecast

Buoyed by the growing health care sector, the Houston metro area will add 30,900 jobs in 2026, according to a new forecast from the Greater Houston Partnership.

The report predicts the Houston area’s health care sector will tack on 14,000 jobs next year, which would make it the No. 1 industry for local job growth. The 14,000 health care jobs would represent 45 percent of the projected 30,900 new jobs. In the job-creation column, the health care industry is followed by:

  • Construction: addition of 6,100 jobs in 2026
  • Public education: Addition of 5,800 jobs
  • Public administration: Addition of 5,000 jobs

At the opposite end of the regional workforce, the administrative support services sector is expected to lose 7,500 jobs in 2026, preceded by:

  • Manufacturing: Loss of 3,400 jobs
  • Oil-and-gas extraction: Loss of 3,200 jobs
  • Retail: Loss of 1,800 jobs

“While current employment growth has moderated, the outlook remains robust and Houston’s broader economic foundation remains strong,” GHP president and CEO Steve Kean said in the report.

“Global companies are choosing to invest in Houston — Eli Lilly, Foxconn, Inventec, and others — because they believe in our workforce and our long-term trajectory,” Kean added. “These commitments reinforce that Houston is a place where companies can scale and where our economy continues to demonstrate its resilience as a major engine for growth and opportunity. These commitments and current prospects we are working on give us confidence in the future growth of our economy.”

The Greater Houston Partnership says that while the 30,900-job forecast falls short of the region’s recent average of roughly 50,000 new jobs per year, it’s “broadly in line with the muted national outlook” for employment gains anticipated in 2026.

“Even so, Houston’s young, skilled workforce and strong pipeline of major new projects should help offset energy sector pressures and keep regional growth on pace with the nation,” the report adds.

The report says that even though the health care sector faces rising insurance costs, which might cause some people to delay or skip medical appointments, and federal changes in Medicare and Medicaid, strong demographic trends in the region will ensure health care remains “a key pillar of Houston’s economy.”

As for the local oil-and-gas extraction industry, the report says fluctuations and uncertainty in the global oil-and-gas market will weigh on the Houston sector in 2026. Furthermore, oil-and-gas layoffs partly “reflect a longer-term trend as companies in the sector move toward greater efficiency using fewer workers to produce similar volumes,” according to the report.

Construction underway on first-of-its-kind 3D-printed community in Houston

Building a Sustainable Future

Houston is putting itself front-and-center to help make sustainable, affordable housing a reality for 80 homeowners in an innovative scalable housing community. Developer Cole Klein Builders has partnered with HiveASMBLD to pioneer what’s touted as the world’s first large-scale, one-of-a-kind, affordable housing development using 3D printing technology — merging robotics, design, and sustainability.

Located across from Sterling Aviation High School, near Hobby Airport, Zuri Gardens will offer 80 two-bedroom, two-bathroom homes of approximately 1,360 square feet, situated in a park-like setting that includes walking trails and a community green space.

Homes in Zuri Gardens will hit the market in early summer of 2026. Final pricing has yet to be determined, but Cole Klein Builders expects it to be in the mid-to-high 200s.

Interestingly, none of the homes will offer garages or driveways, which the developer says will provide a cost savings of $25,000-$40,000 per home. Instead of parking for individual units, 140 parking spaces will be provided.

Each two-story home is comprised of a ground floor printed by HiveASMBLD, using a proprietary low-carbon cement alternative by Eco Material Technologies that promises to enhance strength and reduce CO2 emissions. The hybrid homes will have a second floor built using engineered wood building products by LP Building Solutions. Overall, the homes are designed to be flood, fire, and possibly even tornado-proof.

The "Zuri" in Zuri Gardens is the Swahili word for “beautiful,” a choice that is fitting considering that the parks department will be introducing a five acre park to the project — with 3D-printed pavilions and benches — plus, a three-acre farm is located right across the street. The Garver Heights area is classified as a food desert, which means that access to fresh food is limited. Residents will have access to the farm’s fresh produce, plus opportunities to participate in gardening and nutrition workshops.

zuri gardens 3d-printed housing community First large-scale affordable housing project of 3D-printed homes rises in Houston Zuri Gardens is getting closer to completion. Courtesy rendering

Cole Klein Builders created Zuri Gardens in partnership with the Houston Housing Community Development Department, who provided infrastructure reimbursements for the roads, sewer lines, and water lines. In return, CKB agreed to push the purchase prices for the homes as low as possible.

Zuri Gardens also received $1.8 million dollars from the Uptown Tourism Bond, 34 percent of which must be used with minority-owned small businesses. Qualified buyers must fit a certain area of median income according to HUD guidelines, and homes must be owner-occupied at all times. Zuri Gardens already has an 800-person waitlist.

“They’re trying to bridge that gap to make sure there is a community for the homebuyers who need it — educators, law enforcement, civil workers, etc.,” Cole Klein Builders’ co-principal Vanessa Cole says. “You have to go through a certification process with the housing department to make sure that your income is in alignment for this community. It has been great, and everyone has been really receptive.”

Cole has also brought insurance underwriters to visit the site and to help drive premiums below regular rates for Houston homeowners, as claim risks for one of the 3D homes are extremely low.

Tim Lankau, principal at HiveASMBLD, notes that the 3D hybrid design allows for a more traditional appearance, while having the benefits of a concrete structure: “That’s where the floodwaters would go, that’s where you can hide when there’s a tornado, and that’s where termites would eat. So you get the advantages of it while having a traditionally-framed second floor.”

It’s important to note that Zuri Gardens is not located in a flood prone area, nor did it flood during Hurricane Harvey — being flood-proof is merely a perk of a cement house. The concrete that Eco Material Technologies developed is impervious. The walls are printed into hollow forms, which house rebar, plumbing, and accessible conduits for things like electrical lines and smart house features. Those walls are then filled with a foamcrete product that expands to form a “monolithic concrete wall.”

David McNitt, of Eco Material Technologies, explains that his proprietary concrete is made of PCV, and contains zero Portland cement. Instead, McNitt’s cement is made from coal ash and is 99 percent green (there are a few chemicals added to the ash). Regardless, it’s made from 100 percent waste products.

“This is a product that has really been landfilled before,” says McNitt. “It’s coal ash, and it’ll set within 8-10 minutes. It’s all monolithic, and one continuous pour — it’s literally all one piece.”

Eco Material Technologies’ concrete product is impressively durable. A traditional cinderblock wall will crush at around 800 psi, while this material crushes at about 8,000 psi.

“It’s ten times stronger than a cinderblock wall that can withstand hurricanes,” claims McNitt. “I don’t think you’d even notice a hurricane. It’ll be really quiet inside, too — so you won’t get interrupted during your hurricane party. It’s way over-engineered, it really is.”

The second story is built using weatherproof and eco-friendly products by LP Building Solutions. Their treated, engineered wood products come with a 50 year warranty, and their radiant barrier roof decking product blocks 97% of UV rays, and keeps attic temperatures 30° cooler than traditional building materials. These materials, combined with the concrete first floor, will keep heating and cooling costs low — something the folks at HiveASMBLD refer to as “thermal mass performance.”

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This article originally appeared on CultureMap.com.