Houston startup taps strategic partner to produce novel 'biobased leather'

cleaner products

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.

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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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Houston femtech co. debuts first holistic wellness suite following rebrand

work perks

Houston-based femtech company Work&, previously Work&Mother, debuted new lactation suites and its first employee wellness space at MetroNational’s Memorial City Plazas this month.

The 1,457-square-foot Work& space features three lactation rooms and five wellness suites, the latter of which are intended to offer employees a private space and time for telehealth appointments, meditation, prayer, and other needs. The hybrid space, designed by Houston-based Inventure, represents Work&'s shift to offer an array of holistic health and wellness solutions to landlords for tenants.

Work& rebranded from Work&Mother earlier this year. The company was previously focused on outfitting commercial buildings with lactation accommodations for working parents, equipped with a hospital-grade pump, milk storage bags, sanitizing wipes, and other supplies. While Work& will still offer these services through its Work&Mother branch, the addition of its Work&Wellbeing arm allows the company to also "address the broader wellness needs of all employees," according to an announcement made on LinkedIn.

"We are thrilled to bring Work&Mother and Work&Wellbeing to The Plazas," Jules Lairson, co-founder and COO of Work&, said in a news release. “This partnership brings every stakeholder together – employees, employers and landlords all benefit from this kind of forward-thinking tenant experience. We are excited to launch our Work&Wellbeing concept with MetroNational to ensure that all employees have their wellness needs met with private, clean, quiet spaces for use during the workday.”

The new space is available to all tenants across Memorial City Plazas, comprised of three office towers totaling 1 million square feet of Class A office space. In addition to the lactation and wellness suites, the space also features custom banquettes, private lounge seating and phone booths.

“As a family-owned and operated company, MetroNational is deeply committed to fostering a workplace that supports both productivity and the well-being of all our tenants,” Anne Marie Ratliff, vice president of asset management for MetroNational, added in the release. “Partnering with Work& reinforces this commitment, enhancing our workplace experience and setting a new standard for tenant amenities.”

Work& has five Houston locations and several others in major metros, including New York, Austin, D.C., Boston, Chicago, San Francisco, and Miami. According to its website, the company will also introduce a Work&Wellbeing suite in New York.

Abbey Donnell spoke with InnovationMap on the Houston Innovators Podcast about why she founded the company and its plans for growth in 2021. Click here to learn more.

9 Houston universities make U.S. News' list of best grad schools 2025

Top of the class

Nine Houston universities have climbed through the ranks in U.S. News & World Report’s recently released report of the best graduate schools nationwide for 2025. Several graduate programs also appeared among the top 10 in a Texas-wide comparison.

U.S. News published its annual national "Best Graduate Schools" rankings on April 8. They look at several programs including business, education, engineering, fine arts, health, and many others.

For the 2025 report, the publication added new Ph.D. social sciences and humanities program rankings in English, history, political science and sociology for the first time since 2021. U.S. News also ranked graduate economics and psychology programs in the social sciences and the humanities for the first time since 2022.

Among the newcomers are Houston Christian University and Texas Southern University.

Here's how the nine local schools ranked, statewide and nationally, and how they compared with last year's national ranking:

University of Houston

  • No. 4 best graduate engineering school in Texas; No. 72 nationally
  • No. 5 best graduate education school in Texas; No. 81 nationally (down from No. 63 last year)
  • No. 5 best law school in Texas; No. 63 nationally (up from No. 68)

The University of Houston Law Center has the No. 9 best health law program in the nation, and ranked No. 15 for its legal writing program. The university's part-time MBA program ranked No. 38 nationally

University of Houston, Clear Lake

  • No. 12 best graduate education school in Texas; No. 166 nationally

The Clear Lake branch of the University of Houston tied for No. 166 for its part-time MBA program.

Houston Christian University

  • No. 21 best graduate education school in Texas; tied for No. 234-258 nationally

University of Texas Health Science Center

  • No. 1 best Doctor of Nursing Practice program in Texas; No. 33 nationally (up from No. 45)
  • No. 2 best graduate nursing program in Texas; No. 41 nationally (down from No. 31)

Prairie View A&M University, Northwest Houston Center

  • No. 5 best graduate nursing program in Texas; No. 104 nationally (up from No. 117)
  • No. 7 best Doctor of Nursing Practice program in Texas; tied for No. 143-158 nationally

Rice University

  • No. 2 best graduate business school in Texas; No. 29 nationally (unchanged)
  • No. 3 best graduate engineering school in Texas; No. 26 nationally

Rice's entrepreneurship program is the 9th best in the country, and its part-time MBA program ranked 13th nationally. The George R. Brown School of Engineering earned nods for its No. 10-ranking biomedical engineering and environmental engineering programs.

University of Texas Medical Branch, Galveston

  • No. 5 best Doctor of Nursing Practice program in Texas; No. 76 nationally

South Texas College of Law Houston

  • No. 7 best law school in Texas; No. 138 nationally

Out of the 11 law programs ranked by U.S. News, the South Texas College of Law performed the best for its trial advocacy (No. 12), dispute resolution law (No. 23), and legal writing (No. 51) programs.

Texas Southern University

  • No. 10 best law school in Texas; tied for No. 178-195 nationally

More specifically, TSU has the 64th best trial advocacy law program in the nation, U.S. News said.

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

VC firm partners with Rice Nexus to open first global office

strategic partnership

Luxembourg-based venture capital and advisory firm MoreThan Capital (MTC) has established its first global office at the new Rice Nexus in Houston’s Ion District as part of a strategic partnership aimed at fostering entrepreneurship and growing Houston as an innovation hub.

MTC has committed to offering its “time, mentorship, industry expertise and global connections” to Rice Nexus. The state-of-the-art Rice Nexus, which opened earlier this year, aims to support and provide resources for ventures that are looking to scale and have "artificial intelligence (AI) as a central pillar of its innovation strategy," according to a statement from Rice.

“The Rice Nexus is a launchpad for world-changing ideas, and this partnership with MoreThan Capital is a key step in realizing that vision,” Sanjoy Paul, executive director of the Rice Nexus, said in a news release. “By combining Rice’s research and entrepreneurial talent with MTC’s global network and mentorship, we are creating an unparalleled engine for innovation that starts in Houston and reaches the world.”

MoreThan Capital has over 100 limited partners, including senior executives and professional investors, based in more than 35 countries.

“Establishing our first global office at the Rice Nexus within the Ion District is a significant milestone for MoreThan Capital,” Guillermo Ruiz, general partner of MoreThan Capital, said in a news release. “We are dedicated to partnering with top-tier academic institutions like Rice University and aligning with organizations that share our core values of trust, engagement and impact.”

The announcement comes just a few weeks after Rice Nexus announced its partnership with Google Public Sector to launch the new Rice AI Venture Accelerator, or RAVA.

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