Solugen closed its Series C funding round at $357 million to grow its chemical products. Photo via Getty Images

Houston-based Solugen, a startup that specializes in combating carbon dioxide emitted during the production of chemicals, has hauled in $357 million in a Series C funding round. That amount eclipses the size of any Houston VC funding round this year or last year.

The Series C round lifts Solugen's pre-money valuation to $1.5 billion, according to the Axios news website. This gives Solugen "unicorn" status as a startup with a valuation of at least $1 billion.

Singapore-based GIC and Edinburgh, Scotland-based Baillie Gifford led the round, with participation from Temasek Holdings, affiliates of BlackRock, Carbon Direct Capital Management, Refactor Capital, and Fifty Years.

Since its founding in 2016, Solugen has raised more than $405 million in venture capital, according to Crunchbase.

"Solugen's vision for cleaner chemicals through synthetic biology has the potential to be a fundamental shift in how chemicals are made, to help tackle the environmental challenges we face globally. The chemical market itself is colossal, and Solugen is just getting started," Kirsty Gibson, investment manager at Baillie Gifford, says in a September 9 news release.

Solugen's patented Bioforge processes produce "green" chemicals from bio-based feedstocks. These chemicals are aimed at reducing or eliminating carbon emissions from chemical producers. The Series C funding will help Solugen expand the Bioforge platform and broaden the reach of Solugen's products.

Carbon dioxide from chemical production ranks among the greatest contributors to industrial greenhouse gas emissions.

CNBC explains that Solugen designs and grows enzymes that can turn sugar into chemicals needed to make an array products used in many industrial settings. The company's bio-based chemical offering already includes water treatments, a chemical that makes concrete stronger, another chemical that makes fertilizers more efficient, and detergents that are strong enough to clean a locker room or mild enough to be used for facial wipes, according to CNBC.

"This fundraising round allows us to continue expanding the footprint of our Bioforge technology to give industries the products they need to reduce emissions in their existing supply chains, without compromising on performance or economics," Sean Hunt, co-founder and chief technology officer of Solugen, says in the news release.

Three days before the funding announcement, Solugen made news of a different sort.

Axios reported September 7 that Solugen plans to open a new R&D facility outside Texas because many of the state's social policies — including its abortion restrictions — are making it hard to recruit employees.

Solugen employs about 115 people, most of whom work from its Houston headquarters, Axios says. The startup plans to more than double its R&D capability over the next two years, representing around 100 jobs, with most of those workers expected to be assigned to a new facility that will be set up in California or Massachusetts.

"We want to make sure we're hiring the top enzymologists and chemical engineers," Solugen CEO Gaurab Chakrabarti tells Axios. "We've come to the conclusion after talking to lots of candidates that they want to join Solugen, but they don't feel comfortable coming to Texas, so for us it's become a no-brainer to have R&D facilities elsewhere."

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ExxonMobil sets date to make Texas its legal HQ

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Energy giant Exxon Mobil Corp. has set a date to move its legal headquarters to Texas.

The Spring-based company announced this week that the redomiciliation from New Jersey to Texas is expected to be effective July 1. Exxon's board of directors unanimously recommended redomiciling in the Lone Star State in March, and shareholders approved the move to Texas at the company’s annual meeting in May.

As part of the move, ExxonMobil Holdings Corp. will replace Exxon Mobil Corp. of New Jersey and become the publicly traded parent company. Exxon reports that its shares will continue to trade on the New York Stock Exchange under the ticker symbol “XOM,” and that shareholders do not need to take action.

At the time of the recommendation, Exxon said the move would not affect business operations, management, strategy, assets or employee locations.

Exxon Chairman and CEO Darren Woods added that the redomiciliation was in part due to Texas' business-friendly environment and policies.

"Over the past several years, Texas has made a noticeable effort to embrace the business community. In doing so, it has created a policy and regulatory environment that can allow the company to maximize shareholder value,” Woods said in a news release. "Aligning our legal home with our operating home, in a state that understands our business and has a stake in the company’s success, is important.”

The Associated Press reports that about 30 percent of Exxon's employees work in Texas. Exxon's legal headquarters has been based in New Jersey since 1882, when it was Standard Oil Company.

Exxon moved its operational headquarters from Irving, Texas, to the Houston area in 2023.

Exxon was the highest-ranking Houston-area company on this year's Fortune 500 list, coming in at No. 9. Houston tied with Chicago for the second-most Fortune 500 headquarters on this year's list, with Texas leading the nation for the most Fortune 500 headquarters (57).

“Texas is the undisputed headquarters of headquarters,” Gov. Greg Abbott said in a news release. “The world’s leading businesses invest with confidence in Texas because of our welcoming business climate, predictable regulatory environment, and skilled and growing workforce. People and businesses are choosing Texas because Texas works.”

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

Houston cleantech, space startups named to World Economic Forum cohort

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Two Houston-based startups have been selected to join the World Economic Forum's Technology Pioneers community.

The two-year program aims to help mission-driven, early-stage start-ups scale their innovations through multi-stakeholder initiatives, co-creating partnerships and other gatherings for community members. One-hundred startups are selected each year from around the globe, this year hailing from 23 countries and working in AI, energy, space, biotech markets and more.

Cleantech startup Vaulted Deep was one of 11 energy and climate companies to be named to the cohort. Julia Reichelstein and Omar Abou-Sayed founded the company in 2023. Its technology injects excess organic waste underground to remove carbon dioxide from the atmosphere.

Last year, Vaulted Deep inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

The startup has earned several accolades in recent years, including a No. 3 spot on Fast Company’s list of the World’s Most Innovative Companies of 2026. It was also recently named to market intelligence and advisory firm Cleantech Group's annual Global Cleantech 100 list for a second year in a row.

"Waste management is one of the world's great invisible infrastructure systems ... The need for new infrastructure is growing as disposal challenges become more complex and regulations evolve. Vaulted is building the first new disposal pathway for organic waste in decades by putting it deep underground, permanently," the company shared in a LinkedIn post. "This year, we're joining the World Economic Forum's 2026 Tech Pioneers alongside innovators working on the many interconnected challenges shaping our future."

Houston-based Venus Aerospace was also selected to join the cohort, along with six other spacetech companies. The company was founded in 2020 by Sassie and Andrew Duggleby.

The startup specializes in next-generation rocket engine propulsion as a cleaner alternative to traditional combustion engines. The company's rotating detonation rocket engine (RDRE) burns fuel more efficiently and completed a successful high-thrust test flight last year. 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.”

"Frontier technologies matter most when they expand what people, industries, and nations can do," Sassie Duggleby, co-founder and CEO of Venus, said in a news release. "For Venus, RDRE does not just represent a more efficient engine. It is a foundation for faster movement, more capable space systems, and new forms of connectivity across the planet. Being named a Technology Pioneer validates the potential of this technology to help shape a future where distance is less limiting."

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