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The Full List of 5 Unicorn Startups in Houston (2026)

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Houston is home to five unicorn startups, with companies active in sectors from FinTech to aerospace. FinTech software company HighRadius leads the group with a $3.1 billion valuation.

The city also has a strong focus on energy and manufacturing innovation. Clean energy developer Fervo Energy has attracted nearly $1 billion in funding, while carbon-negative manufacturer Solugen is valued at $2 billion.

Below is the full list of 5 Houston unicorn startups at this time.

Top 5 Most Valuable Houston Unicorns

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HighRadius develops AI-powered software that automates order-to-cash and treasury management. Their SaaS platform is designed for finance teams to improve efficiency and optimize cash flow.

Valuation$3.1B (Joined January 2020)
Year Founded2006
FoundersSashi Narahari
Funding Amount$475M
Company SizeMajor Organization (1,001-5,000)
Last Funding StatusSeries C
Top InvestorsSusquehanna Growth Equity, Tiger Global Management, PNC, Citi Ventures, ICONIQ Growth

Axiom Space builds and operates the world's first commercial space station, designed to be the successor to the International Space Station. Their platform provides access to low-Earth orbit for national astronauts, private individuals, and commercial research.

Valuation$2B (Joined February 2021)
Year Founded2016
FoundersKam Ghaffarian, Michael Suffredini
Funding Amount$500M
Company SizeLarge Team (251-1,000)
Last Funding StatusVenture Round
Top Investors1789 Capital, Sand Hill Angels, Declaration Partners, Alumni Ventures, Bossa Invest

Cart.com builds a unified commerce platform to help brands manage their business from customer discovery all the way to final delivery. Their end-to-end software and services cover everything from online storefronts and marketing to fulfillment and data analytics.

Valuation$2B (Joined June 2023)
Year Founded2020
FoundersEd Sturrock, Jim Jacobsen, Omair Tariq, Remington Tonar
Funding Amount$809.2M
Company SizeMajor Organization (1,001-5,000)
Last Funding StatusSeries C
Top InvestorsTrinity Capital, Gaingels, BlackRock, Oak HC/FT, Titan Capital

Solugen built a carbon negative molecule factory to produce plant-derived substitutes for petroleum-based products. Their Bioforge platform creates high-performance chemicals for industries ranging from agriculture and energy to concrete.

Valuation$2B (Joined September 2021)
Year Founded2016
FoundersGaurab Chakrabarti, Sean Hunt
Funding Amount$855.8M
Company SizeMid-Size Team (51-250)
Last Funding StatusSeries D
Top InvestorsValor Equity Partners, BlackRock, Y Combinator, Temasek Holdings, Lowercarbon Capital

Fervo Energy develops next-generation geothermal projects to deliver 24/7 carbon-free power. They adapt proven technologies like horizontal drilling to make geothermal a more scalable and cost-effective source of clean energy.

Valuation$1.4B
Year Founded2017
FoundersJack Norbeck, Tim Latimer
Funding Amount$991.6M
Company SizeMid-Size Team (51-250)
Last Funding StatusVenture Round
Top InvestorsCapricorn Investment Group, DCVC, Breakthrough Energy Ventures, Elemental Impact, Mercuria

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