Company lists · Data refreshed September 2026
Top 25 Early-stage investment firms based in Houston, United States
RevenueBase identified 86 early-stage investment firms headquartered in Houston, United States as of September 2026 and tracks 378 professional contacts across them, including 90 with verified work emails. New York is the largest hub.
This list covers early-stage investment firms headquartered in Houston, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest early-stage investment firms based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 53 contacts → | ||||
Strong evidence “Mercury fund is an early-stage venture capital firm investing in disruptive AI and blockchain startups outside Silicon Valley.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 36 contacts → | ||||
Indirect evidence “The Houston Angel Network (HAN) is the oldest angel network in Texas and one of the most active angel networks in the USA.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 26 contacts → | ||||
Partial evidence “Founded in 2006, Platform Partners LLC is a Houston-based private investment firm that partners with founders and executives of companies with enterprise values typically between…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 16 contacts → | ||||
Strong evidence “New Climate Ventures (NCV) is an early-stage venture capital firm investing in the future of how we produce, power, and consume.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 contacts → | ||||
Strong evidence “Devland is a early stage fund investing in new frontier innovation and market disrupting business models.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 9 contacts → | ||||
Indirect evidence “UnicGate is a full-spectrum business incubator and accelerator dedicated to driving innovation and entrepreneurship within Science, Technology, Engineering, and Mathematics (STEM).” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 9 contacts → | ||||
Indirect evidence “Helping startups design, build, launch, iterate, and grow.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 8 contacts → | ||||
Partial evidence “Tupper Lake Partners is a Venture Capital and Investment Management firm formed in 2020 comprised of former energy & technology CEOs that bring their experience (and personal…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 7 contacts → | ||||
Partial evidence “GOOSE Capital is a Houston based investment group comprised of highly successful operators and investors.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Indirect evidence “Small Ventures USA, LP (SMV) is a venture capital and private equity firm founded by William O.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 5 contacts → | ||||
Indirect evidence “A Houston-based and founder-led venture studio providing strategy, operational support, relationships, and capital to build impactful companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Strong evidence “Seed Round Capital | Early-Stage Funding & Fundraising Advisory for Deep Tech Startups We help pre-seed and seed-stage founders in deep tech, hard science, applied materials, and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Indirect evidence “Our journey from operations and engineering to VC.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 4 contacts → | ||||
Partial evidence “We're a minority-owned - Houston, Texas based investment group, established in 2019, investing in passionate entrepreneurs, strong management teams and innovative businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Indirect evidence “Carnrite Ventures is a venture capital firm that invests in technology companies across the United States.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Indirect evidence “At Mitchell Companies, we invest in companies we believe in.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “Colton Capital Partners, LLC is a family owned investment company based in Houston that invests in small and middle market private companies across a variety of industries.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Partial evidence “Pre-seed Investments” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “Saltgrass Ventures is a founder-friendly private equity group combining investment with consulting expertise.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 contacts → | ||||
Indirect evidence “Morpheus helps entrepreneurs and companies develop innovative ideas and grow market share and profits, by providing business expertise, industry connections, go-to-market…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “Crosstimbers Capital Group is a Houston-based principal investment firm, focused on providing growth equity to entrepreneur-owned companies.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 contacts → | ||||
Indirect evidence “SolverX helps industrial enterprises address their operational pain points by transforming stranded, high-value university-based IP into usable solutions through a startup…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Indirect evidence “Sweat Equity Partners is an entrepreneur-led organization focused on technology-enabled solutions in CleanTech, PropTech and SaaS.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Mission Vertical Capital invests up to $10 million in carefully vetted Seed, but more frequently, Series-A capital rounds.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: early-stage investment firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names early-stage investment firms.
- Partial evidence
- Its own public description names part of early-stage investment firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name early-stage investment firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 86 early-stage investment firms based in Houston, United States
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Early-stage investment firms based in Houston, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 86 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among early-stage investment firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Houston, United States whose own description of what they do matches “early-stage investment firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names early-stage investment firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among early-stage investment firms, and records with no verified work email. Companies headquartered outside Houston are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 90 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Early-stage investment firms by metro in the United States
- Early-stage investment firms in New York677
- Early-stage investment firms in San Francisco579
- Early-stage investment firms in Los Angeles187
- Early-stage investment firms in Palo Alto182
- Early-stage investment firms in Boston165
- Early-stage investment firms in Chicago151
- Early-stage investment firms in Austin141
- Early-stage investment firms in Miami106
- Early-stage investment firms in Menlo Park100
- Early-stage investment firms in Dallas91
- Early-stage investment firms in Houston86
- Early-stage investment firms in Atlanta73
- Early-stage investment firms in Washington65
- Early-stage investment firms in Seattle60
- Early-stage investment firms in Denver57
- Early-stage investment firms in New York City55
- Early-stage investment firms in Cambridge52
- Early-stage investment firms in San Diego52
- Early-stage investment firms in Santa Monica42
- Early-stage investment firms in Philadelphia40
- Early-stage investment firms in San Jose33
- Early-stage investment firms in Salt Lake City31
- Early-stage investment firms in San Mateo31
- Early-stage investment firms in Boulder28
- Early-stage investment firms in Columbus26
- Early-stage investment firms in Mountain View26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names early-stage investment firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many early-stage investment firms are there based in Houston, United States?
RevenueBase identified 86 early-stage investment firms headquartered in Houston, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Mercury Fund, headquartered in Houston, tops this list with the largest team on record.
Which city has the most early-stage investment firms?
New York leads with 677 headquartered companies, followed by San Francisco (579) and Los Angeles (187).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 90 verified decision-maker contacts tracked across these 86 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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