Company lists · Data refreshed September 2026
Top 25 Early-stage venture firms based in Houston, United States
RevenueBase identified 77 early-stage venture firms headquartered in Houston, United States as of September 2026 and tracks 356 professional contacts across them, including 78 with verified work emails. New York is the largest hub.
This list covers early-stage venture 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 19, 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 venture 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 19, 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 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 13 contacts → | ||||
Partial evidence “Innovest Afrika is a Venture Platform accelerating African innovation and entrepreneurship by connecting founders of African descent with capital, mentorship, and global markets.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 10 contacts → | ||||
Indirect evidence “Summit Capital Group is a Houston-based Real Estate Investment Firm partnering with accredited investors and entrepreneurs to build long-term financial strength.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 9 contacts → | ||||
Partial evidence “Modi Ventures is a private fund investing at the intersection of technology and biology/medicine.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 9 contacts → | ||||
Indirect evidence “Bryce Catalyst is a unique investment company with a focus on high growth sectors in Cyber Security, Legal Technology, and Regulation Technology.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 7 contacts → | ||||
Strong evidence “Ecosphere Ventures is a Houston-based Pre-Seed through late-Seed stage fund focused on investing in transformative climatetech and sustainability solutions in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 7 contacts → | ||||
Indirect evidence “GOOSE Capital is a Houston based investment group comprised of highly successful operators and investors.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Partial evidence “Small Ventures USA, LP (SMV) is a venture capital and private equity firm founded by William O.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Partial evidence “HX Venture Fund is a venture capital fund of funds that creates a multiplier effect by linking the transformational power of world-class corporations, technology innovation, and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Partial 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 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “Our journey from operations and engineering to VC.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Partial evidence “Carnrite Ventures is a venture capital firm that invests in technology companies across the United States.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Indirect evidence “At Mitchell Companies, we invest in companies we believe in.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Partial evidence “Madhatter Coalition is a Venture Studio headquartered in Houston,TX and Atlanta, GA.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “Pre-seed Investments” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 contacts → | ||||
Partial evidence “Fueling Innovation & Inclusion for a Sustainable Future At Dream Big Ventures, we believe it's never too late to chase your dreams.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 19, 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 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Strong evidence “Leadology, a venture capital firm specializing in seed funding, mid-stage investments, and business turnaround consulting.” Source: RevenueBase Database · checked Sep 19, 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 venture 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 venture firms.
- Partial evidence
- Its own public description names part of early-stage venture 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 venture 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 77 early-stage venture firms based in Houston, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 78 reachable decision-makers.
Free signup · no credit card
Early-stage venture firms based in Houston, United States at a glance
As of Sep 19, 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 77 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 venture 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 venture 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 venture 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 venture 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, 78 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 19, 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 venture firms by metro in the United States
- Early-stage venture firms in New York719
- Early-stage venture firms in San Francisco693
- Early-stage venture firms in Los Angeles230
- Early-stage venture firms in Palo Alto211
- Early-stage venture firms in Boston178
- Early-stage venture firms in Chicago164
- Early-stage venture firms in Austin131
- Early-stage venture firms in Menlo Park124
- Early-stage venture firms in Miami114
- Early-stage venture firms in Atlanta80
- Early-stage venture firms in Dallas80
- Early-stage venture firms in Houston77
- Early-stage venture firms in New York City76
- Early-stage venture firms in Washington71
- Early-stage venture firms in Seattle69
- Early-stage venture firms in Denver60
- Early-stage venture firms in Cambridge58
- Early-stage venture firms in San Diego54
- Early-stage venture firms in Santa Monica46
- Early-stage venture firms in San Jose41
- Early-stage venture firms in Philadelphia39
- Early-stage venture firms in San Mateo34
- Early-stage venture firms in Mountain View29
- Early-stage venture firms in Salt Lake City29
- Early-stage venture firms in Wilmington29
- Early-stage venture firms in Minneapolis27
- Early-stage venture firms in Boulder26
- Early-stage venture firms in Irvine26
- Early-stage venture firms in Tampa26
- Early-stage venture firms in Los Altos25
- Early-stage venture firms in Santa Clara25
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 venture 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 venture firms are there based in Houston, United States?
RevenueBase identified 77 early-stage venture 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 venture firms?
New York leads with 719 headquartered companies, followed by San Francisco (693) and Los Angeles (230).
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 78 verified decision-maker contacts tracked across these 77 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 77 early-stage venture firms based in Houston, United States. Start with a free account, no credit card.
Download this list →Related lists
Early-stage venture firms by geography
- Early-stage venture firms based in Calgary, Canada
- Early-stage venture firms based in Montreal, Canada
- Early-stage venture firms based in Toronto, Canada
- Early-stage venture firms based in Vancouver, Canada
- Early-stage venture firms based in Berlin, Germany
- Early-stage venture firms based in Hamburg, Germany
- Early-stage venture firms based in Munich, Germany
- Early-stage venture firms based in Bangalore, India
- Early-stage venture firms based in Bengaluru, India
- Early-stage venture firms based in Chennai, India
- Early-stage venture firms based in Gurgaon, India
- Early-stage venture firms based in Gurugram, India
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Early-stage venture firms based in Calgary, Canada
- Early-stage venture firms based in Montreal, Canada
- Early-stage venture firms based in Toronto, Canada
- Early-stage venture firms based in Vancouver, Canada
- Early-stage venture firms based in Berlin, Germany
- Early-stage venture firms based in Hamburg, Germany