Company lists · Data refreshed September 2026

Top 25 Micro venture capital firms based in Houston, United States

Name: Micro venture capital firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 84 companies tracked

RevenueBase identified 84 micro venture capital firms headquartered in Houston, United States as of September 2026 and tracks 355 professional contacts across them, including 88 with verified work emails. San Francisco is the largest hub.

This list covers micro venture capital 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

84Companies

355Contacts tracked

88Verified emails

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The 25 largest micro venture capital firms based in Houston, United States

Ranked by team size

Top 25 of 84 micro venture capital firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names micro venture capital firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Houston Angel NetworkIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	n/a	36
	“The Houston Angel Network (HAN) is the oldest angel network in Texas and one of the most active angel networks in the USA.” Source: company website · checked Sep 5, 2026
2	FanninIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	23
	“Fannin is an early-stage life sciences development group focused on commercializing innovation developed in the Texas Medical Center institutions.” Source: company website · checked Sep 5, 2026
3	NEW Climate Ventures NCVStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	16
	“New Climate Ventures (NCV) is an early-stage venture capital firm investing in the future of how we produce, power, and consume.” Source: company website · checked Sep 5, 2026
4	Innovest AfrikaStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	13
	“Innovest Afrika is a Venture Platform accelerating African innovation and entrepreneurship by connecting founders of African descent with capital, mentorship, and global markets.” Source: company website · checked Sep 5, 2026
5	Summit Capital GroupPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	10
	“Summit Capital Group is a Houston-based Real Estate Investment Firm partnering with accredited investors and entrepreneurs to build long-term financial strength.” Source: company website · checked Sep 5, 2026
6	UnicgateIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	9
	“UnicGate is a full-spectrum business incubator and accelerator dedicated to driving innovation and entrepreneurship within Science, Technology, Engineering, and Mathematics (STEM).” Source: company website · checked Sep 5, 2026
7	Bryce CatalystIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	9
	“Bryce Catalyst is a unique investment company with a focus on high growth sectors in Cyber Security, Legal Technology, and Regulation Technology.” Source: company website · checked Sep 5, 2026
8	Berk LabsIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	9
	“Helping startups design, build, launch, iterate, and grow.” Source: company website · checked Sep 5, 2026
9	Vc5 PartnersIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	501-1,000	8
	“VC5 Partners is a holding company that invests in, manages, and provides support for entrepreneurs with a vision.” Source: company website · checked Sep 5, 2026
10	Venture Builder VCPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	8
	“Venture Builder fast-tracks innovation by connecting bold solutions directly with industry giants.” Source: company website · checked Sep 5, 2026
11	Tupper Lake PartnersStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	8
	“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: company website · checked Sep 5, 2026
12	Goose CapitalPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	7
	“GOOSE Capital is a Houston based investment group comprised of highly successful operators and investors.” Source: company website · checked Sep 5, 2026
13	Ecosphere VenturesPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	7
	“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: company website · checked Sep 5, 2026
14	Small Ventures USA LLCStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	6
	“Small Ventures USA, LP (SMV) is a venture capital and private equity firm founded by William O.” Source: company website · checked Sep 5, 2026
15	HX Venture FundStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	6
	“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: company website · checked Sep 5, 2026
16	The JStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	11-50	5
	“A Houston-based and founder-led venture studio providing strategy, operational support, relationships, and capital to build impactful companies.” Source: company website · checked Sep 5, 2026
17	Seed Round CapitalPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	5
	“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: company website · checked Sep 5, 2026
18	VentioneersIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	4
	“Our journey from operations and engineering to VC.” Source: company website · checked Sep 5, 2026
19	Fathom FundIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	3
	“Fathom Fund, based in Houston, supports pioneering startups tackling the world’s toughest challenges through the intersection of science, engineering, and innovation.” Source: company website · checked Sep 5, 2026
20	Mitchell CompaniesIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	3
	“At Mitchell Companies, we invest in companies we believe in.” Source: company website · checked Sep 5, 2026
21	Carnrite VenturesStrong evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	3
	“Carnrite Ventures is a venture capital firm that invests in technology companies across the United States.” Source: company website · checked Sep 5, 2026
22	Madhatter CoalitionPartial evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	3
	“Madhatter Coalition is a Venture Studio headquartered in Houston,TX and Atlanta, GA.” Source: company website · checked Sep 5, 2026
23	BlancapIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	3
	“Pre-seed Investments” Source: company website · checked Sep 5, 2026
24	Morpheus LLCIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	2
	“Morpheus helps entrepreneurs and companies develop innovative ideas and grow market share and profits, by providing business expertise, industry connections, go-to-market…” Source: company website · checked Sep 5, 2026
25	Sweat Equity Partners, LPIndirect evidence	Houston, TX, United StatesHQ checked Sep 5, 2026	1-10	2
	“Sweat Equity Partners is an entrepreneur-led organization focused on technology-enabled solutions in CleanTech, PropTech and SaaS.” Source: company website · checked Sep 5, 2026

Showing 25 of 84 micro venture capital firms based in Houston, United States

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Micro venture capital firms based in Houston, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

San FranciscoLargest hub · 654 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 84 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 micro venture capital firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “micro venture capital firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among micro venture capital 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 an evidence 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, 88 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 5, 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.

Micro venture capital firms by metro in the United States

Frequently asked

How many micro venture capital firms are there based in Houston, United States?

RevenueBase identified 84 micro venture capital 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?

Houston Angel Network, headquartered in Houston, tops this list with the largest team on record.

Which city has the most micro venture capital firms?

San Francisco leads with 654 headquartered companies, followed by New York (632) and Los Angeles (208).

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 88 verified decision-maker contacts tracked across these 84 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 5, 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 SmartSearch, 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.