Company lists · Data refreshed September 2026

Top 25 Innovation focused venture firms based in Houston, United States

Name: Innovation focused venture 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 20, 2026 89 companies tracked

RevenueBase identified 89 innovation focused venture firms headquartered in Houston, United States as of September 2026 and tracks 441 professional contacts across them, including 118 with verified work emails. New York is the largest hub.

This list covers innovation focused 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

89Companies

441Contacts tracked

118Verified emails

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The 25 largest innovation focused venture firms based in Houston, United States

Ranked by team size

Top 25 of 89 innovation focused venture firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to innovation focused venture firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Growthaxl	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Partial evidence “GrowthAXL is a startup studio with a focus on incubating product ideas designed to create a lasting impact.” Source: RevenueBase Database · checked Sep 20, 2026
2	Mercury Fund	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	53 contacts →
	Partial 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 20, 2026
3	Houston Angel Network	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	n/a	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 20, 2026
4	NEW Climate Ventures NCV	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	16 contacts →
	Partial 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 20, 2026
5	Summit Capital Group	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	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 20, 2026
6	Bryce Catalyst	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial 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 20, 2026
7	Unicgate	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial 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 20, 2026
8	Vc5 Partners	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	501-1,000	8 contacts →
	Indirect evidence “VC5 Partners is a holding company that invests in, manages, and provides support for entrepreneurs with a vision.” Source: RevenueBase Database · checked Sep 20, 2026
9	Venture Builder VC	Strong evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	8 contacts →
	Strong evidence “Venture Builder fast-tracks innovation by connecting bold solutions directly with industry giants.” Source: RevenueBase Database · checked Sep 20, 2026
10	Tupper Lake Partners	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	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 20, 2026
11	Ecosphere Ventures	Strong evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	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 20, 2026
12	Goose Capital	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “GOOSE Capital is a Houston based investment group comprised of highly successful operators and investors.” Source: RevenueBase Database · checked Sep 20, 2026
13	Helium Capital	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “We are an investment and advisory firm that supports the development and growth of businesses across the entire lifecycle of entrepreneurship.” Source: RevenueBase Database · checked Sep 20, 2026
14	Small Ventures USA LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	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 20, 2026
15	HX Venture Fund	Strong evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Strong 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 20, 2026
16	The J	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	11-50	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 20, 2026
17	Seed Round Capital	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Indirect 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 20, 2026
18	Texas Ventures	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Texas Ventures is a private equity and venture capital firm with expertise in structured finance, capital markets and technology.” Source: RevenueBase Database · checked Sep 20, 2026
19	Ventioneers	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Our journey from operations and engineering to VC.” Source: RevenueBase Database · checked Sep 20, 2026
20	The Maroon Alliance	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	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 20, 2026
21	Carnrite Ventures	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	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 20, 2026
22	Mitchell Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “At Mitchell Companies, we invest in companies we believe in.” Source: RevenueBase Database · checked Sep 20, 2026
23	Madhatter Coalition	Partial evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “Madhatter Coalition is a Venture Studio headquartered in Houston,TX and Atlanta, GA.” Source: RevenueBase Database · checked Sep 20, 2026
24	Blancap	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Pre-seed Investments” Source: RevenueBase Database · checked Sep 20, 2026
25	Park Partners Capital, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Park Partners provides expertise across a variety of industries and invests capital through all business stages.” Source: RevenueBase Database · checked Sep 20, 2026

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: innovation focused 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 innovation focused venture firms.
Partial evidence: Its own public description names part of innovation focused venture firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name innovation focused 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 89 innovation focused venture firms based in Houston, United States

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Innovation focused venture firms based in Houston, United States at a glance

As of Sep 20, 2026

26.8%Verified-email coverage

5.0Average contacts per company

1-10Median size (employees)

911.2%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

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 89 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 innovation focused 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 “innovation focused 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 innovation focused 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 innovation focused 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, 118 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 20, 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.

Innovation focused venture firms by metro in the United States

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 innovation focused 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 innovation focused venture firms are there based in Houston, United States?

RevenueBase identified 89 innovation focused 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?

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

Which city has the most innovation focused venture firms?

New York leads with 811 headquartered companies, followed by San Francisco (753) and Los Angeles (253).

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 118 verified decision-maker contacts tracked across these 89 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 20, 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.