Company lists · Data refreshed September 2026

Top 25 Venture capital portfolio companies based in Houston, United States

Name: Venture capital portfolio companies based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 68 companies tracked

RevenueBase identified 68 venture capital portfolio companies headquartered in Houston, United States as of September 2026 and tracks 265 professional contacts across them, including 66 with verified work emails. New York is the largest hub.

This list covers venture capital portfolio companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 14, 2026 86% judged on-target in blind review

68Companies

265Contacts tracked

66Verified emails

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The 25 largest venture capital portfolio companies based in Houston, United States

Ranked by team size

Top 25 of 68 venture capital portfolio companies based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to venture capital portfolio companies: 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	Houston Angel Network	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 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 14, 2026
2	NEW Climate Ventures NCV	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	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, 2026
3	Summit Capital Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	10 contacts →
	Partial 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 14, 2026
4	Berk Labs	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	9 contacts →
	Indirect evidence “Helping startups design, build, launch, iterate, and grow.” Source: RevenueBase Database · checked Sep 14, 2026
5	Vc5 Partners	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 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 14, 2026
6	Tupper Lake Partners	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	8 contacts →
	Strong 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, 2026
7	Goose Capital	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	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, 2026
8	Helium Capital	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 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 14, 2026
9	Small Ventures USA LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	6 contacts →
	Strong evidence “Small Ventures USA, LP (SMV) is a venture capital and private equity firm founded by William O.” Source: RevenueBase Database · checked Sep 14, 2026
10	HX Venture Fund	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 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 14, 2026
11	The J	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	11-50	5 contacts →
	Strong 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, 2026
12	Seed Round Capital	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Partial 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, 2026
13	Ventioneers	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Indirect evidence “Our journey from operations and engineering to VC.” Source: RevenueBase Database · checked Sep 14, 2026
14	The Maroon Alliance	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Indirect 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, 2026
15	BA Interests LLC	Indirect evidence	Houston, United StatesHQ checked Sep 14, 2026	51-200	3 contacts →
	Indirect evidence “BA Interests, LLC, operates businesses in multiple industries.” Source: RevenueBase Database · checked Sep 14, 2026
16	Carnrite Ventures	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Strong evidence “Carnrite Ventures is a venture capital firm that invests in technology companies across the United States.” Source: RevenueBase Database · checked Sep 14, 2026
17	Mitchell Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “At Mitchell Companies, we invest in companies we believe in.” Source: RevenueBase Database · checked Sep 14, 2026
18	Blancap	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “Pre-seed Investments” Source: RevenueBase Database · checked Sep 14, 2026
19	Park Partners Capital, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “Park Partners provides expertise across a variety of industries and invests capital through all business stages.” Source: RevenueBase Database · checked Sep 14, 2026
20	Morpheus LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	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, 2026
21	Mission Vertical Capital	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial 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, 2026
22	Sweat Equity Partners, LP	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	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, 2026
23	Leadology	Strong evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	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 14, 2026
24	TEN X Labs LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Indirect evidence “Ten X Labs is an Angel and pre-Seed fund that differentiates itself by creating deep, trusting bonds with first-time Founders before they’re even ready for investment.” Source: RevenueBase Database · checked Sep 14, 2026
25	369gp	Partial evidence	Houston, TX, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Partial evidence “369 Growth Partners (369GP) is a global venture firm backing founders who build with purpose and precision.” Source: RevenueBase Database · checked Sep 14, 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: venture capital portfolio companies. 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 venture capital portfolio companies.
Partial evidence: Its own public description names part of venture capital portfolio companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name venture capital portfolio companies. 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 68 venture capital portfolio companies based in Houston, United States

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Venture capital portfolio companies based in Houston, United States at a glance

As of Sep 14, 2026

24.9%Verified-email coverage

3.9Average contacts per company

1-10Median size (employees)

776.5%Largest-city concentration · New York

Sep 14, 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 68 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 venture capital portfolio companies, 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 “venture capital portfolio companies”. 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 venture capital portfolio companies), 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 venture capital portfolio companies, 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, 66 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.

Venture capital portfolio companies 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 venture capital portfolio companies, 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 venture capital portfolio companies are there based in Houston, United States?

RevenueBase identified 68 venture capital portfolio companies 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 venture capital portfolio companies?

New York leads with 528 headquartered companies, followed by San Francisco (490) and Palo Alto (155).

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 66 verified decision-maker contacts tracked across these 68 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.