Company lists · Data refreshed September 2026

Top 25 Venture backed startups based in the United States

Name: Venture backed startups based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 5,832 companies tracked

RevenueBase identified 5,832 venture backed startups headquartered in the United States as of September 2026 and tracks 68,443 professional contacts across them, including 20,455 with verified work emails. New York is the largest hub.

This list covers venture backed startups headquartered in the 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 22, 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 22, 2026 86% judged on-target in blind review

5,832Companies

68,443Contacts tracked

20,455Verified emails

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The 25 largest venture backed startups based in the United States

Ranked by team size

Top 25 of 5,832 venture backed startups based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to venture backed startups: 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	Y Combinator	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	3,283 contacts →
	Partial evidence “Y Combinator is the leading startup accelerator for entrepreneurs.” Source: RevenueBase Database · checked Sep 22, 2026
2	Techstars	Partial evidence	New York City, NY, United StatesHQ checked Sep 22, 2026	n/a	1,803 contacts →
	Partial evidence “Techstars helps founders scale their startups into world-changing businesses.” Source: RevenueBase Database · checked Sep 22, 2026
3	ACCEL	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 22, 2026	n/a	981 contacts →
	Partial evidence “Accel is a global venture capital firm that is the first partner to exceptional teams everywhere, from inception through all phases of private company growth.” Source: RevenueBase Database · checked Sep 22, 2026
4	Andreessen Horowitz	Strong evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	201-500	932 contacts →
	Strong evidence “Founded in 2009 by Marc Andreessen and Ben Horowitz, Andreessen Horowitz (known as "a16z") is a venture capital firm that backs bold entrepreneurs building the future through…” Source: RevenueBase Database · checked Sep 22, 2026
5	Hustle Fund	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	711 contacts →
	Partial evidence “Hustle Fund is a venture capital firm investing in hilariously-early pre-seed founders.” Source: RevenueBase Database · checked Sep 22, 2026
6	Lvlup Ventures	Strong evidence	New York, NY, United StatesHQ checked Sep 22, 2026	1,001-5,000	610 contacts →
	Strong evidence “LvlUp Ventures is a global venture capital firm investing in and accelerating early-stage & late-stage startups.” Source: RevenueBase Database · checked Sep 22, 2026
7	Primary Venture Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	545 contacts →
	Indirect evidence “Primary is the world's largest early stage VC firm, with a billion in assets under management and 50 full time employees.” Source: RevenueBase Database · checked Sep 22, 2026
8	Alumni Ventures	Partial evidence	Manchester, NH, United StatesHQ checked Sep 22, 2026	51-200	411 contacts →
	Partial evidence “Founded in 2014, we’re America’s largest venture firm for individual investors and VC investing partner to over individuals and institutions.” Source: RevenueBase Database · checked Sep 22, 2026
9	Bessemer Venture Partners	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	201-500	402 contacts →
	Partial evidence “Bessemer Venture Partners helps entrepreneurs lay strong foundations from inception to build long-standing companies.” Source: RevenueBase Database · checked Sep 22, 2026
10	Sequoia Capital	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	51-200	388 contacts →
	Indirect evidence “Sequoia helps daring founders build legendary companies from idea to IPO and beyond.” Source: RevenueBase Database · checked Sep 22, 2026
11	Stage 2 Capital	Partial evidence	United StatesHQ checked Sep 22, 2026	n/a	354 contacts →
	Partial evidence “Stage 2 Capital is a venture capital firm that invests in early stage B2B software companies and sits shoulder to shoulder with leadership teams to operationalize sustainable…” Source: RevenueBase Database · checked Sep 22, 2026
12	Lightspeed	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	51-200	329 contacts →
	Partial evidence “Lightspeed is a global, multi-stage, venture capital firm managing over $40B in assets.” Source: RevenueBase Database · checked Sep 22, 2026
13	Alchemist Accelerator	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	321 contacts →
	Strong evidence “The Alchemist Accelerator is a venture-backed initiative focused on accelerating the development of seed-stage ventures that monetize from enterprises (not consumers).” Source: RevenueBase Database · checked Sep 22, 2026
14	York IE	Partial evidence	Manchester, NH, United StatesHQ checked Sep 22, 2026	201-500	292 contacts →
	Partial evidence “York IE® is an investment and operating firm that combines a family of funds with a hands-on operating platform to build and back software companies.” Source: RevenueBase Database · checked Sep 22, 2026
15	NEW Enterprise Associates NEA	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	51-200	277 contacts →
	Partial evidence “New Enterprise Associates, Inc.(NEA) is a global venture capital firm focused on helping entrepreneurs build transformational businesses across multiple stages, sectors and…” Source: RevenueBase Database · checked Sep 22, 2026
16	GV Google Ventures	Indirect evidence	San Francisco Bay, MA, United StatesHQ checked Sep 22, 2026	51-200	276 contacts →
	Indirect evidence “GV supports innovative founders across multiple stages and sectors, from artificial intelligence and life sciences to consumer platforms, enterprise software, and frontier…” Source: RevenueBase Database · checked Sep 22, 2026
17	Tiger Global	Indirect evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	275 contacts →
	Indirect evidence “Tiger Global is a research-driven investment firm pursuing a long-term approach to partnering with high-quality, innovative companies across different stages of their lifecycle.” Source: RevenueBase Database · checked Sep 22, 2026
18	RA Capital Management	Indirect evidence	Boston, MA, United StatesHQ checked Sep 22, 2026	201-500	251 contacts →
	Indirect evidence “Founded in 2004, RA Capital Management is an active, multi-stage investment manager dedicated to evidence-based, science-led investing in public and private healthcare, life…” Source: RevenueBase Database · checked Sep 22, 2026
19	Nextgen Venture Partners	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	247 contacts →
	Partial evidence “NextGen Venture Partners works with over 1,800 Venture Partners to invest $1 million in seed stage companies and $2 million to $10 million in companies with more than $10 million…” Source: RevenueBase Database · checked Sep 22, 2026
20	Golden Seeds	Indirect evidence	New York, United StatesHQ checked Sep 22, 2026	n/a	230 contacts →
	Indirect evidence “Golden Seeds is an investment firm dedicated to pursuing market returns through the empowerment of women entrepreneurs and the people who invest in them.” Source: RevenueBase Database · checked Sep 22, 2026
21	NEO	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 22, 2026	n/a	221 contacts →
	Partial evidence “Neo is a diverse mentorship community, startup accelerator, and VC fund.” Source: RevenueBase Database · checked Sep 22, 2026
22	Redesign Health	Partial evidence	New York, NY, United StatesHQ checked Sep 22, 2026	51-200	217 contacts →
	Partial evidence “Redesign Health is a global venture and applied technology firm focused on building next-generation healthcare companies.” Source: RevenueBase Database · checked Sep 22, 2026
23	Highland Capital Partners	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 22, 2026	n/a	213 contacts →
	Partial evidence “Founded in 1987, Highland Capital Partners is a venture capital firm focused on putting the entrepreneur first.” Source: RevenueBase Database · checked Sep 22, 2026
24	Norwest	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 22, 2026	51-200	212 contacts →
	Partial evidence “Norwest is a leading venture and growth equity investment firm that works side-by-side with the world’s top entrepreneurs, empowering them throughout their personal journey of…” Source: RevenueBase Database · checked Sep 22, 2026
25	Battery Ventures	Indirect evidence	Boston, MA, United StatesHQ checked Sep 22, 2026	51-200	211 contacts →
	Indirect evidence “Battery invests in potentially cutting-edge, category-defining businesses in markets including application software, IT infrastructure technologies, consumer-internet and mobile…” Source: RevenueBase Database · checked Sep 22, 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 backed startups. 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 backed startups.
Partial evidence: Its own public description names part of venture backed startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name venture backed startups. 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 5,832 venture backed startups based in the United States

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Venture backed startups based in the United States at a glance

As of Sep 22, 2026

29.9%Verified-email coverage

11.7Average contacts per company

1-10Median size (employees)

13.5%Largest-city concentration · New York

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

4,430

11-50

1,166

51-200

178

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 5,832 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 backed startups, 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 the United States whose own description of what they do matches “venture backed startups”. 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 backed startups), 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 backed startups, and records with no verified work email. Companies headquartered outside United States 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, 20,455 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 22, 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 backed startups by metro

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 backed startups, 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 backed startups are there based in the United States?

RevenueBase identified 5,832 venture backed startups headquartered in the 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?

Y Combinator, headquartered in San Francisco, tops this list with the largest team on record.

Which city has the most venture backed startups?

New York leads with 786 headquartered companies, followed by San Francisco (670) and Los Angeles (227).

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 20,455 verified decision-maker contacts tracked across these 5,832 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 22, 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.