Company lists · Data refreshed September 2026

Top 25 Clinical stage venture capital companies based in the United States

Name: Clinical stage venture capital companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 2,559 companies tracked

RevenueBase identified 2,559 clinical stage venture capital companies headquartered in the United States as of September 2026 and tracks 34,009 professional contacts across them, including 12,552 with verified work emails. New York is the largest hub.

This list covers clinical stage venture capital companies 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 27, 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 27, 2026 86% judged on-target in blind review

2,559Companies

34,009Contacts tracked

12,552Verified emails

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The 25 largest clinical stage venture capital companies based in the United States

Ranked by team size

Top 25 of 2,559 clinical stage venture capital companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clinical stage venture capital 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	ACCEL	Strong evidence	Palo Alto, CA, United StatesHQ checked Sep 27, 2026	n/a	981 contacts →
	Strong 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 27, 2026
2	Andreessen Horowitz	Strong evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 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 27, 2026
3	Flagship Pioneering	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 27, 2026	501-1,000	753 contacts →
	Indirect evidence “Flagship Pioneering is a biotechnology company that invents and builds platform companies, each with the potential for multiple transformative human health and sustainability…” Source: RevenueBase Database · checked Sep 27, 2026
4	Lvlup Ventures	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
5	Primary Venture Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	51-200	545 contacts →
	Partial 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 27, 2026
6	Bessemer Venture Partners	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 27, 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 27, 2026
7	Sequoia Capital	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 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 27, 2026
8	NEW Enterprise Associates NEA	Strong evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	51-200	277 contacts →
	Strong 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 27, 2026
9	GV Google Ventures	Partial evidence	San Francisco Bay, MA, United StatesHQ checked Sep 27, 2026	51-200	276 contacts →
	Partial 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 27, 2026
10	Tiger Global	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 2026	51-200	275 contacts →
	Partial 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 27, 2026
11	RA Capital Management	Strong evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	201-500	251 contacts →
	Strong 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 27, 2026
12	Nextgen Venture Partners	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	n/a	247 contacts →
	Strong 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 27, 2026
13	Takeda Ventures, INC	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 27, 2026	10001+	232 contacts →
	Partial evidence “Takeda Ventures, Inc.(TVI) is the corporate investment arm of Takeda Pharmaceutical Company Limited (TPC).” Source: RevenueBase Database · checked Sep 27, 2026
14	Redesign Health	Partial evidence	New York, NY, United StatesHQ checked Sep 27, 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 27, 2026
15	Highland Capital Partners	Strong evidence	Cambridge, MA, United StatesHQ checked Sep 27, 2026	n/a	213 contacts →
	Strong evidence “Founded in 1987, Highland Capital Partners is a venture capital firm focused on putting the entrepreneur first.” Source: RevenueBase Database · checked Sep 27, 2026
16	Norwest	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 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 27, 2026
17	Battery Ventures	Indirect evidence	Boston, MA, United StatesHQ checked Sep 27, 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 27, 2026
18	Kleiner Perkins	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	n/a	205 contacts →
	Indirect evidence “For five decades, Kleiner Perkins has partnered with intrepid founders to build iconic companies that made history.” Source: RevenueBase Database · checked Sep 27, 2026
19	DFJ	Strong evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	51-200	205 contacts →
	Strong evidence “DFJ is a venture capital firm that partners with extraordinary entrepreneurs who are changing the world.” Source: RevenueBase Database · checked Sep 27, 2026
20	First Round Capital	Strong evidence	San Francisco, PA, United StatesHQ checked Sep 27, 2026	n/a	199 contacts →
	Strong evidence “First Round is a venture capital firm that works with founders exclusively at the earliest stages of company building, often when all they have is an “imagine if.” We fill in…” Source: RevenueBase Database · checked Sep 27, 2026
21	Deerfield Management	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	51-200	196 contacts →
	Indirect evidence “Launched in 1994, Deerfield Management Company is an investment firm dedicated to advancing healthcare through investment, intelligence, and philanthropy.” Source: RevenueBase Database · checked Sep 27, 2026
22	Khosla Ventures	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 27, 2026	51-200	193 contacts →
	Partial evidence “Khosla Ventures invests in companies that are bold, early and impactful.” Source: RevenueBase Database · checked Sep 27, 2026
23	FF Venture Capital	Strong evidence	New York, United StatesHQ checked Sep 27, 2026	n/a	169 contacts →
	Strong evidence “ff Venture Capital (ffVC) is focused on investing in early-stage technology and technology-enabled companies, and has been since 2008.” Source: RevenueBase Database · checked Sep 27, 2026
24	Headline	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	51-200	166 contacts →
	Strong evidence “Headline is a venture capital firm with teams on the ground in 8 cities around the world.” Source: RevenueBase Database · checked Sep 27, 2026
25	Hercules Capital	Strong evidence	San Mateo, CA, United StatesHQ checked Sep 27, 2026	51-200	165 contacts →
	Strong evidence “Hercules Capital, Inc.(NYSE: HTGC) is the leading and largest specialty finance company focused on providing senior secured venture growth loans to high-growth, innovative venture…” Source: RevenueBase Database · checked Sep 27, 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: clinical stage venture capital 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 clinical stage venture capital companies.
Partial evidence: Its own public description names part of clinical stage venture capital companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical stage venture capital 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 2,559 clinical stage venture capital companies based in the United States

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Clinical stage venture capital companies based in the United States at a glance

As of Sep 27, 2026

36.9%Verified-email coverage

13.3Average contacts per company

1-10Median size (employees)

13.8%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

1,897

11-50

554

51-200

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 2,559 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 clinical stage venture capital 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 the United States whose own description of what they do matches “clinical stage venture capital 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 clinical stage venture capital 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 clinical stage venture capital companies, 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, 12,552 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 27, 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.

Clinical stage venture capital companies 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 clinical stage venture capital 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 clinical stage venture capital companies are there based in the United States?

RevenueBase identified 2,559 clinical stage venture capital companies 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?

ACCEL, headquartered in Palo Alto, tops this list with the largest team on record.

Which city has the most clinical stage venture capital companies?

New York leads with 354 headquartered companies, followed by San Francisco (262) and Boston (116).

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 12,552 verified decision-maker contacts tracked across these 2,559 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 27, 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.