Company lists · Data refreshed September 2026

Top 25 Biotech incubators and accelerators based in the United States

Name: Biotech incubators and accelerators based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 1,109 companies tracked

RevenueBase identified 1,109 biotech incubators and accelerators headquartered in the United States as of September 2026 and tracks 18,158 professional contacts across them, including 3,150 with verified work emails. New York is the largest hub.

This list covers biotech incubators and accelerators 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 16, 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 16, 2026 86% judged on-target in blind review

1,109Companies

18,158Contacts tracked

3,150Verified emails

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The 25 largest biotech incubators and accelerators based in the United States

Ranked by team size

Top 25 of 1,109 biotech incubators and accelerators based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to biotech incubators and accelerators: 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 16, 2026	n/a	3,283 contacts →
	Partial evidence “Y Combinator is the leading startup accelerator for entrepreneurs.” Source: RevenueBase Database · checked Sep 16, 2026
2	Techstars	Indirect evidence	New York City, NY, United StatesHQ checked Sep 16, 2026	n/a	1,803 contacts →
	Indirect evidence “Techstars helps founders scale their startups into world-changing businesses.” Source: RevenueBase Database · checked Sep 16, 2026
3	Founder Institute	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 16, 2026	n/a	1,246 contacts →
	Indirect evidence “The Founder Institute is the World’s Largest AI-Native Company Builder, where ambitious professionals, solo founders, and first-time entrepreneurs go to turn ideas into funded…” Source: RevenueBase Database · checked Sep 16, 2026
4	Nucleate	Partial evidence	Boston, United StatesHQ checked Sep 16, 2026	51-200	424 contacts →
	Partial evidence “Nucleate is a free, trainee-led 501(c)(3) non-profit organization dedicated to empowering the next generation of biotech leaders.” Source: RevenueBase Database · checked Sep 16, 2026
5	Alchemist Accelerator	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	n/a	321 contacts →
	Partial 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 16, 2026
6	Activate	Indirect evidence	Berkeley, CA, United StatesHQ checked Sep 16, 2026	n/a	204 contacts →
	Indirect evidence “Activate is a 501(c)(3) nonprofit dedicated to turning scientific discoveries into real-world impact.” Source: RevenueBase Database · checked Sep 16, 2026
7	Gener8tor	Partial evidence	Madison, WI, United StatesHQ checked Sep 16, 2026	51-200	180 contacts →
	Partial evidence “gener8tor fosters innovation ecosystems through its accelerator programs, venture funds, and skills-based workforce initiatives.” Source: RevenueBase Database · checked Sep 16, 2026
8	ATDC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	n/a	179 contacts →
	Partial evidence “The Advanced Technology Development Center (ATDC) is a startup incubator that helps technology entrepreneurs in Georgia launch and build successful companies.” Source: RevenueBase Database · checked Sep 16, 2026
9	LOS Angeles Cleantech Incubator Laci	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	51-200	163 contacts →
	Partial evidence “Los Angeles Cleantech Incubator (LACI) is creating an inclusive green economy for the people of Los Angeles by unlocking innovation by working with startups to accelerate the…” Source: RevenueBase Database · checked Sep 16, 2026
10	Longfellow Real Estate Partners	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	201-500	150 contacts →
	Indirect evidence “Scientific innovation isn’t born in vacuum.” Source: RevenueBase Database · checked Sep 16, 2026
11	Silicon Catalyst	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 16, 2026	11-50	126 contacts →
	Strong evidence “Silicon Catalyst is the only incubator + accelerator focused on the Global Semiconductor Industry including Chips, Chiplets, Materials, IP and Silicon fabrication-based Photonics…” Source: RevenueBase Database · checked Sep 16, 2026
12	Atlas Venture	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	11-50	123 contacts →
	Partial evidence “Atlas Venture is a leading biotech venture capital firm.” Source: RevenueBase Database · checked Sep 16, 2026
13	Labcentral	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	51-200	116 contacts →
	Indirect evidence “LabCentral is Cambridge, MA's premier network of shared laboratory spaces and scientific communities, designed to jumpstart the launch of promising early-stage life-sciences…” Source: RevenueBase Database · checked Sep 16, 2026
14	Entrepreneurs Roundtable Accelerator	Partial evidence	NY, United StatesHQ checked Sep 16, 2026	n/a	114 contacts →
	Partial evidence “Entrepreneurs Roundtable Accelerator (ERA) is New York City’s leading technology accelerator and early-stage venture capital fund.” Source: RevenueBase Database · checked Sep 16, 2026
15	Biolabs	Indirect evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	51-200	110 contacts →
	Indirect evidence “BioLabs are the premier co-working spaces for life science startups- unique places where you can test, develop and grow your game-changing ideas.” Source: RevenueBase Database · checked Sep 16, 2026
16	Techtown Detroit	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 16, 2026	11-50	94 contacts →
	Indirect evidence “We help tech startups and local businesses launch and grow.” Source: RevenueBase Database · checked Sep 16, 2026
17	Medtech Innovator	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 16, 2026	11-50	94 contacts →
	Partial evidence “MedTech Innovator is the largest and most impactful accelerator in the world for medical device, digital health and diagnostic companies.” Source: RevenueBase Database · checked Sep 16, 2026
18	Bioprocure, LLC	Indirect evidence	Burlington, MA, United StatesHQ checked Sep 16, 2026	51-200	88 contacts →
	Indirect evidence “BioProcure aims to keep researchers in the lab - doing science!” Source: RevenueBase Database · checked Sep 16, 2026
19	Startup Shell	Partial evidence	College Park, MD, United StatesHQ checked Sep 16, 2026	501-1,000	88 contacts →
	Partial evidence “Startup Shell is a student-run startup incubator at the University of Maryland that helps student entrepreneurs build and scale their ventures.” Source: RevenueBase Database · checked Sep 16, 2026
20	Launch	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 16, 2026	11-50	80 contacts →
	Indirect evidence “Founded by Jason Calacanis.” Source: RevenueBase Database · checked Sep 16, 2026
21	Portal Innovations	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	11-50	67 contacts →
	Indirect evidence “Portal Innovations is a premier venture development engine that bridges scientific ideation in life sciences, medtech, and bioinformatics through commercial proof of concept by…” Source: RevenueBase Database · checked Sep 16, 2026
22	Idealab	Indirect evidence	Pasadena, CA, United StatesHQ checked Sep 16, 2026	51-200	67 contacts →
	Indirect evidence “Bill Gross started Idealab in 1996 to create and operate pioneering technology companies.” Source: RevenueBase Database · checked Sep 16, 2026
23	Proteinea	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 16, 2026	11-50	59 contacts →
	Partial evidence “Proteinea is a pioneering TechBio company transforming drug discovery and development by integrating advanced biotechnology with artificial intelligence.” Source: RevenueBase Database · checked Sep 16, 2026
24	Basistech	Indirect evidence	Somerville, MA, United StatesHQ checked Sep 16, 2026	51-200	58 contacts →
	Indirect evidence “We work with entrepreneurs to refine ideas, attract talent, access capital, and accelerate growth.” Source: RevenueBase Database · checked Sep 16, 2026
25	BEN Franklin Technology Partners Of Southeastern Pennsylvania	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 16, 2026	11-50	54 contacts →
	Indirect evidence “We’re (not just) investors.” Source: RevenueBase Database · checked Sep 16, 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: biotech incubators and accelerators. 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 biotech incubators and accelerators.
Partial evidence: Its own public description names part of biotech incubators and accelerators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name biotech incubators and accelerators. 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 1,109 biotech incubators and accelerators based in the United States

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Biotech incubators and accelerators based in the United States at a glance

As of Sep 16, 2026

17.3%Verified-email coverage

16.4Average contacts per company

1-10Median size (employees)

6.0%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

725

11-50

293

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 1,109 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 biotech incubators and accelerators, 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 “biotech incubators and accelerators”. 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 biotech incubators and accelerators), 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 biotech incubators and accelerators, 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, 3,150 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 16, 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.

Biotech incubators and accelerators 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 biotech incubators and accelerators, 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 biotech incubators and accelerators are there based in the United States?

RevenueBase identified 1,109 biotech incubators and accelerators 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 biotech incubators and accelerators?

New York leads with 66 headquartered companies, followed by San Francisco (47) and Boston (36).

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 3,150 verified decision-maker contacts tracked across these 1,109 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 16, 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.