The 32 Biotech & Pharma companies that produced the most founders (2026)

A founder factory is a company whose people leave to start companies of their own. This ranks every company in the graph by how many of its alumni — people who founded it or worked there — went on to found at least one company, counting only ventures started no earlier than the company itself.

Refreshed 2026-10-05 · updates nightly

#	Company	Sector	HQ	Founded	Founders	Companies started
1	Editas Medicine	Biotech & Pharma	—	—	5	21
2	Intellia Therapeutics	Biotech & Pharma	—	—	4	7
3	Chroma Medicine	Biotech & Pharma	—	—	4	6
4	Beam Therapeutics	Biotech & Pharma	—	—	3	8
5	Proof Diagnostics	Biotech & Pharma	—	—	3	6
6	GRAIL	Biotech & Pharma	Menlo Park, USA	2016	3	4
7	Generate Biomedicines	Biotech & Pharma	—	—	3	4
8	Again	Biotech & Pharma	—	—	3	2
9	Baseimmune	Biotech & Pharma	—	—	3	1
10	Baseimmune Ltd.	Biotech & Pharma	United Kingdom	2019	3	1
11	Pendulum Therapeutics	Biotech & Pharma	San Francisco, USA	2014	3	1
12	EnPlusOne Biosciences	Biotech & Pharma	—	—	2	10
13	Empress Therapeutics	Biotech & Pharma	—	—	2	7
14	Tessera Therapeutics	Biotech & Pharma	—	—	2	7
15	Xaira Therapeutics	Biotech & Pharma	San Francisco, USA	2023	2	7
16	Merge Labs	Biotech & Pharma	—	—	2	6
17	Moderna	Biotech & Pharma	Cambridge, USA	2010	2	6
18	Archon Biosciences	Biotech & Pharma	—	—	2	5
19	Colossal Biosciences	Biotech & Pharma	Dallas, USA	2021	2	5
20	Vilya	Biotech & Pharma	—	—	2	5
21	Genentech	Biotech & Pharma	United States	1976	2	4
22	Kernel	Biotech & Pharma	Los Angeles, United States	2016	2	4
23	Color Genomics	Biotech & Pharma	Burlingame, USA	2013	2	3
24	Curie.Bio	Biotech & Pharma	—	—	2	3
25	Foundation Medicine	Biotech & Pharma	—	—	2	3
26	Altos Labs	Biotech & Pharma	San Diego, USA	2021	2	2
27	Atomwise	Biotech & Pharma	San Francisco, USA	2012	2	2
28	Halcyon Molecular	Biotech & Pharma	United States	2008	2	2
29	InterVenn	Biotech & Pharma	—	—	2	2
30	Zag Bio	Biotech & Pharma	—	—	2	2
31	Enveda Biosciences	Biotech & Pharma	—	—	2	1
32	Purposeful	Biotech & Pharma	—	—	2	1

How this is counted. A person counts as an alumnus of a company if they founded it or worked there. They count towards the company’s score if they went on to found at least one other company that was started no earlier than the company itself. Universities and other non-commercial organisations are pruned from the graph where we can identify them. Data is community-corrected — fix something.