The 25 Energy & Climate 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 2026-09-13 · updates nightly

#	Company	Sector	HQ	Founded	Founders	Companies started
1	Indigo Agriculture	Energy & Climate	—	—	4	10
2	Aira	Energy & Climate	—	—	3	4
3	Jetson	Energy & Climate	—	—	3	3
4	Gourmey	Energy & Climate	—	—	3	2
5	Helion Energy	Energy & Climate	Everett, USA	2013	3	2
6	Elyos	Energy & Climate	—	—	3	1
7	Jetson Home	Energy & Climate	Canada	2024	3	1
8	Exowatt	Energy & Climate	—	—	2	8
9	ElectronX	Energy & Climate	—	—	2	4
10	Dunia	Energy & Climate	—	—	2	3
11	Dunia Innovations	Energy & Climate	—	—	2	3
12	Charm Industrial	Energy & Climate	—	—	2	2
13	Expand Energy	Energy & Climate	United States	1989	2	2
14	Form Energy	Energy & Climate	Somerville, USA	2017	2	2
15	Spiritus	Energy & Climate	—	—	2	2
16	Ternary Kinetics	Energy & Climate	New Zealand	2023	2	2
17	The Nuclear Company	Energy & Climate	—	—	2	2
18	Universal Hydrogen	Energy & Climate	—	—	2	2
19	Zincovery	Energy & Climate	—	—	2	2
20	Deep Sky	Energy & Climate	—	—	2	1
21	Millibatt	Energy & Climate	—	—	2	1
22	Ragas	Energy & Climate	—	—	2	1
23	Storio Energy	Energy & Climate	—	—	2	1
24	TAE Technologies	Energy & Climate	Foothill Ranch, USA	1998	2	1
25	Tri Alpha Energy	Energy & Climate	—	—	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.