Catalyst4
Overview
Catalyst4 is a grantmaking 501(c)(4) nonprofit organization founded by Google co-founder Sergey Brin. It was established with proceeds from the sale of Tesla stock. The organization makes investments and provides grants supporting initiatives related to climate and environmental challenges, as well as research and development for neurological diseases such as Parkinson's, Alzheimer's, and ALS. It has made direct investments in companies, including leading an $80 million Series B round for Stellaromics in 2025.
Portfolio Companies
1
Website
catalyst4.orgInvestments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Stellaromics | Feb 2025 | Series B | Lead |
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is Catalyst4 based?
Catalyst4 is headquartered in Palo Alto, California, United States.
When was Catalyst4 founded?
Founding year information for Catalyst4 is not publicly available.
How many portfolio companies does Catalyst4 have?
Catalyst4 has 1 portfolio company in Caplight's dataset.
What are some companies in Catalyst4's portfolio?
Portfolio companies visible on Caplight include Stellaromics.
What was Catalyst4's most recent investment shown here?
Catalyst4's most recent investment in this portfolio sample was in Stellaromics in 2025.
What sectors does Catalyst4 focus on?
Catalyst4 focuses on Healthcare & Life Sciences.
What company stages does Catalyst4 focus on?
Catalyst4 typically invests at the Mid stage.
What is Catalyst4's AUM?
Catalyst4's assets under management are estimated between $430.5M and $469.2M.