Reaction is a syndicate and venture capital firm. Based in Palo Alto, California, United States. Among the 6 companies in the known portfolio are AiFi, Jumbotail, Galena, Shoelace, Shoelace Learning and Klivo.
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Investment focus
Contacts
Who to pitch at Reaction
Reaction portfolio companies (6)
- AiFi
- Jumbotail
- Galena
- Shoelace
- Shoelace Learning
- Klivo
Co-investors
Funds that share portfolio companies with Reaction.
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About Reaction
The firm's listing covers sectors AI, Commerce, Consumer and Education, and focus areas Food & Beverage, HR Tech, Information Services and Marketplaces; known deals cluster at Growth, Seed and Series A.
The team counts 14 people in our database. Michael Dorsey (General Partner), Charles Froland (General Partner) and Henko Haasbroek (Managing Partner) are shown as the contacts to pitch.
Across the known portfolio, 19 co-investors appear alongside Reaction, including ALDI USA, Cervin Ventures and YAYA Capital.
Frequently asked questions
What is Reaction?
Reaction is a syndicate and venture capital firm based in Palo Alto, California, United States, with a known portfolio of 6 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Reaction invest in?
Listed sectors include AI, Commerce, Consumer and Education; listed focus areas include Food & Beverage, HR Tech, Information Services and Marketplaces. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Reaction invest at?
The known deals of Reaction include Growth, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Reaction?
3 of the 14 people on file at Reaction are listed as contacts for the firm. All 14 have their own profile page.
How do I contact Reaction?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 14 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal