Jack Hayden is a 2025 PII Fellow and Associate at Frankenbuild Ventures, whose known portfolio counts 1 company.
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Investment focus
- Stage
- Seed
Contacts
Affiliated funds' portfolios
2025 PII Fellow and Associate at Frankenbuild Ventures, whose known portfolio counts 1 company
- WeBuild Stuff
Investor Profile
Jack Hayden is listed against sectors Climate, Hardware and Real Estate, and focus areas Aerospace, Construction Tech, DeepTech and Defense in the database.
The stage tag on this profile is Seed.
What the affiliated firm has backed is the closest available signal on whether Jack Hayden is worth approaching.
Frequently asked questions
Who is Jack Hayden?
Jack Hayden is a venture capital investor based in Somerville, Massachusetts, United States, listed as 2025 PII Fellow and Associate at Frankenbuild Ventures. The known portfolio of that firm is one company. That portfolio belongs to the firm, not to Jack Hayden personally.
What does Jack Hayden invest in?
Listed sectors include Climate, Hardware and Real Estate; listed focus areas include Aerospace, Construction Tech, DeepTech and Defense. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Jack Hayden invest at?
Frankenbuild Ventures is listed for Seed rounds in the database, and Jack Hayden is listed there as 2025 PII Fellow and Associate. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Jack Hayden listed at?
Jack Hayden is listed as 2025 PII Fellow and Associate at Frankenbuild Ventures, whose known portfolio is one company.
How do I contact Jack Hayden?
A LinkedIn page is on file for Jack Hayden. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal