Keith Block is an angel investor and operator angel based in Boston, Massachusetts, United States with 2 known investments: Klaviyo and AssemblyAI.
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Investment focus
- Stage
- Growth
Contacts
Keith Block portfolio companies (2)
- Klaviyo
- AssemblyAI
Affiliated funds' portfolios
CEO and Founder at Smith Point Capital, whose known portfolio counts 9 companies
- Code Metal
- Gather AI
- Bestow
- ZEDEDA
- AssemblyAI
- Prophecy.io
- Anomalo
- Virtualitics
- Neuron7.ai
Investor Profile
The known portfolio sits in sectors AI, Commerce, FinTech and SaaS, and focus areas Analytics, Cloud Infrastructure, Customer Success and Data Analytics.
Keith Block appears in Growth rounds across the known deals.
The portfolio and focus above give founders context on whether Keith Block matches their raise.
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Frequently asked questions
Who is Keith Block?
Keith Block is an angel investor and operator angel based in Boston, Massachusetts, United States with 2 known investments on file, among them Klaviyo and AssemblyAI. The sections above list the sectors, stages and firms attached to that record.
What does Keith Block invest in?
Listed sectors include AI, Commerce, FinTech and SaaS; listed focus areas include Analytics, Cloud Infrastructure, Customer Success and Data Analytics. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Keith Block invest at?
The known deals of Keith Block include Growth rounds. 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 Keith Block listed at?
Keith Block is listed as CEO and Founder at Smith Point Capital, whose known portfolio counts 9 companies.
How do I contact Keith Block?
An email address, a phone number and a LinkedIn page are on file for Keith Block. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal