Mark Williamson
Managing Partner at Calera Capital
Boston, Massachusetts
Mark Williamson, Managing Partner at Calera Capital is an active investor based in Boston, Massachusetts. This profile covers what Mark Williamson backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPE
- Stages
- Pre SeedSeed
- Invests in
- PropTech & Real EstateConsumer & RetailHealthcare & Biotech
- Location
- Boston, Massachusetts
- Typical check
- $150K
- Past investments
- 7
Notable investments
LoopNet
SpoolHarvard Management CompanyTule
Patients Know BestRock-It CargoSleepy'sHow to reach Mark Williamson
Angels and operators like Mark Williamson reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.
Connect with Mark Williamson
Frequently Asked Questions
What does Mark Williamson invest in?
Mark Williamson invests in PropTech & Real Estate, Consumer & Retail and Healthcare & Biotech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Mark Williamson invest at?
Mark Williamson typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Mark Williamson's typical check size?
Mark Williamson typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do I contact Mark Williamson?
Unlock Mark Williamson's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.