John Carroll
Managing Director at Summit Partners
Boston, Massachusetts
John Carroll, Managing Director at Summit Partners is an active investor based in Boston, Massachusetts. This profile covers what John Carroll backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPEInvestment PartnerInvestor
- Stages
- Series B
- Invests in
- FintechPaymentsLending & CreditHealthcare & BiotechDigital Health & HealthTechBiotech & PharmaSaaS & EnterpriseConsumer & Retail
- Location
- Boston, Massachusetts
- Typical check
- $3M
- Past investments
- 84
Notable investments
Advance Health
Striim
DuPage Medical Group
On Robot
Advanced Cell Diagnostics
Darktrace
Jungle Scout
PrismHR
Quay AustraliaNinja RMM
Markforged
PodiumHow to reach John Carroll
Angels and operators like John Carroll 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 John Carroll
Frequently Asked Questions
What does John Carroll invest in?
John Carroll invests in Fintech, Payments, Lending & Credit and Healthcare & Biotech, typically at Series B. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Carroll invest at?
John Carroll typically invests at Series B. Lead with traction that fits the stage when you reach out.
What is John Carroll's typical check size?
John Carroll typically writes checks around $3M. Use it as a signal for whether your raise fits their stage.
How do I contact John Carroll?
Unlock John Carroll's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.