John Phelan

Active Investor

Managing Partner and Co-Founder at MSD Capital, L.P.

New York City, New York

WebsiteLinkedIn

John Phelan, Managing Partner and Co-Founder at MSD Capital, L.P. is an active investor based in New York City, New York. This profile covers what John Phelan backs, at which stage, and how founders can reach out in 2026.

John Phelan invests in Fintech, Cybersecurity, Healthcare & Biotech and Artificial Intelligence, typically at Seed. Portfolio companies on record include Gusto, Acorns and Allegis Corporation.

Location
New York City, New York
Typical check
$250K
Past investments
33

What does John Phelan invest in?

Investor type
Family Office
Stages
Seed

Where is John Phelan based?

John Phelan is based in New York City, New York.

Which companies has John Phelan invested in?

GustoAcornsAllegis CorporationCorero Network SecurityCadence NetworkWaypoint Leasing ServicesI-manyBandspeedFinch TherapeuticsSparkCognitionInternet BrandsRxCentricGarage Technology VenturesEagle Eye NetworksCarsDirect.comPaperExchange.comBig Switch NetworksKobaltŌURANovaluxClouderaThe Bulldog GroupOutercurve TechnologiesDataminr

Plus 9 more companies on record.

How to reach John Phelan

Angels and operators like John Phelan 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.

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About this profile

This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.

Cite this page

Round Funded. "John Phelan." Round Funded investor database, updated September 25, 2026.

Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-phelan

Frequently Asked Questions

Who is John Phelan?

John Phelan, Managing Partner and Co-Founder at MSD Capital, L.P. is an active investor based in New York City, New York. John Phelan invests in Fintech, Cybersecurity, Healthcare & Biotech and Artificial Intelligence, typically at Seed. Portfolio companies on record include Gusto, Acorns and Allegis Corporation.

What does John Phelan invest in?

John Phelan invests in Fintech, Cybersecurity, Healthcare & Biotech and Artificial Intelligence, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.

What stage does John Phelan invest at?

John Phelan typically invests at Seed. Lead with traction that fits the stage when you reach out.

What is John Phelan's typical check size?

John Phelan typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.

Where is John Phelan based?

John Phelan is based in New York City, New York.

Which companies has John Phelan invested in?

Companies John Phelan has backed, according to the Round Funded catalog, include Gusto, Acorns, Allegis Corporation, Corero Network Security, Cadence Network and Waypoint Leasing Services.

How do founders reach investors like this?

Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.

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