/People

Jim McKelvey

InvestorUnicorn founder

Founder at Block · General Partner at FINTOP Capital · Operator Advisor at Redbud VC

San Francisco, California

Writes $3M – $5M checks · typically $4M

FoundedBlock$2.9B

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Ask Rick Holton to introduce you to Jim

You →Rick · together at FINTOP Capital (2017–2026) →Jim

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You →Jamie · 4 people · together at Invisibly →Jim

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You →Sam · 6 people · together at Block →Jim

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About

Jim McKelvey is a Square co-founder and hands-on hardware builder (creator of the white card reader) whose Innovation Stack framework and artist’s glassblowing perspective drive creative, noncoastal company-building.

Contact· self-published, not guessed

Invests in

AI & Machine LearningCybersecurityFintechInsurTechSaaS

Founder at Block

Intro paths

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In turn, Jim can intro founders to Block's investors below.

Block's investors · 32

A*San Francisco · $500K – $3M checks · since 2021Access Technology VenturesMill Valley · since 2021Acequia Capital (AceCap)Seattle · $100K – $5M checks · since 2021Bling CapitalMiami Beach · $1M – $5M checks · since 2021Bond Capital ManagementSan Francisco · $100K – $25M checks · since 2021China Mobile CapitalBeijing · since 2026Citi VenturesNew York · since 2012Cota CapitalSan Francisco · since 2021FINTOP CapitalNashville · since 2021First Round CapitalSan Francisco · $100K – $20M checks · since 2021firstminute capitalLondon · $1M – $3M checks · since 2021Hinge CapitalHaddonfield · $500K – $1M checks · since 2021IDG CapitalHong Kong · $1M – $100M checks · since 2026Khosla VenturesMenlo Park · $100K – $20M checks · since 2021Kleiner PerkinsMenlo Park · $500K – $15M checks · since 2021Lerer HippeauNew York · $500K – $2M checks · since 2021Mosaic VenturesLondon · $1M – $10M checks · since 2021Muzinich & Co.since 2026Notable CapitalSilicon Valley · $5M – $50M checks · since 2021Omega Venture PartnersSilicon Valley · since 2021PruVen Capital PartnersLos Altos · $100K – $10M checks · since 2021Rizvi Traverse ManagementWest Palm Beach · $25M – $1B checks · since 2021Saints CapitalSan Francisco · since 2021Sapphire VenturesAustin · $5M – $20M checks · since 2021Sequoia CapitalMenlo Park · $100K – $50M checks · since 2021Source Code CapitalBeijing · since 2026Sozo VenturesRedwood City · since 2021SV AngelSan Francisco · $150K – $20M checks · since 2021SWaN & Legend Venture PartnersLeesburg · since 2021Tuesday CapitalSan Francisco · since 2021Visa VenturesLondon · since 2011XG VenturesMenlo Park · since 2021

Co-founders at Block

JDJack Dorsey
MM
Masashi MiyamotoFounder

Experience

  1. InvisiblyFoundercurrent2016 — presentSt Louis, Missouri, United States
  2. SquareCo-Founder and Directorcurrent2009 — present
  3. FINTOP CapitalCo-Founder & General Partnercurrent2017 — presentNashville Metropolitan Area
  4. LaunchCodeFoundercurrent2013 — presentGreater St. Louis
  5. Washington University in St. LouisTrusteecurrent2017 — presentSaint Louis
  6. Third Degree Glass FactoryCo-Foundercurrent2001 — presentGreater St. Louis
  7. Mira Smart Conference Inc.Foundercurrent1989 — presentGreater St. Louis
  8. Federal Reserve Bank of St. LouisDirector2017 — 2023Greater St. Louis
  9. IBMVisiting Scientist1987 — 1989

Skills & more

Entrepreneurship99Start-ups99E-commerce77Venture Capital43Product Management37User Experience14Business Development55Mobile Applications66Web Development16Product Development31Business Strategy40Strategic Partnerships93
+1 moreMobile Devices

From Jim's professional profile.

Deals · 1

BlockBoard seat

via FINTOP Capital · filed May 2021 · $10.7M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Investor

CazooCurateDecideKabbageKeplerNoble MobileRezilient HealthRill DataSolis AgrosciencesUNestWashington University in St. Louis

Sources: SEC Form D filings · curated public sources.

Colleagues at FINTOP Capital

Network3

Investors connected to Jim in public investor directories — a warm-intro map.

Frequently asked questions

Who is Jim McKelvey?
Jim McKelvey is a Square co-founder and hands-on hardware builder (creator of the white card reader) whose Innovation Stack framework and artist’s glassblowing perspective drive creative, noncoastal company-building.
Where does Jim McKelvey work?
Jim McKelvey is Founder of Block and General Partner at FINTOP Capital.
What does Jim McKelvey invest in?
Jim McKelvey invests in AI & Machine Learning, Cybersecurity, Fintech, InsurTech, SaaS.
What check size does Jim McKelvey write?
Jim McKelvey typically writes checks of $3M – $5M.
What companies did Jim McKelvey found?
Jim McKelvey founded Block.
What boards does Jim McKelvey sit on?
Jim McKelvey holds tracked board seats at Block.
What companies has Jim McKelvey invested in?
Investments tracked here include Cazoo, Curate, Decide, Kabbage, Kepler, Noble Mobile, Rezilient Health, Rill Data, Solis Agrosciences, UNest, Washington University in St. Louis.
Where did Jim McKelvey go to school?
Jim McKelvey studied at Washington University in St. Louis (Bachelor of Applied Science (BASc), Computer Science); Washington University in St. Louis (Bachelor of Arts (B.A.), Economics); The London School of Economics and Political Science (LSE) (General Course, Statistics and Maths).

Founder mafias

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