Gene Greiner

Active Investor

Founder & Managing Partner at 3G Capital

St Augustine, Florida

LinkedIn

Gene Greiner, Founder & Managing Partner at 3G Capital is an active investor based in St Augustine, Florida. This profile covers what Gene Greiner backs, at which stage, and how founders can reach out in 2026.

Gene Greiner is the Founder & Managing Partner at 3G Capital with over 20 years of experience in management consulting, venture capital, and real estate investment.

Gene Greiner invests in SaaS & Enterprise, Consumer & Retail, Fintech and PropTech & Real Estate, typically at Early Stage Venture and Late Stage Venture.

Location
St Augustine, Florida
Typical check
$3.8M

What does Gene Greiner invest in?

Investor type
VC
Stages
Early Stage VentureLate Stage Venture

Where is Gene Greiner based?

Gene Greiner is based in St Augustine, Florida.

Browse more startup investors near Gene Greiner:
Startup investors in FloridaStartup investors in the United States

How to reach Gene Greiner

Angels and operators like Gene Greiner 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.

Reach active investors like this one

Get investor contacts

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. "Gene Greiner." Round Funded investor database, updated September 22, 2026.

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

Frequently Asked Questions

Who is Gene Greiner?

Gene Greiner, Founder & Managing Partner at 3G Capital is an active investor based in St Augustine, Florida. Gene Greiner invests in SaaS & Enterprise, Consumer & Retail, Fintech and PropTech & Real Estate, typically at Early Stage Venture and Late Stage Venture.

What does Gene Greiner invest in?

Gene Greiner invests in SaaS & Enterprise, Consumer & Retail, Fintech and PropTech & Real Estate, typically at Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.

What stage does Gene Greiner invest at?

Gene Greiner typically invests at Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.

What is Gene Greiner's typical check size?

Gene Greiner typically writes checks around $3.8M. Use it as a signal for whether your raise fits their stage.

Where is Gene Greiner based?

Gene Greiner is based in St Augustine, Florida.

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.

Similar investors to Gene Greiner

Investors who share Gene Greiner's portfolio companies, firm, city or investment focus.

Get investor contacts