Ryan Sullivan

Ryan Sullivan

Investor atFirstMarkFirm active Sep 29New York

Ryan Sullivan is an investor at FirstMark focusing on enterprise software. He previously invested at Ansa Capital and M33 Growth, and graduated from the University of Notre Dame.

What Ryan can write

Writes checks of$1M to $30M
Comes in atPre-seed, Seed, Series ACan lead the round
Ownership target7-10%At first check
Email the firm[email protected]The firm's own inbox for founders.

FirstMark writes $1M to $30M checks, larger than 83% of firms in the atlas.

Bars: how many firms report each check band. Highlighted: FirstMark.

Career

  1. Ansa Capital · Investor
  2. M33 Growth · Investor
  3. FirstMark · Investor
    Now

Focus

enterprise softwarecybersecurityhealthcare

Education

University of Notre Dame, BBA in Finance and Computer Science

Also at FirstMark

Partners like Ryan

At firms with a similar stage, sector and check size.

Alert me when FirstMark is active

One email when Ryan's firm raises a fund, adds a partner or shows new activity.

Founders and investors at a Mode VC gathering

Send Mode VC your deck

Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.

Send your deck

Questions

Who is Ryan Sullivan?

Ryan Sullivan is an investor at FirstMark focusing on enterprise software. He previously invested at Ansa Capital and M33 Growth, and graduated from the University of Notre Dame.

How much does Ryan Sullivan invest?

Ryan Sullivan invests through FirstMark, which writes checks of $1M to $30M at pre-seed, seed, series a.

How do I pitch Ryan Sullivan?

Email [email protected], the firm's inbox for founders, and name Ryan in the subject. A warm intro from a founder FirstMark backed works better.

What did Ryan Sullivan do before FirstMark?

Investor at Ansa Capital; Investor at M33 Growth.

Last updated 2026-10-15. Is this you? Ask for a correction.