Matt Brown is a Partner at Matrix Partners focusing on early-stage investments in fintech and vertical software. He previously led product at Afterpay and founded Seiza and Bonsai.

What Matt can write

Writes checks ofNot reported
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.

Career

  1. Work4 · Co-founder, VP of Product
  2. Seiza · Founder
  3. Afterpay · Led product
  4. Bonsai · Founder
  5. Matrix Partners · Partner
    Now

Companies founded

SeizaBonsaiWork4

Focus

fintechvertical softwareearly-stage

Education

UC Berkeley, PPEOxford, PPE

Also at Matrix Partners

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

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Questions

Who is Matt Brown?

Matt Brown is a Partner at Matrix Partners focusing on early-stage investments in fintech and vertical software. He previously led product at Afterpay and founded Seiza and Bonsai.

How much does Matt Brown invest?

Matrix Partners has not reported a check size. It invests at pre-seed, seed, series a.

How do I pitch Matt Brown?

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

What did Matt Brown do before Matrix Partners?

Co-founder, VP of Product at Work4; Founder at Seiza; Led product at Afterpay; Founder at Bonsai.

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