Justin Smithline

Co-Founder / General Partner atTriple Impact CapitalNew York City

Justin Smithline is a general partner at Triple Impact Capital, previously a partner at Entrepreneurs Roundtable Accelerator. He co-founded three startups and has invested in over 100 companies.

What Justin can write

Writes checks ofNot reported
Comes in atPre-seed, SeedLead preference not reported
Pitch pageSubmit on their siteThe firm asks founders to apply here.

Career

  1. Linguaflex
  2. Instinctiv
  3. FunnelFire
  4. Entrepreneurs Roundtable Accelerator (ERA) · partner
  5. Entrepreneurs Roundtable Accelerator (ERA) · General Partner
  6. Triple Impact Capital · General Partner
    Now
  7. Big Red Venture Fund

Companies founded

LinguaflexInstinctivFunnelFireTriple Impact Capital

Investments named in public bios

Happy BabyWhite OpsLoveveryFingerprint.jsThirty MadisonPacific Biosciences

Focus

early-stage investingstartup acceleratormedical devicesmobile mediab2b dataTechnology

Education

Cornell

Also at Triple Impact Capital

Partners like Justin

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

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Questions

Who is Justin Smithline?

Justin Smithline is a general partner at Triple Impact Capital, previously a partner at Entrepreneurs Roundtable Accelerator. He co-founded three startups and has invested in over 100 companies.

How much does Justin Smithline invest?

Triple Impact Capital has not reported a check size. It invests at pre-seed, seed.

How do I pitch Justin Smithline?

A warm intro from a founder Triple Impact Capital backed works best. A short LinkedIn note with one line on traction is the next best route.

What did Justin Smithline do before Triple Impact Capital?

Linguaflex; Instinctiv; FunnelFire; partner at Entrepreneurs Roundtable Accelerator (ERA); General Partner at Entrepreneurs Roundtable Accelerator (ERA); Big Red Venture Fund.

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