Sean Fanning

I’m Sean. I’ve spent the last decade and a half building and investing in companies, from inception through growth.

Work & background

  • Merit Holdings — Long-term ownership & applied AI.
  • Racepace — Coaching and community for endurance athletes.
  • Pathlight Ventures — Inception and pre-seed through early Series A.
  • OpenView — Growth investing. Series A, Series B, and beyond.
  • Dispatch — Company building in field services software.

Across product, go-to-market, fundraising, and corporate development. B2B and consumer; mostly vertical software.

Questions I keep coming back to

  • Data as float. Can a data business fund a permanent capital vehicle whose ambitions outlast the original business?
  • Learning from real-world work. How do recorded workflows, verifiable outcomes, and proprietary data become training grounds for AI and robotics?
  • Who captures AI’s value? Does AI strengthen existing software businesses—or route around them? Where do customer value and durable profits accumulate?
  • Distribution when agents do the buying. What happens to discovery, advertising, and competition when businesses sell to a customer’s agent?
  • Capital allocation & ownership. How do cash flow, control, incentives, and capital structure give companies room to make ambitious bets?

Writing

Capital Markets RoundupSubstack ↗

My archive of writing on markets and companies.

Outside work

  • Cycling, training, and racing. Leadville 100 finisher.
  • Former president and captain, Boston College men’s rowing.