Pay By Group
Pay By Group, founded in 2011 in San Francisco by Camilo Acosta, is a white-label checkout payment option that lets friends and family split the cost of online purchases, earning a convenience fee from consumers (2.9%, capped at $25 per person). The company reports over 300 merchants, well over $10 million in lifetime transaction volume, a team of 20, and $3.4 million raised, with travel (especially vacation rentals) as its core market. Its first client came through press coverage after its 500 Startups demo day.
- •Charging the consumer a small per-person fee on shared purchases turns each group payment into a revenue event, so growth scales with how many people split each order rather than with merchant count alone.
- •Plugging in as a payment button inside existing merchant checkouts lets Pay By Group ride on merchants' traffic without needing its own marketplace of buyers.
- •Focusing on high-average-order-value categories like travel, where typical orders run $1,500 to $2,000, makes each transaction's fee meaningful relative to the cost of acquiring and serving a merchant.
- •Tracking payment volume instead of user counts signals a deliberate focus on high-spend groups, which fits a model where a few large transactions matter more than many small ones.
- 1.Build a white-label checkout button that merchants can install in minutes, positioned as a payment method alongside cards and wallets.
- 2.Start with a vertical with high average order values, such as vacation rentals, where group purchases are common and fees are worth more.
- 3.Charge the group organizer nothing and the invited payers a small percentage fee, with a per-person cap to keep large purchases affordable.
- 4.Use press coverage and accelerator demo days to land an early merchant, then work closely with that client to shape the first product version.
- 5.Track total transaction volume and repeat usage per customer as core health metrics rather than vanity user counts.
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