Companies that use Sardine

Source: Analysis of Linkedin bios of 16 companies that use Sardine

I noticed that Sardine's customers are digital-first marketplaces and platforms handling high-volume transactions in industries prone to fraud risk. They're not traditional e-commerce stores. Instead, they facilitate peer-to-peer exchanges, resale markets, digital goods, and event ticketing where verifying both buyers and sellers is critical. Whop processes nearly $1B in payments for digital products sold "guerrilla style" across social media. StockX runs a bid-ask marketplace for collectibles. SeatGeek operates a mobile ticketing marketplace. These are environments where fraud can enter from multiple sides of each transaction.

These companies span from growth stage to mature scaling businesses. Whop is Series A with 341 employees and rapidly growing transaction volume. SeatGeek and StockX are both Series E companies with 782 and 1,479 employees respectively, suggesting they're past product-market fit and scaling operations. The funding rounds and employee counts indicate companies managing serious transaction volumes where fraud prevention directly impacts unit economics.

Source: Analysis of tech stacks from 16 companies that use Sardine

I noticed that companies using Sardine tend to be direct-to-consumer businesses with significant customer service needs and aggressive digital acquisition strategies. The extremely high correlation with Re:amaze, a customer support platform, combined with heavy Facebook Ads usage tells me these are consumer-facing companies that need to manage high volumes of customer interactions while running paid social campaigns at scale.

The pairing of Sardine with Re:amaze is particularly revealing. Sardine specializes in fraud prevention and compliance, so companies using both tools are likely handling payments and transactions that require robust fraud detection while simultaneously managing customer inquiries about those transactions. This suggests e-commerce, fintech, or marketplace businesses where transaction disputes and verification questions are common. The Facebook Ads correlation reinforces this, since these companies are clearly investing heavily in acquiring customers through paid social channels, which often brings higher fraud risk that Sardine helps mitigate.

The full stack reveals marketing-led companies in growth stage, likely Series A to C. They're focused on customer acquisition through performance marketing rather than enterprise sales, given the Facebook Ads emphasis. The presence of Re:amaze rather than enterprise support tools like Zendesk or Salesforce Service Cloud suggests they're still in that mid-market sweet spot where they need sophisticated tools but want more agile, affordable solutions. These companies are probably processing thousands of transactions and dealing with the operational challenges that come with rapid scaling.