Casap, an AI agent platform for banks and credit unions, has raised a $56 million Series B round led by Base10 Partners, with Experian and Synchrony joining as strategic investors. Why it matters: the money is going after first-party fraud — customers disputing their own legitimate charges — a problem the company says now accounts for nearly a third of fraudulent card transactions.
October 28, 2026
What happened
Casap announced the oversubscribed round on October 28. Existing investors Emergence Capital and Lightspeed Venture Partners also took part, bringing the company’s total funding to $90 million, just over a year after its $25 million Series A. Casap did not disclose a valuation. The company says revenue grew 10 times in that period, more than double its original target, and that more than 100 banks, credit unions, fintechs and processors now use its platform.
What Casap’s agents actually do
Casap started with payment disputes, one of the least glamorous and most expensive jobs in banking. Its specialized agents handle a dispute from intake through investigation, decisioning, evidence collection, recovery and customer communication. The agents work inside the systems an institution already uses, follow that institution’s own policies, and escalate to a person when a decision needs human judgment. Every decision is backed by evidence and a record of what the agent did, so the outcome can be explained and audited.
The results the company reports across its customers: first-party fraud losses cut by up to 51%, a 96% chargeback win rate against a 60% industry average, dispute resolution times down from as long as 90 days to 8 days, and 73% of cases resolved through agentic automation with human oversight. Human processing time per case reportedly falls from 45 minutes to 1–2 minutes. These are company-reported figures, not independently audited results.
Why disputes, and why now
First-party fraud is awkward for banks: the “fraudster” is their own customer, consumer-protection rules put a heavy burden of proof on the institution, and investigating a claim by hand can cost more than simply paying it. Casap’s pitch is that agents change that math, so a bank no longer has to choose between eating the loss and spending heavily to fight the claim. With the new funding, Casap is expanding beyond disputes and fraud into other high-stakes operations — collections, claims and complex exceptions. Experian is exploring first-party fraud and consumer-intent signals with the company, and Synchrony, which serves over 100 million Americans through its partners, is backing the platform as both investor and believer in agentic service operations.
Why it matters
Most AI agent funding stories are about making office work faster. Casap is a useful test of the stronger claim: that agents can be trusted with regulated, money-moving decisions where a wrong call has legal consequences. Disputes are a good proving ground precisely because they are unglamorous, rule-bound and measurable — win rates and resolution times either improve or they don’t. If those numbers hold up as Casap moves into collections and claims, expect every large bank to face the same build-or-buy question. For customers of those banks, the practical change is simpler: a disputed charge that used to take three months may now be settled in about a week.
Frequently asked questions
What is first-party fraud?
It is fraud committed by the account holder themselves — for example, buying something, receiving it, and then disputing the charge as if it never happened. Casap says cardholders now account for nearly a third of fraudulent card transactions.
Who led Casap’s Series B?
Base10 Partners led the $56 million round. Experian and Synchrony joined as strategic investors, with Emergence Capital and Lightspeed Venture Partners returning. Total funding is now $90 million.
What will Casap do with the money?
The company says the funding will advance its AI platform and support its expansion from disputes and fraud into collections, claims and other complex financial-services operations.
Sources: Casap via PR Newswire; Fortune.