Worldpay (FIS)

Worldpay (FIS) leads in transaction density, processing 300B payments annually across 1M+ merchant locations — 50% more transactions than #10 Global Payments. Its $9B revenue underscores massive scale, yet the 2023 separation from FIS in an $18.5B GTCR deal marked one of fintech's largest carve-outs. Operating in 140 countries, Worldpay outperforms the average processor by handling 3× the global transaction count.