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FIS sells the behind-the-scenes software and plumbing that banks, payment companies, and businesses use to move money, process transactions, and run their operations.
FIS is one of the companies that keeps money moving without most people ever seeing it. When you use a debit card, log into your bank account, or a business takes a payment, there is a good chance some FIS software is working quietly in the background. The company sells the technology that banks and payment companies run on, rather than serving regular customers directly.
Its business comes in two main flavors. One part sells banking software to financial institutions — the systems that handle deposits, loans, and customer accounts. The other part handles payments: it processes card transactions and helps merchants and payment companies accept and settle money. The customers are banks, credit unions, payment processors, and large businesses, and they pay FIS through long-term contracts and per-transaction fees. Once a bank builds its core systems on FIS software, switching is painful and expensive, which gives FIS sticky, recurring revenue. FIS grew partly by buying up competitors, and for years it owned Worldpay, a giant merchant payments processor. That deal made FIS much bigger but also more complicated and more debt-heavy. In 2024 it spun Worldpay back off, reversing course to focus on its core banking and capital-markets software. The company has also been cutting costs and buying back shares to lift its stock, though its growth has been modest and it faces tough rivals like Fiserv and Jack Henry.
The honest knock on FIS is that it is a slow-growth, somewhat sprawling company that has spent a lot of energy fixing deals it made in the past. Its software is deeply embedded in the financial system and generates steady cash, but the company has struggled to grow quickly or fetch the premium valuation of a fast-growing tech firm. In short, it is a workhorse of the financial world — essential, unglamorous, and still working to prove it can grow.
Saved answer · last researched 20 Oct 2026