NASDAQ:ACIW#3 of 11 in this industry2 markets
ACI Worldwide
digital paymentsreal-time paymentsrealtime payments
Revenue—not disclosed
Markets named in2across this research
Incumbent in2the one to displace
Rank in industry3 / 11by revenue
01
Where it competes
Every market in this research that names ACI Worldwide. Where it is the named incumbent it leads the list. The entry signal is the market’s, not the company’s — it says how open that market is to someone new.
| Market | Role | Share | Entry signal |
|---|---|---|---|
| Electronic Bill Presentment and Payment (EBPP) — Biller Portals, Consolidators and Payment Acceptance 52232 Financial transactions processing, reserve and clearing house activities |
Incumbent | — | 45% entry signal |
| Appraisal & Property Inspection Software 5313 Activities related to real estate |
Incumbent | — | 45% entry signal |
02
Others in Financial transactions processing, reserve and clearing house activities
Ranked by revenue. Companies that disclose none follow, ordered by how many markets name them.
| 1 | Paymentus Private | $1.2B |
| 2 | REPAY Private | $309M |
| 3 | ACI Worldwide NASDAQ:ACIW | — |
| 4 | Alacriti Private | — |
| 5 | Billtrust Private | — |
| 6 | Bottomline Private | — |
| 7 | doxo Private | — |
| 8 | InvoiceCloud Private | — |
| 9 | KUBRA Private | — |
| 10 | One Inc Private | — |
| 11 | PayZen Private | — |
Company details are from the search.cos database (snapshot 2026-10-18); market roles, shares and sourced revenue are from the research records linked above. Filed under the industry it serves — a software vendor sits with the industry that buys from it. Ranks convert currencies at approximate rates to put companies in order; every figure shown is in the currency it was reported in.