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Companies using S1 by ACI Worldwide, Inc. in 2025
As of 2025, 769 verified companies use S1 – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.
What is S1 by ACI Worldwide, Inc.?
S1 by ACI Worldwide, is a comprehensive suite designed for financial institutions. It is widely used to streamline operations in areas like banking, payments, and risk management. It’s designed to support roles in finance, operations, and technology departments.
Last updated date
August 17, 2025
Number of Companies using
769
The majority are based in the
United States
Most common industry?
Manufacturing
S1’s sample user list in 2025
Company Name
Country
Industry
Employees
Revenue
Product
We have data on 769 companies that use S1. Our S1 customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.
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S1 users and customers by country
United States
United Kingdom
2.6K Companies
France
2.6K Companies
Canada
2.6K Companies
Australia
2.6K Companies
Where S1 Shows Up Most
S1 is used across a wide range of sectors:
Manufacturing
Media & Internet
Business Services
Broadcasting
Finance
From lean startups to global enterprises, S1’s footprint is wide, and that means opportunity.
Tech Stack Database
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FAQs
Contact UsHow latest this data is?
This data is updated on August 17, 2025
What is S1 by ACI Worldwide, Inc.?
S1 by ACI Worldwide is a comprehensive suite designed for financial institutions. It is used to streamline operations in areas like banking, payments, and risk management. It supports roles in finance, operations, and technology departments.
How many companies are using S1 as of 2025?
As of 2025, there are 769 verified companies using S1.
In which country is S1 most widely used?
S1 is most widely used in the United States.
Which industries are using S1?
S1 is used across various industries, including Manufacturing, Media & Internet, Business Services, Broadcasting, and Finance.
Can I get a list of companies using S1?
Yes, a list of companies using S1 is available for download. The list includes company specifics such as industry, size, location, funding rounds, and revenue.