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ACI Worldwide

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Read 117 ACI Worldwide reviews and testimonials from customers, explore 105 case studies and customer success stories, and watch 14 customer videos to see why companies chose ACI Worldwide as their Payment Gateway Software

ACI Worldwide, the Universal Payments (UP) company, powers electronic payments for more than 5,100 organizations around the world. More than 1,000 of the largest financial institutions and intermediaries, as well as thousands of global merchants, rely on ACI to execute $14 trillion each day in payments and securities. In addition, a myriad of organizations utilize their electronic bill presentment and payment services. Through their comprehensive suite of software solutions delivered on customers’ premises or through ACI’s private cloud, they provide real-time, immediate payments capabilities and enable the industry’s most complete omni-channel payments experience.

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  • 117 Testimonials View
  • 105 Case Studies View
  • 14 Customer Videos View
Customer Rating Review Score based on 4038 reference ratings
4.8/5.0 (4038)
  • Summer 2025 Market Leader Payment Gateway Software

117Testimonials

  • "All it would take is just one student to suspect their info was compromised to make a major ordeal for our university. We partner with aci to ensure students are …

  • “Aci is Considered One Of The Best Switch Providers In The Industry And We Chose Aci Not Just Because It Offered The Right Product, But Because We Didn’t Want Any …

  • "ACI gave us a staged payments system to immediately capture the payment information when a member enrolls and then hold onto the payment information until we received their enrollment information …

116 more testimonials currently locked

105 Case Studies

  • Exploring the Future of Payments Collections in Auto-Finance with SAFCO

  • Bank of New Zealand Addresses the Issue of Counterfeit Cards

  • Nationwide Building Society achieves market leading fraud reduction

104 more case studies currently locked

14 Customer Videos

13 more videos currently locked

Additional ACI Worldwide Information & Resources

Read ACI Worldwide Reviews, Testimonials & Customer References from 117 real ACI Worldwide customers.

Browse ACI Worldwide Case Studies, Customer Success Stories, & Customer References from 105 businesses that use ACI Worldwide.

Watch ACI Worldwide Customer Videos to learn why 14 businesses chose ACI Worldwide.