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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
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Customer Rating Review Score based on 3907 reference ratings
4.8/5.0 (3907)
  • Summer 2025 Market Leader Payment Gateway Software
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117Testimonials

  • “Since the move we have achieved as high as 100% up-time and always above 99.9% availability. We’re now able to free up our internal IT team from the burden of …

    Joe Macrina AVP, Internet Banking Manager

  • “ACI understands the business, is flexible enough to offer choices, and provides value and functionality that help us drive down costs. ACI really does contribute to Moneris’ long-term success.”

    Jim Baumgartner President and CEO

  • “That made it hard to put our trust in them."

    U.S. Based Financial Institution Manager
116 more testimonials currently locked

105 Case Studies

  • Tompkins Financial Corporation Tompkins Improves Online Banking Up-Time with Move to the …

    Joe Macrina AVP, Internet Banking Manager

  • Coast Capital Savings Fighting Financial Crime with an Enterprise Solution

    Marc Trepanier Manager of Fraud Prevention

  • Nationwide Building Society achieves market leading fraud reduction

104 more case studies currently locked

14 Customer Videos

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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.

FeaturedCustomers has 1,902,078+ validated customer references including reviews, case studies, success stories, customer stories, testimonials and customer videos that will help you make better software purchasing decisions.