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ACI Worldwide

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Read 117 ACI Worldwide reviews and testimonials from customers, explore 115 case studies and customer success stories, and watch 14 customer videos to see why companies chose ACI Worldwide as their Payments 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
  • 115 Case Studies View
  • 14 Customer Videos View
Customer Rating Review Score based on 4263 reference ratings
4.8/5.0 (4263)
  • Summer 2026 Market Leader Payment Gateway Software

117Testimonials

  • "Nationwide sees fraud rates plummet 80% with ACI Proactive Risk Manager."

  • “We view our Postilion switches as the goose that lays the golden egg.”

  • “Our ATM network is one of the fastest growing networks in the world today, with a wide range of proven products, domain knowledge and commitment to the industry, we believe …

116 more testimonials currently locked

115 Case Studies

  • ING cuts hardware costs and speeds banking at web scale with ACI …

  • Petrol Pumps and Convenience Store cuts fraud 50% with ACI Worldwide

  • Dock launches Latin America acquiring in 7 months with ACI Worldwide

114 more case studies currently locked

14 Customer Videos

  • Bank of New Zealand Addresses the Issue of Counterfeit Cards
  • LCEC Saves $3M a Year with Expanded Payment Options
  • Delivering a Persona-Based Mobile Payments Experience
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 115 businesses that use ACI Worldwide.

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