ACI Worldwide

ACI Worldwide Inc. (NASDAQ: ACIW) is a payment systems company headquartered in Naples, Florida. ACI develops a broad line of software focused on facilitating real-time electronic payments. These products and services are used globally by banks, financial intermediaries such as third-party electronic payment processors, payment associations, switch interchanges, merchants, corporations, and a wide range of transaction-generating endpoints, including automated teller machines (“ATM”), merchant point of sale (“POS”) terminals , bank branches, mobile phones, tablet computers, corporations, and internet commerce sites.[citation needed]


ACI was founded in Omaha, Nebraska as Applied Communications Inc, in 1975, to develop software for communications applications using the new NonStop computers from Tandem Computers. The founders were James Cody, Dave Willadsen, and Dennis Gates. Chuck Hackett, Charly Foglesong, and Mike May began ACI’s relationship with Tandem. Early projects involved building systems to handle ATMs and front ends for core banking systems, which led to the launch of the first product, BASE24, in 1982. BASE24 was coined by a salesman to represent “Baseline Software for 24 hour-per-day system operations”.

BASE24 was expanded over time to service transactions from other channels, such as POS terminals and bank branch systems. The product portfolio grew to cover functions related to card transactions, such as clearing, settlement and fraud detection. The hardware support for these products was extended to suppliers IBM, HP, Stratus and Sun Microsystems.

In the 1990s, ACI’s product range was expanded to cover wholesale banking payments with software for ACH transactions and wire transfers leading to the acquisition of IntraNet, Inc. in 1998,[2] and adding the Money Transfer System product.

Since 1995, ACI has been publicly traded on NASDAQ, initially under the name Transaction Systems Architects (TSA), and, since July 2007, under the name ACI Worldwide, Inc. (ACIW).[3] Prior to that ACI had periods of ownership by US West and Tandem, and as a private company.


August 7, 1998: IntraNet, Inc.[4] was acquired by ACI Worldwide predecessor Transaction Systems Architects, Inc. IntraNet, Inc. manufactured software systems to facilitate electronic payments.

  • January 11, 2001: MessagingDirect was acquired by Transaction System Architects Inc.,[5]for approximately 3.3 million shares of Transaction Systems’ Class A Common Stock.
  • June 29, 2005: S2 Systems signed an agreement to sell substantially all of its assets to Transaction Systems Architects, Inc.[6]
  • October 5, 2005: Restructuring of Transaction Systems Architects, Inc. into a highly focused organization, merging ACI, Insession and IntraNet [7][8]into one operating unit under the name ACI Worldwide. The name change became official in July, 2007.[3]
  • August 8, 2006: P&H Solutions Inc., a provider of a Web-based corporate cash management product, was acquired by ACI Worldwide.[9]
  • February 7, 2007: Visual WEB Solutions Inc.,[10]a financial banking applications company was acquired.
  • November 17, 2009: Euronet Essentis[11]was purchased by ACI to expand card issuing and merchant management capabilities[12]
  • March 21, 2011: Acquisition of ISD Corporation, a provider of secure payment management software for retailers in the U.S. and Canada, was announced,[13]to broaden the functionality of ACI’s payments products for retailers.[14]
  • February 13, 2012: S1 Corporation was acquired[15]to broaden ACI’s suite of payment offerings for financial organizations, processors and retailers.[16][17]
  • March 11, 2013: Online Resources Corporation,[18]a provider of online banking and full service bill pay solutions, was acquired, adding Electronic Bill Presentment and Payment (EBPP) solutions as a strategic part of ACI’s Universal Payments portfolio.
  • November 5, 2013:The purchase of Official Payments Holdings,[19]a seller of electronic bill payment technology that processed about 20 million payments, worth more than $9 billion, annually, was completed.[20]
  • July 21, 2014: An agreement was announced to acquire Retail Decisions (ReD).[21][22]It was completed on August 12, 2014.[23]
  • November 4, 2015: The acquisition of PAY.ON who provide white-label hosted payment gateway services was completed.[24]
  • February 28, 2019: ACI enters agreement to acquire Speedpay,[25]Western Union’s U.S. bill pay business for $750 million [26]

Software products

  • Retail Payments
  • Real-time Payments
  • Merchant Payments
  • Payments Intelligence
  • Digital Channels
  • Bill Payments


  1. ^ Jump up to:ab c d e f g “US SEC: Form 10-K ACI Worldwide, Inc”. United States Securities and Exchange Commission. Retrieved January 18, 2018.
  2. ^“ACI corporate banking division reverts to IntraNet brand name”. Finextra. Retrieved 14 June 2011.
  3. ^ Jump up to:ab “TSA changes name to ACI Worldwide”. ATM Marketplace. Archived from the original on 9 February 2012. Retrieved 14 June 2011.
  4. ^“IntraNet, Inc.: Private Company Information – Bloomberg”.
  5. ^“Transaction Systems Architects Completes Acquisition of MessagingDirect Ltd. – Free Online Library”.
  6. ^“Transaction Systems Architects to Acquire S2 Systems; Accretive Acquisition Strengthens Industry Leadership”. 2005-06-29.
  7. ^“Transaction Systems Architects to Combine Business Units”. 2005-10-05.
  8. ^“TSA restructures, merges ACI, Insession and IntraNet”. Finextra Research. 6 October 2005.
  9. ^“P&H Solutions, Inc.: Private Company Information – Bloomberg”.
  10. ^“Visual WEB Solutions, Inc.: Private Company Information – Bloomberg”.
  11. ^“ACI Worldwide to Acquire Euronet Essentis”. 2009-11-17.
  12. ^“ACI to buy Euronet’s Essentis unit”.
  13. ^“Archived copy”. Archived from the original on 2011-06-23. Retrieved 2011-06-14.
  14. ^“ACI Worldwide acquires ISD Corp”. Bloomberg Businessweek. Archived from the original on 2011-06-23.
  15. ^“ACI Worldwide completes acquisition of S1 Corporation”.
  16. ^“Bloomberg BusinessWeek article”.
  17. ^“ACI Seals S1 deal for $516 million”. 3 October 2011 – via Reuters.
  18. ^Editorial, Reuters. “${Instrument_CompanyName} ${Instrument_Ric} Key Developments –”. U.S.
  19. ^“ACI Worldwide Closes Official Payments Deal”.
  20. ^“ACI Worldwide, Inc. Form 10-K Period Ending December 31, 2013” (PDF). Archived from the original (PDF)on March 10, 2014. Retrieved March 10, 2014.
  21. ^“ACI Worldwide to Acquire Retail Decisions (ReD)”. ACI Worldwide.
  22. ^“ACI Worldwide seeks opportunities in CNP fraud protection with ReD acquisition”. Finextra Research. 21 July 2014.
  23. ^“ACI Worldwide closes ReD acquisition”. Finextra Research. 13 August 2014.
  24. ^“ACI Pays Up For PAY.ON”.
  25. ^
  26. ^“ACI Worldwide acquires bill payment firm Speedpay for $750 million”. Finextra Research. 28 February 2019.

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