Transaction Network Services
multinational data communications company

Transaction Network Services (TNS) is a privately held, multinational company in the payments, financial and telecommunications industries. TNS is the supplier of networking, integrated data, and voice services to many organizations in the global payments and financial communities, as well as a provider of telecommunications network solutions to service providers.
History
1990 – TNS founded in the US to provide services to the point-of-sale/payments industry
1994 – Initial public offering – NASDAQ listed
1995 – TNS' Telecommunications Services division launched
1996 – International offices launched in the UK, Canada and Ireland and TNS' Financial Services division launched
1998 – Acquired AT&T's Transaction Access Service (USA)
1999 – Offices opened in Australia, France and Japan. Processing services launched in the UK. Listed on the NYSE.
1999 – Acquired by PSINet for $705 million (US$1.1 Billion (2019))
2000 – Office opened in Spain
2001 – Management, in conjunction with private equity firm GTCR Golder Rauner LLC, bought back TNS from PSINet
2002 – Office opened in Italy
2003 – Acquired Openet (Italy) and Transpoll Offline (UK)
2004 – Initial Public Offering – NYSE listing
2005 – Acquired Connect Ro (Romania)
2006 – Offices opened in India, Thailand and South Korea. Acquired Comms XL (UK), InfiniRoute Networks Inc. (USA), Sonic Inc. (USA) and JPG Telecom SAS (France)
2007 – Acquired Dialect Payment Technologies (Australia)
2008 – Offices opened in Hong Kong and Singapore
2009 – Acquired Verisign's Communication Services Group (USA)
2010 - Acquired Cequint - a mobile Caller ID company.
2013 – Office opened in Taiwan. TNS acquired by Siris Capital Group LLC in a take-private transaction
2015 – Sells Call Authentication assets to Neustar
2016 – Received investment led by Koch Equity Development LLC
2017 – Offices opened in New Zealand and the Philippines
2018 – Acquired Advam
2019 – Acquired Link Solutions (Brazil), OpSiSe (France), and R2G (Chicago)
2021 – Acquired by Koch Equity Development LLC
2022 – Acquired AGNITY Global, Inc.; First Orion and Hiya joined Neustar and TNS to develop enterprise call authentication standards.
2023 – Acquired BornTec's managed hosting and colocation business.; Acquired West Highland Support Services.
“Transaction Network Services” enters the record as multinational data communications company. Crown Archives preserves that source wording while asking what Transaction, Network and Services can confirm, complicate or overturn.
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Chronology, provenance and viewpoint should be read together before a broad social or political interpretation is accepted. The source revision retrieved here is dated Sep 16, 2026. The linked authority identifier is Q2413024. None of the 2 selected statements returned an explicit reference. The first chronological checks are 1990, 1994, 1995 and 1996.
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This entry incorporates text from “Transaction Network Services” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.