The Group expanded in Europe through numerous acquisitions and subsidiaries in Switzerland, Norway, Denmark, Greece, Spain, the Netherlands and Finland.

[17] In 2014, Teleperformance acquired Aegis USA Inc., an outsourcing and technology company in the United States, the Philippines and Costa Rica.

[18] In August 2016 Teleperformance purchased California-based LanguageLine Solutions LLC for $1.52 billion from a US-based private equity firm, Abry Partners.

[19] Teleperformance secured multiple United Kingdom government and NHS contracts to operate support services for the public during the COVID-19 pandemic.

[28][29] Co-founder Daniel Julien remained as chairman of the board, and Paulo César Salles Vasques was announced as the new chief executive officer of the group.

[33]In August 2024, Olivier Rigaudy, Agustin Grisanti and Scott Klein were appointed as deputy CEOs,[34] and when Singh departed in October 2024, his role was assumed by Thomas Mackenbrock.

[40] In 2008 a class action lawsuit was filed against Salt Lake City-based Teleperformance USA seeking unpaid wages for employees, alleging a violation of the Fair Labor Standards Act.

Due to COVID-19 restrictions, workers in the Philippines, including those supporting Amazon's Ring camera contract, had to sleep at their work spaces and were unable to meet social distancing requirements.

[50][51] In 2021, Teleperformance employees who work from home were sent contract addendums that would allow monitoring by AI-powered cameras to ensure compliance with security policies and to spot check for home-working infractions.

[61] In December 2022, the subsidiary received independent certification from Bureau Veritas on the "use and inclusion of the international standard ISO 26000 in the field of social responsibility within its operations in Colombia.

[68] After an investigation by Forbes reported the company retained explicit material, Teleperformance and TikTok were criticized by the United States Senate Committee on Commerce and by shareholders.

[70][67] Following the announcement, UNI Global Union released a statement, stating "we believe that Teleperformance's decision to re-enter full-service content moderation is a positive step.