21st century
The firm continued to expand through acquisitions in the 2000s, including the acquisition of a portion of Argentine company Vox Consulting in 2000,[22] Miami-based public relations agency SAMCOR in 2002,[23] and a majority ownership of the Hong Kong-based Rikes Communications in 2008.[24]
In 2009, the firm opened its first office in Nairobi in partnership with Kenyan company Scangroup.[25] In 2010, the company opened three new offices in China[26] as well as new offices in India and Colombia.[27][28]
In January 2011, Hill & Knowlton announced a merger with Public Strategies, another WPP company founded in Austin, Texas in 1988.[16][29][30][31] In December 2011, the firm was rebranded as "Hill+Knowlton Strategies."[32][33] The company has since been rebranded to "Hill & Knowlton"[34] before joining the Burson umbrella.[35]
Jack Martin, founder of Public Strategies, oversaw this rebranded company from 2011 until 2019. He was succeeded by AnnaMaria DeSalva.[36][37][38]
In August 2021, Hill & Knowlton China, the Chinese arm of the company, announced new strategic advisory services to help local businesses with environmentally friendly business strategies. The new services were part of Hill & Knowlton's support for the COP15 (UN Biodiversity) conference, which was held in Kunming, China, in October 2021.[39]
In October 2022, the firm became the U.S. public relations agency of record for Glanbia Performance Nutrition.[40][41] In 2023, the company was chosen by Costa Coffee to improve consumer communications across the UK.[42] Costa Coffee had 2700 stores across the UK and 1100 outlets in 45 countries.[42] Hill & Knowlton Strategies was also selected to provide PR and social media for Hill's Pet Nutrition.[43]
From 2021 to 2023, Hill & Knowlton grew more than 25%.[44] In September 2022, the firm acquired JeffreyGroup. The company is based in Miami but has offices in Mexico, Brazil, and Argentina.[45][46] This expanded Hill & Knowlton's presence in Latin America, where it already owned Grupo Ideal, based in Brazil.[45]
In March 2023, WPP acquired Germany based healthcare public relations agency 3K Agentur für Kommunikation.[44]
In November 2023, Hill & Knowlton launched its global intelligence and technology unit. In the same month, Hill & Knowlton also announced its partnership with Pendulum Intelligence to produce a tool that will help clients combat disinformation.[47]