Hill & Knowlton is a member of the WPP group and was the first Public Relations agency ever founded. Today it is one of the leading global communications agencies, serving the clients with 81 offices in 43 countries and employing over 2,200 people. Hill & Knowlton's client list includes nearly the half of the Fortune 500 companies and H&K has leading offices in the world's largest economic and political centers.

The Budapest office - founded in 1991 - was the first multinational PR agency in Hungary after the political change, and today is one of the leading communication agencies in Hungary. The agency's key practice areas are Reputation Management, Corporate and Brand Communication, CSR, Issue Management, Public Affairs, Crisis Communication and Sports Marketing.

Hill & Knowlton won the Golden Lollipop award and was placed number one in Kreativ magazines PR Rapid Date Contest in 2008. In 2009 HK won the Green Rapid Date contest and the PR Day Rapid Date Contest as well.