PRWeek revealed in July that former Conservative Party head of policy Worth was leaving his job as leading partner at Quiller Consultants to launch the company.
Faith’s move is unlikely to be disruptive to Policy Exchange as WPI will provide comms support to the think-tank, where he has worked for three years after six as an associate director at Luther Pendragon.
WPI is positioned as combining expert policy analysis and events with high-end political risk and media advice, according to Faith.
"Businesses are entering an era of great political uncertainty," added Worth. "With an election around the corner and uncertainty over Europe and the Eurozone, sitting on the sidelines is no longer an option.
"Policymakers want thoughtful and practical ideas from experts in business on how to tackle the big policy challenges. Westminster Policy Institute aims to fill this gap."