Public Policy Holding Co Inc (LSE: PPHC) is a US-based, UK-listed holding company of a group of government relations, advocacy, and strategic communications firms. Serving clients across healthcare, energy, technology, and financial services, PPHC provides bipartisan lobbying and public affairs services to help organisations navigate complex policy landscapes. Its scalable model and network of specialised agencies make it one of the largest independent lobbying groups in Washington, D.C. As regulation and government influence increase across sectors, the company’s expertise in stakeholder engagement and legislative strategy remains in high demand.