Appointment of Chief Administrative Officer

Public Policy Holding Company, Inc.

("PPHC", the "Group" or the "Company")

Appointment of Chief Administrative Officer

Public Policy Holding Company, Inc., (Nasdaq: PPHC) (AIM: PPHC), a leading global strategic communications provider offering a comprehensive range of advisory services in the areas of government relations, public affairs, and corporate communications, announces the appointment of Matthew Mazzanti as Chief Administrative Officer ("CAO"), effective 20 March 2026.

Matthew is promoted from his current position, where he has led the Group's corporate communications and investor relations functions and supported corporate development activities. He has played a central role in a broad range of PPHC initiatives, including providing support to the senior leadership team and member firm leadership.

As CAO, Matthew will continue to report directly to Stewart Hall, Chief Executive Officer. He will maintain his existing responsibilities while taking on broader responsibility for supporting the execution of the Company's strategic priorities, strengthening coordination throughout the holding company, and driving operational efficiency across the platform.

Matthew joined Crossroads Strategies, one of the Group's founding member firms, seven years ago before progressing to a cross-functional position with PPHC. He was involved in the Company's AIM IPO in 2021 and played a key role in the recent listing on the Nasdaq Global Market.

The position of Chief Administrative Officer has been vacant since the retirement of Bill Chess in July 2024.

Stewart Hall, CEO of PPHC, commented:

"As PPHC continues to expand globally and enhance its suite of services and portfolio companies, the CAO position is increasingly important for the Company. Matthew has played critical roles going back to our AIM listing over four years ago in investor relations, intercompany relations, talent management, M&A, and business development. His knowledge of each of our member companies, their services and people is unmatched, and I am pleased to elevate him to the position with the Board's approval. Filling the CAO position will allow us to continue to drive intercompany synergies and support our number one asset - our talented and skilled practitioners across the globe."

Enquiries

About PPHC

Incorporated in 2014, PPHC is a global strategic communications platform that supports clients in enhancing and defending their reputations, advancing policy objectives, managing regulatory risk, and engaging with federal and state-level policymakers, stakeholders, media, and the public.

Engaged by approximately 1,400 clients, including companies, trade associations and non-governmental organizations, PPHC is active in all major sectors of the economy, including healthcare and pharmaceuticals, financial services, energy, technology, telecoms and transportation.

With operations across 18 offices in the United States and internationally, PPHC's services include government relations, public affairs and corporate communications, research and analytics, digital advocacy campaigning, and compliance support. The Company's shares are admitted to trading on the Nasdaq Global Market and on AIM, a market operated by the London Stock Exchange, under the ticker symbol "PPHC".

For more information, visit www.pphcompany.com.