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Matthieu Roussellier Joins Prosek Partners in London as Managing Director, Bolstering Global Private Equity and Alternatives Offering

London, 9 February 2023 — Prosek Partners, a leading integrated communications and marketing firm, today announced Matthieu Roussellier has joined the firm as a Managing Director in its London office.  

Matthieu joins from PAI Partners, a European private equity firm, where he served as Head of Communications. Prior to PAI, he held senior in-house and advisory communications roles, including at global investment firm Permira, law firm Latham & Watkins and Greenbrook Communications. 

“Matthieu’s deep private markets background, combined with his experience in both the London and European markets, makes him an excellent addition to Prosek,” said Managing Partner Jen Prosek. “His track record of building integrated communications programmes for private markets firms as well as leading entrepreneurial teams will be a perfect fit for the strong team we have in London. We’re thrilled that he’s joined us as our European offering continues to grow.” 

“I am very excited to be joining Prosek in London to help the team further expand its extensive private markets practice globally,” said Roussellier. “In an ever-more crowded space, there is a real need for differentiation and brand-building, and Prosek is set up to deliver just that. The firm offers a unique blend of communications, branding and marketing capabilities and I very much look forward to delivering truly integrated advice for our clients.” 

In 2022, Prosek was named Best PR & Communications Firm at both the Private Equity Wire European Awards and Hedgeweek European Awards. Matthieu’s hire follows a string of recent investments into Prosek’s private markets and special situations practice, including the addition of former Finsbury Managing Director Phil Walters and former Finsbury Account Director Andrew Pantaleo last year.

About Prosek Partners
Prosek Partners builds – and protects – the top brands in business. We are a certified Woman-Owned Business and among the largest independent, integrated communications and marketing firms globally. Specialising in providing a full range of communications solutions to financial and professional services companies, Prosek delivers business impact through an unexpected level of passion, creativity and marketing savvy. Services include media relations, thought leadership, social and digital media, public affairs, investor relations, financial communications, transaction services, crisis communications and issues management, content creation, conference support, publishing, media training and more. Prosek's strategic branding and integrated marketing arm – Prophecy by Prosek – offers brand strategy, award-winning design, digital and advertising capabilities. Prosek has been named PRovoke’s “Global and North American Corporate/Financial Agency of the Year” and a top-five global M&A and shareholder activism agency. For more information. please visit or follow the firm on LinkedIn.

Maria Jose Gonzalez
Prosek Partners