& Partnerships

We build and partner with companies that aim to transform the future of technology, culture, and society.

Greenbrier Partners advises the world’s leading companies, organizations, and individuals to quickly recover from crises,  execute flawless public affairs, and deliver impactful external communication. Greenbrier provides strategic advice and tactical execution to clients facing complex reputational, legal, political and image challenges, as well as marketing, branding and media opportunities.

Acquired in 2021 and led by Sarah Segal, Segal Communications is a consumer technology and lifestyle agency that helps the world’s leading companies, organizations, and individuals establish their brands, build their reputations, and amplify their stories. The diversity of our experience is as diverse as our client mix. From multinational corporations to disruptive start-ups, the Segal team has a deep understanding of the media landscape and a passion for storytelling.

Founded by Jim Messina and Matt Garretson, Signal Interactive Media is a leading legal media firm that is redefining contemporary class action notice. By merging complex litigation expertise with cutting-edge techniques used in commercial advertising and political organizing, Signal’s notice programs have eliminated inefficiencies of traditional notice plans and increased class member awareness and participation rates in some of the most high-profile class and product liability cases nationwide.

Amplify Media Strategy is a media buying firm that works with TV, cable, radio, and satellite outlets across the country to buy and place commercial advertising. Built around cutting-edge political advertising techniques that are flexible, nimble and respond rapidly to changing conditions, Amplify helps our clients make smarter decisions faster. The nation’s political leadership trusts Amplify to deliver their message – you should, too.


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