O2 Investment Partners has taken an investment position in BerlinRosen to power its next phase of growth.

Jonathan Rosen and Valerie Berlin will continue to helm the New York-based shop.

They said the partnership with O2 will fund opportunities for “organic and inorganic growth in new verticals, geographies and services to deliver greater impact at a greater scale for clients.”

Sean Darin of O2 credited BerlinRosen for “reinventing the agency model for the 21st century” due to its understanding of the rapidly changing issues that confront leaders, organizations and brands and its ability to anticipate cultural shifts.

BerlinRosen has more than 270 staffers. It counsels Samsung, UNICEF USA, Singapore Airlines, Color of Change, Cornell Tech, Brookfield and GLAAD.

O2 is based in Bloomfield Hills, MI. Its investment portfolio includes First Class Air Support, Packaging Concepts and Design, Frontier Dental Laboratories, Mantis Innovation Group, unWired Broadband, Greco Aluminum Railings and Alpha Precision Group.