100th Monkey Media Acquires Brandvein Aaranson Public Relations After 30-Year Partnership

100th Monkey Media has acquired Brandvein Aaranson Public Relations, a St. Louis agency focused on nonprofits and philanthropically minded companies. PRLog announced the acquisition on November 11, 2026. The price was not disclosed. The deal builds on a professional partnership between the two agencies that spans more than three decades.

100th Monkey Media's Acquisition of Brandvein Aaranson

Brandvein Aaranson provides public relations and marketing for nonprofit organizations and companies with a philanthropic foundation. 100th Monkey Media is a St. Louis-based company founded in 2010 whose work includes social media and digital marketing. Mich Hancock, founder and CEO of 100th Monkey, is also co-founder and license holder for TEDxSt Louis.

Under the new ownership, Hancock will manage all new and existing client opportunities. Rochelle Brandvein, owner of Brandvein Aaranson, said the decision to hand over the agency she built over 36 years was personal. "After 36 years of building this agency, finding the right person to carry it forward was deeply personal," Brandvein said. "Mich and I have worked together for more than three decades, and I trust her to care for our clients with the same dedication and personal attention they've come to expect."

Brandvein added that she is proud of what the agency has built and excited to begin her next chapter knowing clients are in capable hands. Hancock said the connection with Brandvein made the deal meaningful. "What makes this especially meaningful is Rochelle. She's spent more than 36 years building something truly special, and I'm incredibly honored that she's trusting us to carry it forward," Hancock said. She added that she loves what Brandvein created and what 100th Monkey has built, and looks forward to bringing the two together.

Brandvein Aaranson's Client Continuity Under Hancock

The acquisition continues Brandvein Aaranson's focus on nonprofits and philanthropically minded companies, with Hancock overseeing all client opportunities. Hancock said the combined agencies are growing in new ways and imagining what comes next. More information about 100th Monkey is available on the company's website.