S4 Capital Merges TheoremOne With Media.Monks

S4 Capital has acquired and will merge engineering and design firm TheoremOne with Media.Monks. Executive Chairman Sir Martin Sorrell said the acquisition would provide clients with a “genuinely integrated offer” and that it aims to expand S4’s capabilities and client base in the US.

According to a statement, “The merger will accelerate S4Capital’s transition into a technology and innovation firm, powered by the combination of art and science.”

TheoremOne was founded in 2007 by Will Jessuphas and has since grown to 370 technology experts worldwide from its Los Angeles base, providing digital products, services, and experiences to clients including Intel, Starbucks, and Caterpillar.


“We wanted a partner that could serve both as an accelerant for our growth and that was passionate about helping us disrupt the technology consulting ecosystem — joining forces with Media.Monks and S4Capital means we’ll be taking the field with some of the best talent in the world,” said Brady Brim-DeForest, CEO of TheoremOne.

“The entrepreneurial, growth-focused culture at S4Capital is one where I’m confident our team will feel right at home.”

According to a release from TheoremOne, it will continue to operate autonomously and its leadership team will maintain operational control.


Brim-DeForest will continue to serve as CEO, founder William Jessup as Head of Services, and David Kullmann as Head of Staffing and Embedded Teams. TheoremOne leadership will report directly to S4Capital’s Executive Committee with a broad mandate to continue to build its client base.

“We are thrilled to embark on the next phase of TheoremOne’s growth and development with our partners at Media.Monks and S4Capital,” said Will Jessup, TheoremOne Founder and Head of Services.

The Staff

The Staff

Gettin' it done.

Read more

subscribe to our newsletter & get more brand in your diet


get more brand in your diet

We never share your info,
we only share ours