![]() |
| Martin Sorrell |
S4 Capital chief Martin Sorrell has acquired Los Angeles ad tech company TheoremOne as the WPP founder returns to the acquisition trail in the aftermath of his firm's accounting snafu.
TheorumOne advises clients on product strategy, engineering, design and culture, then partners with them to build and launch technology-driven solutions to their most complex problems.
It was launched in 2007 by Will Jessup and has been led since 2017 by Brady Brim-DeForest.
The company has more than 370 staffers and clients such as American Express, AT&T, Intel, Starbucks and Caterpillar. North America accounts for 70 percent of its business.
TheoremOne will operate autonomously and its leadership team will remain in place.
The combination with S4 Capital provides TheoremOne access to new capabilities including those in the media, content, data and analytics verticals.
Sorrell said S4 Capital is "building a genuinely integrated offer for our clients comprising best-in-class technology services combined with content and data & digital media expertise."
He said the vision and ambition of Theorem's team "will no doubt be a great fit for us."


Publicis Groupe enters into a definitive agreement to acquire global sports and culture-first agency 160over90.
Public Policy Holding Company has acquired London’s Westminster Policy Partners Limited to expand its economic-led analysis and research-based advocacy communications capability.
Motion, a Chicago-based brand growth agency, acquires video-forward marketing and communications firm AKA Media Partners, which has been in business since 1998.
Declan Kelly's Consello has acquired Morpheus Risk, a UK-based risk and threat assessment firm.
Ruder Finn has acquired Missouri Creative, a 30-member visual storytelling, design and experience-led brand activation firm based in London.



