Published: March 10, 2026 at 8:39 am
Embryo has completed its third acquisition in less than a year following a deal for creative and digital agency Serotonin.
The deal follows acquisitions of Making You Content in April 2025 and Novaro in November 2025.
Serotonin was founded in 2019 by Dom Carter and Clair Heaviside and is best known for its work with major eCommerce players such as ASSOS of Switzerland, New & Lingwood, as well as national property developers including Legal & General and Grainger plc.
Embryo’s CEO Ross Green said: “By bringing Serotonin into Embryo, we’re strengthening our ability to deliver even greater impact for our clients, combining Embryo’s strategy-led approach with Serotonin’s creative excellence, media capabilities and strong client base across EMEA.
“Most importantly, this acquisition is about people. Dom and Clair will be joining the Embryo board, and we welcome the talented Serotonin team, who have built something special over the past six years, and we’re incredibly excited to welcome them to Embryo as we enter this next chapter together.
“Manchester continues to be one of the most exciting and ambitious digital hubs in the UK, and this move reinforces our commitment to building one of the UK’s leading performance-driven agencies.”
As part of the transition, Heaviside will become chief creative officer and Carter will take on the role of chief strategy officer.