Stirrat joins from online greetings card company where he looked after UK sales and marketing operations. Prior to that, he spent six years at Advertising.com, where he helped develop the international sales team.
At Clash-Media, which helps its clients use data to generate sales leads, Sirrat will be responsible for putting new technology in place to help streamline the business procedures and automate digital marketing processes. He will also look at the data analytics services.
Simon Wajcenbeg, CEO of Clash-Media, said: "We are working hard at the moment to secure our position as the number one provider of data solutions that collects and manages consumer data on a global level.
"The investment we place on recruiting the best possible industry executives is key to our international growth plan and I am confident that Gavin Stirrat will be a pivotal player in enabling the next business phase."
Clash-Media's clients include 3, Harveys, Hotel Chocolat and Toyota.