Ecselis | Performance Marketing Agency



As the performance marketing agency of Havas Group, Ecselis is a data-driven agency focused on results. We help brands understand and navigate the complex performance marketing world, delivering simplicity across owned, earned, shared and paid performance channels. 

Our team of over 320 specialists in 38 markets is passionate about performance and optimization. We offer channel expertise across SEO, paid search, affiliate marketing, performance display, conversion optimization and dynamic creative optimization, as well as multi-channel products including Ecselis Performance, Ecselis Traffic in Store, and Ecselis Engagement. By bundling media, technology and data, we enable the creation of new multi-channel performance products that deliver precisely targeted solutions for our clients. We are also a Google Partner agency and all paid search staff are Google AdWords certified.

Some of our Clients

Audley AXA BBC East Midlands Trains Mitchells and Butlers RED

Services and People


Search Engine Optimisation
Paid Search
Lead Gen


Bryn Tweedale
Group Business Director, Planning

Tobit Michael
Group Business Director, Paid Performance

Lauren Jones
Group Business Director - Owned and Earned Media

Where to find us

Find us at HKX,
we'll be at:


Contact & Careers

Contact Us

Tracey Barber
Group CMO


For Havas Group career opportunities click here