Arc and McWilliams in 20m merger

Arc Advertising is to buy in the McWilliams Partnership, in a merger expected to create a 20m billing agency.

Peter Steadman will remain chief executive of Arc. John McWilliams, chairman and creative partner of the McWilliams Partnership, is likely to become managing director of the combined agency, which will continue to be called Arc.

Arc’s main clients include Thames Water Authority, Zetter Pools and Gruner&Jahr, with industry estimates putting total agency billings at 15m. The agency recently created the TV branding campaign to announce the merger of Royal Insurance and Sun Alliance, forming the new company Royal Sun Alliance. Earlier this year the agency appointed Will Hamilton as its marketing director, after Tim Coton left to join FCB.

McWilliams set up the McWilliams Partnership four years ago. Its main clients are Debonair Airways and Times Supplements, with total billings of between 5m and 6m.

Recent successes include winning the account for the youth cable channel Rapture, but the agency has also lost clients, including Liberty Radio in August.

There are thought to be no account conflicts and no redundancies are expected as a result of the merger.

No one from Arc or the McWilliams Partnership was available for comment.

Latest from Marketing Week


Access Marketing Week’s wealth of insight, analysis and opinion that will help you do your job better.

Register and receive the best content from the only UK title 100% dedicated to serving marketers' needs.

We’ll ask you just a few questions about what you do and where you work. The more we know about our visitors, the better and more relevant content we can provide for them. And, yes, knowing our audience better helps us find commercial partners too. Don't worry, we won't share your information with other parties, unless you give us permission to do so.

Register now


Our award winning editorial team (PPA Digital Brand of the Year) ask the big questions about the biggest issues on everything from strategy through to execution to help you navigate the fast moving modern marketing landscape.


From the opportunities and challenges of emerging technology to the need for greater effectiveness, from the challenge of measurement to building a marketing team fit for the future, we are your guide.


Information, inspiration and advice from the marketing world and beyond that will help you develop as a marketer and as a leader.

Having problems?

Contact us on +44 (0)20 7292 3703 or email

If you are looking for our Jobs site, please click here