He will take up his new job at the beginning of April following his departure from the Omnicom-owned network at the end of last year.
The Brewery, launched last month by a group of former senior managers from the design company Fitch, will offer clients independent strategic advice. It will not produce above-the-line advertising, but establish relations with preferred partners.
The appointment reunites Ingram with Paul Stead, The Brewery's chairman and a former Fitch Worldwide chief executive. The pair worked together on the Motorola business when Ingram was at Abbott Mead Vickers BBDO.
A former Saatchi & Saatchi staffer, Ingram joined AMV in 1986. He was the head of client services at the agency and ran its BT business before going on to take charge of BBDO's pan-European Mars account.
Ingram claimed The Brewery was well equipped for a changing communications world in which technology had negated the need for extensive networks and where TV's position as the dominant medium was in decline. "I've not seen any evidence of networks adapting to new markets," he said.
He dismissed suggestions that his above-the-line background might inhibit him at The Brewery. "Only about 35 per cent of BBDO Europe's revenue comes from above-the-line activity," he added.