Whitaker joins CCB board members David Cole and Paul Seabrook as non-exec chairman and shareholder.
The firm was recently appointed to run the DMA's Financial Services Tracking Study. Its retained clients include Publicis, General Motors, Grey and Euro Direct.
Whitaker's surprise exit from DLG at the end of January gave rise to speculation that he had fallen out with DLG's new owners, DM plc.
DLG was the fastest growing DM business thanks to an acquisition plan instigated by Whitaker when he became CEO in 2005.
But DLG was direct marketing's most high profile victim of the credit crunch when its equity partner, Icelandic private investor Kaupthing Singer & Friedlander (KSF), went into administration last October. It forced DLG to seek new financing with DM plc.
Whitaker joined DLG in 2004. He spear-headed DLG's aggressive growth, leading the original management buyout of Data Locator Group in March 2006 from founder Simon Johnson.
David Cole, managing director and former head of database marketing at the Telegraph Group said: "We are really excited to have secured Jeremy's involvement to help us to develop the business even faster. CCB fast.MAP bridges research, database marketing and direct marketing and Jeremy's strategic skills, contact network and leadership experience as the former head of DLG and Brann will prove invaluable to us as our service and client range develops further."
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DLG's Whitaker back to chair research firm CCB
LONDON - Jeremy Whitaker, the high-profile chief executive of DLG who exited the data company last January, has re-emerged to become non-executive chairman of online researchers CCB fast.MAP.