Maritz Travel Co. acquired McGettigan Partners in November, creating a powerhouse with $1 billion in combined revenues and more than 6,000 employees. Philadelphia-based McGettigan will operate as a division of St. Louis, Mo.-based Maritz.

Combined, the companies have more than 500 accounts. Maritz serves Fortune 1000 clients; McGettigan specializes in the pharmaceutical, financial, and technology industries.

McGettigan's Boston, Philadelphia, and Indianapolis offices will remain. In the San Francisco area, Maritz will merge its office into the larger offices of McGettigan MeetingsPlus in Walnut Creek.