New name: Publicis Omnicom Group
Leadership: John Wren and Maurice Levy, co-CEOs for 30 months. Wren to serve as chief executive afterwards.
Other key players: Bruce Crawford, Omnicom chairman; Elisabeth Badinter, Publicis chairwoman; Randall Weisenburger, Omnicom CFO. Crawford and Badinter to each serve as non-executive chair for one year after deal closes.
Headquarters: The Netherlands, with operations centers in New York and Paris.
Size: Combined $22.7 billion in revenue in 2012; combined market capitalization of $35.1 billion.
Staff: More than 130,000 employees.
Expected approval: Q4 2013 or Q1 2014.
Share structure: Shareholders from Publicis and Omnicom to each hold about 50% of new company's equity.
Trading: Shares to be listed on both the New York Stock Exchange and Euronext Paris.
PR agencies: Cone, FleishmanHillard, Kekst & Co., Ketchum, Marina Maher Communications, Mercury Public Affairs, MSLGroup, Porter Novelli.
Creative, branding, media, and digital shops: BBDO, CDM, DDB, DigitasLBi, Goodby, Silverstein & Partners, Interbrand, Leo Burnett, Publicis Healthcare Communications Group, OMD, Proximity, Publicis Worldwide, Rap, Razorfish, Rosetta, Saatchi & Saatchi, Starcom MediaVest, TBWA, ZenithOptimedia.