
Brands including Sainsbury's, Bupa, Pizza Hut, Seat, Little Chef and Vue Cinemas have already signed up as sponsors for the week. The Mail on Sunday, IPC Connect's magazine titles and Capital Shopping Centres have been named official media partners.
The event, set to run from 25-31 May, has attracted the support of high-profile politicians such as Gordon Brown, David Cameron and Boris Johnson.
National Family Week, was devised by Henley Media Group managing director Nick Henry, while Ed Balls, the minister for Children, Schools and Families, has been holding stakeholder meetings.
The event will also be supported by organisations including the National Lottery, Football Association and the armed forces, and celebrities such as Olympic gold medallist Rebecca Adlington and TV presenters Richard and Judy.
Henry said that, in addition to a title sponsor, the event is seeking second-tier partners in the food, FMCG and telecoms sectors that will fit the family image. He is also keen to sign up a radio partner.
Marketing activity for the week will range from events at shopping centres, promotional price offers and a Sainsbury's-backed attempt to break the world record for the biggest simultaneous picnic.