Hays Travel will invest an extra £360,000 in local communities across the UK after acquiring all the former Thomas Cook shops.
The travel agency is extending its Community Partnership Scheme to cover the extra 555 premises.
As part of the initiative, each branch receives £500 cash to kick start fundraising for any good cause of their choice.
It has been running since the opening of the first Hays Travel store in Seaham, nearly 40 years ago.
“Our colleagues are encouraged to be creative with their fundraising activities,” Toni Gibson, Hays Travel sales support manager, said.