In a statement on their website, the League said: "The Kent League is very sorry to see such a long-standing relationship come to an end.
"The Roberts Family supported the League firstly as Winstonlead and more recently as Go Travel, in what has been a real partnership for Kent Football.
"However, the league understand that today's world is a very different one from both sponsorship and a business point of view."
The Kent Football League is the Senior League in the county of Kent, it's clubs range from the North West of the county and South East London to the coastal teams such as Deal Town (FA Vase winners in 2000) across to Hythe.
In the past ten years it has supported the progression of such clubs as Folkestone Invicta, Tonbridge Angels, Sittingbourne and more recently Chatham Town, Dartford and Cray Wanderers, in their efforts to reach the higher levels of non-league football.
Following this announcement the league are actively seeking sponsors for all or part of the League and cup competitions. Interested parties should contact:
Roy Vinter, Secretary 01227 730 457
Denise Richmond, Chair 020 8378 5042
