Albion have signed a record deal with American Express to be their new shirt sponsor from next season.
The Seagulls are not revealing what the multi-year agreement is worth but chief executive Paul Barber has described it as the biggest in the club's history.
The new kit for 2013-14 will be unveiled later today and will include the American Express logo on the front and back of the first-team's Errea-manufactured shirt.
The American Express brand will also be seen on the club's development, youth and women's team shirts.
Barber said: “American Express has proven to be a fantastic partner as our stadium naming rights holder and key partner of our charitable arm, Albion in the Community.
"To see one of the world's biggest and most respected companies extend its relationship with us in this way, cementing its position as the club's main sponsor, is fantastic news for us.
“This is a significant deal for the club and the biggest in our history. We are extremely grateful to American Express for its continued support.
“I would like to thank them for the invaluable expertise, assistance and advice they have provided to our club since the stadium opened, something that only a truly global brand can offer.”
American Express vice president Mark Roper said: “This is a natural extension of our successful partnerships with the American Express Community Stadium and Albion in the Community charity.
“This new deal further underscores our long-term commitment to the communities of Sussex and surrounding area. We are excited about the future and look forward to supporting the local team as they go from strength to strength.”
The newly-designed kit for 2013-14 will go on sale to fans this summer, although they will be able to pre-order from the club today.