Long-term partners of the club Franking Sense® have agreed a new four-year sponsorship of the stadium's South Stand.
In addition to their existing sponsorship deals with the club, the south stand will now be referred to as the Franking Sense® South Stand.
Head of corporate relations Adrian Blackburn said: "It's fantastic to have Franking Sense® on board in such a significant capacity."
"They are long-term partners of the club and it's great to be working with them and moving forward."
Managing Director of Nationwide Franking Sense Ltd Julian Gilbert added: "This is an exciting time for our company in growing our brand. We have plans to open a London office next year and we see our relationship with BWFC as a cornerstone in our marketing plan to reach out to the local and national business community."