Westfield Health has brought together both Sheffield league clubs to unveil their new-look kits ahead of the 2012/13 season.
The not for profit health insurance provider has extended its sponsorship deal with the clubs. The Westfield name will appear on the front of United's home shirt and Wednesday's yellow away shirt.
Westfield Health Chief Executive Jill Davies said: "We are delighted to continue with our support for both Sheffield clubs. A large number of our policyholders are from Sheffield and the surrounding region and our sponsorship enables us to show that we understand what is important to them.
"Westfield has enjoyed a long and historic partnership with both clubs and we wish both teams well for the coming season."
Sheffield United Commercial Director Steve Coakley said: "We are delighted to continue our long standing relationship with Westfield Health. They have been a key sponsor of the club for more than 50 years, which indicates their fantastic support.
"They are one of the biggest names in the health insurance industry and we are proud to carry the Westfield name on our shirts for the forthcoming season."