... which includes the naming rights to the stadium, which will now be known as Gelder Group Sincil Bank Stadium.
The deal, which will run for the duration of season 2013/14, comes as the Gelder Group celebrates its 25th year in business and the Club is looking forward to working closely with a company of Gelder's standing within the business community, both local and national.
"I'm delighted that the Gelder Group name will be associated with our local football club in this, our 25th year of business," said Steve Gelder MBE, Managing Director of the Gelder Group.
"Whilst we have been involved with the Club in the past, this is by far the biggest partnership we've had and it goes without saying that I wish Gary Simpson, his players and everyone connected with the Imps every success for the coming season.
"Our staff and their families have throughly enjoyed their visits to games over the years and I'm sure this season will be no different, especially at the 'Gelder Day' which will no doubt prove even more popular as it will take place at Gelder Group Sincil Bank Stadium."
Commercial Manager Russell Moore added: "Whilst Gary has been busy with on-field signings, this latest off-field acquisition is just as important to the Club and comes as a culmination of a great deal of hard work behind the scenes in the build-up to the new campaign.
"This agreement on top of all other recent sponsorship announcements truly shows the businesses of Lincolnshire are supporting Lincoln City Football Club.
"Following a meeting with Steve Gelder, the Club's suggestion of stadium sponsorship to coincide with the Gelder Group's 25th anniversary, it did not take long to reach an agreement.
"Everyone at the Club is looking forward to building on the great relationship we already share with Steve and the Gelder Group and, in wishing them another success filled 25 years in business, I would like to thank Steve and his staff for their support of the Imps."
If you're interested in discussing sponsorship or advertising opportunities with the Football Club please contact Russell Moore on 01522 563783, 07971 122234 or email firstname.lastname@example.org