LSS, one of the largest waste management companies in the UK, have taken over the platinum sponsorship of the stand from ADT Fire and Security, who were sponsors for the past two years.
LSS founder and managing director Nigel Woolford said: "I'm delighted to be associated with Leeds United in this way.
"I believe this deal will catapult both parties to new heights. I also think the time is now right for local companies, like ours, to back Leeds United.
"With Ken Bates at the helm I feel the club is more solid and is being run on the right lines."