Ulster have announced that Ravenhill will be known as Kingspan Stadium from next season after they agreed a ten-year agreement with the company.
Kingspan Group, the world's leading provider of sustainable building materials, is to invest in rugby at all levels within the PRO12 province.
"We're delighted to have extended our partnership with Kingspan, one of Ulster's most successful international companies, and to have secured a stadium naming rights partner for the first time," said Ulster Rugby chief executive Shane Logan.
"This is a landmark deal and one that will have considerable benefits for all of rugby in Ulster.
"I want to thank Kingspan for its long-term commitment to the Province and I look forward to many more special rugby occasions, from school and club finals to European match nights, at Kingspan Stadium in the future."