The global firm – which has offices in Edinburgh, Glasgow and Aberdeen – signed up last year and will now continue as the club’s Official Legal Partner until at least 2022.
Dentons’ senior partner in Scotland Kenneth Shand said: “Dentons is incredibly excited to be extending its sponsorship of Edinburgh Rugby.
“It has been a great experience for us, our clients and our charity partners to enjoy being by the club’s side over the past year, and we look forward to continuing our support. We wish them all the success in the upcoming season.”
Edinburgh Rugby managing director Douglas Struth added: “We’re delighted that Dentons has continued to display their commitment to the club and we’re extremely proud to carry their brand on our playing kit.
“Dentons has a global presence, but also has firm roots and a proven track-record within Edinburgh. It’s fantastic to see them not just invest in the club, but also share our passion and vision for rugby in this city.”