The club were officially founded on Wednesday 3 May 2006 by Steve Hart, Darren West, Lee Kirkman and Christine Fairchild.

In 2007 Sharks joined the newly formed South West Division of the Rugby League Conference and it took a last-ditch appeal in the local press to ensure they had enough players to meet the Somerset Vikings in the season opener.

In 2009, Devon Sharks were champions of the RLC South West and went on to meet Northampton Casuals at the Stoop in the national semi-finals.

In 2010, Devon Sharks won the South West Cup beating Somerset Vikings 54-6 in the final held at Tiverton Rugby Club.

Just 10 days later again in Tiverton, Sharks lost the RLC South West Grand Final to East Devon Eagles 37-32.

In 2020 Devon Sharks applied for and were accepted into the Southern Conference the top level of amateur rugby league in the South.