Darlington
Clive Owen & Co LLP was formed in 1983 as a regional Chartered Accountancy practice. In 1984 it moved into its first offices in Cockerton, Darlington . Four years later, the firm moved to former KPMG offices in Blackwell Lane due to the rapid expansion of its client base. Finally, in 1997 it moved to its prestigious head office on Coniscliffe Road, formerly owned by Ropner Plc.

York
In 1994 Terry Doyle, a former KPMG Partner, joined the practice and established Clive Owen & Co LLP's York office at Clifton Moor. As a result of consistent growth in both clients and staff, the York team moved to purpose-built premises on Northminster Business Park in 2001.

Durham
In 1997 the firm’s Durham office was opened to service clients in the Durham and Tyneside area. The Durham team was managed by Gary Ellis, who was consequently promoted to be a Partner the following year. The success of the Durham office saw it outgrow it's base in Aykley Heads in 2007 and move to brand new offices a stone's throw from the A1.