Clyde & Co is merging with Simpson & Marwick, Scotland's sixth largest firm and the largest insurance litigation firm in the UK.

The firms had confirmed that they were in talks back in May, and RollOnFriday broke the news on Wednesday that the deal had finally been done. S&M's eight UK offices and 45 partners will be rolled into Clydes' 40 global offices and 307 partners, and they'll adopt the larger firm's name. The vote was unanimous on both sides.

S&M, unusually for a Scottish firm, has been doing very well recently. Last year it turned over £28m and saw its profits rise by 12%. And Clyde's insurance rivals Kennedys will be seething at the news, as it failed to pull off a merger with S&M in December 2013 despite 18 months of negotiations and an announcement in September 2013 that the deal was going ahead. Both firms cited "complex reasons" for the collapse but refused to elaborate.

Kennedys looking at Clydes and S&M getting it on. How it might look.

Clydes' Senior Partner, James Burns, said "not only does it firmly position us as the leading insurance-sector firm on both sides of the border but it benefits our clients across all our sectors by giving us a great platform to meet their legal needs in Scotland".