The firm, which has several offices across London, carries out a wide range of commercial, Not For Profit and private client work.
Jonathan Thornton, managing partner, says the switch was prompted by its existing legal software being discontinued.
“We engaged Lights-On Consulting with a view to replacing our incumbent system but with the possibility of integrating it with our document management system,” he says.
“At the start of the process there was probably the assumption that because we are a ‘big’ firm, we would choose one of the larger legal software suppliers.
“However it soon became clear that the SOS team spoke our language, as people who had evidently worked at the ‘sharp end’, in a solicitors practice.
“SOS Connect  is a product designed by solicitors for solicitors. It is straightforward and honest about what it does and doesn’t do – there are not too many ‘bells and whistles’ so it is perfect for a fee earner working at the coalface.”
Graham Colbourne, managing director of SOS, said: “Russell Cooke Solicitors’ decision is testament to the fact that SOS Connect can be an ideal fit for larger legal practices. We look forward to working with the firm on the roll-out process.”