Vodafone has completed a review of its legal panel, with DLA Piper and Eversheds Sutherland coming off the seven-firm roster.

Squire Patton Boggs and Wiggin have been added to the panel alongside existing advisers Slaughter and May, Linklaters, Hogan Lovells, Norton Rose Fulbright and Osborne Clarke (OC).

The panel has no fixed time period, but is likely to remain unchanged for a period of three years. The review was run by general counsel and company secretary Rosemary Martin.

According to a Vodafone spokesperson, the focus of the panel review was on innovation and "the digitalisation of legal services".

The panel covers work for Vodafone Group, Vodafone's UK business and Vodafone Group Enterprise, which provides telecoms services to large corporations, although the company is known to go off-panel for some specialist work.

In a statement, Vodafone said: "Vodafone has now completed its legal panel review, the focus of which was on innovation and the digitalisation of legal services. The Vodafone Group, Group Enterprise and UK Legal teams are delighted that Hogan Lovells, Linklaters, Norton Rose Fulbright, Osborne Clarke, Slaughter and May, Squire Patton Boggs and Wiggin will form part of Vodafone's refreshed legal panel."

The panel was previously reviewed in 2014, a process which was led by Martin and Vodafone Global Enterprise legal director Kerry Phillip.

Linklaters, Slaughters, Hogan Lovells, Norton Rose, DLA Piper and OC have all been part of the panel since 2011, with Eversheds joining the line-up in the last review in 2014.

The telecoms giant's main corporate advisers are Slaughters – which led on its $130bn sale of its stake in Verizon in 2014 – and Linklaters.