Field Fisher Waterhouse has been hit by a double partner departure with technology specialist Stewart Room departing for a role at PwC Legal and head of trademarks Mark Holah joining Bird & Bird.

Holah was part of the firm's intellectual property (IP) practice and headed up the firm's trademarks and brand protection group. He will rejoin former Field Fisher franchising partners Mark Abell, Graeme Payne, Victoria Hobbs and IP partner Allan Poulter at Bird & Bird.

It is understood that Holah is coming to the end of a notice period spanning several months. Bird & Bird and Field Fisher declined to comment on his hire.

Holah joined Field Fisher in 2000 before he was made up as partner in 2002.

Room has left Field Fisher to lead PwC Legal's new cyber security practice. His start date is not yet known.

He joined Field Fisher as partner in 2007 from Manchester-based Rowe Cohen, which has since dissolved. Room specialises in data protection, privacy and data security law.

Field Fisher confirmed Room's resignation. A statement from the firm reads: "[Room's departure] is at an early stage and so we are not in a position to comment any further on a departure date. Our technology and outsourcing practice will be expanding its client offering in the North West region in conjunction with our recent merger with Heatons in Manchester.

"Our privacy and information team still remains the largest in the UK and together with our US and EU offices serves global organisations with European privacy concerns."

The privacy team currently has 10 dedicated lawyers including associates and directors.

The firm separately confirmed that four associates have resigned from the privacy team, but added that another four have been recruited.

Meanwhile it has emerged that high-profile IP partner Mark Hodgson retired from the firm at the end of last year. Hodgson managed now-defunct US firm Howrey's City office before joining Field Fisher in 2011.

The firm has recently been hit by a spate of partner departures, including  head of privacy and information law Eduardo Ustaran, who is being held to an 18-month notice period before he can join Hogan Lovells' City office.

The news comes as the firm is preparing to drop the "Waterhouse" part of its name next month as part of a broader rebranding campaign.