Former Linklaters managing partner Tony Angel has joined the board of UK legal artificial intelligence (AI) startup TagDox.

Angel, who was managing partner of Linklaters between 1998 and 2007 and global co-chair of DLA Piper between 2011 and 2015, has joined the startup's advisory board alongside former Linklaters head of knowledge Suzanne Fine, now director of professional development at Lex Mundi, and Mark Adelson, who was formerly chief credit officer and executive managing director at credit rating agency Standard & Poor's (S&P).

Both are former colleagues of Angel's – Fine at Linklaters and Adelson at S&P, where Angel was head of EMEA between 2008 and 2010.

TagDox is a London-based startup that aims to use AI to make document review more efficient. It was founded in 2014 by Eli Luzac, a former Moody's analyst and director at investment company SCIO Capital.

Since stepping down from DLA, Angel has also taken on the position of chair of Knightsville Bioresearch and is a visiting professor of practice at Cass Business School.

In 2011, he joined legacy SJ Berwin as a non-executive director – a role that saw him advise the firm's partnership board on strategy and execution.

A series of top law firms have recently signed agreements with AI businesses to provide them with technology to make processes such as document review more efficient.

Freshfields Bruckhaus Deringer, Clifford Chance and DLA Piper all agreed deals this year to work with technology company Kira Systems, which produces machine-learning software for document review, while Linklaters, Travers Smith and Dentons are all working with RAVN Systems.

Slaughter and May, meanwhile, has been working with Luminance Technologies to test and pilot its AI software, which aims to simplify document review for due diligence on M&A transactions.