Tim Lyle has become managing director of Tenon Livingstone Guarantee, the UK mid-market corporate finance firm.

Lyle was previously a partner at Livingstone Guarantee, which was taken over by Tenon earlier this year. At the time of the takeover, several other corporate finance teams and firms were also acquired by Tenon. Lyle joined the firm in 1989. He is supported by a management board of five senior representatives within the firm. The board reports to Ian Buckley, chief executive of Tenon. Barrie Pearson, who founded Livingstone Guarantee and ran the firm before its acquisition, has announced he is reducing his workload, and will work just three days a week.