Broker Arthur J Gallagher has replaced several key members of Heath Lambert’s board, according to Companies House filings.

Heath Lambert non-executive chairman Keith Hamill, finance director Nigel Thomas, general counsel William Bloomer and non-executive director Jeffrey Hume have stepped down from Heath Lambert's board.

Hamill and Hume, as non-executives, have left the company altogether following Gallagher's purchase of Heath Lambert last month, while Thomas and Bloomer retain their positions as finance director and general counsel respectively.

Meanwhile, Arthur J Gallagher International chief executive David Ross, finance director Keith Barton and chief risk officer Sarah Dalgarmo have been appointed directors.

A Heath Lambert spokesman said a formal structure for the combined Gallagher International/Heath Lambert entity has yet to be announced.

Gallagher completed the acquisition of Heath Lambert on 13 May, paying £97m for the firm.