Adelaide firm Finlaysons has added senior insurance and workplace lawyer Guy Biddle as a partner to the firm's workplace practice.

Biddle joins Finlaysons from Donaldson Walsh Lawyers, bringing more than 20 years of experience managing workplace claims involving injury and industrial issues as well as liability claims for businesses and insurers.

During his career at firms in South Australia and Queensland, Biddle has worked with businesses, insurers and local government on occupational health and safety, workers' compensation, personal injury and industrial relations matters.