Henderson MacKenzie Ltd | 71 followers on LinkedIn. ​Headhunting, M&A, Business Growth, Succession Planning and Exit Strategies for UK Accountancy Firms | Henderson MacKenzie provides a high quality executive search and selection service to professional firms and entrepreneurial businesses across the UK. Henderson MacKenzie provides bespoke services that improve clients’ business performance through the search and selection of leadership talent. We provide talent hiring services including headhunting, recruitment process outsourcing, talent acquisition consulting and project-based recruitment.