Written by Victoria Macleod for the the Research Quality Association (RQA)’s January 2022 QUASAR issue, this article celebrates the 20-year success of Tower Mains and highlights the careers of co-founders Dr Andrew and Fiona Waddell. It explores their pioneering contributions to Quality Assurance, clinical research, and Good Laboratory Practice (GLP), as well as the company’s growth into a respected consultancy supporting quality systems, audits, and training across the life sciences industry. The piece also emphasises the importance of continuous improvement, staff development, adaptability, and maintaining a strong workplace culture through changing industry challenges, including the pandemic.