About Us

“Quality that stands the test of time… 25 years and counting”

Founded in 2001 by Dr Andrew Waddell, Tower Mains Ltd is a UK-based, globally operating GxP consultancy now in its 25th year. We provide bespoke audit, consultancy, training, and quality assurance services to the clinical, healthcare, life sciences, biotechnology, medical devices, and scientific industries.

Over the past 25 years, we have worked with more than 450 organisations across GLP, GCP, GMP, GCLP, and non-regulated research, and our diverse team brings over 200 years of combined global regulatory experience spanning healthcare, academia, start-ups, big Pharma, and medical devices.

While audit remains a core foundation of our work, our capabilities have evolved beyond traditional audit provision. By partnering with Tower Mains, you gain access to specialists across the GxPs through a single contract. A named Project Lead is on hand to support your routine needs and connect you directly with our wider expert team, ensuring you receive the right answers when you need them, all delivered with guaranteed Tower Mains quality. Our approach is pragmatic and proportionate, tailored to your current needs while keeping future pathways in view.

We provide support in areas including:

  • QS build, implementation and routine maintenance

  • GXP audits, from single events, annual audit schedules to full vendor oversight programmes

  • Provision of training from bespoke courses to routine updates and everything in between

  • QA oversight from expert ad hoc review and advice to full QA unit and programme support

  • Inspection preparedness and mock inspection

Our services can be delivered remotely or on-site, are fully flexible, and tailored to your organisation’s needs. Whether you require a complete audit programme, strategic QA partnership, inspection preparation, or targeted consultancy, we work collaboratively to ensure quality is embedded, effective, and inspection ready.

What makes Tower Mains different?

We Offer Pragmatic Solutions

Advice, information, and consultancy are always provided with consideration as to how you are likely to use it in your situation, in other words, we offer practical and pragmatic solutions for your issues.

We Are Flexible

With our extensive knowledge, we assess your unique situation and adapt accordingly to meet your needs. We provide services when and where you need them, from short ad hoc projects to long-term QA collaborations.

Our Services Are Tailored to You

We know that one size does not fit all; the objective, scope and methodology of each project are tailored to meet your requirements, offering a personalised service that is highly regarded by our clients.