Tony Marks is Managing Director of 20:20 Business Insight, the UK's second largest specialist Project Management Training and Consultancy company, with offices in Scotland, England, The United States and The Czech Republic and partners in Scandinavia, West Africa and the Middle East. He has 30 years' experience in project management - delivering high value projects, consulting and teaching in a wide range of sectors including utilities, nuclear, oil & gas, engineering, construction, I.T. and telecoms.

Tony Marks is accredited by all three professional bodies including The Project Management Institute (PMI)'s 'Project Management Professional' credential, The Association for Project Management (APM)'s 'APM Professional', and The APM Group's 'Prince 2 Practitioner'. He is also a Fellow of The Association for Project Management (The UK body of an international association covering 55 countries), a Fellow of The Chartered Management Institute, a Fellow of The Institute for Leadership Management, and a member of The Project Management Institute.

Tony Marks is a lecturer and examiner for The University of Aberdeen on their MSc in Project Management course. He has written the Project Management Handbook for NHS Capital Projects and edited Project Management Handbooks for a number of commercial companies.