True Potential Swansea

Mark Sansum, Financial Adviser with True Potential

Walter Road, Swansea
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Mark Sansum, the financial adviser at True Potential Swansea, is a highly experienced Financial Planner and was the founder of Watermark Financial Planning Limited, a successful UK-based financial planning firm. He later took the business forward by joining True Potential Wealth Management, where he continues to support clients in achieving their financial goals.

With over two decades in the financial services industry, Mark has built a strong reputation for delivering expert advice and personalised guidance. His focus has always been on helping individuals and families secure their financial futures with confidence and clarity.

Mark’s journey in financial planning began in the late 1990s when he started working as an Independent Financial Adviser...

It soon became clear to him that clients needed a more bespoke, relationship-led approach to planning. That insight led him to establish Watermark Financial Planning in 2005.

Since then, Mark has remained committed to providing tailored financial solutions that align with each client’s unique needs, values and aspirations. He believes in building lasting relationships based on trust, understanding and straightforward communication—guiding clients through an ever-changing financial landscape.

Mark holds several professional qualifications, including the Advanced Diploma in Financial Planning, and is an active member of the Chartered Insurance Institute and the Personal Finance Society.

Over the years, he has had the privilege of helping countless individuals and families gain peace of mind, financial security and a clearer path to the future they envision.

Outside of work, Mark enjoys travelling and regularly competes in triathlons across Europe.

  • Diploma in Investment Planning - The Chartered Institute of Bankers in Scotland - 25/10/2012
  • Statement of Professional Standing - The Chartered Banker Institute - 01/11/2024

True Potential Swansea Services

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Why True Potential?

Why choose True Potential

Award winning

True Potential’s aim is to revolutionise the way wealth management is delivered. By using award-winning technology to deliver financial services, True Potential empowers financial advisers and their clients to take control of their futures.

20 awards
20 industry awards won in 2025

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Innovative investments

Whether you’re aiming to pay off your mortgage, cover university fees or just grow your money, True Potential Portfolios use a pioneering approach known as Advanced Diversification to find opportunities for growth that others can’t replicate.

£37 billion
Invested with over 600,000 clients

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Revolutionary technology

True Potential clients can check their investments 24/7 and top up anytime with impulseSave. They also get access to exclusive features like True Potential Rewards, which enables them to earn cashback from over 4,000 retailers.

10 million
Over 10 million logins in 2025

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Reach your True Potential.

We all have goals in life that we would like to achieve, these can range from long term retirement plans, being able to grow your finances, or to give something to the next generation. However, the longer you wait to act, the more difficult it could be to achieve these goals.

Get in touch with True Potential Swansea and Mark can help put together a plan to set you on the right path to achieving your financial goals.

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