Theo launched London Waterkeeper in 2014. The organisation uses environmental laws and grassroots advocacy to drive change. Theo grew up in rural Wales, and after university spent five years at BBC Radio Leicester. He made the move to London twenty years ago to take a position at Keep Britain Tidy, before transferring to Thames21, where he spent 12 years as Senior Programme Manager. To inquire about booking Theo Thomas for your event or conference, please visit our Keynote Speaking page.

Dee lives by the River Lea in Hackney, East London. She contacted Theo when he was running “Love the Lea” with Thames21, after noticing how polluted the river was. She started volunteering on the project – testing the water outside her house. When Theo set up London Waterkeeper, Dee supported his vision of an independent voice for London’s rivers and became a founding trustee.  

Dee is a keen hiker and has qualified as a Lowland Leader with Mountain Training, she is currently working on her Mountain Leader qualification. She is also co-director of The Brokedown Palace – an outdoor store in east London. One of their brands is Patagonia, who support London Waterkeeper as part of their grants programme for grassroots environmental organisations.

Alex lives near the Thames in South East London and is the Secretary for London Waterkeeper.

An outdoor enthusiast, he holds climbing, mountaineering and skiing qualifications and enjoys fishing in his free time.

This summer, he’s planning to walk the Cumbria Way, where he will pass alongside some of the UK's most beautiful yet vulnerable bodies of water.

Kevin is an experienced compliance advisor specialising in financial markets with roles at global investment banks. Outside of finance, he also volunteers for London Waterkeeper, advising on governance and policies. Kevin has a degree in economics from the University of Bristol.

In his free time, Kevin enjoys visiting outdoor spaces such as National Trust sites and botanical gardens.

Sarah Saunders swims all-year at the Kenwood Ladies Pond in Hampstead. She met Theo through the Kenwood Ladies Pond Association, and together they organised two Thames mass swims from Richmond.

Sarah is a photographic archive consultant and has documented swimming at the Ladies Pond since 2004.

She is passionate about environmental issues, and as a Trustee of London Waterkeeper, wants to bring a swimmer’s voice to the organisation, to realise the vision of a ‘Swimmable Thames’.

Charles has considerable experience as a Chartered Accountant working with small business units of large commercial organisations across a variety of fields, including FMCG, Paper and Promotional goods. He currently works part-time in the family office of a high net-worth individual.

In his spare time, he has been an assistant scout leader for eight years. This has helped develop his environmental awareness and love of the outdoors, which in turn led him to undertake the role of treasurer and trustee for London Waterkeeper.