Meet our Crew

Holly Manvell 🇬🇧


Holly is responsible for the running of Clean Sailors. She has a keen interest in environmental science and oceanography and is an advocate for the protection of our ecosystems, particularly where water quality is concerned. With over a thousand nautical miles of sailing under her belt, a core background in business, from private-equity ownership to listed companies, and experience with United Nations Association, United Nations Global Compact and various other international development organisations, Holly set up Clean Sailors to engage sailors and water-lovers in safeguarding the future of their passion – the sea.

Libby Allen 🇬🇧

Science Lead

Libby leads our team on Science, helping us to understand and communicate the real impact we are having on the world around us. She's a Master in Oceanography, has done several research studies on microplastics AND is a champion sailor. By 13 years old, Libby was competing in sailing across the UK and became the youngest ever person to win a National Championship race in the double-handed Enterprise dinghy class. Libby is also a sailing and paddleboard instructor who teaches her students as much about protecting the marine environment, as mastering their boat or board.

Lukas Hesse 🇩🇪


Lukas is a professional 49er sailor in the German Sailing Team, German Champion 2020 and a proud Ambassador of Clean Sailors! As well as training for medals in the Olympic Games in 2024 and 2028, Lukas has a passionate interest in protecting the our waters and joins the team to help further our word of clean sailing within the dinghy and professional sailing communities. Lukas started sailing Optimists at the age of six on the beautiful Lake Chiemsee in Bavaria, Germany, and has been hooked ever since. These days, you can find him training in Kiel and all over Europe!

Mo Funani 🇿🇦


Mo is passionate about sailing and ocean health initiatives. Based in Cape Town, South Africa, (we know, jealous!) he is a sailor, environment ambassador and Co-founder and director of Offshore Yacht Services. Mo also sits on the L26 Class Association of South Africa Committee, responsible for growing and promoting sailing in the Western Cape. With a Bachelors degree in Sports Management, Mo is fascinated by science and technology and how they come to come together to develop handicap systems in the sailing world. He's also on his way to becoming an Offshore Racing Congress (ORC) measurer.

Philippa Rytkönen 🇫🇮🇮🇸

First Mate

Philippa helps in the running of Clean Sailors, from strategy and planning to execution. She is a Finnish offshore sailor and sea scout, currently completing a Master in Environment and Natural Resources at the University of Iceland. Philippa has sailed thousands of nautical miles and when back home you can find her skippering her sea scout club’s 42ft training vessel S/Y Tokka-Lotta. Ocean conservation is one of Philippa’s passions and she believes in the immense impact the global sailing community can have in order to turn the tide on protecting our oceans.