Synergy Marine is a World and National Championship winning builder of high performance race boats and is the only UK builder of the Mk 4 International Cadet.

Our Cadets are all ‘bespoke’ and built using the latest composite technologies including Polyester resin infusion to produce the lightest, stiffest and strongest construction available. The hull and deck are constructed using a PVC foam core with woven e-glass cloth used throughout. Hull and decks are resin infused under vacuum to consolidate and “pull” the resin through the glass fibres. We can accurately control the amount of resin required to ‘wet-out’ the fibres and foam core.

New boats don’t have to be made in white with shades of grey so at Synergy we offer our customers a broad range of colours for the thwart, centreboard case, grab rails, floor and hull.

We can supply everything from a bare hull for upgrading an existing boat to a complete on the water, race ready boat.

As well as a manufacturer of new boats we also provide a comprehensive maintenance and repair service.

Based on previous World and National Championship winning designs, we strongly believe that we have the best all-round Cadet hull-shape available. Please feel free to contact us for further details of our current options and costs.

Workshop Address:

Synergy Marine
Unit 17C Seven Acres Business Park
Newbourne Road
Waldringfield Heath
IP12 4PS

Telephone: +44 (0) 1473 736293
Mobile: +44 (0) 7769 700462


Opening Hours

We do not have set opening hours so please call before visiting to avoid disappointment. However, we are typically open Monday to Friday 9am to 5pm (or later) and more often than not can be found in the workshop on a Saturday and Sunday!