

The Williams range
8 models on the register
8 boats


Electric EvoJet 70e

EvoJet 70

SOLAS 625

SOLAS 565

SOLAS 505

DieselJet 565

DieselJet 505
In their own words
About Williams
Williams Jet Tenders is a British manufacturer founded in 2004 by Roy Parker and brothers Mathew and John Hornsby, building out of an 80,000 sq ft purpose-built facility in Oxfordshire, England. The company traces its roots to a converted garden shed in rural Oxfordshire where the Hornsby brothers began handcrafting boats in the mid-1990s; the formal company registration followed in September 2004.
Williams is the build we ask for when an owner's programme demands a jet-propelled tender that earns its keep across the full yachting day - short transfers, watersports, and heavy guest loads alike. Their proposition is volume: six ranges, seventeen-plus models, covering yachts from 38ft to 40m and above. The entry-level TurboJet and SportJet lines use BRP Rotax petrol engines and jet drive propulsion with no exposed propeller, carrying up to seven passengers at speeds into the upper-forties of knots. The DieselJet range steps up to Yanmar inboard diesels and seating for six to twelve, suited to larger platforms. For programmes running a 40m-plus mothership, the EvoJet 70 is the build to specify: a 7.0m waterjet-powered craft with inboard diesel, seating for thirteen, and multiple boarding locations. SOLAS-compliant variants of the 505, 565, and 625 cover mandatory life-safety requirements for yachts over 500GT without abandoning the standard Williams fit and finish.
Every hull is hand-built by a dedicated team and undergoes an on-water test procedure before dispatch. Williams holds strong factory-fitment relationships with Princess, Sunseeker, Fairline, Azimut Benetti, Ferretti, and Sanlorenzo, with many production models dimensioned specifically around a Williams garage. We'd put the brand alongside the best-supported tender choices in the market at this price tier.
What we know
Williams at a glance
Over 2 decades in the segment.
UK build origin keeps refit support in the European time zone.
Documented on the register with full spec, pricing where supplied, and brief-side notes from work we have done.
Read
Reference reading on Williams's segment
SOLAS Tender Compliance
A SOLAS rescue tender is type-approved life-saving equipment, mandatory on yachts of 500 GT and over in commercial service. This guide explains what the LSA Code requires, which builders hold current type approvals, and how the choice drives garage and davit design.
ReadThe Complete Guide to Buying a Superyacht Tender
Most tender purchases go wrong in the brief, not the build. This guide walks the buying process end to end, brief first, garage envelope second, propulsion third, yard shortlist fourth, contract fifth, the way we run it for owners.
ReadTender Garage Sizing: Matching Tender to Mothership
The tender garage is the most expensive box on the yacht to get wrong, once built, stretching it means cutting structure. This guide works backwards from the tender envelope through the seven dimensions that actually decide which boat fits.
ReadDavit Systems and Launch/Recovery for Tenders
The davit is the part of the tender programme nobody thinks about until it fails. This guide explains the launch-and-recovery options, the SWL and cost that drive them, and why the geometry is locked at yacht-concept stage before the tender is chosen.
Glossary
Williams terms worth knowing
Talk to us
Brief us on a Williams.
Send the mothership, the programme, and the role you need filled. A response follows within 48 hours.



