Exhaust Systems; Noise and Vibration Control and Environmental Protection exhaust silencer manufacturers EXPLORE

Welcome to
Halyard (M & I) Ltd

Managing engine noise, smoke and vibration, as well as your overboard discharges is becoming increasingly important. Halyard offers the most advanced products available to achieve this, with standard components and designed bespoke solutions that are project managed to meet your requirements.


Pleasure Craft



Distributors and Dealers

Supplying and supporting our products and customers around the world through our distributor and dealer network.


SEAWORK 2020 – Commercial Marine & Workboat Show
9th – 11th June | Southampton, UK
Halyard Stand: PG117
Southampton boat show
Southampton International Boat Show 2020 – Recreational Boat Show
11th – 22nd September | Southampton, UK
Halyard Stand: J406
Monaco Logo
Monaco Yacht Show 2020 – Superyacht Show
23rd – 26th September | PORT HERCULES, MONACO
Halyard Stand: DS120
Mets Logo convention
METS trade 2020 – Marine Industry Trade Show
17th – 19th November | Amsterdam, Netherlands
Halyard Stand: Superyacht Pavilion, 11.202


Find out the latest developments and innovative ideas from the industry as we aim to maintain our spot as leaders in the market.

  • Well done to South Shore Marine and Diesel who recently supplied this Halyard Dry Exhaust System to suit a Cummins QSM11 engine (297kw @ 1800RPM). The vessel, “Shannon Dolphin”, a Roll On

  • While Covid-19 continues to impact on both our personal and working lives the safety and well-being of our employees, customers and suppliers remains our top priority. As a manufacturing operation we

  • Richard Summers gives his word as the efficiency improvement plan finalises – “For 20 years, Halyard has had a distribution centre at Whaddon, near Salisbury. Not any more – at the end of