Meet the team at Semmco
Dedicated to quality, safety and reliability through innovative designs, while manufacturing cost effective engineered solutions
Our team is committed to providing exceptional innovative design, intelligent engineering and most importantly, excellent customer service before, during and after your purchase from Semmco.
“It’s a pleasure dealing with a company that has a can do approach both during the evaluation approach and subsequent after sales period.“ BMI

Stuart McOnie
Managing Director Semmco Group
Stuart McOnie started his career in engineering at the age of 16, following a childhood spent building models and electrical systems, and being fascinated about how things work. After 25 years in business Stuart now manages 3 locations globally. Read more about Stuart McOnie here...

William McOnie
Operations Manager
Will works in the UK business and is responsible for the day-to-day operations of the company. His main focus is to ensure that our products and after sales service meet our customers' expectations. Will joined Semmco in 2014, working initially in Life Protection Systems and selling our range of short duration escape breathing apparatus. He joined the sales team for the access and GSE business in 2017 before being relocated to Texas as part of the team who established our US operation. Will returned to the UK at the end of 2020 and assumed the role of Operations Manager for the UK operation in November 2022 . sales@semmco.com

Andrew Walling
Senior Sales Manager UK & Europe
Andrew manages our UK & European sales, he is an experienced Sales Engineer, International Business Development and Sales Manager who has been involved in a wide range of safety related products across his career, most recently in the aviation and rail industries.

Ramy Elawady
Technical Sales - Middle East
Ramy is based at our Dubai office. He works closely with our key clients in the Middle East, Africa and Australasia and supports Ben Hoyle with the production of Semmco products at our Middle East manufacturing facility.

Rob Currey
Senior Service Engineer
Rob joined Semmco in 2007 in our production team. He now heads up our experienced field and service team providing installation, servicing and maintenance for Semmco products on site with our aviation and rail customers.

Carl Bennett CEng MIED
General Manager LPS
Carl is a professional Chartered Engineer with over 25 years experience across Aerospace, Rail Ports, PPE and Renewable Technology. He has worked with Semmco since 1996 in various key roles across the business and now is General Manager for Semmco Life Protection Systems.

Diane Dawkins
Finance Manager
Diane manages the finance department for Semmco & Semmco LPS in the UK as well as Semmco DWC in UAE. She started at Semmco in 2016 following previous financial management roles at Burhill Estates for 11 Golf Centres & the Guinness Family Estates and the University of Roehampton in London.
Jackie Connelly
Purchasing Team Lead
Jackie is responsible for the efficient and timely procurement of all the components required to produce the extensive range of equipment manufactured by Semmco. She is responsible for all the components purchased for the UK and DWC operations and also supports the purchasing team in our US facility. Jackie has been with Semmco for several years and has worked in different departments and so she has extensive knowledge and understanding of the business and our customers' needs.