Our Team

Welcome to the Our Team page where you will meet highly talented and experienced professionals who make Williaam Cox an industry leader. This is a team of passionate and energitic individuals who all play an important role in the success of the company and help fulfil our mission to exceed our customer expectations through a focus on quality and attention to detail.


Darragh Coleman

Managing Director

With responsibility for the Sales and Management of Williaam Cox, Darragh has over 10 years of experience in both the Glazing and Plastics industries. With a Degree in Materials and Engineering from the University of Limerick, Darragh joined Williaam Cox almost a decade ago and has formed a strong team of experienced and qualified personnel.

Brendan Barrett Williaam Cox Head of Rooflights and Façades Daylight & Façades

Brendan Barrett

Head of Rooflights and Façades

Brendan joined Williaam Cox in 2008 and has held many positions within the company. Brendan has developed 10 years of experience in materials and glazing systems, focusing on manufacturing and design. He is now responsible for the sales, estimating and integration of new Daylight and Façade projects into the company.

Eoin Hegarty Williaam Cox

Eoin Hegarty

Head of Distribution

As Head of Distribution, Eoin has 14 years of experience in selling plastics to the construction, print, shopfitting and signage industries. Having worked on Applegreen, Tesco, RTÉ and the HSE projects, Eoin is committed to providing customers with expert knowledge and solutions in all areas of their plastic and cladding requirements.

Mark Colbert Finance Director

Mark Colbert

Finance Director

Mark joined Alucraft in April 2018 as Finance Manager and has progressed within the group to Finance Director for both Alucraft Ireland and Williaam Cox in that time. He is a qualified ACCA accountant and has 7 years of experience managing finance departments, with a proven ability to analyse, interpret, and communicate financial data to all levels of the business.

Martin McNally

Martin McNally

Head of Smoke Ventilation & Service

Martin is the head of Smoke Ventilation and Service at Williaam Cox. His department is committed to delivering high-quality smoke control equipment supported by extremely skilled service engineers, expert technical sales and customer service teams who are on hand to assist with all client needs.

Martin joined Williaam Cox in 2020, initially as a technical sales manager, with over 10 years of sales experience in the construction and industrial sectors. The Monaghan man is not shy with his ambition to make Williaam Cox a leader in the field of smoke control and natural ventilation.

Outside of his professional role with Williaam Cox Martin is a keen sports enthusiast and can be found patrolling the GAA pitches of Ireland in his role as a referee.

Mícheál Hallissey

Head of Construction

Mícheál joined Williaam Cox in May 2023 as Head of Construction with responsibility for Design, Procurement, and Construction of our Architectural Facades. Mícheál is a Chartered Structural Engineer with 20 years’ experience in the construction industry, the majority spent with Tier One Main Contractors. He has worked on projects across all sectors of the construction industry and brings the knowledge he has gained to the Williaam Cox Team.

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Colette has several years’ experience in the glazing industry working with Alucraft Ltd. In 2014 Colette joined Williaam Cox and looks after all aspects of the accounts for the company.

Colette Colley

Accounts Administration

Igor Silveira

Igor joined the team in November 2018 bringing with him a wealth of knowledge in Air Conditioning Systems and Conveyor Belt design. Igor has a degree in Product Design and is currently working on facade design with Williaam Cox.

Igor Silveira



David graduated from Waterford Institute of Technology with a degree in Architectural Technology in 1995. In 2007, David altered direction somewhat and opted to join Williaam Cox to work in the Façade Industry. David has worked on many high-profile façade / curtain walling projects and has built up a wealth of experience on some very large projects including the Internal curtain wall screens at the AVIVA Stadium and was Senior Designer on the curtain walling of the Monte Vetro (Google Building) project.

David McNally

Senior Façade Designer


Michael received his Bachelor of Science in Construction and Architectural Technology in 2008. He has worked in the construction and engineering industry since 2005, picking up a vast wealth of knowledge over that time span. Since joining Williaam Cox, Michael has focused on optimising the Schüco range for façades and rooflights.

Michael Larrigy



Tony Blair joined plastic distribution sales and Fabrication in Williaam Cox in 2018, bringing with him over 20 years experience in design and manufacturing of a wide range of materials to all areas of industry from construction to bespoke designs. Tony provides customers with solutions to all there product needs.

Anthony Blair

Sales Executive


Derek joined Williaam Cox in 2006 and has extensive knowledge of the Smoke Ventilation, Rooflight and Plastics industries. He is involved in the procurement and logistics of all products and services provided by Williaam Cox Ltd.

Derek Pearce



Pamela joined Williaam Cox during the summer of 2016 and has extensive experience in Sales Administration. Pamela looks after all order processing across the company from order entry to final invoice.

Pamela Murphy

Procurement Administrator


Darren joined in 2009 and has developed an in dept knowledge of both the manufacture and installation of both Schüco Systems and Smoke Ventilation packages. He possesses a detailed and expansive knowledge of various systems, construction techniques and project delivery strategies. Darren holds a Degree in Civil and Environmental engineering from Aberdeen University. With 4 years prior construction and Civil experience before joining Williaam Cox Darren has developed in to a progressive and detailed contracts manager.

Darren McCormack

Contracts Manager


David has 20 years’ experience in the construction industry and has worked on projects in Europe, Russia, UK and Ireland. He holds a BSc (Hons) in Quantity Surveying and a Post Graduate Diploma in Fire Safety Practice. David is currently involved in smoke ventilation enquiries working with customers and contractors to provide sales and technical information and works on projects from inception and design through to completion.

David Kenyon

Technical Sales Manager – Smoke Ventilation

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