About us


The MacArdle McSweeeney practice was originally founded in 1968 and with over four decades of experience in the design of mechanical and electrical engineering installations we are now one of the most experienced M&E consultancies in Ireland.

In that time, we have successfully completed over 2000 projects across the commercial, residential, industrial, education, healthcare, hotel and leisure sectors.




The Headcount Group is Ireland’s leading provider of Managed Services and Outsourced Engineers to the Manufacturing, Design and Construction sectors. The relationship with Headcount allows MMA Consulting Engineers to augment the core design team and to resource even the largest projects.


MMA Consulting Engineers specialise in the design of Mechanical & Electrical services for the built environment and for manufacturing and process facilities.

Our projects range from medium to large size across the commercial, residential, industrial, educational, healthcare, hotels and leisure sectors.


BIM & Scan

BIM & Scan is part of the Headcount Group. It is an industry innovator and a provider of BIM (Building Information Modelling) services and personnel to the Design and Construction sectors in Ireland and to export markets.

With the support of BIM & Scan, MMA Consulting Engineers use the latest BIM technology and innovative modelling techniques such as lighting and thermal simulations to provide cost effective conceptual services to our Clients’ projects at development stage. The use of BIM allows us to provide industry leading lean design management throughout the design and construction lifecycle.

Brian has almost 45 years’ experience in the Building Services business, Brian has held senior management roles within the practice and he has played a pivotal part in its development.While his broad experience includes Design, Supervision, Specification, and General Contract Management, his highest profile successes have been in leading conceptual work on early project development with clients and architects. Brian is also recognised for his experience and innovation in services design for Data Centres.

Brian Woods

Richard is a Mechanical engineer with more than 40 years’ successful track record in the   execution of large projects, in all sectors within the practice.  He has held practice wide responsibility for Technical Reports and Surveys, Supervision, Project Management, Cost Planning & Control and Quality Assurance on both design issues with in the office and contractor’s work on site. He is also a respected authority on the design of large scale kitchen and catering facilities.

Richard Mason

Damien has 46 years’ experience in the design and supervision of Building Services for Large Industrial and Commercial Projects including Electrical Power Distribution Systems, Lighting & Controls, Data & Comms, BMS, Protective Services and Security Systems. Damien has been a director in the practice for almost 30 years and has extensive experience in Design, Project Management and Cost Control. In addition to his project work, he has also played a key role in the development of our Quality Management System.

Damien Egan

Dermot is a Chartered Building Services Engineer with over 30 years’ experience in the design and delivery of complex projects spanning the industrial, commercial and residential sectors. He has been a senior member of the management team for almost 10 years.He has operated at a senior engineering level within multi-national organisations where he developed a streamlined methodology for completing Concept, Preliminary and Detailed Designs for fast track project activities.

Dermot Doran

Fergus is a Senior Mechanical Engineer with 15 years of Building Services experience within Ireland and the UK. He is a Project Manager and Lead Design Engineer on various Commercial, Industrial, Healthcare, Educational, Leisure and Residential projects. He has extensive experience of delivering energy efficient designs and has designed numerous district heating schemes. Fergus has an MSc. in Building Services Engineering and is a member of CIBSE.

Fergus Ferguson

Philip is a Chartered Engineer with an MSc. in Building Services Engineering. Philip has over 35 years experience in the designing, managing and supervising engineering services for Residential, Commercial, Retail, Educational, Hospitals,Data Centres, High Tech Facilities, Leisure, Hotels, Water and Power. Philip is extremely proficient at resource management, cost control, quality control and financial appraisals. 

Philip Cleary

As well as holding a B.Sc in Electrical Services and Energy Management, James is proficient in the use of Autodesk Design Suite, CADFAB MEP and energy modelling package IESVE. Having held both site and office based roles, he is typical of the younger generation of talented engineers being mentored by our experienced practice seniors.

James Hammond

Gavin is a Senior Electrical Design Engineer with over 10 years experience, in both on-site and office based roles. He has worked across a broad range of sectors including Commercial, Industrial, Healthcare, Education and Residential. Gavin has considerable experience as project lead, from project set-up, over-sight and inspections, through to client handover.

Gavin Kelly

With 20 years’ operational Health and Safety experience, Barry is the Headcount Group’s senior Safety Consultant and group-wide auditor. He has held senior safety roles across the full range of industry players from fabrication contractors, design and construction management consultants through to clients in the industrial manufacturing sectors. He is also an experienced design project manager.

Barry Brown

Adrian is a BIM Piping Designer with over 10 years of experience in a wide range of sectors throughout Ireland. Predominantly Mechanical Piping Design, as well as, HVAC, Component & Assembly Design, and Building Services. He has worked on various projects across a range of market sectors including Food, Beverage, Pharmaceutical, Biotechnology, Medical Technologies, Oil and Gas, Energy, Microelectronics, Science and Education.

Adrian Kearns

With a background in energy and industrial utilities, Jim is a professional project manager and he has a track record of delivering complex industrial M&E utilities design and installation projects. In addition to his roles in business development, he is responsible for the production of energy and environmental sustainability studies for clients in the industrial sector.

Jim McMahon

Adam is a highly experienced scheduler within the Headcount Group and he is currently involved in the development of the practice’s 4D BIM Mechanical and Electrical integration project.

Adam Walsh