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Basic Info

QUALITY DELIVERED... SAFELY, ON TIME, EVERY TIME

MSL Engineering Ltd. is a full-service mechanical engineering contractor operating across a wide range of industry sectors. With over 45 years of expertise and a flexible project management approach, MSL delivers best-in-class projects utilizing BIM and modular fabrication processes to the highest standards of workmanship, safety, quality, and reliability.

Founded in 1979, MSL Engineering specializes in the fabrication and installation of process, utility, and high-purity pipework, platforms, steelwork, and equipment installation across many industry sectors.

Service Offerings:

    • Modular fabrication and assemblies
    • Fabrication and installation of process, utility, and high-purity pipework
    • Managing multi-discipline subcontractors including HVAC, scaffold, craneage, insulation, painting, and NDT
    • Utilizing BIM and 3D modelling design processes

With a workforce of over 700 people, MSL has grown to become one of the leading players in an industry that has seen parallel growth in the pharmaceutical, biopharma, semiconductor, chemical, oil and gas, energy, data centre, and food & beverage sectors.

Originally established to provide craft support to the fledgling but now defunct NET plant in Marino Point, Cork, the business expanded its client base over time and developed a reputation for reliability, engineering excellence, and the ability to get the job done.

Retaining the roots of the original founders, the company is a wholly owned Irish entity. It has organically evolved from providing support services to local industry to a position where it now competes successfully for large-scale engineering projects and provides a full range of engineering and constructability solutions to clients throughout Ireland, the UK, Europe, and the US.

Safety Commitment: Working in inherently hazardous industries, MSL has always taken an uncompromising approach to safety. This is evident in its high standards and long-standing safety record, its ISO45001-accredited safety management system, and its behavioural safety-based systems of work.

MSL’s desire to continuously improve to stay ahead of the competitive curve has led it to identify and invest in new business processes in recent years. As a result, the company significantly increased turnover and expanded its area of operation to include Denmark, Belgium, the Netherlands, Switzerland, Sweden, and the UK.

Digital Technologies Investment: The company’s investment in digital technologies means MSL continuously improves its BIM offering to clients and its digital project delivery (DPD) capabilities. MSL also encourages and promotes early contractor engagement and an integrated project delivery (IPD) approach by offering modular design and modular construction experience to maximize offsite manufacturing and fabrication (OSM) opportunities for clients.

Recently, MSL has successfully demonstrated its ability to execute an “OSM Integrator” role on significant CAPEX projects of scale, by coordinating between client, designer, and contractor, and capitalizing on any potential value added by OSM and a modular approach.

Reflecting strong growth, MSL has invested in a modern 140,000 sq. foot fabrication facility in Ringaskiddy, Co. Cork. This new facility, adjacent to the newly relocated Port Of Cork, includes a large-scale modular fabrication workshop, a piping fabrication workshop, and an 8,000 sq. foot clean piping workshop. It enables MSL to continue to service all their existing clients and allows them to expand and develop relationships with new clients in Ireland and abroad.

MSL Managing Director Brian McGrath says: “Our mission is to set the industry standards for safety, quality, and reliability, consistently exceeding client expectations. Guided by honesty, respect, and integrity, we are dedicated to forging enduring partnerships that deliver mutual benefit and success for our clients, team, and community.”

“Our focus in developing a standard of performance is to ensure all MSL personnel are empowered to achieve their full potential and are recognized for doing so. Our performance standard defines how well each function or task must be performed in order to meet or exceed expectations, thus ensuring our standards are best in class.”

With continued growth, a new modern Fabrication Facility, ISO accredited Management Systems in Safety (ISO45001), Quality (ISO9001) & Environmental (ISO18001), and investment in new innovative business processes, MSL Engineering Ltd continues to challenge itself to deliver the highest standard of service deserved and expected by its clients.

Why work with us

MSL’s ability to deliver quality, safely, on time, every time has seen MSL regarded by its clients as an integral link in their supply chain whether it’s one-off construction projects or responsive maintenance contracts.

Reflecting strong growth, MSL has invested in a modern 140,000 sq. foot fabrication facility in Ringaskiddy, Co. Cork. This new facility, adjacent to the newly relocated Port Of Cork, includes a large-scale modular fabrication workshop, a piping fabrication workshop, and an 8,000 sq. foot clean piping workshop. It enables MSL to continue to service all their existing clients and allows them to expand and develop relationships with new clients in Ireland and abroad.

With continued growth, a new modern Fabrication Facility, ISO accredited Management Systems in Safety (ISO45001), Quality (ISO9001) & Environmental (ISO18001), and investment in new innovative business processes, MSL Engineering Ltd continues to challenge itself to deliver the highest standard of service deserved and expected by its clients.

Clients (20)

Pfizer

Pfizer: One of the world's premier biopharmaceutical companies Discover the commonalities and differences between biologics vs. biosimilars — especially when it comes to cost. The world's la... read more

Thermo Fisher Scientific

Thermo Fisher Scientific Inc. is the world leader in serving science, with a mission to enable customers to make the world healthier, cleaner, and safer. They offer a wide range of innovativ... read more

Sanofi

Sanofi is a global healthcare and pharmaceutical company that is dedicated to improving people's lives through the miracles of science. They focus on patient needs and are engaged in researc... read more

Regeneron

Regeneron is a leading science and technology company delivering life transforming treatments for serious diseases. Founded by physician scientists over 30 years ago, our science driven appr... read more

Brochure

Video

Company focus

Services

Construction Services
Design & Project Services
M&E Services
Offsite Construction
Specialist Contractors
Construction Products
Mechanical & Electrical

Industries

Manufacturing
Pharmaceutical & Biopharmaceutical
Semiconductors
Construction
Pharma-Life Science Lab
Modular-Modern Methods of Construction
Engineering

Projects or Case studies (6)

Modular Distillery Expansion

Modular Distillery Expansion

April 2024 - June 2025

As part of a major distillery expansion for IDL—a key client with whom we share a long-standing partnership—MSL produced over 600 isometric drawings and installed 8,500 metres of piping, with diameters from 3" to 8". The scope included 3,100 welds, totalling 12,700 diameter inches. All module steel, piping, and cable tray were assembled at our Mainport facility in Ringaskiddy. Onsite, MSL erected 14 steel towers, 47 trestles, and installed 75 modular pipe racks, each averaging 15 tonnes and 15.5m in length. Four modules were fabricated and transported weekly through Midleton town centre under night-time logistics, coordinated with An Garda Síochána. From Autumn 2024, four modules were erected and piping connected up weekly. Power supply racks were installed over live services, showcasing MSL’s commitment to safety, precision, and minimal disruption.

New biological drug substance manufacturing facility

New biological drug substance manufacturing facility

November 2023 - May 2025

MSL installed over 16,000 metres of piping in just 18 months for this fast-paced project in Grangecastle, Co. Dublin. This included 9,500 metres housed within 65 modular pipe racks and 6,500 metres installed as stick-built pipework. Following a detailed offsite feasibility study led by MSL, 20 offsite-manufactured (OSM) utility skids were successfully engineered. All piping and equipment turnover documentation was completed digitally, ensuring a streamlined, efficient, and fully traceable project delivery.

Pharmaceutical Production Facility Extension

- May 2025

Over 20,500 metres of piping installed by MSL Engineering for a valued pharmaceutical client in Ringaskiddy, Co.Cork. This comprised of 6,500 metres across 24 modular pipe racks and 13,000 metres installed as stick-built pipework. The project involved more than 85,000 weld inches, with fabrication averaging 2,500 weld inches per week. In addition, our team successfully installed over 300 pieces of equipment, including reactors, filter dryers, CM skids, TCUs, and head tanks.

New Semiconductor Fab Facility - Ireland

New Semiconductor Fab Facility - Ireland

April 2024 - April 2025

MSL fabricated, delivered and installed 60 modular pipe racks for a valued semiconductor client as part of a major project in Leixlip, Co. Kildare. The scope included 11,500 metres of pipework—spanning stainless steel, carbon steel, plastic, high-purity stainless, high-purity plastic, and copper—and over 85,000 weld inches, reflecting the scale and precision of our modular fabrication capabilities.

Contacts

Dave Ronan Avatar

Dave Ronan

Projects Director

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