Company History


With its roots in a family run business dating back to the early 1960s, C.E.M. Plant Limited was incorporated in 1991 and traded for many years as Ryan Plant Hire (RYANS) which reflected its earlier emphasis on plant hire, bulk excavations, earth moving, civil engineering and road construction.

RYANS were the principal contractor on the following notable infrastructural projects:

Cork County Council:                     Midleton Bypass
Cork County Council:                     Owenacurra Bridge (caisson type concrete bridge)
Cork County Council:                     Ballyannon & Bailick Underpasses
Wexford County Council:           Wexford Relief Road
Waterford County Council:       Lismore/Cappoquin Road Realignment
Waterford County Council:       Ballinroad Sewage Scheme
Waterford County Council:      Portlaw Sewage Scheme
Waterford County Council:      Lemybrien Road Realignment
Waterford County Council:      Lemybrien Reed Bed Sewage Waste Water Treatment System

ESB Aghada Generating Plant:    Maintenance of Rock Armour Protection
SystemBord Gais:                                 Irish Distillers Gas Supply (civil sub-contractor)
Agri-Meats:                                              Refrigeration Plant Expansion (civil works main contractor)
Veolia Environmental:                     Waste Segregation & Rehandling, Forge Hill, Cork
Roadstone Wood Limited:             Overburden Removal at Mallow, Carrigtwohill, Ballygarvan, Midleton, Classis and Garryhesta Quarries.
BAM Contractors:                               Site Development at Castlelake, Carrigtwohill
Berkrayle Developments:              Site Development at Whitepoint Avenue, Cobh (incl roads & utilities)
Henkel Ireland:                                     Fire Water Retention Pond & Associated Civil Works










Since establishment, our founding and managing director Michael Ryan, has overseen the sustained growth of the business and has adapted as required, due to the ever changing environment of the Irish Construction Industry.

Today C.E.M. Plant Limited trades as CEM Services (Civil Engineering & Maintenance Services) which better reflects the wide range of services now offered by our organisation. Through continued investments in health, safety, quality, IT, R&D and staff training, we have positioned our organisation to deliver consistently high standards, exceptional value, greater reliability and unparalleled levels of customer service.

We have utilised our vast experience in all aspects of the industry to specialise in providing comprehensive Facility Services to industry in a competitive, efficient and safe environment where all regulatory and employer requirements are incorporated and adhered to without difficulty. In today’s competitive marketplace, CEM’s core capabilities extend to a wide range of services across all industries and sectors.

CEM Services prides itself on delivering quality projects safely, on time and within budget. Innovative solutions, engineering ingenuity, adherence to the highest safety and quality standards and professional construction management are the hallmarks of CEM Services contracts. Our team of construction professionals offers a single-source solution for all of our client’s construction-related needs. Whether its restoration, site preparation, a new facility or facility renovation, we have the experience and personnel to provide the highest quality construction on schedule and within budget. We support our clients from project inception, to the commissioning of the fully operational facility.

Currently we are the term service civil engineering contractor at the Phillips 66 Whitegate Oil Refinery site. We have worked on both routine maintenance tasks as well as undertaking larger capital projects. All these projects were completed in compliance with Phillips 66 rigorous safety standards whilst conforming with engineering criteria as set out by the Petrochemical Industry and the consulting engineers onsite.