ATC Systems Ltd is one of the premier HVAC Control System Houses within the UK and Ireland,and having been established for over thirty years we have a reputation for delivering high quality solutions for any control application.

Our diverse range of products and in house engineering expertise across our product range allows us to meet the needs of our clients whatever the size of the project from a single stand alone system to complex multi site integrated buildings incorporating central control of HVAC, lighting, access control and CCTV.

We offer system solutions using market leading products within the Building Energy Management sector a fact endorsed by our position as:

  • Trend Technology Centre
  • Siemens Building Technologies Approved Solutions Partner
  • Honeywell Centraline Partner


We work to the highest standards and are continually striving to improve our operating procedures whilst ensuring that the health, safety and well being of both employees and customers are never comprised. The company is fully committed to maintaining these standards through its management systems and are certified to ISO 9001:2015 and OHSAS 18001:2007 . ATC plan to migrate to the new safety standard ISO 45001:2018 in the near future.

The Company is founded on building long term partnerships with their customers and ensuring that the necessary engineering resource is placed close to the point of use. That continues today and is why we have regional offices that allow us to continue providing that local support.

Our Head Office is based at 3 Enterprise way, Mallusk, Newtownabbey, Northern Ireland,BT36 4EW with Branches in the North West and Castleblaney, County Monaghan.