E+I Engineering Ltd. was founded in 1986 in Derry, Northern Ireland by Philip O’Doherty and derived its name from the industry sectors it served in the early years of existence, namely Electrical and Instrumentation projects. Specialising in manufacturing Process Control panels, its customer base was in Water Treatment plants, Manufacturing Process Control and Heating, Ventilation and Air Conditioning (HVAC) panels.

Serving mainly the Irish and UK markets, E+I Engineering expanded their engineering expertise into Electrical Switchgear in the early 1990s after becoming a ‘Build Partner’ for the CUBIC modular metalwork system. A rapid period of growth in this sector saw the company relocate to a new purpose built facility in 1996, with investment in metal fabrication machinery supporting the drive for standardised production techniques and high volume output.