NG Bailey is among the UK's leading providers of building services, mechanical, electrical, ICT, off-site manufacture, interiors, systems integration and maintenance solutions.

The company started as The Bailey-Billington Partnership back in 1921 with an equal capital share of £50. After a year Noel Bailey senior bought his partner out for £100 and formed a non-limited company, NG Bailey & Co.

The company headquarters are in Ilkley but new branches were set up in the early 1960s in Sheffield, Birmingham and Bristol. During the 1980’s, further expansion continued, opening offices in Southampton and London, with offices in Aberdeen, Edinburgh and Glasgow replacing the original Scottish office in Dundee.

In 1990, following demand from long-standing clients, the organisation entered the HVAC market, including a building maintenance service. This has rapidly expanded and in 1992 Bailey Maintenance was formed to expand this capability.