Founded in 1975 by chairman John Sampson, 72, this Romford-based company offers mechanical and electrical engineering services for large construction and refurbishment projects for clients including Sainsbury’s and Tesco. Other projects include offices and hotels, such as the new Edwardian being built in London’s Leicester Square. Its work on data centres in Holland, Finland and France helped international sales to reach £14.2m in 2016, under managing director Mark Sampson, 38.

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Company details
Year2017
Rank8
CompanyEssex Services Group
ActivityEngineering services provider
LocationEssex
2-yr av intl sales growth pa159.20%
International sales £000s*14,187
Total sales £000s*106,888
Staff183
Founded1975
Websitewww.esgplc.com

If applicable:

* Supplied by company † Annualised figure