Founded in 1972, this Surrey company has evolved from a small groundworks firm to a large construction contractor, offering civil engineering, plant hire and reinforced concrete frames. Its clients include Berkeley, Taylor Wimpey and Crest Nicholson. Its founder and chairman is Tom O’Brien, 70.

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Company details
Year2017
Rank87
CompanyO’Halloran & O’Brien
ActivityConstruction contractor
LocationSurrey
Sales £m247.8
Operating profit £m21.6
Main shareholdersO'Brien Family (100%)
Staff139
Founded1972
Websitewww.ohob.com

If applicable:

* supplied by Company   † annualised figure   ‡  profit = ebitda