This Selkirk-based company buys energy and supplies it to more than 350,000 customers in rented accommodation and social housing. In August last year, chief executive Chris Gauld, 39, led a buyout backed by private equity firm Limerston Capital, which acquired a majority stake for an undisclosed sum. In May, Spark Energy acquired Sussex-based broadband, telephone and entertainment packages firm Home Telecom for an undisclosed sum.

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Company details
Year2017
Rank169
CompanySpark Energy
ActivityEnergy supplier
LocationSelkirk
Sales £m*158.0
Operating profit £m*7.0
Main shareholdersLimerston Capital (>50%), management (<50%)
Staff400
Founded2006
Websitewww.sparkenergy.co.uk

If applicable:

* supplied by Company   † annualised figure   ‡  profit = ebitda