Challenge SPIE-ENS had its sights set on rapid growth from the beginning. Formed in 2007 and trading then as Electricity Network Solutions, it took the firm just four years to reach number 14 in the Financial Times Fast Track 100. Electricity Network Solutions was purchased by SPIE in 2013 to become SPIE-ENS. By 2014, it had gone from 10 staff and a turnover of £440,000 to 260 staff and a turnover of £35-40 million. The only way SPIE-ENS co

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