National Oilwell Varco, an oil and gas services company, has joined the £4m ($6.1m) investment round of Sigma Offshore, a UK-based energy services company.

Alongside Varco in the funding were UK development agency Scottish Enterprise’s Scottish Venture Fund and Energy Ventures, Sigma Offshore’s original investor and major shareholder. 

James Mawson

James Mawson is founder and chief executive of Global Venturing.