StormHarbour has doubled the size of its new Copenhagen office only two months after it opened, as the boutique investment bank seeks to capitalise on a wave of expected clean energy and infrastructure projects in the Nordic region.

The firm, founded in 2009 by two senior ex-Citigroup figures - Antonio Cacorino, the former global head of Citigroup's investor client group, and Fredrick Chapey, previously head of derivatives and emerging markets sales and trading - is increasingly focussed on the clean technology and renewable energy sector.