The company has revealed a $9m series A round closed in December 2015 that included $3m in convertible seed financing.

US-based energy usage monitoring platform Verdigris has raised $9m in a series A round backed by Stanford University’s StartX Fund and led by contract manufacturing company Jabil Circuit.

Founder.org Capital, Data Collective and assorted angel investors also took part in the round, which included the conversion of $3.5m in convertible debt, according to a regulatory filing. The round was closed in December 2015 but remained undisclosed until now.

Founded in 2010, Verdigris operates a platform that combines artificial intelligence, sensors and software to monitor the operational and energy efficiency of commercial buildings in real-time and recommend optimisations.

As part of the deal, Jabil Circuit will become Verdigris’ manufacturing partner and provide supply chain, logistics and fulfilment services.

David Kipling, vice-president, corporate investments at Jabil Circuit, said: “We investigated the building analytics landscape. We found nothing that compared to the accuracy, granular data and analytics Verdigris has developed.

“Verdigris’s stunning vision for actionable data is a best-in-class example of the potential of internet of things in energy. We are keen to support their impressive team to bring Verdigris to the market and support their ultimate success.”