Calculus injects £2.25m into Duvas

The fresh capital will enable Duvas to expand its presence in the US, where it is currently awaiting regulatory approval to begin sales, as well as move into new regions.

Calculus is currently raising funds for its 16th Enterprise Investment Scheme fund, which launched in June 2015 with a target of £25m.

The firm most recently invested £2.5m in London-based marketing agency Once Upon a Time.

Company
Founded in 2008 as a spinout from Imperial College London, Duvas develops ultra-violet technologies to analyse air pollution in major cities and industrial centres. Its products detect traffic-related pollutants such as ozone, nitrogen and sulphur dioxides, as well as toxic chemicals related to the oil & gas and industrial sectors.

Duvas is now headquartered in Woking, Surrey, and has additional offices in Dubai. It works with organisations including the US Environmental Protection Agency, the Belgian Environmental Protection Agency, Rotterdam Harbour and Shanghai Environmental Monitoring Center.

People
Calculus Capital - John Glencross (chief executive).
Duvas Technologies - David Frew (CEO).

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