The hiring of the Manchester shop follows the end of a strategic review by the HSE that will lead to an increased marketing spend to £10 million over the next three years.
As a result, the HSE becomes the second-biggest client at CheethambellJWT, which competed for the business against McCann Erickson Manchester and BDH\ TBWA. The HSE's media planning business remains under review.
COI Communications ran the pitch for the brief to publicise the HSE's work in protecting people's safety by ensuring workplace risks are minimised and to promote its advice service.
The win complements CheethambellJWT's work on anti-smuggling for HM Customs & Excise.