Whistl

The Whistl Group is a UK-based logistics and delivery management specialist headquartered in Marlow, Buckinghamshire, England. Its businesses provide domestic and international mail and parcel delivery management, unaddressed leaflet advertising, product sampling, eCommerce fulfilment, and contact centre services. Overall, Whistl handles more than 3.6 billion mail and parcel items annually and has over 1 million square feet of fulfilment warehouse space across the United Kingdom. In 2026, Whistl began operating from a warehouse at Astley Business Park, a development that had attracted significant local opposition before and after construction. Residents raised concerns about noise, traffic, lighting, flooding and the proximity of the warehouses to nearby homes. An independent audit commissioned by Wigan Council concluded that local residents had "no meaningful opportunity" to engage before the planning application was submitted, although it found the planning approval process itself had been lawful. Whistl stated that it had been working with residents and monitoring noise to mitigate the impact of its operations. Whistl is a competitor and partner to other businesses involved in mail and parcel distribution, such as Royal Mail, UK Mail, DHL, Evri, Parcelforce, UPS and Yodel. The company was a wholly owned subsidiary of the Dutch delivery company PostNL until October 2015, when a management buyout was completed. PostNL remained a minority shareholder.