The delivery management company said its most high-profile win was NatWest Group, one of the largest mailers in the UK, while its other new customers included Dennis Publishing, Crew Clothing, Mortons Media Group, Ramsey Health, and YouGarden in the mail and Doordrop Media divisions.

The company said it has also renewed contracts with Graze, Cotton Traders, Tesco, Sky, JD Williams, and Freemans Grattan.

It has also been awarded the second Northern Ireland government postal contract. This contract, for up to five years, follows on from the first contract awarded to Whistl in 2016 and covers a wide number of government and public sector bodies including those in education, health, finance, colleges, and transport.

Whistl’s Parcels and Parcelhub teams have won Virgin Media, Greener Books, Impeccable, Eurovista coffee pods, Mediasave and Hawthorn, QS Supplies, and Books2door.

The International division, meanwhile, is experiencing rapid growth from wins with Very Group, Tabbers, and Wildfire, while the fast-expanding Whistl Fulfilment and Contact Centres division has won Evans brand City Chic.

Whistl CEO Nick Wells said: “At Whistl we have crystallised our market position as the UK’s leading logistics specialists in e-fulfilment, contact centres, parcels and mail, as demonstrated by these wins. Well-known and respected brands continue to trust Whistl to deliver for them whether it’s our mail, parcel or fulfilment services.”

Headquartered in Marlow, the £685m+ turnover Whistl group of companies operates across the UK and handles more than 3.6 billion items a year.