Gist has won a new contract with Arla Foods UK to store and distribute milk in the north of England and Scotland.
The operator will handle product from Arla's Lockerbie dairy, providing warehousing for packaged milk from the site.
It will also make daily deliveries of milk to retailers across Scotland and the North.
Gist said it will integrate this service with movements for other clients, which will boost the efficiency of the transport operation.
Arla Foods UK general manager Daniel Hamby said the operator's plan also incorporates room for volume growth, which painted it favourably in the tender process.
Hamby added: "We are pleased to have awarded our Scottish transport and warehouse operations to Gist. They met all the tender requirements of delivering a proactive service model, along with an aligned strategic business plan which we’re confident will help deliver great customer service."
Gist MD Alan Devine said: "We are excited to be awarded this opportunity with such a great customer. We look forward to utilising all of our expertise in food logistics to exceed Arla's customers' expectations and to deliver the best possible supply chain using great Gist people."