Celtic Couriers will be taking delivery of another new Citroen van this week.
The arrival at the firm's Burry Port headquarters takes the number of Citroens in the fleet to 11.
Celtic Couriers have 17 vans delivering and collecting every day in the local area.
The fleet also includes four lorries, ranging from 7.5t, 18t, 24t and 44t.
The firm delivers and collects on average 1,300 parcels a day, and 55 pallets a day.
Celtic Couriers general manager Gareth Jenkins said: "There's always a bit of a buzz as a new vehicle arrives at our HQ. Keeping our fleet up-to-date is very important to us as we continue to deliver the best possible service to our customers."