Enterprise acquired Burnt Tree a year ago and, since then, the management team, under Enterprise Flex-E-Rent managing director Danny Glynn, has implemented an integration programme.
The business will continue to operate from its base in Shrewsbury in Shropshire, serving commercial vehicle customers from a regional network of depots that spans the UK.
Under the Enterprise Flex-E-Rent banner, the company operates a fleet in excess of 25,000 commercial vans and trucks, with more than 450 employees.
"The Burnt Tree brand had a fantastic reputation in the commercial vehicle industry, which made it such an attractive proposition," comments Glynn.
"However, we believe that the time is right to unite the businesses under a single brand Enterprise Flex-E-Rent, which stands for the highest levels of customer service, investment and innovation."
All 21 Burnt Tree locations in England, Scotland and Wales will be rebranded as Enterprise Flex-E-Rent.
New vans and trucks will also feature a new livery commissioned for the merged entity.