The rail operator, which stops at a number of stations in the west London borough, including Feltham, Hounslow and Isleworth , is in the running for an innovation award at the UK Customer Satisfaction Awards 2016, which recognises improvements for passengers.
Owned by the Stagecoach group, it is up for an award for its major programme of investment in making customers journeys easier with new technology, a more personal customer service, additional seats and extra parking at stations.
The company is up against the likes of Coca-Cola Enterprises, telecommunications company Openreach, DFS and Virgin Money.
South West Trains has been shortlisted for the Capita Customer Satisfaction Innovation Award.
Stagecoach rail franchise, East Midlands Trains, has also been shortlisted for two awards.
Tim Shoveller, managing director of Stagecoach Rail, said: “It’s great news that we have been have been shortlisted for three awards in the national Customer Service Awards.
“This is a fantastic tribute to our people who work hard day in, day out, to deliver great service for our customers.
“The experience our customers have when travelling on our trains is a key business focus for us, and therefore one of our highest priorities.
“We are therefore extremely pleased our investment in this area has been recognised by such a worthy organisation.”
The UK Customer Satisfaction Awards are organised by the Institute of Customer Service.
Winners are due to be announced at an awards ceremony on Tuesday (March 1).