Gosport MP Caroline Dinenage is urging companies to sign up to the Defence Discount Service.
The scheme gives members of the Armed Forces discounts in store and online when they show their Defence Privilege Cards.
A number of high-profile businesses have already signed up.
Ms Dinenage said: ‘This is a very small way to say thank you to our men and women who do, and who have done, so much for us and I hope local businesses will be keen to sign up.’
For details of who can apply and register and participating shops, visit defencediscountservice.co.uk