Are there any major rental car companys that you can be under 25?

Question

and rent a car?

Answer 1

Listen to the Shadow

Watch out for extra charges - they may group it under Insurance, but you can be paying over $20.00 MORE per day because of your age.

Go on the web and look for small rental companies - they tend to be more flexible.

Answer 2

There is no generic answer to your question because the policy can vary by city even for the same company. Avis, for example, has a minimum age of 21 except in Connecticut, Washington DC, Iowa and Idaho, and some locations in New Jersey, but only  at "participating locations". That probably means that some franchised operations don't go along with it.

You may have to pay an additional daily fee even if someone will rent to you. Check carefully. These can be expensive.

Unfortunately, you'll need to check the websites, and in some cases, call the rental companies to check the policy for the city that you're visiting.