Background: For the past couple years I have been an onsite contractor for a U.S. Federal Agency. The company that has employed me for the past couple years is at the end of their contract and will not be bidding on the follow-on contract. I have been hired by another contracting company to continue working on the tasks I've been doing at this agency for the past couple years. Essentially nothing has changed in my day to day since being hired by this new contracting company.
Question: How should I reflect these changes on my resume when the only things that have changed are that I make more money and there is a different company signing my paychecks?