According to the 2025 Dollar Rent A Car Franchise Disclosure Document, franchisees may enter into agreements that involve other brands. Specifically, the document mentions Hertz and Thrifty Rent-A-Car System, LLC, as these brands can be part of a multiple-brand franchising addendum. This addendum allows a franchisee to operate a Dollar Rent A Car business alongside a Hertz and/or Thrifty business.

The Multiple-Brand Franchising Addendum outlines the terms and conditions for operating multiple brands. This includes details about the territory covered by the addendum, which aligns with the territories defined in the individual franchise agreements for Hertz, Dollar Rent A Car, and Thrifty. The addendum's term is concurrent with the terms of these franchise agreements. Franchisees are obligated to pay all fees, charges, and expenses as stipulated in each of the franchise agreements and their respective operations guides.

However, franchisees are restricted from using the trademarks of Hertz, Dollar Rent A Car, and Thrifty in combination for advertising, promotion, or marketing, unless explicitly authorized. Similarly, multiple-branding, which refers to operating the businesses together, is prohibited without specific authorization. Each business must be distinctly branded using its respective marks in a way that is visible to customers, adhering to the guidelines in the franchise agreements and operations guides. Unless otherwise approved, franchisees cannot operate these brands from the same building at off-airport locations.