How do you create an effective RFP for software testing? Protect your organization and your career by requiring software testing service companies to use testers who have passed ASTQB’s official American English ISTQB Certification exam. At a minimum, add this language to your software QA RFPs: The testers involved in this project must appear on the Official U.S. List of Certified & Credentialed Software Testers found at https://atsqa.org/certified-testers. See the details and additional ideas on our page on Request for Proposal (RFP) for Testing Services.