• DAS is the best ISO registrar I have worked with in my 20-year career. Safi, Lillian, and the DAS Auditors have improved our business processes through compliance audits immensely. Thanks for the great job.”-
  • (DAS) …… is a thorough and fair auditor. He (auditor) offers great advice, and he is friendly and helpful.”- Brandon Napier : P & N Machine Company, Inc.
  • Thank you very much for working with our schedule. I was able to learn much needed information from the experience. I appreciate the understanding and working with our situation as a growing business. I look forward to our next audit where (DAS) can see the progress and steps we have taken to continue our improvement.” –Brian Harpold; Numerical Precision
  • Always very professional and in tune with our operation and impact they have on our daily work flow”- Ken Marshall ; Cybershield of Texas
  • My experience with DAS Certification has been excellent each and every time. We are very pleased with their service.”- Maria Booth ; Port Authority of San Antonio
  • I would like to take the time to say thank you for expediting this for us.  Thank you for your time, effort, and professionalism over the past few weeks. In spending a day following you, I REALLY learned more about the ISO requirement itself than I thought I knew. Your input and advice have been heard and I look forward to seeing you down the road (with plenty of improvements of course)."   James Reynolds Quality Assurance Manager Turpen & Associates, LLC