DQS is "an independent and competent management partner for companies of every size and all business sectors" (Company Website). They provide certification, inspection and assessment for a wide variety of management systems and processes, for purposes of "risk management, information security, and business excellence" (Company Website). DQS is a part of the DQS-UL Group, after a merger with the American company Underwriters Laboratories.
On its website in its "Customer Database," DQS lists 428 customers for the Islamic Republic of Iran, including many companies active in Iran's sanctioned oil and gas industry.
More serious are DQS's ties to Amin Industrial Complex, an Iranian company and "leading manufacturer of cooler and air conditioner in Iran" (Amin Website). Amin Industrial Complex was singled out in the UN's report on "Individuals and Entities Involved in Nuclear or Ballistic Missile Activities," where Amin Industrial Complex was described as having "sought temperature controllers which may be used in nuclear research and operational/production facilities." Furthermore, the company "is owned or controlled by, or acts on behalf of, the [Iranian] Defense Industries Organization" (UN Report).
Amin Industrial Complex prominently displays a scanned quality certification certificate from DQS (Amin Website), revealing that DQS has guaranteed the efficient operation of a company that is involved in procuring technology for the Iranian nuclear program. Amin Industrial Complex is openly listed on DQS's Customer Database (Company Website).