The International Accreditation Service (IAS) is a nonprofit, public-benefit corporation that has been providing objective evidence of organizations operating at the highest level of ethical, legal, and technical standards since 1975. As one of the leading accreditation bodies in the United States, IAS accredits a wide range of companies and organizations, including governmental entities, commercial businesses, and professional associations. Their accreditation programs are based on recognized national and international standards, ensuring domestic and global acceptance.

IAS is a member of the ICC Family of Solutions and maintains signatory status in global multilateral recognition arrangements under organizations such as Asia Pacific Accreditation Cooperation (APAC), International Accreditation Forum (IAF), and International Laboratory Accreditation Cooperation (ILAC). They offer certification in various domains, including aerospace quality management, building department recognition, fabricator inspection, FDA third-party certification, forensic labs and inspection agencies, medical laboratories, special inspection agencies, testing laboratories, and more. With a commitment to impartiality and ethical standards, IAS provides reliable and accessible accreditation services to organizations worldwide.