Integral Ad Science (IAS) is an American publicly traded technology company that analyzes the value of digital advertising placements.

Integral Ad Science is known for addressing issues around fraud, viewability and brand risk, as well as TRAQ, a proprietary media quality score.

[7][8] The company is headquartered in New York City and has locations in Chicago, San Francisco, Berlin, London, Paris, Singapore, Melbourne, Sydney and Pune.

It was founded by Will Luttrell, Helene Monat, Foster Provost, Bryan St. John, Josh Attenberg and Kent Wakeford in 2009, with initial investment from Coriolis Ventures.

[4] In February 2014, Integral Ad Science acquired Simplytics, a UK-based mobile advertising analytics company.

[24] In February 2015, the company opened its Anti-Fraud Lab for research and development of fraud detection and prevention in Seattle, Washington.

[30] In June 2021, the company held an initial public offering of stock and began trading on the Nasdaq exchange under the ticker symbol IAS.