Integral Ad Science Holding Corp. operates as a digital advertising verification company in the United States, the United Kingdom, Ireland, France, Germany, Spain, Italy, Singapore, Australia, Japan, India, and the Nordics. The company provides IAS Signal, a cloud-based technology platform enables customers to maximize their ROAS by verifying their ads; and deliver independent measurement and verification of digital advertising across devices, channels, and formats, including desktop, mobile, connected TV (CTV), social, display, video, and emerging media. It offers also digital media quality solutions; ad fraud detection and prevention, viewability and attention, brand safety and suitability, contextual targeting, inventory yield management, and reporting. In addition, the company offers Quality Impressions, a metric that helps ensure media quality standards; context control solution that delivers contextual targeting and brand suitability capabilities; and pre-bid optimization solutions, post-bid measurement solutions, and publisher solutions. It serves advertisers and agencies, publishers, and supply-side platforms SSPs. The company was founded in 2009 and is headquartered in New York, New York.