illumin Holdings Inc., a technology company, provides digital media solutions in the United States, Canada, Europe, Latin America, and internationally. The company offers a programmatic marketing platform that enables advertisers to connect with their audiences across online display, video, social, and mobile campaigns. Its platform also allows advertisers to manage their purchasing of online display advertising in real-time using programmatic ad buying. In addition, the company offers illumin, an advertising automation technology that provides planning, media buying, and omnichannel intelligence; and allows advertisers to map their consumer journey playbooks across screens and execute in real-time using programmatic technology. It serves Fortune 500 enterprises and small to mid-sized businesses. The company was formerly known as AcuityAds Holdings Inc. and changed its name to illumin Holdings Inc. in June 2023. illumin Holdings Inc. is headquartered in Toronto, Canada.