Illumin, formerly known as AcuityAds, is a privately held Canadian advertising company founded in 2009. Headquartered in Canada, the company has a workforce of approximately 260 employees. Illumin specializes in providing full-funnel advertising solutions through data-driven advertising. Their primary product is RTB (Real-Time Bidding) and programmatic advertising, which allows advertisers to bid on ad space in real-time based on specific criteria and user data. Illumin operates globally and offers a range of advertising services to clients across various industries.