Refinition is a data company that empowers businesses to understand and build relationships with real people. They specialize in data-driven target audience identification and delivery for multi-device, multi-channel campaigns. Refinition's platform co... Refinition is a location-data ad-tech company with no self-service opt-out form described in its policy text; you must email optout@refinition.com (use subject line "Do not sell my personal information" for a sale opt-out) or call (877) 673-3463 ext. 3. The policy mentions a "CCPA Opt-Out" link but gives no URL, and it says it may require proof of identity before acting. Because opt-outs here are often tied to device/advertising IDs, re-check periodically and also reset your mobile ad ID and use the DAA/NAI opt-out tools.