OnSpot Data is a leading provider of mobile data insights and precise targeting solutions for advertising across multiple channels, without the use of cookies. OnSpot (Mobile Technology Corporation) is a registered location-data broker that offers a dedicated opt-out link — labeled "Privacy Opt-Out" in the site footer and as a "clicking here" link in the targeted-advertising section — so start there; the exact URL was not printed in the policy text, so verify the footer link. Their own Delete Act reporting says they responded to requests in a median of 4 and mean of 25 days. You can also email privacy@onspotdata.com or mail a California Privacy Rights Notice request to 7173 S Havana St, Suite 600-235, Centennial, CO 80112 (allow up to 60 days for that notice).