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Blockthrough helps the world’s leading media brands restore a healthier relationship with the 225 million users who filter their online ad experience. Our real-time ad filtering technology ensures that only creatives that meet the highest ad quality standards such as Acceptable Ads and Better Ads are served to opted-in users—thus delivering respectful, relevant, nonintrusive, and consent-based advertising. Blockthrough is the most popular ad filtering solution among the Comscore Top 150, and our customers include brands like AccuWeather, Freestar, CafeMedia, Healthline, and Future plc. Today, our technology powers more than 10,000 sites across the globe, monetizing over 2 billion pageviews each month. For its innovative technology, strong revenue growth, and contribution to the online publishing ecosystem, Blockthrough has been recognized with awards from analysts and trade publications including Deloitte, The Globe and Mail, Great Place to Work, Adweek, AdExchanger, Digiday, The Drum, and AdMonsters. Blockthrough is a TCF v2.0 certified vendor and a member of Interactive Advertising Bureau (Canada), associate member of Association of Online Publishers (UK), and community member of Prebid.

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Blockthrough Questions

The Blockthrough annual revenue was $11 million in 2024.

Stephen Williams is the COO of Blockthrough.

62 people are employed at Blockthrough.

Blockthrough is based in Toronto, Ontario.

The NAICS codes for Blockthrough are [54181, 518, 541511, 541, 5418, 51, 5415, 54151, 541810, 54].

The SIC codes for Blockthrough are [73, 738, 737].

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