Glossary/Adtech & Programmatic/Trustworthy Accountability Group (TAG)
Adtech & Programmatic
Trustworthy Accountability Group (TAG)
An industry initiative that certifies companies for fighting ad fraud, malware, and piracy and promoting supply-chain transparency.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
The Trustworthy Accountability Group (TAG) is an industry initiative that certifies companies for their efforts to fight ad fraud, malware, and piracy and to promote supply-chain transparency. Participating advertisers, agencies, publishers, and ad tech firms can earn certification by meeting TAG's guidelines, signaling trustworthy practices to business partners.