As of my last knowledge update in January 2022, there isn’t a universal accreditation system specifically tailored for social media agencies. However, social media agencies may seek recognition, certifications, or memberships from relevant organizations and platforms to demonstrate their expertise, adherence to industry standards, and commitment to ethical practices.

It’s important to note that the social media landscape is dynamic, and new developments may have occurred since my last update. Social media platforms and industry standards evolve, so agencies should stay informed about emerging accreditation opportunities and certifications relevant to their specific services and platforms.