3Play Media is a media accessibility platform based in Boston, Massachusetts, providing closed captioning, audio description, and subtitling services for television, video content, and podcasts.

The acquisition led to Captionmax's rebranding as 3Play Media on September 21, 2022.

[1][2] Captionmax, established in 1993, offered closed captioning, translation, video description, and as-broadcast scripts to over 450 customers, including major broadcast and cable TV networks, studios, educational institutions, and corporations.

Captionmax's acquisition of National Captioning Canada in March 2021 further expanded its media accessibility services.

[3] 3Play Media's cloud-based platform combines machine learning, proprietary data sets, and automatic speech recognition with human review for accurate accessibility solutions.