Private company

CaptionMax

Logo: 3Play Media, Public domain, via Wikimedia Commons3

American audio transcription company

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 company was founded by Josh Miller and Chris Antunes in 2007.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1993Founded1
Captionmax neon sign
Photo: CaptionmaxLLC, CC BY-SA 4.0, via Wikimedia Commons5

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 company was founded by Josh Miller and Chris Antunes in 2007.2

Corporate structure

CaptionMax sits at the top of its group. 2 entities on record. Switch between the flow chart and the network, and select any entity to see its details.

  • CaptionMax
    • National Captioning Canada Subsidiary

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

The story

Founded in 2007, 3Play Media developed a range of accessibility solutions for sectors including media and entertainment, education, corporate, government, and e-learning. The company's acquisition of Captionmax, a media accessibility provider, in February 2022 expanded 3Play Media's offerings in live captioning and media accessibility services. The acquisition led to Captionmax's rebranding as 3Play Media on September 21, 2022.

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.

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

From Wikipedia’s article on 3Play Media, shared under CC BY-SA 4.0.4

Products and brands

  • closed captioning

Listed on Wikidata.1

Subsidiaries and ownership

Parent company

  • 3Play Media since Feb 2022

Subsidiaries

  • National Captioning Canada since Mar 1, 2021

From Wikidata.1

Acquisitions

  1. Mar 1, 2021National Captioning Canada became a subsidiary1

Timeline

  1. Feb 2022Acquired Acquired by 3Play Media1
  2. 1993Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5