Josh Miller

Co-Founder and Co-CEO 3Play Media

Last Reviewed: September 26, 2026

Executive Summary

Josh Miller is co-founder and co-CEO of 3Play Media, a Boston company that provides captioning, transcription, audio description and localization for video and other media. He shares the chief executive role with fellow co-founder Chris Antunes. Miller leads growth and the go-to-market teams; Antunes leads operations and product. Both have held these roles since 2008. The company began in Cambridge, Massachusetts, in 2007 and reports more than 10,000 customers. Its platform combines AI automation with a marketplace of human language experts. It is backed by Riverside Partners, and in 2022 it bought the captioning provider Captionmax.

Career Highlights

• Co-founded 3Play Media, incorporated in 2007 in Cambridge, Massachusetts, and has led its growth and go-to-market teams since 2008.
• Co-CEO with Chris Antunes, at a company that reports more than 10,000 customers across media and entertainment, higher education, government, enterprise and eLearning.
• As co-CEO, led 3Play’s February 2022 acquisition of Captionmax, including its subsidiary National Captioning Canada, which extended the company into live captioning and across North America.
• Sits on the Consumer Technology Association’s Content and Entertainment Council and on the CTA Foundation Board of Trustees.

Professional Journey

Before 3Play, Miller worked in media and telecom consulting, according to his company biography. 3Play Media was incorporated in 2007 in Cambridge, Massachusetts. Its 2011 Form D names a founding group of Christopher Antunes, Christopher Johnson, Jeremy Barron and Joshua Miller, with Antunes signing as President. The company’s own account dates Miller’s leadership of its growth to 2008.

3Play’s services now span closed captioning, transcription, audio description and localization. Miller and Antunes now run it as co-CEOs, with Miller responsible for customers and go-to-market and Antunes for operations and the product platform.

Riverside Partners, a private equity firm, is an investor; the date of its investment was not found. In February 2022, 3Play acquired Captionmax, a captioning and media accessibility provider, together with its Canadian subsidiary National Captioning Canada. Terms were not disclosed. Miller said at the time that the combined company would offer customers “more options” while keeping the enterprise experience they expected. The release said the deal widened 3Play’s footprint across North America and sped up its entry into live captioning.

In February 2025 the co-CEOs promoted two executives, one of them Lily Bond as Chief Growth Officer. Miller tied the promotions to combining AI technology with human expertise across accessibility and localization. The company is headquartered at 255 State Street in Boston. Outside 3Play he sits on the Consumer Technology Association’s Content and Entertainment Council and the CTA Foundation Board of Trustees, where he advocates for making content accessible across languages and media.

Education

No education record was found in any first-party or primary source reviewed.