- CaptionLit
 - Specialises in videocaptioning, transcription, real-time, and CART services. - CaptionMax
- Offers closed captioning, subtitling, webcast captioning, and audio description.
- Cheetah International
- Maker of CAPtivator Online: real-time video captioning and subtitling software for live captioning.
- Computer Prompting and Captioning Co.
- Closed captioning, subtitling, and teleprompting software since 1986. We also operate a captioning and subtitling service.
- Line 21 Media Services
- Specialising in video closed captioning, subtitles, transcripts, and scripting post production.
- Media Captioning Services, Inc.
- Produces real-time closed captioning for local and national cable television news networks.
- Precision Captioning
- Provides captioning in a variety of styles.
- UnitedCaption
- Provides closed captioning services throughout the U.S. and the world.
- Via Productions
- Offers script transcription and closed captioning services for film and television.
- VITAC
- Provides realtime captioning of live television programmes and events and offline captioning of prerecorded programmes.
- White-Boucke Publishing
- Publishes general non-fiction books and provides realtime closed captioning services.
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