# Captioning Vendors

**Source**: https://accessibility.web-resources.upenn.edu/resources/captioning/captioning-vendors
**Parent**: https://accessibility.web-resources.upenn.edu/resources/captioning

While this is not an exhaustive list, these companies are most frequently used by Penn constituents:

## Automatic captioning tools and services

- [3PlayMedia(link is external)](https://3playmedia.com)
- [Rev(link is external)](https://rev.com)
- [Microsoft Stream(link is external)](https://docs.microsoft.com/en-us/stream/portal-autogenerate-captions) (free)

## CART services (live captioning)

- [Automatic Sync/Caption Sync(link is external)](https://www.automaticsync.com/captionsync/service-list/real-time-captioning/)
- [AI Media(link is external)](https://www.ai-media.tv/products/live-content/live-captions-cart/)
- [CaptionAccess(link is external)](https://www.captionaccess.com/services/#cart)
- [CaptionFirst(link is external)](https://captionfirst.com/services/)