Captioning companies, products & suppliers
Captions and subtitles for media as the product, not full accessibility suites or transcription for meetings. Jobs: live captions; subtitle files; burn-in captions.
What is Captioning?
Captions and subtitles for media as the product, not full accessibility suites or transcription for meetings. Jobs: live captions; subtitle files; burn-in captions.
What problems does it solve?
Video still ships without captions the user can rely on.
Typical business use cases
- Live captions
- Subtitle files
- Burn-in captions
Important capabilities
- Accuracy
- Languages
- Formats (SRT/VTT)
What buyers should evaluate
- Accuracy on your media
- Live latency
- Speaker IDs optional
Risks and governance considerations
Captions that misstate safety-critical speech.
Procurement checklist
- Accuracy
- Live vs offline
- Retention of media
Relevant AI Trustmark assurance
AI Trustmark independent findings appear only when an assessment or certificate exists. Category membership does not imply verification.
Products and providers
Open a product profile for its catalogue details, or use the provider link for the company profile. Claimed listings appear first, then by name. Payment never changes the order.
By Ava
Ava offers free live captions or transcriptions for videoconferencing (including Zoom and Meet) and in-person meetings. In one click, Ava accurately captions any meeting, lecture,
By HappyScribe
Turn every meeting into notes and decisions you can act on. AI transcription in 150+ languages, SOC 2 & GDPR, made in Europe. Free to try. HappyScribe AI Subtitles is HappyScribe's
By Kapwing
Generate full video projects from a single prompt using Kapwing. Join over 30 million modern creators who trust Kapwing to create, edit, and grow their content on every channel. Ka
By Maestra
Unlock your global audience with Maestra AI: Lightning-fast AI-powered transcripts, subtitles, and multilingual voiceovers in 125+ languages, on demand or in real-time. Maestra AI
By Microsoft
Azure Speech in Foundry Tools, formerly Azure AI Speech, is Microsoft's speech AI service. It provides prebuilt and customisable multilingual models for speech-to-text, text-to-spe
By Rev
Built for investigations that hold up under court. Rev’s legal AI platform turns digital evidence into verified, citable findings to help you manage your case. Rev AI Captions is R
By Sonix
Transcribe audio and video to text in minutes with 99% accuracy. 54+ languages, AI summaries, and speaker detection. Try Sonix free — no credit card required. Sonix Automated Subti
By Trint
Trint’s AI powered software quickly transcribes video & audio files to text. Transcribe, edit, share and collaborate to unleash your team’s productivity. Trint AI Transcription Pla
By VEED
Generate and edit in one workflow. Create talking heads, edit with AI, dub videos, and add subtitles — all in VEED. Built for marketers and solopreneurs. VEED Auto Subtitle Generat
By Verbit
Get transcripts and captions that are purpose-built for law firms, courts, media & entertainment, higher education, and more. Verbit Caption Live is Verbit's software product, from
By Wordly
Wordly provides real-time AI translation, captions, transcripts, and summaries for meetings and events, making them more accessible, inclusive, and engaging. Wordly AI Translation
Products
Claimed products appear first. Ranking packs and payment do not change this list.
- Ava Captions· Ava
- Azure AI Speech· Microsoft
- HappyScribe AI Subtitles· HappyScribe
- Kapwing AI Subtitle Generator· Kapwing
- Maestra AI Subtitle Generator· Maestra
- Rev AI Captions· Rev
- Sonix Automated Subtitles· Sonix
- Trint AI Transcription Platform· Trint
- VEED Auto Subtitle Generator· VEED
- Verbit Caption Live· Verbit
- Wordly AI Translation and Captions· Wordly
Related categories
Relevant procurement and assurance guides
Frequently asked questions
What is Captioning?
Captions and subtitles for media as the product, not full accessibility suites or transcription for meetings. Jobs: live captions; subtitle files; burn-in captions.
What should not be listed as Captioning?
Products whose buyer job is transcription, accessibility tools, or speech assistance. Those belong on their own category page so search queries are not split.
Has AI Trustmark independently assessed every Captioning supplier?
No. A category listing is descriptive. Independent assessment is shown only on company or product pages that carry Trustmark evidence.
What model or provider changes should a buyer insist on being told about?
Material change usually includes a new model family, new region, new subprocessor, new write-capable tool, or a change that affects logging, privacy or human oversight. Those changes should trigger evidence refresh rather than a silent release.
How should buyers verify where AI customer data is processed?
Ask for the named processing locations, cloud regions and any subprocessors that see prompts, files or outputs. A directory listing is not evidence of residency. Independent assessment records the locations that were in scope on the assessment date.
Does a TrustMark on one product cover the rest of the company?
No. Independent assessment is scoped to the named organisation and, where relevant, the named product. Category pages list suppliers as a topic label. They do not imply that every listed company has been assessed.
What incident-handling evidence is useful for AI suppliers?
Buyers should see how AI-specific failures are detected, contained and notified — including unsafe outputs, data leakage and unauthorised agent actions. An incident policy that never mentions models, prompts or tools is incomplete for this class of product.
What security testing evidence should buyers request for an AI product?
Ask what was tested, against which version, whether prompt-injection, data-exfiltration and tenant isolation were in scope, and where failed prompts were stored. A generic ISO certificate or a vendor scanner screenshot is not by itself an AI TrustMark assessment.