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.

Methodology · How verification works

Companies and providers

Claimed suppliers appear first so buyers can start with listings the company has taken ownership of. Payment does not buy this order.

  • 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,

  • HappyScribe

    Turn every meeting into notes and decisions you can act on. AI transcription in 150+ languages, SOC 2 & GDPR, made in Europe. HappyScribe publishes HappyScribe AI Subtitles as name

  • 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

  • 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 pub

  • Microsoft

    Microsoft Corporation sells Windows, Azure, Microsoft 365 and Copilot AI products. Public pages cover cloud, productivity and developer APIs used by enterprises and consumers. Micr

  • 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 publishes Rev AI

  • Sonix

    Transcribe audio and video to text in minutes with 99% accuracy. Try Sonix free — no credit card required. Sonix publishes Sonix Automated Subtitles as named AI products. Sonix is

  • 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 publishes Trint AI T

  • VEED

    Create talking heads, edit with AI, dub videos, and add subtitles — all in VEED. VEED publishes VEED Auto Subtitle Generator as named AI products. VEED is used for Captioning work.

  • Verbit

    Get transcripts and captions that are purpose-built for law firms, courts, media & entertainment, higher education, and more. Verbit publishes Verbit Caption Live as named AI produ

  • Wordly

    Wordly provides real-time AI translation, captions, transcripts, and summaries for meetings and events, making them more accessible, inclusive, and engaging. Wordly publishes Wordl

Products

Claimed products appear first. Ranking packs and payment do not change this list.

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.