Technologies / AssemblyAI / WellSaid Labs
Companies using AssemblyAI and WellSaid Labs
1 company in our data has public evidence for both AssemblyAI and WellSaid Labs, and 1 name both in their own subprocessor list. Each company below links to the source for every claim. Our coverage is partial, so this is not everyone.
The companies
Strongest evidence first: a company naming both in its own subprocessor list comes before one seen on its website or in job postings.
Subprocessor listPrivacy policyWebsiteJob postings
| Company | AssemblyAI | WellSaid Labs |
|---|---|---|
The two technologies
AssemblyAI
AI and LLM providersAssemblyAI-TTS-1 is a text-to-speech model. It is built for voice agents on live calls.
Summarized from assemblyai.com on 8 Nov 2026.
1% of the 130 companies we see using AssemblyAI also show the other.
All 130 companies using AssemblyAI115 name it as a subprocessorMore in AI and LLM providers
WellSaid Labs
AI and LLM providersWellSaid is an AI voice product that turns written scripts into realistic voiceovers, made in partnership with professional voice actors. It is used to create voiceover content such as marketing campaigns, tutorial videos, product launches, social media ads, and corporate training.
Summarized from wellsaid.io on 8 Nov 2026.
50% of the 2 companies we see using WellSaid Labs also show the other.
All 2 companies using WellSaid LabsMore in AI and LLM providers
Other pairs
Companies with their own evidence for both.
Questions
How many companies use both AssemblyAI and WellSaid Labs?
1 company in StrataDB's data has public evidence for both, and 1 of them name both in their own subprocessor list, the strongest evidence we hold. Our coverage is partial, so the real number is higher.
Which companies use AssemblyAI and WellSaid Labs?
Synthesia. Each one links to the evidence behind it.
How does StrataDB know a company uses AssemblyAI and WellSaid Labs?
From four kinds of public evidence: subprocessor lists, privacy policies, website code and job postings. Each is kept apart with its source and the date we saw it. A company missing here means we found no evidence, not that it does not use them.
Find every company using AssemblyAI and WellSaid Labs
See the full list with the source for each company, and run the same lookup for any technology from the API, Claude or your browser.
- Every company and vendor, with its public source
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