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What martech companies use for Speech & voice APIs

Each line links its public proof and the date usedby last checked it.

15

Marketing Tech companies use Speech & voice APIs tools

11 confirmed 1 declared 3 observed

The most used: AssemblyAI (6), Deepgram (4), and Recall.ai (4).Data as of Nov 12, 2026

Ranking

Tools ranked by the Marketing Tech companies that use them. Ties go to the stronger proof.

Largest and best-proven users

Two labelled views of the same companies. Neither is a score.

Largest companies

By employee range. Size known for 15 of 15.

  • HubSpotConfirmed5,001–10,000 employeesChecked Nov 8, 2026
  • PodiumObserved1,001–5,000 employeesChecked Nov 11, 2026
  • CallRailConfirmed201–1,000 employeesChecked Nov 11, 2026

Strongest proof

Confirmed or declared: 12 of 15. This view filters what you read, never what is counted.

  • BIGVUConfirmed1–50 employeesChecked Nov 11, 2026
  • CallTrackingMetricsConfirmed51–200 employeesChecked Nov 11, 2026
  • PodsightsConfirmed1–50 employeesChecked Nov 11, 2026

Who uses each tool

Strongest proof first. A job post is a signal, the weakest proof.

  1. 1AssemblyAI6 companies · Checked Nov 11, 20266
    5 confirmed 1 observed

    AssemblyAI profile

  2. 2Deepgram4 companies · Checked Nov 11, 20264
    4 confirmed 0 observed

    Deepgram profile

  3. 3Recall.ai4 companies · Checked Nov 8, 20264
    3 confirmed 1 declared 0 observed

    Recall.ai profile

  4. 4Fish Audio1 company · Checked Nov 12, 20261
    0 confirmed 1 observed

    Fish Audio profile

  5. 5LiveKit1 company · Checked Nov 11, 20261
    0 confirmed 1 observed

    LiveKit profile

How usedby counts

11 confirmed 1 declared 3 observed

A company counts once per tool, at its strongest proof: confirmed (a case study, a named testimonial, a press release or the company's own account), declared (the company told usedby), observed (a vendor logo wall or customers page) or signal (a job post). Counts cover the companies on usedby, never the whole market.

No software vendor had to be left out.

Data as of November 12, 2026.

Questions

Which Speech & voice APIs tools do Marketing Tech companies use most?

AssemblyAI leads: 6 of the 15 Marketing Tech companies on usedby that use Speech & voice APIs tools use it. Next: Deepgram (4), Recall.ai (4), Fish Audio (1), and LiveKit (1). See AssemblyAI.

How many Marketing Tech companies use Speech & voice APIs tools?

15 Marketing Tech companies on usedby use at least one of 5 Speech & voice APIs tools. It counts the companies usedby tracks.

What proof backs these lines?

Of the 15 companies, each counted at its strongest proof: 11 confirmed, 1 declared, 3 observed and 0 known from a job post.

How does usedby build this ranking?

usedby counts each Marketing Tech company once per tool, from public proof: case studies, press releases, the company's own site or its declaration to usedby, vendor customer pages and job posts. Every line shows its proof and the date usedby last checked it.