# Who uses Synthflow?

14 companies use Synthflow on usedby: 7 confirmed, 7 observed and 0 signals. 14% of them are in Investment & VC. Confirmed or observed customers include Freshworks, Accel and Aizee. Latest check 2026-10-05: 11 of 14 companies checked, from 9 public sources.

> No-code AI voice agent builder

- Category: [AI Phone Agents](https://www.usedby.ai/tools/category/ai-phone-agents.md)
- Website: [synthflow.ai](https://synthflow.ai/)

## Customers

Every line is a customer, at one of three proof levels: confirmed (a case study, a named quote or a press release), observed (the vendor shows the company on its own pages) or signal (a job post shows the company's employees use the tool, the weakest proof). The first public proof is the first public page we found, not an adoption date.

| Company | Industry | Proof | First public proof | Source |
|---|---|---|---|---|
| [Freshworks](https://www.usedby.ai/companies/freshworks.md) | Sales Tech & CRM | Confirmed | — | [synthflow.ai](https://synthflow.ai/pricing), captured 2026-10-05 |
| [Accel](https://www.usedby.ai/companies/accel.md) | Investment & VC | Observed | — | [synthflow.ai](https://synthflow.ai) |
| [Aizee](https://www.usedby.ai/companies/aizee.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/lead-reactivation), captured 2026-10-05 |
| [Kleindienst Group](https://www.usedby.ai/companies/kleindienst-group.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/kleindienst-group-scaled-lead-outreach-10x-with-voice-ai), captured 2026-10-05 |
| [Medbelle](https://www.usedby.ai/companies/medbelle.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/freshworks-x-synthflow), captured 2026-10-05 |
| [Peak Demand](https://www.usedby.ai/companies/peak-demand.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/data-collection), captured 2026-10-05 |
| [Smartcat](https://www.usedby.ai/companies/smartcat.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/sales-qualification), captured 2026-10-05 |
| [Thryv](https://www.usedby.ai/companies/thryv.md) | — | Confirmed | — | [synthflow.ai](https://synthflow.ai/customer-stories/thryv-turns-directory-assistance-into-a-24-7-channel-with-voice-ai), captured 2026-10-05 |
| [Altamira](https://www.usedby.ai/companies/altamira.md) | — | Observed | — | [synthflow.ai](https://synthflow.ai/pricing), captured 2026-10-05 |
| [Hostinger](https://www.usedby.ai/companies/hostinger.md) | — | Observed | — | [synthflow.ai](https://synthflow.ai/pricing), captured 2026-10-05 |
| [Nellis Auction](https://www.usedby.ai/companies/nellis-auction.md) | — | Observed | — | [synthflow.ai](https://synthflow.ai/pricing), captured 2026-10-05 |
| [Signant Health](https://www.usedby.ai/companies/signant-health.md) | — | Observed | — | [synthflow.ai](https://synthflow.ai/pricing), captured 2026-10-05 |
| [Singular](https://www.usedby.ai/companies/singular.md) | Marketing Tech | Observed | — | [synthflow.ai](https://synthflow.ai) |
| [Atlantic labs](https://www.usedby.ai/companies/atlantic-labs.md) | Investment & VC | Observed | — | [synthflow.ai](https://synthflow.ai) |

## Published results

Reviewed stories only. A figure is the vendor’s or the customer’s claim, quoted with its label; usedby did not measure it.

- [Smartcat](https://www.usedby.ai/case-studies/smartcat-synthflow.md): **-70%** Booking cost (Vendor case study, captured by usedby 2026-10-05)
- [Peak Demand](https://www.usedby.ai/case-studies/peak-demand-synthflow.md): **+80%** Faster data submission (Vendor case study, captured by usedby 2026-10-05)
- [Kleindienst Group](https://www.usedby.ai/case-studies/kleindienst-group-synthflow.md): **30K+** Calls processed per month (Vendor case study, captured by usedby 2026-10-05)
- [Thryv](https://www.usedby.ai/case-studies/thryv-synthflow.md): **20K+** Directory assistance calls handled per month by the AI agent (Vendor case study, captured by usedby 2026-10-05)

## Before you buy

Read on Synthflow’s own pages; the quote was found on the cited page.

| Fact | Value | Source | Checked |
|---|---|---|---|
| Data processing terms | A data processing agreement is available. | [security.synthflow.ai](https://security.synthflow.ai/) | 2026-10-07 |

## Alternatives

- [Regal](https://www.usedby.ai/tools/regal.md): 40 public customers. Compare: https://www.usedby.ai/compare/regal-vs-synthflow.md
- [Retell AI](https://www.usedby.ai/tools/retell-ai.md): 32 public customers. Compare: https://www.usedby.ai/compare/retell-ai-vs-synthflow.md

More: https://www.usedby.ai/alternatives/synthflow.md

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Source: https://www.usedby.ai/tools/synthflow · How we check: https://www.usedby.ai/methodology