Subprocessors
Third-party providers that process data on Kewbuilt's behalf (Client Service Agreement, Section 7.3)
Last updated: November 4, 2026. Kewbuilt emails each client's Designated Contact before a new provider begins processing Client Data.
Providers that process client and caller data
| Provider | What it does | Data it handles |
|---|---|---|
| Retell AI | Voice-AI platform that answers calls, records and transcribes them, and runs the receptionist's conversation. Retell's own providers include OpenAI (language model) and its speech and voice-synthesis vendors; see Retell's published subprocessor list. | Call audio, transcripts, caller phone numbers, call summaries |
| Twilio | Telephony — phone numbers and call routing | Caller and business phone numbers, call metadata |
| Make | Automation — moves call results into the portal and sends notifications | Transcripts, summaries, call metadata |
| Airtable | Data storage behind the client portal | Call records, transcripts, summaries, recordings (30 days), client configuration |
| Softr | Client portal | Call records and recordings shown to the client's authorized users |
| Google Workspace | Email — notifications, summaries, support | Notification emails containing call summaries and caller details |
Providers for Kewbuilt's own operations
These handle Kewbuilt's business data, not the calls to clients' lines.
| Provider | What it does | Data it handles |
|---|---|---|
| Stripe | Payments and invoicing (Stripe acts as an independent controller for payment data under its own privacy policy) | Client billing details and payment method (card numbers are held by Stripe only) |
| Cal.com | Scheduling for intro calls with Kewbuilt (Kewbuilt's intro calls only — not client calls) | Prospect name, email, phone, booking time |
| Cloudflare | Website hosting, DNS, and cookieless analytics | Website visitor data (IP address, pages viewed); no call data |
Clients' own appointment-booking systems are operated under the client's account and are not Kewbuilt subprocessors.