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UK GDPR Article 28

Subprocessors

Stable URL: /subprocessors • Last reviewed: September 2026

Standard UK SaaS terms notice: This list is maintained alongside our Privacy Policy and DPA template (standard UK SaaS terms, last reviewed September 2026, not bespoke legal advice).

Voxflow engages the following third parties to process personal data on behalf of our customers. We notify customers of any change to this list before it takes effect, per the DPA change-notice clause. Anything not listed here does not touch customer data.

Amazon Web Services EMEA SARL (Connect + Lex + S3 + RDS + EC2)

purpose:
Telephony ingress, speech capture, call-recording storage, primary relational database (RDS PostgreSQL), API hosting (EC2), secrets (KMS)
data:
Call audio recordings, contact-flow metadata, consent evidence, call records, tenant ledgers, application state
location:
eu-west-2 (London, UK); one legacy +44 number (+44 20 4640 4552: legacy, migration in progress) still routes via us-west-2 pending migration

Supabase Inc.

purpose:
User authentication, identity directory, and session token management
data:
User authentication identities (email addresses, encrypted auth credentials, user UUIDs)
location:
EU region

Groq

purpose:
Transient LLM inference and hosted Whisper speech-to-text
data:
Call content in flight — processed, not retained
location:
US (confirm against Groq DPA at solicitor review)

Stripe Payments UK Ltd

purpose:
Subscription billing and metered usage
data:
Billing identity, payment status, usage minutes
location:
UK / EU

Resend

purpose:
Transactional email (policy confirmations, invoices, alerts)
data:
Recipient email, message content, delivery metadata
location:
US

Sentry

purpose:
PII-scrubbed error monitoring (frontend + API)
data:
Scrubbed error events only — emails, phones, PINs redacted before send
location:
Confirm org region at solicitor review

PostHog (EU cloud)

purpose:
First-party product analytics, allow-listed non-identifying events only
data:
Pseudonymous events, no IP capture, localStorage state (no tracking cookies)
location:
EU (verify POSTHOG_HOST in production)

Crisp

purpose:
In-app support chat
data:
Chat transcripts, visitor email where provided
location:
EU

Vercel

purpose:
Frontend hosting for voxflow.cc (edge network)
data:
Account data in transit, TLS termination logs
location:
US / EU (global edge)

Cloudflare

purpose:
DNS, bot protection (Turnstile), email routing for voxflow.cc aliases
data:
DNS queries, Turnstile tokens, routed mail headers
location:
Global (security/DNS — limited personal data)

Microsoft (Edge TTS)

purpose:
Dashboard simulator voice synthesis only — never caller audio
data:
Operator-entered simulator text
location:
Cloud (simulator scope only)

Google Sheets (optional)

purpose:
Per-tenant call-log mirror only, never the source of truth
data:
Call outcome rows for tenants that enable mirroring
location:
Customer's Google account region

Questions: Privacy Policy • Full processor terms in the DPA template (available on request).