Legal

Subprocessors

Last updated: 11 June 2026

Nexus Ledger uses a small set of carefully selected service providers ("subprocessors") to operate, host, secure, and support the platform. This page lists each subprocessor, what they do, what data they touch, and where they process it. We give Customers at least 30 days' advance notice before adding or replacing a subprocessor, and a right to object on reasonable grounds.

None of the subprocessors below use Customer Data to train or improve their own AI models. Where a subprocessor is on our list because it has model-inference capabilities, our agreement with that subprocessor expressly prohibits training on Customer Data and is a precondition to processing.

Primary subprocessors

These vendors are required to deliver the core service. Customer Data is processed by them as part of normal operation.

VendorActivityData categoryLocation
Supabase Inc.Managed Postgres, authentication, object storage, edge functionsAll Customer Data and account dataEU region — Stockholm, Sweden (eu-north-1) · KSA-resident self-hosted option on Pro and Enterprise tiers (custom engagement)
Vercel Inc.Web application hosting (Next.js), edge serving, static assetsAccount data, page-render telemetry; Customer Data passes through during requests but is not persistedGlobal edge network; Customer documents are stored only in the EU database/storage
Hetzner Online GmbHExtraction-worker host — polls queued voucher batches and runs the OCR + AI extraction pipelineCustomer Data in flight during extraction; not persisted long-termGermany (EU)
Anthropic PBCLarge-language-model inference for document classification, field extraction, journal-entry proposal, AI Inbox, narrative generationDocument text and extracted fields submitted as model prompts; responses returned for processingProvider US/EU regions per their API; Customer Data is not used for model training under our agreement
Mistral AI SASOptical character recognition (OCR) and layout extraction on uploaded PDFsPage-image submissions; OCR text returned for downstream processingFrance (EU) · Customer Data is not used for model training under our agreement
Speechmatics LtdSpeech-to-text transcription for the voice assistant (Growth tier and above; only when voice features are used)Microphone audio of the user's spoken query; transcript returned for processingUnited Kingdom
ElevenLabs Inc.Text-to-speech synthesis and conversational-voice transport for the voice assistant (Growth tier and above; only when voice features are used)AI assistant reply text submitted for audio synthesis; voice-session audio. No documents.United States
Resend, Inc.Transactional email delivery (account, billing, trial-end notifications)Recipient email address, subject and body of transactional emailsEU region

Secondary subprocessors

These vendors support observability and product analytics. They do not host or persist Customer documents. Customers can opt out of product analytics for their entire workspace.

VendorActivityData categoryLocation
Sentry GmbH (Functional Software, Inc.)Error monitoring and performance traces for the applicationError stack traces, request URLs (with PII redaction at source), user ID hashEU region
Better Stack (BetterStack Ltd.)Application logs aggregation and alertingApplication log lines; Customer Data fields are scrubbed before shippingEU region
PostHog Inc.Product analytics — pseudonymised event-level usage data (opt-out per workspace)Pseudonymised user ID, event name, timestamp, page path; no document content, no keystrokesEU region (EU ingestion endpoint)
Cloudflare, Inc.Bot-challenge verification (Turnstile) on sign-in and public form endpointsIP address, challenge token, request headers; no Customer DataGlobal edge

Planned subprocessors (not yet enabled)

These vendors are not currently processing data. They are listed here so existing Customers have advance notice before they go live.

VendorActivityData categoryLocation
Stripe Payments Europe Ltd. / Stripe Payments UAE LLCSubscription billing, payment processing, tax (planned, once Nexus Ledger AI is registered)Billing contact, card last-four, VAT number, invoice metadataStripe regions per service; not yet enabled

Notification of changes

We notify active Customers of subprocessor additions or replacements at least 30 days in advance, by email to the workspace's billing-contact address and by updating the "Last updated" date on this page. Customers with a Data Processing Addendum in place can object on reasonable grounds; if we cannot accommodate the objection, the Customer may terminate the subscription with respect to the affected service for a pro-rata refund of pre-paid fees.

To request the current Data Processing Addendum or our security questionnaire response pack, contact us via the contact page.