Sub-processors
Last updated: June 25, 2026
Sleet Labs LLC operates SEC/OUTBOUND and uses the third-party providers below to deliver the Service. Each provider is covered by a data processing agreement or equivalent contractual protection where applicable. We keep this list current and give clients at least 30 days' notice before a new sub-processor begins processing client data (see our Privacy Policy §6).
Clients who want sub-processor change notices can email privacy@secoutbound.com with the subject line "Sub-processor notices."
| Provider | Role in the Service | Personal data processed | Primary location |
|---|---|---|---|
| Vercel, Inc. | Website hosting, contact-form endpoint, AI Gateway | Server logs, contact-form submissions, AI inputs/outputs | USA |
| Cloudflare, Inc. | DNS, registrar, network security | IP addresses, request metadata | USA |
| Plus Five Five, Inc. (d/b/a Resend) | Transactional email delivery for the contact form | Contact-form data (name, email, message) | USA |
| Supabase, Inc. | System-of-record database + per-client dashboard (row-level security) | Prospect/lead and engagement data, isolated per client | USA |
| Google LLC | Google Workspace — sending mailboxes, calendar | Email content, contact metadata | USA |
| ZenLeads Inc. (d/b/a Apollo.io) | B2B contact-data sourcing | Public business contact data we retrieve | USA |
| GBD Software as a Service Ltd. (d/b/a MillionVerifier) | Email-address verification | Email addresses (verification only) | EU (Hungary) |
| 521 Products Pty Ltd (d/b/a Smartlead) | Outbound email sending and engagement tracking | Prospect contact data, email content, engagement events | Australia |
| Anthropic PBC (via Vercel AI Gateway) | AI-assisted email personalization | Prospect public-profile snippets (not used to train the model) | USA |
| Cal.com, Inc. | Meeting scheduling | Booking details, calendar metadata | USA |
| Stripe, Inc. | Payment processing for clients | Client billing details (we never see full card numbers) | USA |
ZenLeads Inc. (d/b/a Apollo.io) and GBD Software as a Service Ltd. (d/b/a MillionVerifier) are listed for transparency as independent third-party data sources or verification providers from which we obtain or verify business contact data as an independent controller.
Questions about this list: privacy@secoutbound.com.