Trust · Sub-processors

Sub-processor list

MAST engages a small set of vetted providers to deliver the GRC Platform. Each is bound by data protection terms no less protective than our own Data Processing Agreement, and MAST remains responsible for their performance.

Last updated · September 11, 2026

1. Core infrastructure

These providers are used for every workspace and cannot be disabled.

Sub-processorPurposeData processedLocation
Lovable (Lovable Labs Inc.)Application hosting, build and delivery of the MAST GRC PlatformAll customer data processed by the PlatformEU / US regions, global edge delivery
Supabase Inc.Managed PostgreSQL database, authentication and object storage for evidence and documentsAccount data, GRC records, uploaded evidence, audit logsRegion selected for the workspace (AWS)
Amazon Web ServicesUnderlying compute, storage and encrypted backups for the managed databaseAll customer data at restRegion selected for the workspace
Cloudflare, Inc.Edge runtime, CDN, DNS, TLS termination and DDoS protectionRequest metadata, IP addresses, transient request bodiesGlobal edge network

2. Communications

Used to deliver transactional messages the Platform generates. Workspace administrators control which notification types are sent from Settings → Notifications.

Sub-processorPurposeData processedLocation
Mailgun (Sinch Email)Transactional email delivery — invitations, policy and audit reminders, rollout and training notificationsRecipient name and email address, message content, delivery eventsEU / US sending regions; sending domain notify.mastgt.com

3. Optional, customer-enabled

These providers only process data if the workspace explicitly enables the corresponding feature or connects the account.

Sub-processorPurposeData processedLocation
Lovable AI Gateway (and its model providers)AI-assisted drafting, summarisation and control mapping — only when a workspace enables AI featuresPrompt content submitted by the user; no training on customer dataEU / US
Google LLC — Google DriveEvidence import when a workspace connects Google DriveFiles and metadata the customer selectsPer the customer's own Google tenancy
Microsoft Corporation — OneDrive / SharePointEvidence import when a workspace connects Microsoft 365Files and metadata the customer selectsPer the customer's own Microsoft tenancy
Dropbox, Inc.Evidence import when a workspace connects DropboxFiles and metadata the customer selectsPer the customer's own Dropbox account

4. MAST affiliates

MAST Consulting Group entities may access customer data to provide support and contracted advisory services, under the same confidentiality and security obligations described in the DPA. Support access is role-restricted, logged, and available for review in the workspace activity log.

5. Change notifications

MAST publishes changes to this list here and gives at least 30 days' notice before a new sub-processor starts processing customer personal data. To subscribe to notifications, or to object to a change on reasonable data protection grounds, email privacy@mastcgroup.com.

Need this list as a signed annex to a vendor questionnaire? Request it via the contact form and choose Data protection.