Stannp
Direct mail platform and API for marketers to send postcards and letters online.
stannp.com ↗ · Stannp Ltd
Used as a subprocessor by 2 companies →
Subprocessors (11)
List updated Mar 13, 2026 · Checked Oct 27, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| Microsoft Azure European Economic Area | Server hosting, database storage, cloud-based file storage Cloud Infrastructure | “Microsoft Azure” |
| HubSpot Ireland | Customer relationship management and marketing email delivery Customer Experience & Communications | “HubSpot” |
| Plivo United States | SMS delivery service Customer Experience & Communications | “Plivo” |
| SendGrid United States | Transactional notification email delivery Customer Experience & Communications | “SendGrid” |
| Google Analytics United States | Website and platform analytics Customer Experience & Communications | “Google Analytics” |
| Google Ads United States | Targeted advertising and audience matching Customer Experience & Communications | “Google Ads” |
| Royal Mail United Kingdom | Postal Address File: address validation and standardisation Fulfilment & Logistics | “Royal Mail (PAF)” |
| Royal Mail United Kingdom | Delivery of postcards and letters Fulfilment & Logistics | “Royal Mail” |
| Whistl United Kingdom | Downstream courier services for physical items Fulfilment & Logistics | “Whistl” |
| Sagacity United Kingdom | Data cleaning and validation services Fulfilment & Logistics | “Sagacity” |
| Sage United Kingdom | Accounts software and financial management Business Operations | “Sage” |
| Opayo United Kingdom | Payment processing Business Operations | “Opayo (Elavon)” |
- Microsoft AzureEuropean Economic Area
Server hosting, database storage, cloud-based file storage
“Microsoft Azure”
- HubSpotIreland
Customer relationship management and marketing email delivery
“HubSpot”
- PlivoUnited States
SMS delivery service
“Plivo”
- SendGridUnited States
Transactional notification email delivery
“SendGrid”
- Google AnalyticsUnited States
Website and platform analytics
“Google Analytics”
- Google AdsUnited States
Targeted advertising and audience matching
“Google Ads”
- Royal MailUnited Kingdom
Postal Address File: address validation and standardisation
“Royal Mail (PAF)”
- Royal MailUnited Kingdom
Delivery of postcards and letters
“Royal Mail”
- WhistlUnited Kingdom
Downstream courier services for physical items
“Whistl”
- SagacityUnited Kingdom
Data cleaning and validation services
“Sagacity”
- SageUnited Kingdom
Accounts software and financial management
“Sage”
- OpayoUnited Kingdom
Payment processing
“Opayo (Elavon)”