Letter AI
AI revenue enablement platform for sales training, coaching, content management and deal pursuit for B2B sales teams.
letter.ai ↗ · Letter AI, Inc.
Subprocessors (24)
Checked Oct 27, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| Amazon Web Services United States | Hosting services Infrastructure Sub-Processor | “Amazon Web Services USA” |
| Buildkite United States | CI / CD Infrastructure Sub-Processor | “Buildkite USA” |
| Datadog United States | Observability Infrastructure Sub-Processor | “Datadog USA” |
| Stripe United States | Payment Processing Infrastructure Sub-Processor | “Stripe USA” |
| Microsoft Azure United States | Text Embedding Models Infrastructure Sub-Processor | “Microsoft Azure USA” |
| Pinecone United States | Vector Database Infrastructure Sub-Processor | “Pinecone USA” |
| PropelAuth United States | Authentication and Identity Management Infrastructure Sub-Processor | “PropelAuth USA” |
| OpenAI United States | AI inference; no customer data is used to train models Optional Service Specific Sub-Processor | “OpenAI USA” |
| Anthropic United States | AI inference; no customer data is used to train models Optional Service Specific Sub-Processor | “Anthropic USA” |
| Mux United States | Video processing Optional Service Specific Sub-Processor | “Mux USA” |
| Retell AI United States | Voice AI processing; no customer data is used to train models Optional Service Specific Sub-Processor | “Retell AI USA” |
| ElevenLabs United States | Voice AI processing; no customer data is used to train models Optional Service Specific Sub-Processor | “ElevenLabs USA” |
| ConvertAPI United States | PDF conversion Optional Service Specific Sub-Processor | “ConvertAPI USA” |
| Deepgram United States | AI audio processing Optional Service Specific Sub-Processor | “Deepgram USA” |
| Apify United States | Web scraping Optional Service Specific Sub-Processor | “Apify USA” |
| Algolia United States | Search Optional Service Specific Sub-Processor | “Algolia USA” |
| Google United States | Translation Processing Optional Service Specific Sub-Processor | “Google USA” |
| HeyGen United States | Video AI Processing; No customer data is used to train models Optional Service Specific Sub-Processor | “HeyGen USA” |
| LiveAvatar United States | Video AI Processing; No customer data is used to train models Optional Service Specific Sub-Processor | “LiveAvatar USA” |
| Intercom United States | Customer Support Messaging and In-App Chat Optional Service Specific Sub-Processor | “Intercom USA” |
| Anam United States | Video AI Processing; No customer data is used to train models Optional Service Specific Sub-Processor | “Anam USA” |
| Recall.ai United States | Transcripts, recordings, and metadata from meetings Optional Service Specific Sub-Processor | “Recall.ai USA” |
| Fireworks AI United States | Open-source model hosting Optional Service Specific Sub-Processor | “Fireworks AI USA” |
| Salesloft United States | Sales Engagement Plugin and Content Recommendation Processing Optional Service Specific Sub-Processor | “SalesLoft USA” |
- Amazon Web ServicesUnited States
Hosting services
“Amazon Web Services USA”
- BuildkiteUnited States
CI / CD
“Buildkite USA”
- DatadogUnited States
Observability
“Datadog USA”
- StripeUnited States
Payment Processing
“Stripe USA”
- Microsoft AzureUnited States
Text Embedding Models
“Microsoft Azure USA”
- PineconeUnited States
Vector Database
“Pinecone USA”
- PropelAuthUnited States
Authentication and Identity Management
“PropelAuth USA”
- OpenAIUnited States
AI inference; no customer data is used to train models
“OpenAI USA”
- AnthropicUnited States
AI inference; no customer data is used to train models
“Anthropic USA”
- MuxUnited States
Video processing
“Mux USA”
- Retell AIUnited States
Voice AI processing; no customer data is used to train models
“Retell AI USA”
- ElevenLabsUnited States
Voice AI processing; no customer data is used to train models
“ElevenLabs USA”
- ConvertAPIUnited States
PDF conversion
“ConvertAPI USA”
- DeepgramUnited States
AI audio processing
“Deepgram USA”
- ApifyUnited States
Web scraping
“Apify USA”
- AlgoliaUnited States
Search
“Algolia USA”
- GoogleUnited States
Translation Processing
“Google USA”
- HeyGenUnited States
Video AI Processing; No customer data is used to train models
“HeyGen USA”
- LiveAvatarUnited States
Video AI Processing; No customer data is used to train models
“LiveAvatar USA”
- IntercomUnited States
Customer Support Messaging and In-App Chat
“Intercom USA”
- AnamUnited States
Video AI Processing; No customer data is used to train models
“Anam USA”
- Recall.aiUnited States
Transcripts, recordings, and metadata from meetings
“Recall.ai USA”
- Fireworks AIUnited States
Open-source model hosting
“Fireworks AI USA”
- SalesloftUnited States
Sales Engagement Plugin and Content Recommendation Processing
“SalesLoft USA”