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BlockSurvey

Customer Experience20 vendorsUpdated Nov 14, 2026blocksurvey.ioSubprocessor list

BlockSurvey uses 20 subprocessors and infrastructure vendors, including Google Cloud, OpenAI and Stripe, based on its public subprocessor list. Last checked Nov 14, 2026.

AI Stack · 3
Infrastructure · 17

AI Stack

Model Serving

Groq
63 companies

AI inference on survey content; no PII/PHI transmitted

Foundation Models

Anthropic
669 companies

Internal AI assistance for engineering; QA and support operations; not integrated into the BlockSurvey product

OpenAI
823 companies

AI-assisted survey generation and content processing; no PII/PHI transmitted

View their stack →

Infrastructure

Cloud & Networking

Cloudflare
615 companies

CDN, DNS and network security for production traffic

Google Cloud
1081 companies

Hosting of production databases (Firestore) and related cloud infrastructure

Render
30 companies

Hosting of the production application and API services

Auth & Identity

SuperTokens
1 companies

Authentication and session management for user accounts

Observability

Sentry
518 companies

Application error monitoring and logging

Billing & Payments

PayPal
84 companies

Payment Gateway

Stripe
741 companies

Payment Gateway

Analytics & BI

PostHog
272 companies

Product analytics on application usage

CRM & Support

DocuSign
104 companies

Document signing tool

Intercom
374 companies

Customer support chat platform

View their stack →

Developer Platform

Nhost
1 companies

Backend hosting (database/authentication) for product/feature it serves

Google Workspace
255 companies

Email services and internal document storage

Communications

NeverBounce
9 companies

Email list verification

Postmark
134 companies

Transactional email delivery (account and system notifications)

Resend
105 companies

Transactional email delivery to end-users (survey invitations and respondent emails)

SendGrid
362 companies

Email campaign delivery

Twilio
420 companies

SMS delivery to end-users, including recipient phone numbers, message content, and A2P 10DLC brand/campaign registration data

Model labs reached through vendors 1

BlockSurvey does not list these model providers. Vendors on its list name them on their own subprocessor lists.

Changes

Checked Nov 14, 2026Source

This is the first saved copy of BlockSurvey’s subprocessor list. Added and removed vendors will show here after the next check.

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