Subprocessors
Last updated: 14 August 2026
Overview
We use the following core service providers to host, secure, and operate ContechCost. We update this page when material subprocessors change.
Current Subprocessors
| Provider | Purpose | Data Categories |
|---|---|---|
| Cloudflare | Hosting, edge delivery, network security, anti-bot (Turnstile), and speech-to-text for voice input. | Application traffic, logs, related metadata, and voice recordings where a customer uses voice input. |
| Supabase | Database, authentication, and application storage services in regional projects. | Account records, workspace content, and operational data. AU/NZ is stored in Sydney and UK in London; the US project is provisioned in N. Virginia pending launch. |
| Anthropic | AI and connector services where a customer chooses to use Claude-connected features. | Prompts, tool inputs, outputs, and related request metadata. |
| Microsoft Azure OpenAI | AI processing used to help prepare estimates, manage project costs, and read contract documents. | Prompts, document and project content submitted for AI processing, outputs, and related request metadata. |
| OpenAI | Direct API AI processing for controlled ContechCost assistant workloads. | Prompts, tool inputs, outputs, project context selected for AI processing, and related request metadata. |
| Bluebeam | PDF measurement and takeoff for drawings a customer chooses to process. | Customer-uploaded drawings, markups, and derived measurement data. |
| Stripe | Subscription billing, checkout, and payment processing. | Billing contacts, subscription records, payment metadata, and transaction history. |
| Resend | Transactional email delivery for product notifications and review workflow emails. | Recipient email addresses, message content, and delivery metadata. |