37signals
Maker of Basecamp project management, HEY email, Fizzy, Campfire and other software for small teams.
37signals.com ↗ · 37signals LLC
Used as a subprocessor by 1 company →
Subprocessors (29)
List updated Oct 12, 2026 · Checked Oct 27, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| Cloudflare United States | Cloud services provider Campfire | “Cloudflare: Cloud services provider (United States)” |
| hCaptcha United States | Anti-bot protection Campfire | “hCaptcha: Anti-bot protection (United States)” |
| Help Scout United States | Help desk software Campfire | “Help Scout: Help desk software (United States)” |
| OpenAI United States | AI assistant tools used by our staff Campfire | “OpenAI: AI assistant tools used by our staff (United States)” |
| Sentry United States | Error reporting software Campfire | “Sentry: Error reporting software (United States)” |
| TaxJar United States | Sales tax calculation Campfire | “TaxJar: Sales tax calculation (United States)” |
| Twilio United States | Text messaging service Campfire | “Twilio: Text messaging service (United States)” |
| Anthropic United States | AI assistant tools used by our staff Backpack | “Anthropic: AI assistant tools used by our staff (United States)” |
| Birdie France | Support request screen recordings Backpack | “Birdie: Support request screen recordings (France)” |
| Braintree United States | Payment processing services Backpack | “Braintree: Payment processing services (United States)” |
| Cloudflare United States | Cloud services provider Backpack | “Cloudflare: Cloud services provider (United States)” |
| hCaptcha United States | Anti-bot protection Backpack | “hCaptcha: Anti-bot protection (United States)” |
| Help Scout United States | Help desk software Backpack | “Help Scout: Help desk software (United States)” |
| OpenAI United States | AI assistant tools used by our staff Backpack | “OpenAI: AI assistant tools used by our staff (United States)” |
| Sentry United States | Error reporting software Backpack | “Sentry: Error reporting software (United States)” |
| TaxJar United States | Sales tax calculation Backpack | “TaxJar: Sales tax calculation (United States)” |
| Twilio United States | Text messaging service Backpack | “Twilio: Text messaging service (United States)” |
| Cloudflare Pages United States | Blog hosting Company processors | “Cloudflare Pages: Blog hosting (United States)” |
| Mailchimp United States | Email newsletter service Company processors | “Mailchimp: Email newsletter service (United States)” |
| PayPal United States | Payment transfer service Company processors | “PayPal: Payment transfer service (United States)” |
| Plausible Estonia | Website analytics Company processors | “Plausible: Website analytics (Estonia)” |
| PostHog United States | A/B testing on the Basecamp website Company processors | “PostHog: A/B testing on the Basecamp website (United States)” |
| Shopify United States | E-commerce platform Company processors | “Shopify: E-commerce platform (United States)” |
| Squarespace United States | Blog hosting Company processors | “Squarespace: Blog hosting (United States)” |
| Typeform Spain | Form/survey provider Company processors | “Typeform: Form/survey provider (Spain)” |
| Help Scout United States | Help desk software ONCE | “Help Scout: Help desk software (United States)” |
| Stripe United States | Payment processing services ONCE | “Stripe: Payment processing services (United States)” |
| Crowdcast United States | Livestreaming platform Podcast, blog and events | “Crowdcast: Livestreaming platform (United States)” |
| Buzzsprout United States | Podcast publishing platform Podcast, blog and events | “Buzzsprout: Podcast publishing platform (United States)” |
| SquadCast United States | Podcast recording software Podcast, blog and events | “SquadCast: Podcast recording software (United States)” |
- CloudflareUnited States
Cloud services provider
“Cloudflare: Cloud services provider (United States)”
- hCaptchaUnited States
Anti-bot protection
“hCaptcha: Anti-bot protection (United States)”
- Help ScoutUnited States
Help desk software
“Help Scout: Help desk software (United States)”
- OpenAIUnited States
AI assistant tools used by our staff
“OpenAI: AI assistant tools used by our staff (United States)”
- SentryUnited States
Error reporting software
“Sentry: Error reporting software (United States)”
- TaxJarUnited States
Sales tax calculation
“TaxJar: Sales tax calculation (United States)”
- TwilioUnited States
Text messaging service
“Twilio: Text messaging service (United States)”
- AnthropicUnited States
AI assistant tools used by our staff
“Anthropic: AI assistant tools used by our staff (United States)”
- BirdieFrance
Support request screen recordings
“Birdie: Support request screen recordings (France)”
- BraintreeUnited States
Payment processing services
“Braintree: Payment processing services (United States)”
- CloudflareUnited States
Cloud services provider
“Cloudflare: Cloud services provider (United States)”
- hCaptchaUnited States
Anti-bot protection
“hCaptcha: Anti-bot protection (United States)”
- Help ScoutUnited States
Help desk software
“Help Scout: Help desk software (United States)”
- OpenAIUnited States
AI assistant tools used by our staff
“OpenAI: AI assistant tools used by our staff (United States)”
- SentryUnited States
Error reporting software
“Sentry: Error reporting software (United States)”
- TaxJarUnited States
Sales tax calculation
“TaxJar: Sales tax calculation (United States)”
- TwilioUnited States
Text messaging service
“Twilio: Text messaging service (United States)”
- Cloudflare PagesUnited States
Blog hosting
“Cloudflare Pages: Blog hosting (United States)”
- MailchimpUnited States
Email newsletter service
“Mailchimp: Email newsletter service (United States)”
- PayPalUnited States
Payment transfer service
“PayPal: Payment transfer service (United States)”
- PlausibleEstonia
Website analytics
“Plausible: Website analytics (Estonia)”
- PostHogUnited States
A/B testing on the Basecamp website
“PostHog: A/B testing on the Basecamp website (United States)”
- ShopifyUnited States
E-commerce platform
“Shopify: E-commerce platform (United States)”
- SquarespaceUnited States
Blog hosting
“Squarespace: Blog hosting (United States)”
- TypeformSpain
Form/survey provider
“Typeform: Form/survey provider (Spain)”
- Help ScoutUnited States
Help desk software
“Help Scout: Help desk software (United States)”
- StripeUnited States
Payment processing services
“Stripe: Payment processing services (United States)”
- CrowdcastUnited States
Livestreaming platform
“Crowdcast: Livestreaming platform (United States)”
- BuzzsproutUnited States
Podcast publishing platform
“Buzzsprout: Podcast publishing platform (United States)”
- SquadCastUnited States
Podcast recording software
“SquadCast: Podcast recording software (United States)”