AWS — Web hosting, servers, databases

Heroku — Web hosting, servers, databases

Intercom — Support via live chat and email

Periscope — Aggregate usage analysis

Hubspot — Customer relationship management

Mixpanel — Aggregate usage tracking

Fullstory — Web app usage and support

Stripe — Payment collection and handling

Mailgun — Service emails

MailChimp — Newsletter for users who opt in

Profitwell — Financial analysis

Sentry — Application monitoring

Google — Email, docs, and analytics

Slack — Messaging

Zoom — User research, customer support, sales

Datadog — Metrics gathering and monitoring

Clearbit — Analytics

Cloudflare — DNS management

Papertrail — Log aggregation

VWO — Website usage and optimization

Github — Code management and version control

CircleCI — Code delivery/deployment pipeline

Hevo - Syncing data from production database to data warehouse

Merge - Optional subprocessor for customers that choose to integrate their Human Resources Information System (HRIS) with Donut

OpenAI - Generate content to be used in Donut products

Rillet - Accounting