# Ingest users from SaaS apps ## Learn how to ingest users from SaaS applications. Krenalis makes it easy to collect customer data from SaaS applications. Each integration automatically aligns external data with your unified Customer Model schema and loads it into your data warehouse — ensuring a consistent and comprehensive customer view. ### Overview Integrating SaaS sources helps you bring marketing, CRM, and transactional data into one place — without writing code. Once connected, Krenalis keeps your data synchronized and ready for harmonization and activation workflows. ### Available source connectors Below are the SaaS applications currently supported by Krenalis. Our library of SaaS connectors is continuously expanding. If you'd like to propose a new integration, we'd love to hear from you at [hello@krenalis.com](mailto:hello@krenalis.com).
Mailchimp is an email marketing platform that helps businesses design and send marketing emails.
HubSpot offers tools for customer relationship management (CRM), marketing, and sales.
Klaviyo is a marketing platform that helps businesses create personalized, targeted email campaigns.
Brevo is a marketing platform that helps businesses send and automate email and messaging campaigns.
Stripe is a payment platform that lets businesses accept and manage online payments.
Segment is a platform that unifies data to improve analytics and personalization.
RudderStack is a platform that collects, unifies, and routes customer data across tools and systems.