What are the leading iPaaS providers for app integrations?

We're looking into integration platform as a service (iPaaS) tools to help automate and connect systems across our stack. The goal is to streamline data flow between apps without heavy engineering work.

Here are a few of the top-rated iPaaS providers I’ve found while researching iPaaS platforms. I’d love to hear from anyone who’s used them in real-world setups.

1. Celigo: Designed for mid-sized businesses and growing teams. Offers prebuilt flows and customization for connecting SaaS apps.
2. Workato: Powerful automation with advanced logic and integration depth. Best suited for companies needing scalable, enterprise-grade workflows.
3. Zapier: Easy to set up with thousands of app connectors. A good fit for teams that want quick, no-code automations.
4. Boomi: Offers robust enterprise integration with a visual interface and data governance tools. Useful for larger organizations with complex infrastructure.
5. DBSync Cloud Workflow: Focuses on CRM and accounting integrations, especially for platforms like Salesforce and QuickBooks.

Have you used any of these iPaaS tools to connect your apps or automate routine work? I’d love to hear how it went and what you’d recommend to someone just getting started.