Cal.com is an open-source scheduling infrastructure platform and alternative to Calendly, founded in 2021 by Peer Richelsen and Bailey Pumfleet. It enables individuals, businesses, and developers to fully customize their appointment booking workflows, with a self-hosted option and a mission to connect 1 billion people by 2031.
Tech & App Stack is available on paid plans
Upgrade to Silver or higher to reveal the full technology and app stack for any company.
View pricingCreate a free account to see funding visualizations and detailed round data.
Create Free AccountCreate a free account to see which investors have funded this company.
Create Free Account
Ramp provides spend management, corporate cards and accounts payable solutions for businesses.

Cloud collaboration platform that enables teams to build custom apps on top of shared data to pow...

ClickHouse is an open-source column-oriented database management system that focuses on real-time...

OpenAI is an AI research and deployment company dedicated to ensuring that general-purpose artifi...

Databricks is the pioneer of the data lakehouse, a unified platform for data science, machine lea...

For more than 30 years, BMC has helped thousands of companies around the world master IT complexi...