Cal.com

Summary

Cal.com is an open source scheduling and appointment-booking platform, built and sold by Cal.com, Inc. It started in 2021 as a side project called Calendso, launched on Product Hunt, before rebranding to Cal.com about five months later and releasing a v1.0. The company raised a $7.4 million seed round led by OSS Capital in late 2021, followed by a $25 million Series A led by Alexis Ohanian's Seven Seven Six in April 2022. It is headquartered in San Francisco and continues to operate as an independent, venture-backed private company offering both a hosted product and a self-hostable open source codebase with an API for developers.

Timeline

1. 2021-04

   founded Launch as Calendso^7,8

   Launched on Product Hunt as Calendso, an open source Calendly alternative, and won Product of the Month

2. 2021-09

   rename Rebrand to Cal.com⁹

   Five months after its Calendso launch, the product rebranded to Cal.com and released a v1.0 release candidate

3. 2021-12

   funding Seed round^7,8

   Raised $7.4 million seed round led by OSS Capital with a group of open source and startup angel investors

4. 2022-04

   funding Series A⁴

   Raised $25 million Series A led by Seven Seven Six (Alexis Ohanian), with OSS Capital, Obvious Ventures and Daily.co participating; launched an 'app store for time'

Founders

• Peer Richelsen^1,2

  Co-Founder and Chairman

  Co-founded Calendso/Cal.com in 2021; listed as an individual investor with several portfolio companies

  crunchbase.com

• Bailey Pumfleet¹

  Co-Founder and CEO

  Co-founded Calendso/Cal.com in 2021

  crunchbase.com

Domains