What Cal.com does

Cal.com, founded in 2021 and headquartered in San Francisco (operating as a fully distributed team), sells scheduling infrastructure SaaS to individuals, teams, organizations, and regulated enterprises. The product eliminates meeting back-and-forth through shareable booking links, native calendar synchronization across Google Calendar, Outlook, and 100+ providers via the Unified Calendar API, automated SMS/email reminders via Twilio, embedded scheduling widgets (Cal Atoms and Cal.com Embed), and built-in video conferencing (Cal Video, powered by Daily.co). Compliance posture spans SOC 2 Type II, ISO 27001, HIPAA, GDPR, and CCPA, supporting healthcare and other regulated buyers; the platform supports 65+ languages and is offered both as a multi-tenant SaaS at app.cal.com and historically as a self-hostable deployment via GitHub.

The company monetizes through a freemium model: a free individual tier, a $16/user/month Teams tier, a $37/user/month Organizations tier, and custom-priced Enterprise contracts with dedicated databases, priority support, and higher SLAs. GTM is product-led growth with no-credit-card self-serve signup layered with enterprise direct sales via cal.com/talk-to-sales. Distribution extends to iOS, Android, Chrome, Safari, Edge, Firefox, macOS, Windows, and Linux apps and an affiliate/partner channel. Notable deployments include Deel (1,200+ users), Vercel, Supabase, Navi (HIPAA-regulated), Mintlify, and Kent C. Dodds / EpicWeb.dev. The platform reports over 1 million users, 4+ million bookings processed, and 150k+ calendar authorizations.

Cal.com is privately held and has raised $32.4 million in disclosed venture funding — a $7.4M seed led by OSS Capital in December 2021 and a $25M Series A led by Seven Seven Six in April 2022 — to expand its open-source scheduling infrastructure and build the 'App Store for Time' developer ecosystem. Leadership comprises co-founder/CEO Bailey Pumfleet and co-founder/Chairman Peer Richelsen (also serving as the company's EU GDPR representative). In March 2026 the company released Cal.com Agents (v6.3) extending Cal.ai into conversational scheduling across Slack, Telegram, email, CLI, and voice, and in April 2026 it transitioned the production codebase from AGPL-3.0 to closed source — citing AI-powered security threats — while launching Cal.diy, an MIT-licensed open-source community version, to retain hobbyists and self-hosting users.

Name

Cal.com

Legal name

Cal.com, Inc.

Website

https://cal.com

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

11–50 employees

Short description

Cal.com is a scheduling infrastructure SaaS platform, founded in 2021, that provides online booking, calendar synchronization, and AI-powered meeting coordination for individuals, teams, mid-market organizations, and healthcare enterprises across 65+ languages.

Ownership category

akta.pro rank

Product category

Scheduling Software

NAICS

Software Publishers (513210)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Email, Calendar & Scheduling (BPAMAMAC)

akta.pro secondary industries

Time, Attendance & Scheduling Administration (BPACAIAE), All-in-One Event Registration & Event Management Suites (THAHAFAA)

Keywords

• Scheduling software
• Calendar management
• Online booking
• Appointment scheduling
• Meeting coordination

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. SaaS Subscription - Teams: Teams tier at $16/user/month with round-robin scheduling, shared availability, and team workflows for small business scheduling needs
2. SaaS Subscription - Organizations: Organizations tier at $37/user/month with org-wide admin controls and centralized management for mid-size to large companies
3. SaaS Subscription - Enterprise: Enterprise tier with custom pricing, priority support, dedicated database, and higher SLAs for industries requiring secure online booking systems
4. Free Individual Tier: Free tier for individuals including unlimited event types, calendar syncing, workflow automation, Stripe payments, and Cal Video

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Cal.com provides a scheduling infrastructure platform that lets individuals, teams, and enterprises automate meeting booking through shareable scheduling links, calendar synchronization (Google Calendar, Outlook, 100+ providers), built-in video conferencing (Cal Video), payments via Stripe, and AI-driven scheduling via Cal.ai. The product is offered as a cloud SaaS, embeddable components for third-party apps, a unified calendar API, and a self-hostable open-source variant (Cal.diy).

Product overview

Cal.com is a scheduling infrastructure platform offering a unified portfolio of products for individuals, teams, and enterprises. The core Cal.com Core Platform provides calendar synchronization, availability management, and online booking, while Cal.ai delivers AI-powered voice/conversational scheduling agents. Built-in video conferencing (Cal Video), automation (Workflows), and embeddable components (Cal.com Atoms, Cal.com Embed) extend the platform. Cal.diy serves the open-source community with a self-hostable MIT-licensed version. The platform targets use cases including recruiting, sales, HR, healthcare, support, and education, with enterprise features for regulated industries.

Differentiator

Problem solved

Functional benefit

Brands

• Cal.diy: A fully open-source MIT-licensed version of Cal.com released for hobbyists and developers who want to self-host scheduling infrastructure. Released in April 2026 as part of Cal.com's transition to closed source.
• Cal.ai
• Cal Video
• Cal Sans

Products and services

• Cal.com Core Platform Cloud-based scheduling infrastructure that synchronizes calendars (Google Calendar, Outlook, 100+ providers), prevents double bookings, detects timezones, sends automated SMS/email reminders, and enables online booking via shareable links. Serves individuals, teams, organizations, and enterprises.
• Cal.ai AI-powered voice and conversational scheduling agent that autonomously handles meeting scheduling, rescheduling, adding teammates to invites, and creating appointments through natural language interactions via phone calls, Slack, Telegram, email, and CLI.
• Cal Video White-label, in-house video conferencing platform powered by Daily.co infrastructure that enables instant video meetings with recording and encrypted storage in AWS S3, eliminating the need for external video tool accounts.
• Cal.diy Open-source, self-hostable community edition of Cal.com released under MIT license for hobbyists and developers who prefer self-hosted scheduling infrastructure.
• Unified Calendar API Standalone API and authorization widget that supports calendar connections across 100+ providers (Google Calendar, Outlook, Microsoft Graph), providing unified CRUD operations on connected calendars with OAuth 2.0.

Quantifiable outcome

• Over 1 million users and 4 million bookings processed
• +2 more outcomes

Named customers6 records

Segments10 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

AI capability5 records

Feature7 records

Partnerships

Six partnerships are on record, tiered core and minor.

• VercelcoreTechnology or IntegrationVercel provides the deployment platform for Cal.com's website and preview deployments. The Cal.com codebase uses Vercel for CI/CD with environment variables and database credentials managed through Vercel.
• Daily.cocoreTechnology or IntegrationDaily.co provides the white-label video service powering Cal Video, Cal.com's built-in video conferencing platform. This integration enables users to conduct video meetings without external tools.
• StripecoreTechnology or IntegrationStripe integration allows users to accept payments for bookings through Cal.com. PCI-DSS compliant payment processing.
• TwiliocoreTechnology or IntegrationTwilio powers SMS and email reminders for Cal.com bookings, enabling automated meeting notifications to users.
• DeelminorOthersCal.com uses Deel's contract templates for standardizing salaries and employment arrangements. Deel is also a customer with 1,200+ team members using Cal.com.
• GitHubcoreTechnology or IntegrationGitHub hosts the Cal.com codebase (calcom/cal.diy for open-source version) and is used for development workflows, issue tracking, and code review.

Scale indicators7 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Calendly: Calendly is the dominant SaaS scheduling platform and Cal.com's primary stated competitor (frequently referenced in customer migration quotes, e.g., Supabase, Kent C. Dodds). Both target individuals, teams, and enterprise with calendar-synced scheduling links and a freemium-to-enterprise pricing ladder.
• SavvyCal: SavvyCal is a direct scheduling-link competitor frequently mentioned alongside Cal.com in customer comparisons (e.g., the Mintlify quote). It targets professionals and small teams with paid-only plans, overlapping with Cal.com's Teams and Organizations tiers.
• Chili Piper: Chili Piper offers scheduling with built-in lead routing, round-robin distribution, and CRM updates (Salesforce/HubSpot) — capabilities that overlap with Cal.com's Routing, Round-Robin Scheduling, and CRM integrations. Both target B2B sales and revenue teams.
• Doodle: Doodle is an established scheduling and meeting-poll platform serving individuals, teams, and enterprise. It competes with Cal.com on group scheduling, paid booking, and a freemium model, and is a comparable general-purpose scheduling alternative.
• OnceHub (formerly ScheduleOnce): OnceHub provides scheduling, routing, and live chat for sales, service, and onboarding use cases, overlapping with Cal.com's Routing, Workflows, and enterprise scheduling features. Both sell into B2B revenue and support teams.
• Acuity Scheduling: Acuity is a Squarespace-owned scheduling platform used by service businesses, educators, and healthcare providers for client booking and payments. It overlaps with Cal.com on online booking, payments, and HIPAA-adjacent use cases.

Broad incumbents

• Microsoft Bookings: Microsoft Bookings is a scheduling app bundled with Microsoft 365 business plans and integrated with Outlook. It competes as a default, free alternative for enterprises already standardized on the Microsoft stack, paralleling Cal.com's enterprise tier.
• Google Calendar Appointment Scheduling: Google's native appointment-scheduling feature within Google Calendar is bundled into Workspace and represents a free, default alternative for individuals and businesses using Google Calendar — Cal.com's largest integration partner.
• HubSpot Meetings: HubSpot Meetings is part of the broader HubSpot CRM platform, providing scheduling links tied to HubSpot contacts, deals, and workflows. It overlaps with Cal.com's free and Teams tiers and is often sold to HubSpot-centric revenue teams.

Emerging players

• Zoom Scheduler: Zoom Scheduler is Zoom's native scheduling product, bundled with Zoom Workplace. It is an emerging competitor leveraging Zoom's installed base of meeting users, directly overlapping with Cal.com's free and Teams scheduling propositions.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/calcom/cal.com
• Xx.com/calendso
• LinkedInlinkedin.com/company/cal-com

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

Funding overview

Funding rounds2 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cal.com