eCal

What eCal does

eCal operates a calendar marketing platform that enables publishers and brands to deliver smart, dynamic, personalized events directly into end users' personal digital calendars on Google, Apple, Microsoft/Outlook and ICS — bypassing email inboxes and social feeds with a claimed 100% delivery rate. The platform is built around embeddable 'Sync to Calendar' widgets (current generation Button Code V2, released May 2025), four-mode Event Display widgets (calendar, page, carousel, column), and a REST API (v2) at api.ecal.com with webhook notifications, Private Events for subscriber-specific reminders, a Data Delivery Service to sFTP/S3, and ECAL Pay for in-calendar payments. Underlying technical assets include preferential API access to Google Calendar, 30+ language support, geo-localization, GDPR/CCPA/UK GDPR compliance and AWS-hosted infrastructure with 99.99% uptime.

The company sells primarily to enterprise publishers and brands through tiered product packages — ECAL Community, ECAL Business and ECAL Enterprise — alongside a self-serve API-first PLG motion with developer documentation and embedded widgets, plus a field-sales/enterprise demo motion for large accounts. The customer base spans more than 400 top-tier brands and 30 million end-user calendars, heavily weighted to professional sports leagues and governing bodies (Premier League, NBA, MLB, NHL, NASCAR, IndyCar, ICC, World Rugby, World Athletics, AFL, NRL, NBL, Cricket Australia, EuroLeague, Inter Miami CF, Betfred Super League, Stoiximan GBL, EFL) and media/streaming platforms (Disney+, Fox Sports, SiriusXM, The Skimm), with additional verticals in ticketing, venues, fitness, arts & culture, education, gaming and payment reminders.

Revenue is generated through quote-based recurring B2B platform subscriptions paid by publishers and brands; the service is free for end users. eCal is privately held and operated by HyperKu Pte Ltd (Singapore) with wholly-owned regional subsidiaries in Australia, the UK and the US, and operational offices in Melbourne (headquarters), London, Singapore, Los Angeles, Paris, Tokyo and Riyadh. No external institutional investors or recent disclosed funding rounds are referenced; capital history traces to ~$18.25M of cumulative venture funding in 1999-2000 (net2phone, Reuters, East West Capital) and the 2000 acquisition of iPing Inc.

Name

eCal

Legal name

HyperKu Pte Ltd

Website

https://ecal.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

251–500 employees

Short description

eCal operates a B2B calendar marketing platform that delivers publishers' and brands' events directly into end users' Google, Apple and Microsoft digital calendars via embeddable widgets, REST APIs and the Private Events API, serving 400-plus enterprise customers (predominantly sports leagues, ticketing and media/streaming brands) across seven global offices.

Ownership category

akta.pro rank

Product category

Calendar Marketing Platform

NAICS

Spectator Sports (71121)

SIC

Services-Advertising (7310)

akta.pro primary industry

Fan Engagement & Onsite Technology (RFID, Cashless, Apps) (MPAGAAAL)

Keywords

• Calendar marketing platform
• Calendar synchronization
• Event management API
• Digital calendar integration
• Sync to calendar

Headquarters

HQ city

Philadelphia

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. B2B Platform Services: ECAL provides its calendar marketing platform to publishers and brands (sports leagues, media companies, ticketing providers, etc.) who pay to deliver events to end users' calendars. The service is free for end users; revenue comes from the publishers/brands using the platform.

Go-to-market motion1 record

Distribution channels7 records

Marketing channels8 records

Core offering

eCal (ECAL) operates a calendar marketing platform that enables brands, publishers, sports leagues, media companies, and ticketing providers to deliver smart, dynamic, personalized events directly into end users' personal digital calendars (Google, Apple, Microsoft). The offering comprises embeddable Sync-to-Calendar buttons, configurable Event Display widgets, a Private Events API for subscriber-specific reminders (payments, bookings, itineraries), and a RESTful developer API with webhook and sFTP/S3 CRM data integrations. The service is free for end users and monetized via enterprise subscriptions to publishers and brands.

Product overview

ECAL is a calendar marketing platform — not a single app but a multi-tiered platform ecosystem. The core ECAL Calendar Marketing Platform serves as the foundation, with three commercial product tiers: Community (for community groups), Business (for businesses), and Enterprise (for secure private events use cases). The platform is built around two primary widgets: the ECAL Sync Button (enabling users to subscribe to events via a 'sync to calendar' button) and the ECAL Event Display (an embeddable event listing widget available in calendar, page, carousel, and column modes). Supporting modules include Private Events (for subscriber-specific personalized event reminders such as payments, bookings, and itineraries via a dedicated API), ECAL Pay (instant in-calendar payments), and Manage My ECAL (a self-service subscriber portal). Developer access is provided through the ECAL REST API v2, Webhook Notifications (for real-time subscriber data), and the Data Delivery Service (for periodic CSV-based CRM data exports). The platform connects to major calendar programs including Google Calendar, Outlook.com, Apple Calendar, and ICS.

Differentiator

Problem solved

Functional benefit

Products and services

• ECAL Calendar Marketing Platform A calendar marketing platform that enables brands and publishers to deliver smart, dynamic, personalized, and actionable events directly into end users' personal digital calendars (Google, Apple, Microsoft). The platform provides Sync-to-Calendar widgets, embeddable Event Displays, Private Events for personalized reminders, and integrations with major calendars via REST API and webhooks. Targeted at enterprise publishers and brands across sports, media, ticketing, and subscription verticals.
• ECAL Developer API (REST API v2, Webhooks, Data Delivery Service, Private Events) A RESTful developer API (API v2) enabling programmatic management of calendars, events, and subscribers, plus a Private Events API for subscriber-specific events, Webhook Notifications for real-time subscriber data delivery (with optional AES-GCM encryption), and a Data Delivery Service for periodic CSV exports via sFTP or AWS S3. Authentication uses apiKey and apiSign (MD5). Rate limits: max 1,000 records per batch, 1 request per 2 seconds ingress. Targeted at developers and engineering teams at publisher and brand customers.

Quantifiable outcome

• In 2025, the average organization using the ECAL platform generated a 34.5x ROI on their calendar marketing investment
• +3 more outcomes

Named customers22 records

Segments9 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability4 records

Feature9 records

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• AddEvent: AddEvent provides 'Add to Calendar' buttons, event widgets, and calendar sync services for publishers, directly overlapping with ECAL's core Sync Button and Event Display offerings to similar B2B marketing and event customers.
• Mixmax: Mixmax is a calendar-driven sales engagement and meeting scheduling platform that embeds calendar interactions directly into sales workflows. It overlaps with ECAL's calendar-sync and event notification approach, particularly in B2B sales and event-driven use cases.

Broad incumbents

• Mailchimp: Mailchimp is a dominant email-first marketing platform serving SMB and mid-market brands, including many sports, ticketing, and venue customers. As a broad incumbent in marketing communications, it competes for the same enterprise budgets ECAL targets.
• Salesforce Marketing Cloud: Salesforce Marketing Cloud is a large enterprise marketing suite (email, mobile, social, advertising, data) sold to the same global brand and media customers ECAL serves. It represents the most likely broad incumbent to bundle a competing calendar notification capability.
• HubSpot: HubSpot is a broad marketing automation, CRM and content platform used by mid-market and enterprise marketers. It competes with ECAL for marketing budget allocation and could easily extend its workflow tools to include calendar-based notifications.
• Iterable: Iterable is a cross-channel marketing automation platform (email, push, SMS, in-app) used by enterprise brands. It competes with ECAL for enterprise marketing budgets and could add calendar sync as a native channel, making it a broader incumbent competitor.
• Braze: Braze is a customer engagement platform spanning email, push, in-app and SMS messaging for large consumer brands. It targets the same enterprise marketer buyers as ECAL and could bundle calendar notifications as an additional channel within its orchestration suite.

Emerging players

• Calendly: Calendly is a widely adopted scheduling and calendar automation platform for meetings and appointments. While focused on 1:1 scheduling rather than broadcast event marketing, it shares ECAL's calendar-API integration depth and developer-first positioning.
• OneSignal: OneSignal is a leading push notification, email, SMS and in-app messaging platform used by product and marketing teams. It competes with ECAL for the attention-capture and engagement use cases that ECAL's calendar channel addresses, especially for sports and media apps.

Others

• Eventbrite: Eventbrite is a leading ticketing and event-marketing platform serving concerts, festivals, and live experiences. It sits adjacent to ECAL as both serve event organizers and ticketing customers, and could integrate calendar sync natively to disintermediate ECAL in that vertical.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/ECALworld
• YouTubeyoutube.com/@ECALtv
• Facebookfacebook.com/ECALworld
• LinkedInlinkedin.com/company/ecal-corp-
• Instagraminstagram.com/ecalworld

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 records

Funding overview

Funding rounds2 records

Investors3 records

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

M&A1 record

Investments

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

Frequently asked questions about eCal