Attendium
Attendium is a Sweden-based software company that provides a cross-platform guest list management application (web, iOS, Android) used by event organizers, promoters, venue managers, and PR companies to invite guests, run real-time check-ins, sell tickets, and coordinate teams.
- Company typePrivate
- Founded2011
- HeadquartersStockholm, Sweden
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What Attendium does
Attendium AB is a Sweden-based, privately held software company that operates a guest list management platform for event organizers, promoters, venue managers, and PR companies. The core product is a cross-platform application available on web, iOS, and Android that enables users to invite guests, manage guest lists, run real-time check-in operations, sell tickets, and coordinate team permissions. Headquartered in Stockholm and founded in 2011, the company has grown its installed base to over 28,000 event organizers managing 340,000+ events and 150M+ guests cumulatively.
The platform is built on cloud infrastructure hosted on AWS in Ireland, with a GraphQL API exposing the full functionality of the web and mobile clients. Notable technical features include offline check-in mode with automatic sync, real-time multi-device synchronization, QR code generation and scanning, cross-event passes that integrate with Apple Wallet and Google Wallet, and a Model Context Protocol (MCP) server that connects AI assistants (Claude, ChatGPT, Gemini) to Attendium for conversational event management. A third-generation product rebuild completed in 2021 ensured full feature parity between the mobile apps and the web manager, a positioning the company uses against competitors that ship mobile-light experiences. The platform is GDPR-compliant and processes payments via Stripe (PCI DSS Level 1) without storing card numbers.
Attendium monetizes through a four-tier subscription model ($0 Free, $49 Lite, $259 Starter, $524 Professional monthly, billed monthly or annually) plus a non-refundable service fee on ticketing transactions processed through the platform. The company employs a product-led growth motion with self-serve signup on web and mobile app stores, supplemented by a "Talk to an expert" sales channel for larger enterprise customers. Notable customers include Jimmy Woo, Defected Records, Boiler Room, ID&T, Awakenings, Stureplansgruppen, Mercedes-Benz Prague Fashion Week, SUPER (APAC), and Parks and Resorts/Gröna Lund. The company is bootstrapped (no disclosed funding rounds), operates with 1-10 employees, and distributes globally across EMEA, APAC, and the Americas.
Attendium firmographics
Firmographics- Name
- Attendium
- Legal name
- Attendium AB
- Website
- https://attendium.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Attendium is a Sweden-based software company that provides a cross-platform guest list management application (web, iOS, Android) used by event organizers, promoters, venue managers, and PR companies to invite guests, run real-time check-ins, sell tickets, and coordinate teams.
- Ownership category
- akta.pro rank
Attendium industry classification
Industry- Product category
- Event Management Software
- NAICS
- Convention and Trade Show Organizers (561920)
- SIC
- Services-Computer Programming, Data Processing, Etc. (7370), Services-Amusement & Recreation Services (7900)
- akta.pro primary industry
- Attendee Mobile Apps & Engagement Platforms (THAHAFAE)
- akta.pro secondary industries
- Guest Management (Invitations, RSVPs, Seating, Check-in) (HSACAAAJ), Meeting & Event Program Technology (Registration, Apps, Badging) (THACAFAB)
Keywords
Where Attendium is headquartered
LocationHeadquarters
- HQ city
- Stockholm
- HQ country
- Sweden
- HQ region
- Europe
Offices1 record
Markets served
Attendium business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- Subscription Plans: Monthly or annual subscription tiers (Free, Lite, Starter, Professional) providing access to the guest list management platform with varying guest limits and user counts.
- Ticketing Service Fee: Attendium charges a non-refundable service fee on each ticket transaction processed through their ticketing service. The fee is stated on their website or agreed in writing.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier with basic guest management for small events |
| Subscription | Monthly | Entry-level paid plan with increased guest capacity |
| Subscription | Monthly | Mid-tier plan with unlimited guests and more users |
| Subscription | Monthly | Enterprise tier with all features and unlimited everything |
Go-to-market motion1 record
Distribution channels5 records
Marketing channels6 records
Attendium product offering
Product offeringCore offering
Attendium is a cloud-based guest list management platform sold as a SaaS subscription to professional event organizers. The platform enables users to invite guests, manage guest lists, sell tickets via Stripe, run event check-ins (with QR codes and offline support), issue cross-event passes synced to Apple/Google Wallet, and coordinate teams with role-based permissions, all synchronized in real time across iOS, Android, and Web apps. An optional MCP server integration also allows AI assistants such as Claude, ChatGPT, and Gemini to manage events and guest lists conversationally.
Product overview
Attendium is a guest list management platform designed for event organizers. The core product is a cross-platform application (web, iOS, Android) for managing guest lists, invitations, check-ins, and ticketing. Key modules include Invitations (for RSVP/ticket sales), Passes (cross-event passes for members/season ticket holders), Event Templates (reusable configurations), Event Check-in (with QR scanning and offline support), Event Ticketing (Stripe-integrated), Team Management (role-based permissions), Push Notifications (Wallet-based messaging), and Guest Confirmations (shareable QR codes). The platform also offers a GraphQL API and MCP Server for AI assistant integration, allowing management via Claude, ChatGPT, and Gemini.
Differentiator
Problem solved
Functional benefit
Products and services
- Attendium Guest List Management Platform Cloud-based guest list management SaaS accessible via iOS, Android, and Web, used by professional event organizers to invite, manage, and check in guests with real-time multi-device sync and offline capability. Offered on a freemium plus tiered monthly/annual subscription (Free, Lite, Starter, Professional).
- Event Ticketing Stripe-integrated ticket sales on event registration pages with support for multiple ticket types, custom pricing per guest list, and a non-refundable per-transaction Attendium service fee. Targets event organizers selling both free and paid tickets.
- GraphQL API Programmatic API exposing the same functionality as the web and mobile apps, using OAuth 2.0 with PKCE and dynamic client registration. Lets enterprise customers and developers integrate Attendium with other systems and automate workflows.
- MCP Server for AI Assistants Model Context Protocol server that connects AI assistants (Claude, ChatGPT, Gemini) to Attendium for conversational event and guest list management. Available at api.attendium.com/mcp and supports text-based natural-language commands such as adding guests, checking in attendees, and issuing passes.
Quantifiable outcome
- Scale from small parties to 100,000+ guest events
- +1 more outcomes
Companies that use Attendium
Customer profileNamed customers10 records
Segments4 records
Ideal customer profiles1 record
Attendium technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability3 records
Feature10 records
Attendium partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- StripecoreStripe is used as the payment processing provider for Attendium's ticketing service. Stripe is PCI DSS Level 1 certified, and Attendium never stores card numbers. This integration enables event organizers to sell tickets directly through their event registration pages.
Scale indicators4 records
Recent moves5 records
Expansion highlights5 records
Attendium competitors and assessment
Company assessmentBroad incumbents
- Cvent: Enterprise event management suite covering registration, badging, on-site check-in, and attendee tracking. Comparable in the corporate meeting and large-event space where Attendium also operates.
- Hopin: Virtual and hybrid event platform with registration and attendee engagement features; an adjacent comparable with partial overlap on attendee apps and ticketing.
- Eventbrite: Global ticketing and event management platform serving millions of organizers. Overlaps with Attendium on attendee management, check-in, and ticketing, but operates at a much broader scale across consumer and prosumer events.
- Bizzabo: Enterprise event experience platform with registration, check-in, and attendee engagement modules. Competes with Attendium on event check-in and attendee apps within the corporate and conference segment.
Direct peers
- Ticket Tailor: Self-service ticketing platform aimed at independent event organizers with Stripe-based payments and check-in apps. Comparable to Attendium's ticketing and check-in modules for small-to-mid-sized events.
- Whova: Event app platform offering check-in, attendee networking, and registration for conferences and trade shows. Closely comparable to Attendium on attendee mobile apps and live check-in.
- RSVPify: Online RSVP and guest list management platform for weddings, private parties, and corporate events. Directly comparable to Attendium's invitation and guest management features for SMB and consumer organizers.
- Splash: Event marketing platform with registration, invitations, and guest list management for brand-led events. Overlaps directly with Attendium's invitations and RSVP functionality.
- Eventmobi: Event apps and check-in platform serving conferences, trade shows, and corporate events. Closely comparable to Attendium on mobile-first attendee engagement and on-site check-in workflows.
Emerging players
- Paperless Post: Digital invitations and event planning platform, with stronger consumer/wedding positioning but overlapping guest list management and RSVP functionality.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Attendium social profiles
Digital presenceAttendium compliance and trust
Trust signalCompliance4 records
Attendium financial estimates
Financial estimateRevenue estimate
Valuation estimate
Attendium leadership team
Management profileNumber of profiles
Profiles1 record
Attendium funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Attendium M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Attendium
What does Attendium do?
Attendium is a cloud-based guest list management platform sold as a SaaS subscription to professional event organizers. The platform enables users to invite guests, manage guest lists, sell tickets via Stripe, run event check-ins (with QR codes and offline support), issue cross-event passes synced to Apple/Google Wallet, and coordinate teams with role-based permissions, all synchronized in real time across iOS, Android, and Web apps. An optional MCP server integration also allows AI assistants such as Claude, ChatGPT, and Gemini to manage events and guest lists conversationally.
Is Attendium a public or private company?
Attendium is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Attendium founded?
Attendium was founded in 2011. It employs 1 to 10 people.
Where is Attendium based?
Attendium is headquartered in Stockholm, Sweden, in the Europe region.
How does Attendium make money?
Two revenue lines are on record. Subscription Plans are the primary driver. The others are ticketing Service Fee.
Who are Attendium's main competitors?
Broad incumbents on record are Cvent, Hopin, Eventbrite and Bizzabo. Direct peers are Ticket Tailor, Whova, RSVPify, Splash and Eventmobi. Paperless Post is listed as an emerging player.
Does Attendium have an API?
Yes. Attendium offers a GraphQL API that provides the same functionality available in their web and mobile applications. The API uses OAuth 2.0 with PKCE and dynamic client registration for authentication. API endpoints include: https://api.attendium.com/graphql (main endpoint) and https://api.attendium.com/graphql/schema (schema). Supports JSON content type with UTF-8 encoding. Rate limits and versioning are not specified. A Model Context Protocol (MCP) server is also available at https://api.attendium.com/mcp for AI assistant integration. Developer documentation is at attendium.com/help/api.
What industry is Attendium in?
Attendium's product category is Event Management Software. Its primary akta.pro industry code is THAHAFAE, Attendee Mobile Apps & Engagement Platforms, with a secondary code of HSACAAAJ, Guest Management (Invitations, RSVPs, Seating, Check-in). Its NAICS code is 561920 and its SIC code is 7370.