Run complex events without spreadsheet cleanup afterwards.
Event Stacks brings ticketing, access control, exhibitors, on-site sales, staff and reporting into one system. It supports conferences and corporate events, and it has the full depth needed for festivals with vendors, gates, event currency and hundreds of crew.
100+
events
300,000+
tickets issued
1M+
transactions
¥1B+
in sales
The platform
One platform, field apps and a portal.
Event Base is the planning and admin workspace. The six Stacks are the apps your team uses on tablets and phones at the venue. The Participant Portal is where exhibitors and sponsors do their own work. AI and MCP operate on the same permissions and audit trail. Everyone reads and writes the same event data, so handoffs stop becoming spreadsheets.
Outward-facing
Public registration
Anyone with the link — tickets, forms, payment
Participant Portal
Exhibitors, sponsors and vendors, each with their own login
One database. One permission model. One audit trail.
At the venue
POS Stack
Sell at the booth
Sales Stack
Track exhibitor revenue
Task Stack
Coordinate the team
Access Stack
Scan at the gate
Vendor Stack
Sell in any currency
Time Stack
Clock staff in and out
Team level
Products, categories, producers, participants, participant types, users, settings — built once, reused every year.
Event level
Ticket types, forms, floorplan, staff, tasks, points of sale, currencies — specific to one edition.
Participants & portal
Manage exhibitors without long email threads.
Sponsors, sellers and vendors get their own login. They submit products, upload the documents you asked for, clear approvals, declare revenues and manage their own staff. Deadline reminders go to them automatically, so your team does not have to send every follow-up.
- Submit products
- Upload documents
- Clear approvals
- Declare revenues
- Manage their staff
- Answer surveys
AI assistant & MCP
AI that can act on event data, with limits you can audit.
A built-in assistant answers in plain language, and an MCP endpoint lets you connect Claude directly to your own organisation. It reads sales and attendance, and it can draft products, tasks and ticket types — but it cannot delete anything, every change is previewed before it happens, and all of it lands in your audit log.
- ✓
No delete tools exist
- ✓
Every write previewed first
- ✓
Double permission gate
- ✓
Every AI change logged
The apps that run on site
Tablets and phones on site, reading and writing the same event data as Event Base. They keep working when the venue Wi-Fi does not.
Proven at events run by
Outdoor festivals, business summits, conference series that repeat across continents. Different sizes, different countries, one system underneath — because it was built inside a working event rather than designed in the abstract.
Why us
Built by operators, not a ticketing agency
Event Stacks came out of fifteen years running one of Japan's largest outdoor festivals. The product is strongest where event software often breaks down: exhibitors, POS, gates, tokens, staff and the reports after everyone goes home.
See it running on your event
Thirty minutes, in English or Japanese, with your own event as the example.