Event Citadel formely CompuSystems, Inc. - Custom Event Registration Solutions

Innovative, flexible, and powerful solutions for your in-person, virtual, and hybrid events

Online Registration

Deliver a fast and easy registration experience, designed for events of any type or size.

Onsite Registration

Welcome your attendees with the industry’s fastest and most sophisticated onsite registration experience.

Lead Retrieval

Help your exhibitors attract qualified buyers, develop better sales leads, and close more deals.

Event Ticketing

Boost revenue, simplify operations, and enhance attendee experience with a seamless ticketing solution.

Streamline Event Registration Icon depicting abstract browser tab

Streamline
Event Registration

Increase Brand
Awareness

Drive Attendee Engagement Icon depicting a chart with plot points in the shape of a checkmark

Drive Attendee
Engagement

Grow Your Event bar chart icon

Grow Your
Event

We Service All Types of Events

EC Service Types chart for customers

EC Service Types chart for shows

Decades of Excellence

Over100

Million

Registration Fees Collected

Over50

Million

Registrations Taken

Over1.5

Million

Exhibitors Served

Over5,000

Events Serviced

Thought Leadership

What Is Lead Capture, and How Can It Benefit Trade Show Exhibitors?

What Lead Retrieval Will Look Like Post-Pandemic

The Triple Play Strategy for Exhibitor Success

Registration Solutions Built for Organizers Like You