Event Citadel (formerly CompuSystems) Information
Summary
Event Citadel (formerly CompuSystems) is a private company that has been in the industry for 50 years. The business currently specializes in Events Services, Event Management Services areas. Event Citadel (formerly CompuSystems)'s headquarter is located at Lisle, Illinois, USA. The number of employees is at least 100. Register with SignalHire to connect with Event Citadel (formerly CompuSystems) employees and management.
| Website | compusystems.com |
| Social Links |    |
| Phone Number | 708-344-9070 |
| Industries | |
| Headquarters Address | 2300 Cabot Dr, Lisle, Illinois, 60532 US |
| Company Size | 100-200 employees |
| Specialities & Services | Event Registration, Lead Retrieval, Analytics |
| Technologies | jQuery, HubSpot CMS, PHP, WordPress, Flask, Spring, Magento, Chakra UI, Laravel, Bootstrap |
| SIC Code | 8741 |
| NAICS Code | 236115 New Single-Family Housing Construction (except For-Sale Builders), 236116 New Multifamily Housing Construction (except For-Sale Builders), 236118 Residential Remodelers, 236210 Industrial Building Construction, 236220 Commercial and Institutional Building Construction, 237110 Water and Sewer Line and Related Structures Construction, 237120 Oil and Gas Pipeline and Related Structures Construction, 237130 Power and Communication Line and Related Structures Construction, 237310 Highway, Street, and Bridge Construction, 237990 Other Heavy and Civil Engineering Construction, 561110 Office Administrative Services |
| DMA Code | Chicago Metropolitan Area |
| Founded | 1976 |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Independent Company |
| Updated: | 2026-08-06 |
Competitors
Name | Founded | Type | Employees |
|---|---|---|---|
| 2011 | Privately Held | 1.0K - 5.0K | |
| 2008 | Privately Held | 250 - 500 | |
| 2011 | Privately Held | 250 - 500 | |
| 2001 | Privately Held | 25 - 100 |
Estimated Website Traffic
The chart shows a growth in traffic to the compusystems.com website. In July, traffic increased to 415, compared to 302 in the previous month. The highest traffic in 2026 was recorded in February, reaching 2216 visits.
Workforce Turnover
Corporate Tenure Analytics
Workforce Experience Insights
2% have been with the company for less than 1 year3% have been with the company for 1 to 2 years6% have been with the company for 3 to 4 years6% have been with the company for 5 to 7 years5% have been with the company for 8 to 10 years78% have been with the company for more than 11 years
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