Insights

Strong Industry Position Event Citadel is a well-established player in the events services industry with a focus on customized registration solutions and a robust client trust model, providing opportunities for tailored outreach to event organizers seeking innovative registration technologies.

Recent Acquisitions The company's recent acquisitions of EventsPass and partnerships with Data Vault Holdings highlight its active growth strategy and potential for cross-selling advanced ticketing and data analytics solutions to existing clients.

Innovative Technology With partnerships involving proximity-based tech and digital wallets, Event Citadel is leveraging cutting-edge innovations, creating sales opportunities for vendors offering complementary event engagement and access solutions.

Expanding Market Reach Participation in high-profile events like the National Public Lands Day and PRINTING United Expo indicates strong market visibility and opens doors to sell integrated solutions for large-scale event logistics and attendee management.

Financial Capacity With revenue between 50 million and 100 million dollars and a solid client portfolio, the company presents a promising prospect for expanding service offerings and securing larger contracts in the events technology sector.

CompuSystems Tech Stack

CompuSystems uses 8 technology products and services including jQuery UI, Lodash, Underscore.js, and more. Explore CompuSystems's tech stack below.

  • jQuery UI
    Javascript Libraries
  • Lodash
    Javascript Libraries
  • Underscore.js
    Javascript Libraries
  • HubSpot
    Marketing Automation
  • PayPal
    Payment Processing
  • Authorize.net
    Payment Processing
  • Piwik
    System Analytics & Monitoring
  • Facebook
    Widgets

Media & News

CompuSystems's Email Address Formats

CompuSystems uses at least 3 format(s):
CompuSystems Email FormatsExamplePercentage
First.Last@compusystems.comJohn.Doe@compusystems.com
59%
FirstLast@compusystems.comJohnDoe@compusystems.com
20%
FirstL@compusystems.comJohnD@compusystems.com
8%
FLast@compusystems.comJDoe@compusystems.com
4%
LastF@compusystems.comDoeJ@compusystems.com
3%
Last@compusystems.comDoe@compusystems.com
2%
FirLast@compusystems.comJohDoe@compusystems.com
1%
First@compusystems.comJohn@compusystems.com
1%
FirstLas@compusystems.comJohnDoe@compusystems.com
1%
F.Last@compusystems.comJ.Doe@compusystems.com
1%
First.Last@csireg.comJohn.Doe@csireg.com
77%
Last@csireg.comDoe@csireg.com
18%
Fir.Last@csireg.comJoh.Doe@csireg.com
5%

Frequently Asked Questions

Where is CompuSystems's headquarters located?

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CompuSystems's main headquarters is located at 2300 Cabot Drive Suite 230 Lisle, Illinois United States. The company has employees across 5 continents, including North AmericaAsiaSouth America.

What is CompuSystems's phone number?

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You can contact CompuSystems's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is CompuSystems's official website and social media links?

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CompuSystems's official website is eventcitadel.com and has social profiles on LinkedIn.

What is CompuSystems's NAICS code?

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CompuSystems's NAICS code is 56192 - Convention and Trade Show Organizers.

How many employees does CompuSystems have currently?

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As of April 2026, CompuSystems has approximately 215 employees across 5 continents, including North AmericaAsiaSouth America. Key team members include Cio & Vp Of Information Technology: E. D.Chief Marketing Officer & Chief Optimization Officer: K. W.Chief Financial Officer: C. F.. Explore CompuSystems's employee directory with LeadIQ.

What industry does CompuSystems belong to?

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CompuSystems operates in the Events Services industry.

What technology does CompuSystems use?

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CompuSystems's tech stack includes jQuery UILodashUnderscore.jsHubSpotPayPalAuthorize.netPiwikFacebook.

What is CompuSystems's email format?

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CompuSystems's email format typically follows the pattern of First.Last@compusystems.com. Find more CompuSystems email formats with LeadIQ.

When was CompuSystems founded?

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CompuSystems was founded in 1976.

CompuSystems

Events ServicesIllinois, United States201-500 Employees

Event Citadel (formerly CompuSystems) is a full-service event registration partner delivering flexible, custom solutions across a wide range of event needs. We tailor our technology to each client, creating a seamless ecosystem that strengthens connections between buyers and sellers.

Our goal is to build long-term client relationships rooted in trust, shared success, and an unwavering commitment to quality. To support this promise, Event Citadel continually invests in innovative products and services designed to serve you today—and evolve with you into the future.

Section iconCompany Overview

Headquarters
2300 Cabot Drive Suite 230 Lisle, Illinois United States
Phone number
NAICS Code
56192 - Convention and Trade Show Organizers
Founded
1976
Employees
201-500

Section iconFunding & Financials

  • $50M$100M

    CompuSystems's revenue is estimated to be in the range of $50M$100M

Section iconFunding & Financials

  • $50M$100M

    CompuSystems's revenue is estimated to be in the range of $50M$100M

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