LISLE, Ill. – CompuSystems has signed renewal deals with several clients. Heavy Duty Aftermarket Week (HDAW), The American Association of Cancer Research (AACR), and The American College of Surgeons (ACS) have all extended their contracts with CompuSystems.

CompuSystems will provide registration services, data management, and lead management services for HDAW’s Heavy Duty Aftermarket Week as well as the AACR Annual Meeting, and will provide registration, data warehousing and analytics services for the ACS Quality and Safety Conference virtual event. 

“We are excited to announce these renewals,” CompuSystems President Chris Williams said. “This is a testament to the high level of service we’ve been providing our valued customers. We look forward to many more years with HDAW, AACR, and ACS.”


Heavy Duty Aftermarket Week logo

About Heavy Duty Aftermarket Week (HDAW)

Heavy Duty Aftermarket Week (HDAW) is the largest North American gathering of the independent heavy-duty industry. More than 2,300 executives and managers from the U.S., Canada and six other countries including distributors, suppliers, service providers, educators and industry media attended the 2019 conference in Las Vegas. It was created by the industry’s leading trade associations and marketing groups with a long-term goal of consolidating the many annual events on the industry calendar and to create the most valuable event for the heavy duty aftermarket. For more information on HDAW, please visit https://www.hdaw.org/2021/Public/Enter.aspx.

About The American Association of Cancer Research (AACR)

The mission of the American Association for Cancer Research is to prevent and cure cancer through research, education, communication, collaboration, funding, and advocacy. Through its programs and services, the AACR fosters research in cancer and related biomedical science; accelerates the dissemination of new research findings among scientists and others dedicated to the conquest of cancer; promotes science education and training; and advances the understanding of cancer etiology, prevention, diagnosis, and treatment throughout the world. For more information on AACR please visit www.aacr.org.

About The American College of Surgeons (ACS)

The American College of Surgeons is a scientific and educational organization of surgeons that was founded in 1913 to raise the standards of surgical practice and improve the quality of care for all surgical patients. The College is dedicated to the ethical and competent practice of surgery. Its achievements have significantly influenced the course of scientific surgery in America and have established it as an important advocate for all surgical patients. The College has more than 82,000 members and is the largest organization of surgeons in the world. For more information on ACS please visit www.facs.org.

CompuSystems Logo, Light green, light blue, and blue interlocking C and S

About CompuSystems

CompuSystems is a leading provider of registration, data management, data analytics and lead retrieval services. Our mission is to help event organizers, exhibitors and attendees achieve the most successful trade show experience possible.

AUA

I want to thank the CSI team for the excellent job done onsite. Registration was executed flawlessly in the square and at all satellite areas as well. There is no way we could have been this successful without your partnership.

Daniel Tadesse, PMP, CAE

ENA

The continued partnership with CompuSystems (CSI) provided the support and resources needed to allow our team to accomplish the transition from an in-person meeting to a virtual conference. The CSI team was wonderful in the development and execution of EN20X registration process and exceeded expectations across the board.

Phillip Ridley

HIMSS

HIMSS has worked with CSI for several years and appreciates their continued quest to service our needs with cutting-edge solutions while providing outstanding customer service.

Karen Malone
Vice President of Meetings & Sales / HIMSS

AACR

CompuSystems has been a great partner for us. They are extremely responsive to our customer needs and are always introducing new technologies to improve our attendee experience. They have a terrific staff, especially our Account Manager, who makes managing a 22,000 person conference much less stressful.

Joe Pontoski
Senior Director, Finance and Business Administration Division / AACR

PMI

I wanted to take a moment to say THANK YOU for all of your work and going above and beyond. It feels really great to know that we are working with people that want what’s best for our programs, and want to be a part of that success. Your efforts are noticed and valued!

Jessica Dyrek
Product Specialist, Live Learning / Project Management Institute

Sellers Expositions

It is a relief to have confidence in a company maintaining such an important area of the show.

Warren Sellers

Performance Racing Industry

THANK YOU, THANK YOU, THANK YOU…the CSI Team seriously rocks! I can’t begin to tell you how much we appreciate all your extra efforts and long hours.

Karin Davidson
Trade Show Director / Performance Racing Industry

Printing United

CSI has allowed us to provide fast registration service to our attendees and exhibitors onsite while also offering a registration website catered to the various attendee profile types we have.

Lexy Olisko
Director of Conferences / Printing United

AUA

I want to thank the CSI team for the excellent job done onsite. Registration was executed flawlessly in the square and at all satellite areas as well. There is no way we could have been this successful without your partnership.

Daniel Tadesse, PMP, CAE

ENA

The continued partnership with CompuSystems (CSI) provided the support and resources needed to allow our team to accomplish the transition from an in-person meeting to a virtual conference. The CSI team was wonderful in the development and execution of EN20X registration process and exceeded expectations across the board.

Phillip Ridley

HIMSS

HIMSS has worked with CSI for several years and appreciates their continued quest to service our needs with cutting-edge solutions while providing outstanding customer service.

Karen Malone
Vice President of Meetings & Sales / HIMSS

AACR

CompuSystems has been a great partner for us. They are extremely responsive to our customer needs and are always introducing new technologies to improve our attendee experience. They have a terrific staff, especially our Account Manager, who makes managing a 22,000 person conference much less stressful.

Joe Pontoski
Senior Director, Finance and Business Administration Division / AACR

PMI

I wanted to take a moment to say THANK YOU for all of your work and going above and beyond. It feels really great to know that we are working with people that want what’s best for our programs, and want to be a part of that success. Your efforts are noticed and valued!

Jessica Dyrek
Product Specialist, Live Learning / Project Management Institute

Sellers Expositions

It is a relief to have confidence in a company maintaining such an important area of the show.

Warren Sellers

Performance Racing Industry

THANK YOU, THANK YOU, THANK YOU…the CSI Team seriously rocks! I can’t begin to tell you how much we appreciate all your extra efforts and long hours.

Karin Davidson
Trade Show Director / Performance Racing Industry

Printing United

CSI has allowed us to provide fast registration service to our attendees and exhibitors onsite while also offering a registration website catered to the various attendee profile types we have.

Lexy Olisko
Director of Conferences / Printing United

©2026 Event Citadel. All rights reserved. Event Citadel, CompuLEAD, and Expo Wallet are registered trademarks of Event Citadel.

Privacy Preference Center

Event Citadel
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.