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Curtis Glassen


I chose to pursue a career in IT at the early age of 15. After five years in the industry, I partnered with TJ Haggerty, Inc. to form the company in 2006. In 2018 I then became the sole owner of Glassen Technology Services. My passions for organization and technology drive me to incessantly better himself and my employees, all while growing a successful business. When I find spare time, I enjoy boating, hiking, and experimenting in the kitchen.

Moe Shittu


It all began at the age of seven, when I drove my parents crazy building an intruder alarm on a circuit board. Since then, I’ve moved up to programming and creating iOS apps in my free time. My curiosity for testing new software and the latest OS leave the functionality of personal PC in a perpetually unknown state. Fun Fact: I brew beer.

Chad Klamer


My IT interests began in 1984, when my family bought a Commodore 64. I recall loading games on 5.25 floppy disks like it was yesterday. Since Getting my BS from UW Stout in Telecomm and Business Management, I’ve spent 13 years supporting businesses’ IT needs. You’ll find that I do a majority of the non-remote client support as I enjoy being hands-on. In my free time, I’m with my wife and two boys, often fishing, boating, and gardening.

lynn schattner


I’ve acquired a BS in Information Technology, MS in Information Systems and Technology Management with a specialization in Information Assurance and Security, and I’m currently working on my Doctorate in Information Technology, specializing in Information Security. I’m highly experienced in technology infrastructure, information security, and cloud computing. Fun Fact: I am a licensed amateur radio operator.

Chris Wagner


I am a network specialist with multiple years of experience in configuring backups, cyber security, and management of workstations, Windows, and third-party software. I have an Associate of Applied Science from WCTC. Prior to IT assisting, I was an assembly technician, building hardware much like the kind I now service. In Contrast to my “techie” side, I also skateboard, create stained glass, and enjoy traveling.

Bea Black


I’ve been with the company since it was founded in 2006. Beyond the books, I also take care of the many plants in our office, making sure they all stay happy and healthy. At home, I enjoy gardening, reading sci-fi novels, cheering on the Packers, and crocheting – snowmen are my specialty!

Tim Haggerty

Tim is an entrepreneur involved in advising several businesses. He enjoys mentoring budding entrepreneurs through close engagement with for-profit and not-for-profit boards. He is the former Chair of both the YPO Chicago and Heartland Chapters. He holds both bachelor’s and master’s degrees from Marquette University. Tim also completed post-graduate work at Northwestern’s Kellogg School of Management. Curtis is known within Tim’s family as Jr., as they joke that he might as well be Tim’s oldest child. Tim’s contribution to Glassen now mostly consists of strategic advice and counsel. He is very proud of the firm’s growing into a thriving independent business since he first met Curtis as an dynamic high schooler working for an IT company 15+ years ago.