For TCS Tenants

Argonne National Laboratory (ANL), UChicago Argonne, LLC, and the Department of Energy (DOE) are considered the occupants or tenant of the Theory and Computing Sciences Building.

Authorized Person(s)
Our Authorized Person(s) to communicate requests to the Office of the Building are:

Base Building Contact: Judy Stickels, Manager, TCS Building Operations – Argonne National Laboratory
Data Center Contact: Rene L Gobeyn, Data Center Facility Manager – Argonne National LaboratoryFacilities Management / Office of the Building

The Theory and Computing Sciences Building is professionally managed by Kennedy Wilson Properties, Ltd.

The facility manager’s Office of the Building is located in Room 7120. The Facility Manager is David Fleming (630-252-0295). His assistant is Patsy Baldwin (630-252-0063). The chief engineer for the building is Mike Weiner (630-252-0294). The engineering office is located in room 1168.

The facilities management staff is available from 8:00 a.m. to 5:00 p.m., Monday through Friday. Engineering staff is available from 6:00 a.m. to 6:00 p.m. The Office of the Building is closed for most nationally recognized holidays. Janitorial coverage is on site from 5:30am to 7:00pm.

Building AddressBuilding 240 – Theory and Computing Sciences Building, 9400 S. Cass Avenue, Argonne, Illinois 60439

In the event of an emergency, this address should be given to the Police Department, Fire Department, or Emergency Medical System (EMS) department dispatcher. You can report an emergency by dialing 911 from any landline phone. For cell phones, dial 630-252-1911.

Local Mail Carrier: 42 Stephen Street (3.2 miles), Lemont, IL 60439, (630) 257-6204