Industrial Designers Society of America (ISDA) Chicago
- Provides support services, networking opportunities, and educational programs to members. Features a book club, debate club, sponsors list, an events calendar, and contacts.
- http://www.idsachicago.org/

Chicago Elevator Association (CEA)
- Networking and information portal for building owners and elevator contractors, consultants and parts suppliers. Member directory, events calendar, and FAQs are showcased.
- http://www.cea-online.org/

Mechanical Contractors Association of Chicago
- Supports mechanical contracting firms in labor relations, communications, educational seminars, government affairs and engineering services
- http://www.mca.org

CRCA - Chicago Roofing Contractors Association
- Provides education, support and networking to area professionals. Includes members directory and contact list, including distribution suppliers, contractors, and manufacturers.
- http://www.crca.org/