McLean County Chamber of Commerce
- Business and community development organization. Features events calendar and membership information.
- http://www.mcleancochamber.org/

McLean County Farm Bureau
- Non-profit trade organizations dedicated to progressive agriculture in Central Illinois.
- http://www.mcfb.org/

Bloomington Normal Area Home Builders Association
- Local trade organization. Features include events calendar, consumer information, and resources for members, FAQs, and site feedback.
- http://www.bnhomebuilders.com/