Membership
Download PDF Membership Form or Sign up online
The general benefits of becoming a member of COSC are: connection to a trusted green building resource, access to product research, and invites to local green building events with locally and nationally known speakers.
Annual Membership Options:
Student - $15
- Member rate for all COSC events
- Invitations to COSC member open houses and networking events
Individual/Family - $35
- Member rate for all COSC events
- Invitations to COSC member open houses and networking events
Non-Profit - $95
- Member rate for all COSC events
- Organization name and contact information in COSC’s website member section
- Opportunity to list your events on COSC’s website calendar
Small Business – 9 employees or less - $195
- Member rate for up to 4 employees at COSC events
- Company name and contact information in COSC’s website member section
Large Business – 10+ employees - $350
- Member rate for up to 7 employees at COSC events
- Company name and contact information in COSC’s website member section
Download PDF Membership Form or Sign up online
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COSC Business Members
Click here to see a list of COSC Business Members
Corporate Sponsorship Opportunities
Click here to download information about COSC's Corporate Sponsorship Levels
Please make your check payable to COSC and mail to:
219 1/2 Fifth Street, Suite A
Historic Valley Junction
West Des Moines, IA 50265
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