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Products & Services
About Chi Chapter
This profile covers Chi Chapter, a company operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Social Advocacy Organizations and based in Oak Park, Illinois, United States.
Its primary NAICS classification is 813311 (Human Rights Organizations). Chi Chapter is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Phone
- +1 (708) 3831677
- Website
- chi-chapter.org
- facebook.com/chichapter1
- Address
- PO Box 4251, Oak Park, Illinois, 60304, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 81Other Services (except Public Administration)
- 8133Social Advocacy Organizations
- 813311Human Rights Organizations
SIC Codes
- 83Social Services
- 839Social Services, Not Elsewhere Classified
- 8399Human Rights Organizations
Company Details
- Employees
- 19 (11-20)
- Annual Revenue
- $3.5M ($1M-$5M)
Chi Chapter: frequently asked questions
What does Chi Chapter do?
This profile covers Chi Chapter, a company operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Social Advocacy Organizations and based in Oak Park, Illinois, United States.
Where is Chi Chapter located?
Chi Chapter is headquartered at PO Box 4251, Oak Park, Illinois, 60304, United States.
How many employees does Chi Chapter have?
Chi Chapter has about 19 employees (the 11-20 range).
What is Chi Chapter's annual revenue?
Chi Chapter's annual revenue is estimated at $3.5M (the $1M-$5M range).
What industry is Chi Chapter in?
Chi Chapter is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 813311 (Human Rights Organizations).
How can I contact Chi Chapter?
Its website is chi-chapter.org and its phone number is +1 (708) 3831677.
Largest companies in Illinois
Largest industrial & mechanical companies
Manufacturing sales in Illinois, 2026
In Illinois, Factur's 2026 study counted 74 manufacturing quotes worth $11.8M and 14 purchase orders over 12 months: 19% of quotes became orders, against 21% nationally. See the Illinois data.
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