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Products & Services
About CertFirst
CertFirst is a company reporting $5M-$10M in annual revenue, classified under Business Schools and Computer and Management Training, based in Oak Brook, Illinois, United States, operating in Office service and employing 21-50 people.
Its primary NAICS classification is 611420 (Computer Training). CertFirst is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Phone
- +1 (630) 6840355
- Website
- certfirst.com
- linkedin.com/company/certfirst
- facebook.com/certfirstusa
- Address
- PO Box 5074, Oak Brook, Illinois, 60522, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 61Educational Services
- 6114Business Schools and Computer and Management Training
- 611420Computer Training
SIC Codes
- 82Educational Services
- 824Vocational Schools
- 8243Computer Training
Company Details
- Employees
- 27 (21-50)
- Annual Revenue
- $7.0M ($5M-$10M)
CertFirst: frequently asked questions
What does CertFirst do?
CertFirst is a company reporting $5M-$10M in annual revenue, classified under Business Schools and Computer and Management Training, based in Oak Brook, Illinois, United States, operating in Office service and employing 21-50 people.
Where is CertFirst located?
CertFirst is headquartered at PO Box 5074, Oak Brook, Illinois, 60522, United States.
How many employees does CertFirst have?
CertFirst has about 27 employees (the 21-50 range).
What is CertFirst's annual revenue?
CertFirst's annual revenue is estimated at $7.0M (the $5M-$10M range).
What industry is CertFirst in?
CertFirst is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 611420 (Computer Training).
How can I contact CertFirst?
Its website is certfirst.com and its phone number is +1 (630) 6840355.
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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