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Products & Services
About OSullivan
OSullivan is listed as a company operating in Office service, employing 1-5 people, reporting $0M-$1M in annual revenue, classified under All Other Business Support Services and based in Westchester, Illinois, United States.
Its primary NAICS classification is 561499 (All Other Business Support Services). OSullivan is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Phone
- +1 (708) 5621675
- Address
- 1513 Waverly Ave, Westchester, Illinois, 60154, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 56Administrative and Support and Waste Management and Remediation Services
- 5614Business Support Services
- 561499All Other Business Support Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7389Convention and Trade Show Organizers
Company Details
- Employees
- 2 (1-5)
- Annual Revenue
- $164,000 ($0M-$1M)
OSullivan: frequently asked questions
What does OSullivan do?
OSullivan is listed as a company operating in Office service, employing 1-5 people, reporting $0M-$1M in annual revenue, classified under All Other Business Support Services and based in Westchester, Illinois, United States.
Where is OSullivan located?
OSullivan is headquartered at 1513 Waverly Ave, Westchester, Illinois, 60154, United States.
How many employees does OSullivan have?
OSullivan has about 2 employees (the 1-5 range).
What is OSullivan's annual revenue?
OSullivan's annual revenue is estimated at $164,000 (the $0M-$1M range).
What industry is OSullivan in?
OSullivan is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561499 (All Other Business Support Services).
How can I contact OSullivan?
Its phone number is +1 (708) 5621675.
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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