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About Siebert Engineers
Siebert Engineers is a company based in Lombard, Illinois, United States, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Engineering Services.
Its primary NAICS classification is 541330 (Engineering Services). Siebert Engineers is one of 1,843,395 companies listed in Illinois.
Business Contact Information
- Phone
- +1 (630) 2680020
- Address
- 261 Eisenhower Ln S, Lombard, Illinois, 60148, United States
Industry & Classification
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5413Architectural, Engineering, and Related Services
- 541330Engineering Services
SIC Codes
- 87Engineering, Accounting, Research, Management, And Related Services
- 871Engineering, Architectural, And Surveying
- 8711Engineering Services
Company Details
- Employees
- 40 (21-50)
- Annual Revenue
- $4.3M ($1M-$5M)
Siebert Engineers: frequently asked questions
What does Siebert Engineers do?
Siebert Engineers is a company based in Lombard, Illinois, United States, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Engineering Services.
Where is Siebert Engineers located?
Siebert Engineers is headquartered at 261 Eisenhower Ln S, Lombard, Illinois, 60148, United States.
How many employees does Siebert Engineers have?
Siebert Engineers has about 40 employees (the 21-50 range).
What is Siebert Engineers's annual revenue?
Siebert Engineers's annual revenue is estimated at $4.3M (the $1M-$5M range).
What industry is Siebert Engineers in?
Siebert Engineers's primary NAICS code is 541330 (Engineering Services).
How can I contact Siebert Engineers?
Its phone number is +1 (630) 2680020.
Largest companies in Illinois
Largest companies on Factur
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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