Thomas Engineering Group LLC
Construction · Oak Brook, Illinois
Products & Services
About Thomas Engineering Group LLC
Thomas Engineering Group, LLC (TEG), founded in 2008, provides reliable, sustainable, cost-effective solutions to the engineering needs of State, County, and Local Agency clients.
Its primary NAICS classification is 541330 (Engineering Services). Thomas Engineering Group LLC is one of 6,047 Construction companies listed in Illinois.
Business Contact Information
- Phone
- +1 (855) 5331700
- facebook.com/tegllc
- Address
- 2625 Butterfield Rd, Oak Brook, Illinois, 60523, United States
Industry & Classification
- Industry
- Construction
- Sector
- Construction
- Segment
- Industrial construction
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
- 42 (21-50)
- Annual Revenue
- $13.9M ($10M-$25M)
Thomas Engineering Group LLC: frequently asked questions
What does Thomas Engineering Group LLC do?
Thomas Engineering Group, LLC (TEG), founded in 2008, provides reliable, sustainable, cost-effective solutions to the engineering needs of State, County, and Local Agency clients.
Where is Thomas Engineering Group LLC located?
Thomas Engineering Group LLC is headquartered at 2625 Butterfield Rd, Oak Brook, Illinois, 60523, United States.
How many employees does Thomas Engineering Group LLC have?
Thomas Engineering Group LLC has about 42 employees (the 21-50 range).
What is Thomas Engineering Group LLC's annual revenue?
Thomas Engineering Group LLC's annual revenue is estimated at $13.9M (the $10M-$25M range).
What industry is Thomas Engineering Group LLC in?
Thomas Engineering Group LLC is in the Construction / Construction industry, and its primary NAICS code is 541330 (Engineering Services).
How can I contact Thomas Engineering Group LLC?
Its website is www.thomas-engineering.com and its phone number is +1 (855) 5331700.
What companies are similar to Thomas Engineering Group LLC?
Other large construction companies in Illinois include Clayco Inc, Tecta America Corp, Enppi and Power Construction.
Largest construction companies in Illinois
Largest companies in Illinois
Largest construction 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.
Own this business?
Keep your profile accurate — or ask us to take it down. We acknowledge requests within 7 days and resolve them within 30 days.
Prefer email? privacy@facturmfg.com
Add this badge to your website — show visitors you're listed on Factur Data.