Telgian Engineering & Consulting LLC

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 541350 Building Inspection Services
• 541380 Testing Laboratories and Services
• 541611 Administrative Management and General Management Consulting Services
• 541690 Other Scientific and Technical Consulting Services
• 541990 All Other Professional, Scientific, and Technical Services

Corporate family

• Telgian Holdings, Inc. Parent Phoenix, AZ EL1NK2HAAS11
  • TEC Chicago

SAM.gov registration date

Nov 16, 2018

Physical address

1020 N Milwaukee Ave #365, Deerfield, IL 60015, USA

Website

telgian.com

Founded

1985

Employees

251-1K

Estimated annual revenue

$50M-$100M

Industry

1. Industrials
2. Capital Goods
3. Construction & Engineering
4. Civil Engineering

SIC code

87 Engineering & Management Services

Profiles

• LinkedIn
• X
• Facebook

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Sep 23, 2026.