Kleinfelder, Inc.

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 541340 Drafting Services
• 541350 Building Inspection Services
• 541370 Surveying and Mapping (except Geophysical) Services
• 541380 Testing Laboratories and Services
• 541430 Graphic Design Services
• 541490 Other Specialized Design Services

Corporate family

• The Kleinfelder Group, Inc. Parent Coronado, CA WN6FYAM8PNL1
  • Kleinfelder, Inc.

SAM.gov registration date

Nov 10, 2023

Physical address

6330 Hedgewood Dr #310, Allentown, PA 18106, USA

Website

kleinfelder.com

Founded

1961

Employees

1K-5K

Estimated annual revenue

$500M-$1B

Industry

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

SIC code

87 Engineering & Management Services

Profiles

• LinkedIn
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• Facebook
• Crunchbase

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Nov 7, 2025.