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

• 221111 Hydroelectric Power Generation
• 221114 Solar Electric Power Generation
• 221115 Wind Electric Power Generation
• 221310 Water Supply and Irrigation Systems
• 237110 Water and Sewer Line and Related Structures Construction
• 237990 Other Heavy and Civil Engineering Construction
• 541310 Architectural Services
• 541340 Drafting Services

Show all 13

• 541350 Building Inspection Services
• 541370 Surveying and Mapping (except Geophysical) Services
• 541380 Testing Laboratories and Services
• 541620 Environmental Consulting Services
• 561210 Facilities Support Services

Corporate family

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

SAM.gov registration date

Mar 28, 2024

Physical address

150 Capitol St #2, Augusta, ME 04330, 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

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Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Mar 26, 2026.