Oltmans Construction CO.

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 236210 Industrial Building Construction
• 237110 Water and Sewer Line and Related Structures Construction
• 237990 Other Heavy and Civil Engineering Construction
• 238110 Poured Concrete Foundation and Structure Contractors
• 238910 Site Preparation Contractors

SAM.gov registration date

Jul 2, 2002

Physical address

10005 Mission Mill Rd, Whittier, CA 90601, USA

Website

oltmans.com

Founded

1932

Employees

251-1K

Estimated annual revenue

$10M-$50M

Industry

1. Industrials
2. Capital Goods
3. Construction & 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 Dec 4, 2025.