Psomas Co
Construction · Los Angeles, California
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Products & Services
About Psomas Co
Psomas is an employee-owned engineering and consulting firm providing innovative infrastructure, transportation, environmental, and surveying solutions.
Its primary NAICS classification is 541330 (Engineering Services). Psomas Co is one of 26,724 Construction companies listed in California.
Business Contact Information
- Phone
- +1 (213) 2231400
- Fax
- +XXX (530) 8855798
- Website
- www.psomas.com
- linkedin.com/company/psomas
- facebook.com/psoma
- Address
- 865 S Figueroa St, Los Angeles, California, 90017, 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
- 800 (501-1,000)
- Annual Revenue
- $251.2M ($250M-$500M)
Psomas Co: frequently asked questions
What does Psomas Co do?
Psomas is an employee-owned engineering and consulting firm providing innovative infrastructure, transportation, environmental, and surveying solutions.
Where is Psomas Co located?
Psomas Co is headquartered at 865 S Figueroa St, Los Angeles, California, 90017, United States.
How many employees does Psomas Co have?
Psomas Co has about 800 employees (the 501-1,000 range).
What is Psomas Co's annual revenue?
Psomas Co's annual revenue is estimated at $251.2M (the $250M-$500M range).
What industry is Psomas Co in?
Psomas Co is in the Construction / Construction industry, and its primary NAICS code is 541330 (Engineering Services).
How can I contact Psomas Co?
Its website is www.psomas.com and its phone number is +1 (213) 2231400.
What companies are similar to Psomas Co?
Other large construction companies in California include Hyundai Engineering & Construction Co. Ltd, RSK Group, Takenaka Corp and Daewoo Construction.
Largest construction companies in California
Largest companies in California
Largest construction companies
Manufacturing sales in California, 2026
In California, Factur's 2026 study counted 98 manufacturing quotes worth $14.7M and 18 purchase orders over 12 months: 18% of quotes became orders, against 21% nationally. See the California data.
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