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About Psei
Psei is listed as a company classified under Engineering Services, based in Walnut Creek, California, United States, employing 6-10 people and reporting $1M-$5M in annual revenue.
Its primary NAICS classification is 541330 (Engineering Services). Psei is one of 7,660,543 companies listed in California.
Business Contact Information
- Phone
- +1 (925) 4482951
- Fax
- +XXX (925) 4482951
- Website
- psei.co
- Address
- 1501 N Broadway, Walnut Creek, California, 94596, United States
Industry & Classification
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
- 7 (6-10)
- Annual Revenue
- $2.1M ($1M-$5M)
Psei: frequently asked questions
What does Psei do?
Psei is listed as a company classified under Engineering Services, based in Walnut Creek, California, United States, employing 6-10 people and reporting $1M-$5M in annual revenue.
Where is Psei located?
Psei is headquartered at 1501 N Broadway, Walnut Creek, California, 94596, United States.
How many employees does Psei have?
Psei has about 7 employees (the 6-10 range).
What is Psei's annual revenue?
Psei's annual revenue is estimated at $2.1M (the $1M-$5M range).
What industry is Psei in?
Psei's primary NAICS code is 541330 (Engineering Services).
How can I contact Psei?
Its website is psei.co and its phone number is +1 (925) 4482951.
Largest companies in California
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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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