Prosum Inc
Commercial services · Westlake Village, California
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Products & Services
About Prosum Inc
Prosum Inc is listed as a company based in Westlake Village, California, United States, operating in Office service, employing 251-500 people, reporting $100M-$250M in annual revenue and classified under Computer Systems Design Services.
Its primary NAICS classification is 541512 (Computer Systems Design Services). Prosum Inc is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (805) 4464330
- Website
- prosum.com
- linkedin.com/company/prosum
- facebook.com/prosumla
- Address
- 370 N Westlake Blvd, Westlake Village, California, 91362, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5415Computer Systems Design and Related Services
- 541512Computer Systems Design Services
SIC Codes
- 73Business Services
- 737Computer Programming, Data Processing, And Other Computer Related Services
- 7373Computer Systems Design Services
Company Details
- Employees
- 259 (251-500)
- Annual Revenue
- $138.3M ($100M-$250M)
Prosum Inc: frequently asked questions
What does Prosum Inc do?
Prosum Inc is listed as a company based in Westlake Village, California, United States, operating in Office service, employing 251-500 people, reporting $100M-$250M in annual revenue and classified under Computer Systems Design Services.
Where is Prosum Inc located?
Prosum Inc is headquartered at 370 N Westlake Blvd, Westlake Village, California, 91362, United States.
How many employees does Prosum Inc have?
Prosum Inc has about 259 employees (the 251-500 range).
What is Prosum Inc's annual revenue?
Prosum Inc's annual revenue is estimated at $138.3M (the $100M-$250M range).
What industry is Prosum Inc in?
Prosum Inc is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541512 (Computer Systems Design Services).
How can I contact Prosum Inc?
Its website is prosum.com and its phone number is +1 (805) 4464330.
What companies are similar to Prosum Inc?
Other large industrial & mechanical companies in California include State of California, TD SYNNEX Corp, University of California and Ingram Micro Holding Corp.
Largest industrial & mechanical companies in California
Largest companies in California
Largest industrial & mechanical 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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