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Products & Services
About System One
System One is listed as a company operating in Software, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Custom Computer Programming Services and based in Carson, California, United States.
Its primary NAICS classification is 541511 (Custom Computer Programming Services). System One is one of 38,661 IT companies listed in California.
Business Contact Information
- Phone
- +1 (626) 9263638
- Website
- systemonepro.com
- Address
- 1 Pro 1210 E 223rd St, Carson, California, 90745, United States
Industry & Classification
- Industry
- IT
- Sector
- Software and Services
- Segment
- Software
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5415Computer Systems Design and Related Services
- 541511Custom Computer Programming Services
SIC Codes
- 73Business Services
- 737Computer Programming, Data Processing, And Other Computer Related Services
- 7371Custom Computer Programming Services
Company Details
- Employees
- 16 (11-20)
- Annual Revenue
- $4.3M ($1M-$5M)
System One: frequently asked questions
What does System One do?
System One is listed as a company operating in Software, employing 11-20 people, reporting $1M-$5M in annual revenue, classified under Custom Computer Programming Services and based in Carson, California, United States.
Where is System One located?
System One is headquartered at 1 Pro 1210 E 223rd St, Carson, California, 90745, United States.
How many employees does System One have?
System One has about 16 employees (the 11-20 range).
What is System One's annual revenue?
System One's annual revenue is estimated at $4.3M (the $1M-$5M range).
What industry is System One in?
System One is in the IT / Software and Services industry, and its primary NAICS code is 541511 (Custom Computer Programming Services).
How can I contact System One?
Its website is systemonepro.com and its phone number is +1 (626) 9263638.
What companies are similar to System One?
Other large iT companies in California include JD.com, Salesforce Inc, Didi Chuxing Technology Co and Adobe Inc.
Largest it 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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