One Security Group Inc
Commercial services · Oakland, California
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Products & Services
About One Security Group Inc
This profile covers One Security Group Inc, a company employing 51-100 people, reporting $5M-$10M in annual revenue, classified under Investigation and Security Services, based in Oakland, California, United States and operating in Office service.
Its primary NAICS classification is 561612 (Security Guards and Patrol Services). One Security Group Inc is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (510) 3389002
- Address
- 405 14th St, Oakland, California, 94612, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 56Administrative and Support and Waste Management and Remediation Services
- 5616Investigation and Security Services
- 561612Security Guards and Patrol Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7381Investigation Services
Company Details
- Employees
- 61 (51-100)
- Annual Revenue
- $6.5M ($5M-$10M)
One Security Group Inc: frequently asked questions
What does One Security Group Inc do?
This profile covers One Security Group Inc, a company employing 51-100 people, reporting $5M-$10M in annual revenue, classified under Investigation and Security Services, based in Oakland, California, United States and operating in Office service.
Where is One Security Group Inc located?
One Security Group Inc is headquartered at 405 14th St, Oakland, California, 94612, United States.
How many employees does One Security Group Inc have?
One Security Group Inc has about 61 employees (the 51-100 range).
What is One Security Group Inc's annual revenue?
One Security Group Inc's annual revenue is estimated at $6.5M (the $5M-$10M range).
What industry is One Security Group Inc in?
One Security Group Inc is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561612 (Security Guards and Patrol Services).
How can I contact One Security Group Inc?
Its phone number is +1 (510) 3389002.
What companies are similar to One Security Group 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
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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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