John Henry Effect
Commercial services · Oakland, California
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Products & Services
About John Henry Effect
John Henry Effect is a company classified under Offices of Lawyers, based in Oakland, California, United States, operating in Office service, employing 6-10 people and reporting $0M-$1M in annual revenue.
Its primary NAICS classification is 541110 (Offices of Lawyers). John Henry Effect is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Address
- 5806 Nottingham Dr, Oakland, California, 94611, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5411Legal Services
- 541110Offices of Lawyers
SIC Codes
- 81Legal Services
- 811Legal Services
- 8111Offices of Lawyers
Company Details
- Employees
- 6 (6-10)
- Annual Revenue
- $413,000 ($0M-$1M)
John Henry Effect: frequently asked questions
What does John Henry Effect do?
John Henry Effect is a company classified under Offices of Lawyers, based in Oakland, California, United States, operating in Office service, employing 6-10 people and reporting $0M-$1M in annual revenue.
Where is John Henry Effect located?
John Henry Effect is headquartered at 5806 Nottingham Dr, Oakland, California, 94611, United States.
How many employees does John Henry Effect have?
John Henry Effect has about 6 employees (the 6-10 range).
What is John Henry Effect's annual revenue?
John Henry Effect's annual revenue is estimated at $413,000 (the $0M-$1M range).
What industry is John Henry Effect in?
John Henry Effect is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541110 (Offices of Lawyers).
What companies are similar to John Henry Effect?
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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