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Products & Services
About Harper John
Harper John is a company employing 1-5 people, reporting $0M-$1M in annual revenue, classified under All Other Business Support Services, based in Walnut Creek, California, United States and operating in Office service.
Its primary NAICS classification is 561499 (All Other Business Support Services). Harper John is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (925) 2953024
- linkedin.com/company/harper-john
- Address
- 2099 Mt Diablo Blvd, Walnut Creek, California, 94596, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 56Administrative and Support and Waste Management and Remediation Services
- 5614Business Support Services
- 561499All Other Business Support Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7389Convention and Trade Show Organizers
Company Details
- Employees
- 4 (1-5)
- Annual Revenue
- $167,000 ($0M-$1M)
Harper John: frequently asked questions
What does Harper John do?
Harper John is a company employing 1-5 people, reporting $0M-$1M in annual revenue, classified under All Other Business Support Services, based in Walnut Creek, California, United States and operating in Office service.
Where is Harper John located?
Harper John is headquartered at 2099 Mt Diablo Blvd, Walnut Creek, California, 94596, United States.
How many employees does Harper John have?
Harper John has about 4 employees (the 1-5 range).
What is Harper John's annual revenue?
Harper John's annual revenue is estimated at $167,000 (the $0M-$1M range).
What industry is Harper John in?
Harper John is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561499 (All Other Business Support Services).
How can I contact Harper John?
Its phone number is +1 (925) 2953024.
What companies are similar to Harper John?
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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