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Products & Services
About 21Tech LLC
21Tech LLC is listed as a company based in Los Altos, California, United States, operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue and classified under Administrative Management and General Management Consulting Services.
Its primary NAICS classification is 541611 (Administrative Management and General Management Consulting Services). 21Tech LLC is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (415) 3559090
- Website
- 21techsandbox.com
- linkedin.com/company/21tech
- Address
- 220 Main St, Los Altos, California, 94022, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5416Management, Scientific, and Technical Consulting Services
- 541611Administrative Management and General Management Consulting Services
SIC Codes
- 87Engineering, Accounting, Research, Management, And Related Services
- 874Management And Public Relations Services
- 8742Marketing Consulting Services
Company Details
- Employees
- 13 (11-20)
- Annual Revenue
- $4.6M ($1M-$5M)
21Tech LLC: frequently asked questions
What does 21Tech LLC do?
21Tech LLC is listed as a company based in Los Altos, California, United States, operating in Office service, employing 11-20 people, reporting $1M-$5M in annual revenue and classified under Administrative Management and General Management Consulting Services.
Where is 21Tech LLC located?
21Tech LLC is headquartered at 220 Main St, Los Altos, California, 94022, United States.
How many employees does 21Tech LLC have?
21Tech LLC has about 13 employees (the 11-20 range).
What is 21Tech LLC's annual revenue?
21Tech LLC's annual revenue is estimated at $4.6M (the $1M-$5M range).
What industry is 21Tech LLC in?
21Tech LLC is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541611 (Administrative Management and General Management Consulting Services).
How can I contact 21Tech LLC?
Its website is 21techsandbox.com and its phone number is +1 (415) 3559090.
What companies are similar to 21Tech LLC?
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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