JOIN21 Ltd
Commercial services · San Luis Obispo, California
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Products & Services
About JOIN21 Ltd
JOIN21 Ltd is a company employing 11-20 people, reporting $5M-$10M in annual revenue, classified under Custom Computer Programming Services, based in San Luis Obispo, California, United States and operating in Office service.
Its primary NAICS classification is 541511 (Custom Computer Programming Services). JOIN21 Ltd is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (805) 5957775
- Website
- join21.com
- linkedin.com/company/join21
- facebook.com/join21as
- Address
- 3940 Broad St, San Luis Obispo, California, 93401, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
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
- $5.5M ($5M-$10M)
JOIN21 Ltd: frequently asked questions
What does JOIN21 Ltd do?
JOIN21 Ltd is a company employing 11-20 people, reporting $5M-$10M in annual revenue, classified under Custom Computer Programming Services, based in San Luis Obispo, California, United States and operating in Office service.
Where is JOIN21 Ltd located?
JOIN21 Ltd is headquartered at 3940 Broad St, San Luis Obispo, California, 93401, United States.
How many employees does JOIN21 Ltd have?
JOIN21 Ltd has about 16 employees (the 11-20 range).
What is JOIN21 Ltd's annual revenue?
JOIN21 Ltd's annual revenue is estimated at $5.5M (the $5M-$10M range).
What industry is JOIN21 Ltd in?
JOIN21 Ltd is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541511 (Custom Computer Programming Services).
How can I contact JOIN21 Ltd?
Its website is join21.com and its phone number is +1 (805) 5957775.
What companies are similar to JOIN21 Ltd?
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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