Products & Services
About Diffco
Diffco is the leading software development and staff augmentation company. Full-cycle custom software development and dedicated teams. Top developers for hire.
Its primary NAICS classification is 541511 (Custom Computer Programming Services). Diffco is one of 2,121,238 Industrial & mechanical companies listed in California.
Business Contact Information
- Phone
- +1 (415) 6551002
- Website
- diffco.us
- linkedin.com/company/diffco
- facebook.com/diffco.ag
- Address
- 333 W San Carlos St, San Jose, California, 95110, 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
- 15 (11-20)
- Annual Revenue
- $15.5M ($10M-$25M)
Diffco: frequently asked questions
What does Diffco do?
Diffco is the leading software development and staff augmentation company. Full-cycle custom software development and dedicated teams. Top developers for hire.
Where is Diffco located?
Diffco is headquartered at 333 W San Carlos St, San Jose, California, 95110, United States.
How many employees does Diffco have?
Diffco has about 15 employees (the 11-20 range).
What is Diffco's annual revenue?
Diffco's annual revenue is estimated at $15.5M (the $10M-$25M range).
What industry is Diffco in?
Diffco is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541511 (Custom Computer Programming Services).
How can I contact Diffco?
Its website is diffco.us and its phone number is +1 (415) 6551002.
What companies are similar to Diffco?
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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