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About 3Si
This profile covers 3Si, a company reporting $0M-$1M in annual revenue, classified under Other Computer Related Services, based in Northfield, Massachusetts, United States and employing 1-5 people.
Its primary NAICS classification is 541519 (Other Computer Related Services). 3Si is one of 1,441,867 companies listed in Massachusetts.
Business Contact Information
- Phone
- +1 (413) 4982714
- Website
- www.3si.net
- Address
- 168 Main St, Northfield, Massachusetts, 1360, United States
Industry & Classification
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5415Computer Systems Design and Related Services
- 541519Other Computer Related Services
SIC Codes
- 73Business Services
- 737Computer Programming, Data Processing, And Other Computer Related Services
- 7379Other Computer Related Services
Company Details
- Employees
- 3 (1-5)
- Annual Revenue
- $541,000 ($0M-$1M)
3Si: frequently asked questions
What does 3Si do?
This profile covers 3Si, a company reporting $0M-$1M in annual revenue, classified under Other Computer Related Services, based in Northfield, Massachusetts, United States and employing 1-5 people.
Where is 3Si located?
3Si is headquartered at 168 Main St, Northfield, Massachusetts, 1360, United States.
How many employees does 3Si have?
3Si has about 3 employees (the 1-5 range).
What is 3Si's annual revenue?
3Si's annual revenue is estimated at $541,000 (the $0M-$1M range).
What industry is 3Si in?
3Si's primary NAICS code is 541519 (Other Computer Related Services).
How can I contact 3Si?
Its website is www.3si.net and its phone number is +1 (413) 4982714.
Largest companies in Massachusetts
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Manufacturing sales in Massachusetts, 2026
In Massachusetts, Factur's 2026 study counted 32 manufacturing quotes worth $961K and 7 purchase orders over 12 months: 22% of quotes became orders, against 21% nationally. See the Massachusetts data.
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