Duffy Engineering Inc
Construction · Minnesota
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Products & Services
About Duffy Engineering Inc
Duffy Engineering Inc is a company employing 10 people, reporting $1M in annual revenue, classified under Engineering Services, based in Minnesota, United States and operating in Industrial construction.
Its primary NAICS classification is 541330 (Engineering Services). Duffy Engineering Inc is one of 5,091 Construction companies listed in Minnesota.
Business Contact Information
- Phone
- (320) 259-6575
- Fax
- (320) 259-6991
- Website
- www.duffyeng.com
- Address
- Minnesota, United States
Industry & Classification
- Industry
- Construction
- Sector
- Construction
- Segment
- Industrial construction
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 541Professional, Scientific, and Technical Services
- 5413Architectural, Engineering, and Related Services
- 54133Engineering Services
- 541330Engineering Services
SIC Codes
- 87Engineering, Accounting, Research, Management, And Related Services
- 871Engineering, Architectural, And Surveying
- 8711Engineering Services
Company Details
- Employees
- 10
- Annual Revenue
- $972,000
Duffy Engineering Inc: frequently asked questions
What does Duffy Engineering Inc do?
Duffy Engineering Inc is a company employing 10 people, reporting $1M in annual revenue, classified under Engineering Services, based in Minnesota, United States and operating in Industrial construction.
Where is Duffy Engineering Inc located?
Duffy Engineering Inc is located in Minnesota, United States.
How many employees does Duffy Engineering Inc have?
Duffy Engineering Inc has about 10 employees.
What is Duffy Engineering Inc's annual revenue?
Duffy Engineering Inc's annual revenue is estimated at $972,000.
What industry is Duffy Engineering Inc in?
Duffy Engineering Inc is in the Construction / Construction industry, and its primary NAICS code is 541330 (Engineering Services).
How can I contact Duffy Engineering Inc?
Its website is www.duffyeng.com and its phone number is (320) 259-6575.
What companies are similar to Duffy Engineering Inc?
Other large construction companies in Minnesota include M A Mortenson Co, Ryan Companies US Inc, Smiths and Kurita America Inc.
Largest construction companies in Minnesota
Largest construction companies
Manufacturing sales in Minnesota, 2026
In Minnesota, Factur's 2026 study counted 32 manufacturing quotes worth $307K and 7 purchase orders over 12 months: 22% of quotes became orders, against 21% nationally. See the Minnesota data.
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