The Difference Engine
Commercial services · Chicago, Illinois
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Products & Services
About The Difference Engine
This profile covers The Difference Engine, a company employing 101-250 people, reporting $5M-$10M in annual revenue, classified under Educational Services, based in Chicago, Illinois, United States and operating in Office service.
Its primary NAICS classification is 611513 (Apprenticeship Training). The Difference Engine is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Phone
- +1 (773) 9778144
- Website
- thedifferenceengine.io
- Address
- 222 Merchandise Mart Plz, Chicago, Illinois, 60654, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 61Educational Services
- 6115Technical and Trade Schools
- 611513Apprenticeship Training
SIC Codes
- 82Educational Services
- 824Vocational Schools
- 8249Apprenticeship Training
Company Details
- Employees
- 151 (101-250)
- Annual Revenue
- $6.7M ($5M-$10M)
The Difference Engine: frequently asked questions
What does The Difference Engine do?
This profile covers The Difference Engine, a company employing 101-250 people, reporting $5M-$10M in annual revenue, classified under Educational Services, based in Chicago, Illinois, United States and operating in Office service.
Where is The Difference Engine located?
The Difference Engine is headquartered at 222 Merchandise Mart Plz, Chicago, Illinois, 60654, United States.
How many employees does The Difference Engine have?
The Difference Engine has about 151 employees (the 101-250 range).
What is The Difference Engine's annual revenue?
The Difference Engine's annual revenue is estimated at $6.7M (the $5M-$10M range).
What industry is The Difference Engine in?
The Difference Engine is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 611513 (Apprenticeship Training).
How can I contact The Difference Engine?
Its website is thedifferenceengine.io and its phone number is +1 (773) 9778144.
Largest companies in Illinois
Largest industrial & mechanical companies
Manufacturing sales in Illinois, 2026
In Illinois, Factur's 2026 study counted 74 manufacturing quotes worth $11.8M and 14 purchase orders over 12 months: 19% of quotes became orders, against 21% nationally. See the Illinois data.
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