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Products & Services
About Krzyanowski
Marcin Krzyżanowski - iOS/macOS software engineer and open-source contributor. Creator of CryptoSwift, ObjectivePGP, STTextView, Notepad.exe, and Commander.
Its primary NAICS classification is 517111 (Wired Telecommunications Carriers). Krzyanowski is one of 39,468 Communication companies listed in Illinois.
Business Contact Information
- Phone
- +17737729880
- Website
- krzyzanowskim.com
- linkedin.com/company/hakore
- Address
- 1840 N Damen Ave, Chicago, Illinois, 60647, United States
Industry & Classification
- Industry
- Communication
- Sector
- Telecommunication
- Segment
- Telecommunication providers
NAICS Codes
- 51Information
- 5171Wired and Wireless Telecommunications (except Satellite)
- 517111Wired Telecommunications Carriers
SIC Codes
- 48Communications
- 481Telephone Communications
- 4813Wired Telecommunications Carriers
Company Details
- Employees
- 12 (11-20)
- Annual Revenue
- $2.1M ($1M-$5M)
Krzyanowski: frequently asked questions
What does Krzyanowski do?
Marcin Krzyżanowski - iOS/macOS software engineer and open-source contributor. Creator of CryptoSwift, ObjectivePGP, STTextView, Notepad.exe, and Commander.
Where is Krzyanowski located?
Krzyanowski is headquartered at 1840 N Damen Ave, Chicago, Illinois, 60647, United States.
How many employees does Krzyanowski have?
Krzyanowski has about 12 employees (the 11-20 range).
What is Krzyanowski's annual revenue?
Krzyanowski's annual revenue is estimated at $2.1M (the $1M-$5M range).
What industry is Krzyanowski in?
Krzyanowski is in the Communication / Telecommunication industry, and its primary NAICS code is 517111 (Wired Telecommunications Carriers).
How can I contact Krzyanowski?
Its website is krzyzanowskim.com and its phone number is +17737729880.
What companies are similar to Krzyanowski?
Other large communication companies in Illinois include Etisalat, Assurance Wireless, Telephone and Data Systems Inc and Telephone and Data Systems Inc.
Largest companies in Illinois
Largest communication 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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