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Products & Services
About Mark Keller
Mark Keller is listed as a company operating in Office service, employing 1-5 people, reporting $0M-$1M in annual revenue, classified under Offices of Lawyers and based in Harbor Springs, Michigan, United States.
Its primary NAICS classification is 541110 (Offices of Lawyers). Mark Keller is one of 528,309 Industrial & mechanical companies listed in Michigan.
Business Contact Information
- Address
- PO Box 504, Harbor Springs, Michigan, 49740, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 54Professional, Scientific, and Technical Services
- 5411Legal Services
- 541110Offices of Lawyers
SIC Codes
- 81Legal Services
- 811Legal Services
- 8111Offices of Lawyers
Company Details
- Employees
- 2 (1-5)
- Annual Revenue
- $143,000 ($0M-$1M)
Mark Keller: frequently asked questions
What does Mark Keller do?
Mark Keller is listed as a company operating in Office service, employing 1-5 people, reporting $0M-$1M in annual revenue, classified under Offices of Lawyers and based in Harbor Springs, Michigan, United States.
Where is Mark Keller located?
Mark Keller is headquartered at PO Box 504, Harbor Springs, Michigan, 49740, United States.
How many employees does Mark Keller have?
Mark Keller has about 2 employees (the 1-5 range).
What is Mark Keller's annual revenue?
Mark Keller's annual revenue is estimated at $143,000 (the $0M-$1M range).
What industry is Mark Keller in?
Mark Keller is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 541110 (Offices of Lawyers).
Largest companies in Michigan
Largest industrial & mechanical companies
Manufacturing sales in Michigan, 2026
In Michigan, Factur's 2026 study counted 81 manufacturing quotes worth $4.7M and 28 purchase orders over 12 months: 35% of quotes became orders, against 21% nationally. See the Michigan data.
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