John A. Mardenborough Foundation Inc.

Company facts

Self-certified in SAM.gov

• Minority Owned Business
• Non-Profit Organization
• Foundation
• Black American Owned

Entity structure

Corporate Entity (Tax Exempt)

Other NAICS codes in SAM.gov

• 541611 Administrative Management and General Management Consulting Services
• 541612 Human Resources Consulting Services
• 561499 All Other Business Support Services
• 561920 Convention and Trade Show Organizers
• 611430 Professional and Management Development Training
• 611513 Apprenticeship Training
• 611710 Educational Support Services
• 813211 Grantmaking Foundations

Show all 11

• 813219 Other Grantmaking and Giving Services
• 813910 Business Associations
• 813920 Professional Organizations

SAM.gov registration date

Jul 24, 2024

Physical address

1720 Chapel Rd, Havre De Grace, MD 21078, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Jun 5, 2026.