Prohns-Mackay Sposito Joint Venture, LLC

Company facts

Self-certified in SAM.gov

• For Profit Organization
• Small Business Joint Venture
• Self-Certified HUBZone Joint Venture
• Limited Liability Company

Entity structure

Other

Other NAICS codes in SAM.gov

• 237120 Oil and Gas Pipeline and Related Structures Construction
• 237130 Power and Communication Line and Related Structures Construction
• 237310 Highway, Street, and Bridge Construction
• 237990 Other Heavy and Civil Engineering Construction
• 541320 Landscape Architectural Services
• 541340 Drafting Services
• 541350 Building Inspection Services
• 541370 Surveying and Mapping (except Geophysical) Services

Show all 12

• 541380 Testing Laboratories and Services
• 541620 Environmental Consulting Services
• 541690 Other Scientific and Technical Consulting Services
• 541990 All Other Professional, Scientific, and Technical Services

Corporate family

• Prohns LLC Parent Juneau, AK KW5VADW5X6C9
  • Prohns-Mackay Sposito Joint Venture, LLC

SAM.gov registration date

May 19, 2020

Physical address

2201 Dunn St #2, Juneau, AK 99801, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Jun 17, 2025.