J28 Group Inc.

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 236115 New Single-Family Housing Construction (except For-Sale Builders)
• 236116 New Multifamily Housing Construction (except For-Sale Builders)
• 236117 New Housing For-Sale Builders
• 236118 Residential Remodelers
• 236210 Industrial Building Construction
• 236220 Commercial and Institutional Building Construction
• 237110 Water and Sewer Line and Related Structures Construction
• 237120 Oil and Gas Pipeline and Related Structures Construction

Show all 64

• 237130 Power and Communication Line and Related Structures Construction
• 237210 Land Subdivision
• 237990 Other Heavy and Civil Engineering Construction
• 238110 Poured Concrete Foundation and Structure Contractors
• 238120 Structural Steel and Precast Concrete Contractors
• 238130 Framing Contractors
• 238140 Masonry Contractors
• 238150 Glass and Glazing Contractors
• 238160 Roofing Contractors
• 238170 Siding Contractors
• 238190 Other Foundation, Structure, and Building Exterior Contractors
• 238210 Electrical Contractors and Other Wiring Installation Contractors
• 238220 Plumbing, Heating, and Air-Conditioning Contractors
• 238290 Other Building Equipment Contractors
• 238310 Drywall and Insulation Contractors
• 238320 Painting and Wall Covering Contractors
• 238330 Flooring Contractors
• 238340 Tile and Terrazzo Contractors
• 238350 Finish Carpentry Contractors
• 238390 Other Building Finishing Contractors
• 238910 Site Preparation Contractors
• 238990 All Other Specialty Trade Contractors
• 339112 Surgical and Medical Instrument Manufacturing
• 339114 Dental Equipment and Supplies Manufacturing
• 339115 Ophthalmic Goods Manufacturing
• 423310 Lumber, Plywood, Millwork, and Wood Panel Merchant Wholesalers
• 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers
• 423390 Other Construction Material Merchant Wholesalers
• 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
• 423510 Metal Service Centers and Other Metal Merchant Wholesalers
• 423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers
• 423840 Industrial Supplies Merchant Wholesalers
• 424210 Drugs and Druggists' Sundries Merchant Wholesalers
• 484110 General Freight Trucking, Local
• 484121 General Freight Trucking, Long-Distance, Truckload
• 484122 General Freight Trucking, Long-Distance, Less Than Truckload
• 484220 Specialized Freight (except Used Goods) Trucking, Local
• 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance
• 488510 Freight Transportation Arrangement
• 492110 Couriers and Express Delivery Services
• 541511 Custom Computer Programming Services
• 541512 Computer Systems Design Services
• 541611 Administrative Management and General Management Consulting Services
• 541612 Human Resources Consulting Services
• 541613 Marketing Consulting Services
• 541618 Other Management Consulting Services
• 541690 Other Scientific and Technical Consulting Services
• 621491 HMO Medical Centers
• 621610 Home Health Care Services
• 623110 Nursing Care Facilities (Skilled Nursing Facilities)
• 624120 Services for the Elderly and Persons with Disabilities
• 811420 Reupholstery and Furniture Repair
• 812310 Coin-Operated Laundries and Drycleaners
• 812320 Drycleaning and Laundry Services (except Coin-Operated)
• 812332 Industrial Launderers
• 812990 All Other Personal Services

SAM.gov registration date

Nov 12, 2025

Physical address

3604 Neptune Ave, Brooklyn, NY 11224, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Nov 20, 2025.