Diana Ism Co., LTD.

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (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)
• 236210 Industrial Building Construction
• 236220 Commercial and Institutional Building Construction
• 237110 Water and Sewer Line and Related Structures Construction
• 238110 Poured Concrete Foundation and Structure Contractors
• 238120 Structural Steel and Precast Concrete Contractors
• 238190 Other Foundation, Structure, and Building Exterior Contractors

Show all 16

• 238220 Plumbing, Heating, and Air-Conditioning Contractors
• 238330 Flooring Contractors
• 238910 Site Preparation Contractors
• 423320 Brick, Stone, and Related Construction Material Merchant Wholesalers
• 423390 Other Construction Material Merchant Wholesalers
• 561210 Facilities Support Services
• 561790 Other Services to Buildings and Dwellings
• 811310 Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance

SAM.gov registration date

Jun 8, 2025

Physical address

4 Chome Hakusan, Bunkyo City, Tokyo 112-0001, Japan

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated May 10, 2026.