GRP & Associates, Inc.

Company facts

Self-certified in SAM.gov

• For Profit Organization

Entity structure

Corporate Entity (Not Tax Exempt)

Other NAICS codes in SAM.gov

• 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers
• 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance
• 493110 General Warehousing and Storage
• 541380 Testing Laboratories and Services
• 541620 Environmental Consulting Services
• 541990 All Other Professional, Scientific, and Technical Services
• 561790 Other Services to Buildings and Dwellings
• 562219 Other Nonhazardous Waste Treatment and Disposal

Show all 10

• 562910 Remediation Services
• 562920 Materials Recovery Facilities

SAM.gov registration date

Feb 9, 2026

Physical address

935 15th St SW, Mason City, IA 50401, USA

Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated Sep 29, 2026.