| The 38 National American Industry Classification System (NAICS) codes in which WOSBs are substantially underrepresented are: |
| 2372 - Land Subdivision |
| 3152 - Cut and Sew Apparel Manufacturing |
| 3231 - Printing and Related Support Activities |
| 3259 - Other Chemical Product and Preparation Manufacturing |
| 3328 - Coating, Engraving, Heat Treating, and Allied Activities |
| 3329 - Other Fabricated Metal Product Manufacturing |
| 3371 - Household and Institutional Furniture and Kitchen Cabinet Manufacturing |
| 3372 - Office Furniture (including Fixtures) Manufacturing |
| 3391 - Medical Equipment and Supplies Manufacturing |
| 4841 - General Freight Trucking |
| 4889 - Other Support Activities for Transportation |
| 4931 - Warehousing and Storage |
| 5111 - Newspaper, Periodical, Book, and Directory Publishers |
| 5112 - Software Publishers |
| 5171 - Wired Telecommunications Carriers |
| 5172 - Wireless Telecommunications Carriers (except Satellite) |
| 5179 - Other Telecommunications |
| 5182 - Data Processing, Hosting, and Related Services |
| 5191 - Other Information Services |
| 5312 - Offices of Real Estate Agents and Brokers |
| 5324 - Commercial and Industrial Machinery and Equipment Rental and Leasing |
| 5411 - Legal Services |
| 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services |
| 5417 - Scientific Research and Development Services |
| 5418 - Advertising, Public Relations, and Related Services |
| 5615 - Travel Arrangement and Reservation Services |
| 5619 - Other Support Services |
| 5621 - Waste Collection |
| 5622 - Waste Treatment and Disposal |
| 6114 - Business Schools and Computer and Management Training |
| 6115 - Technical and Trade Schools |
| 6117 - Educational Support Services |
| 6242 - Community Food and Housing, and Emergency and Other Relief Services |
| 6243 - Vocational Rehabilitation Services |
| 7211 - Traveler Accommodation |
| 8112 - Electronic and Precision Equipment Repair and Maintenance |
| 8129 - Other Personal Services |
| 8139 - Business, Professional, Labor, Political, and Similar Organizations |
