IIA to NAICS Industry Code Mapping - The Institute of Internal Auditors

IIA to NAICS
Industry Code Mapping
IIA Code​
​Industry Name
NAICS Code
100
Agricultural, Forestry, Fisheries, Production/Services
1000
Mining
212 Mining (except Oil and Gas)
1300
Oil and Gas Extraction
211 Oil and Gas Extraction
1500
Construction
23 Construction (Please select Industry Code within this Grouping)
2000
Food/Kindred Products
311 Food Manufacturing
2100
Tobacco Manufacturers
312 Beverage and Tobacco Product Manufacturing
2200
Textile Mill Products/Apparel
313 Textile Mills
2400
Lumber/Wood Products (includes furniture/fixtures)
2600
Paper & Allied Products (includes printing/publishing)
2800
Chemicals
325 Chemical Manufacturing
2830
Drugs and Research
325 Chemical Manufacturing
2840
Petroleum Refining and Related Industries
324 Petroleum and Coal Products Manufacturing
3010
Rubber and Plastics Products
326 Plastics and Rubber Products Manufacturing
3100
Leather, Stone and Glass Products
316 Leather and Allied Product Manufacturing
3300
331 Primary Metal Manufacturing
3500
Primary Metal Industries
Fabricated Metal Products (includes non-electric
machinery)
Industrial and Commercial Machinery
3510
Aerospace
927 Space Research and Technology
3520
Computers and Related Devices, Equipment
334 Computer and Electronic Product Manufacturing
3600
Electrical Machinery, Electronic Equipment and Supplies
3700
Transportation Equipment
336 Transportation Equipment Manufacturing
3800
Scientific, Photographic, Medical Goods
325 Chemical Manufacturing
3900
Miscellaneous Manufacturing Industries
339 Miscellaneous Manufacturing
4000
Land Transportation
482 Rail TransportationT/484 Truck Transportation
4400
Water Transportation
483 Water Transportation
4500
Air Transportation
481 Air Transportation
4700
Other Transportation Services
485 Transit and Ground Passenger Transportation
4800
Communication Services
517 Telecommunications
4810
Telecommunications
517 Telecommunications
4900
Electric/Gas/Sanitary Services
221 Utilities
4910
Gas Services
221 Utilities
4920
Gas and Electric Services
221 Utilities
4930
Sanitary Services
562 Waste Management and Remediation Services
5000
Wholesale Trade
42 Wholesale Trade (Please select Industry Code within this Grouping)
5300
Retail Trade
44-45 Retail Trade (Please select Industry Code within this Grouping)
5800
Eating and Drinking Places
722 Food Services and Drinking Places
6000
Banking and Financial Institutions
522 Credit Intermediation and Related Activities (Includes depository and non-depository institutions)
6030
Nonbanking Bank Services (e.g., leasing)
522 Credit Intermediation and Related Activities (Includes depository and non-depository institutions)
6040
Thrift and Savings and Loan Organizations
522 Credit Intermediation and Related Activities (Includes depository and non-depository institutions)
6100
Credit Unions
522 Credit Intermediation and Related Activities (Includes depository and non-depository institutions)
6130
Other Credit Agencies
522 Credit Intermediation and Related Activities (Includes depository and non-depository institutions)
6200
Security and Commodity Services
523 Securities, Commodity Contracts, and Other Financial Investments and Related Activities
6300
Insurance Carriers, Agents, Services
524 Insurance Carriers and Related Activities
6500
Real Estate Services
53 Real Estate and Rental and Leasing (Please select Industry Code within this Grouping)
6700
Holding/Investment Companies
525 Funds, Trusts, and Other Financial Vehicles
7000
Hotels/Lodging Services
721 Accommodation
7200
Personal/Social Services
812 Personal and Laundry Services
7300
Contracted Audit Services
54 Professional, Scientific, and Technical Services
7310
Management Consultants
541 Professional, Scientific, and Technical Services
7320
Information Technology Services
519 Other Information Services
7330
Executive Placement Services
54 Professional, Scientific, and Technical Services (Please select Industry Code within this Grouping)
7500
Repair Services
811 Repair and Maintenance
7600
Gaming/Lottery
713 Amusement, Gambling, and Recreation Industries
7800
Motion Pictures/Amusement and Recreational Services
8000
Health Services
62 Health Care and Social Assistance (Please select Industry Code within this Grouping)
8100
Legal Services
54 Professional, Scientific, and Technical Services (Please select Industry Code within this Grouping)
8200
Educational Services
61 Educational Services (Please select Industry Code within this Grouping)
8600
Membership Organizations
813 Religious, Grantmaking, Civic, Professional, and Similar Organizations
8900
Public Accounting/Accounting/Bookkeeping Services
54 Professional, Scientific, and Technical Services (Please select Industry Code within this Grouping)
8910
Miscellaneous Services
81 Other Services (except Public Administration) (Please select Industry Code within this Grouping)
9100
Federal/National Government
92 Public Administration (Please select Industry Code within this Grouping)
9200
State/Provincial Government
92 Public Administration (Please select Industry Code within this Grouping)
9300
Local Government
92 Public Administration (Please select Industry Code within this Grouping)
9400
International Government
92 Public Administration (Please select Industry Code within this Grouping)
9900
Nonclassifiable Establishments
81 Other Services (except Public Administration) (Please select Industry Code within this Grouping)
9996
College/University Library
92 Public Administration (Please select Industry Code within this Grouping)
9997
Public Library​
92 Public Administration (Please select Industry Code within this Grouping)
3400
11 Agriculture, Forestry, Fishing and Hunting (Please select Industry Code within this Grouping)
321 Wood Product Manufacturing
322 Paper Manufacturing
332 Fabricated Metal Product Manufacturing
333 Machinery Manufacturing
335 Electrical Equipment, Appliance, and Component Manufacturing
512 Motion Picture and Sound Recording Industries
The IIA uses the North American Industrial Classification System, down to the three-digit level, for industry identification. For more information on NAICS or to view all codes
within an industry group, please visit: http://www.census.gov/eos/www/naics/index.html