519290 — Web Search Portals and All Other Information Services
Description
This industry comprises establishments primarily engaged in operating Web sites that use a search engine to generate and maintain extensive databases of Internet addresses and content in an easily searchable format (and known as Web search portals) or providing other information services not elsewhere classified. Establishments known as Web search portals often provide additional Internet services, such as email, connections to other Web sites, auctions, news, and other limited content (as defined in the official U.S. Census Bureau 2022 NAICS Manual).
Illustrative Examples
- News clipping services
- Telephone-based recorded information services
- Stock photo agencies
- Web search portals
Overview Facts
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 2711 - Newspapers: Publishing, or Publishing and Printing (via SIC1987:2711→NAICS1997:51111→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 2721 - Periodicals: Publishing, or Publishing and Printing (via SIC1987:2721→NAICS1997:51112→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 2731 - Books: Publishing, or Publishing and Printing (via SIC1987:2731→NAICS1997:51113→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 2741 - Miscellaneous Publishing (via SIC1987:2741→NAICS1997:51113→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 2771 - Greeting Cards (via SIC1987:2771→NAICS1997:511191→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 7331 - Direct Mail Advertising Services (via SIC1987:7331→NAICS1997:51114→2002:516110→2007:519130→2012:519130→2017:519130→2022:519290)
- SIC 7389 - Business Services (via SIC1987:7389→NAICS1997:514199→2002:519190→2007:519190→2012:519190→2017:519190→2022:519290)
- SIC 8999 - Services, NEC (via SIC1987:8999→NAICS1997:514199→2002:519190→2007:519190→2012:519190→2017:519190→2022:519290)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC DC10 — Data center services delivered as a service contract. Offsite data center facilities using the resources provided by 3rd parties. May be part of an Infrastructure as a Service offering.
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Frequently Asked Questions (FAQ)
Is NAICS code 519290 valid in 2022? ▾
Yes, 519290 is a valid 6-digit 2022 NAICS national industry code representing 'Web Search Portals and All Other Information Services' under Sector 51 in the official classification index.
What is the SBA size standard for NAICS code 519290? ▾
The Small Business Administration (SBA) has established a small business size standard of 1,000 employees for NAICS code 519290 (Web Search Portals and All Other Information Services), calculated based on employees.
What is the legacy SIC equivalent for NAICS 519290? ▾
According to official Census Bureau concordance tables, NAICS code 519290 (Web Search Portals and All Other Information Services) maps to legacy 1987 Standard Industrial Classification (SIC) codes: 2711 - Newspapers: Publishing, or Publishing and Printing, 2721 - Periodicals: Publishing, or Publishing and Printing, 2731 - Books: Publishing, or Publishing and Printing, 2741 - Miscellaneous Publishing, 2771 - Greeting Cards, 7331 - Direct Mail Advertising Services, 7389 - Business Services, 8999 - Services, NEC.
Related Pages & Tools
Further regulatory reference links for NAICS code 519290:
- Sector 51 Directory Hub — List of related industries in the Information sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- NAICS 519290 to SIC Crosswalk — Bidirectional mapping to legacy SIC codes (Web Search Portals and All Other Information Services).
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.