> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/naics/541820/ # NAICS code 541820: Public Relations Agencies The companies classified under NAICS 541820, where they are based, how big they are and how the code maps to SIC. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** NAICS 541820 is the code for Public Relations Agencies, in sector 54: Professional, Scientific, and Technical Services. The companies counted under it are mostly very small: 77% have 50 or fewer employees, and 44% are headquartered in the United States. ## What is NAICS 541820? NAICS 541820 is the code for Public Relations Agencies. It belongs to sector 54: Professional, Scientific, and Technical Services. NAICS, the North American Industry Classification System, is the standard U.S. government agencies use to sort businesses by what they mainly do, and each digit narrows the category. Most of the companies counted also carry SIC 8743, Public relations services, in the older SIC system (72%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 77% of the companies counted have 50 or fewer employees, and the middle one is in the 11 to 50 range. - The largest group is headquartered in the United States (44%). Within the US, New York is the biggest state (18%). - Most were founded in the 2000s (35%), then the 2010s (28%). **Figure: How NAICS 541820 is built.** The code 541820 split into its parts: sector 54, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 541820. Each digit narrows the category.* ## Which companies are classified under NAICS 541820? The biggest by headcount range include Dentons Global Advisors, Mediacom, Mktg, Weber Shandwick and Publicis. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | Dentons Global Advisors | Washington, DC | 10,001+ | | Mediacom | London, United Kingdom | 5,001 to 10,000 | | Golin | Chicago, IL | 1,001 to 5,000 | | Cision | Chicago, IL | 1,001 to 5,000 | | Adfactors Pr | Mumbai, India | 1,001 to 5,000 | | Csm Sport & Entertainment | London, United Kingdom | 1,001 to 5,000 | | Brand Momentum | Mississauga, Canada | 1,001 to 5,000 | | Sec Newgate Uk | London, United Kingdom | 1,001 to 5,000 | | Archetype | San Francisco, CA | 501 to 1,000 | | Fischerappelt | Hamburg, Germany | 501 to 1,000 | | Machbizz Marketers | Pune, India | 501 to 1,000 | | Praesidium | Milano Mi, Italy | 501 to 1,000 | | Carat Uk | London, United Kingdom | 501 to 1,000 | | Eventlink | Sterling Heights, MI | 501 to 1,000 | | Arnold Worldwide | Boston, MA | 201 to 500 | | National Public Relations | Montreal, Canada | 201 to 500 | | Insign | Paris, France | 201 to 500 | | Four Agency Worldwide | London, United Kingdom | 201 to 500 | | Matter Communications | Boston, MA | 201 to 500 | | Imre | Towson, MD | 201 to 500 | | Tbwa Neboko | Amsterdam, Netherlands | 201 to 500 | | Mynewsdesk | Stockholm, Sweden | 201 to 500 | | Gmmb | Washington, DC | 201 to 500 | | Helium Private | Karachi, Pakistan | 201 to 500 | | Kessler | Zurich, Switzerland | 201 to 500 | The table shows the 25 biggest by headcount range, with ties broken by audience size. The charts and percentages below cover every company counted for this page, not just these 25, and companies with fewer than 11 employees are not counted. Headquarters is the location on each company's public profile. ## Where are NAICS 541820 companies based? The largest groups are headquartered in the United States (44%), the United Kingdom (20%) and Canada (7%). **Figure: Where companies in NAICS 541820 are based.** Bars for the share of counted companies in NAICS 541820 headquartered in each country: United States 44%, United Kingdom 20%, Canada 7%, Germany 6%, France 5%, India 4%, Italy 4%, Switzerland 3%. *Share of counted companies in NAICS 541820 by headquarters country.* Within the United States, New York (18%), California (14%) and District of Columbia (5%) lead. **Figure: US headquarters of companies in NAICS 541820, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 541820 headquartered in each state. The largest are New York 18%, California 14%, District of Columbia 5%. *Share of counted US companies in NAICS 541820 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 541820? 77% of them have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. **Figure: Size of companies in NAICS 541820.** Seven columns for the share of counted companies in NAICS 541820 in each employee range: 11 to 50 77%, 51 to 200 17%, 201 to 500 3%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted companies in NAICS 541820 in each employee range.* ## How old are NAICS 541820 companies? Most were founded in the 2000s (35%), then the 2010s (28%). **Figure: When companies in NAICS 541820 were founded.** Eight columns for the share of counted companies in NAICS 541820 founded in each era: Before 1960 1%, 1960s 1%, 1970s 4%, 1980s 11%, 1990s 18%, 2000s 35%, 2010s 28%, 2020s 2%. *Share of counted companies in NAICS 541820 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 541820 compares - 77% of companies in NAICS 541820 have 50 or fewer employees, against 60% across all NAICS codes on this site. - New York holds 18% of the US companies here, against 6% across all NAICS codes on this site. ## How do NAICS 541820 companies describe themselves? A code is assigned by classification, and a company does not choose its own, so the label a company uses for itself can differ. The most common labels here are Public Relations and Communications Services (49%), Advertising Services (37%) and Marketing Services (7%). **Figure: How companies in NAICS 541820 describe themselves.** Bars for the share of counted companies in NAICS 541820 that give each industry on their public profile: Public Relations and Communications Services 49%, Advertising Services 37%, Marketing Services 7%, Business Consulting and Services 4%. *Share of counted companies in NAICS 541820 by the industry they list on their public profile.* ## NAICS 541820 and the SIC system NAICS replaced SIC in 1997, but the two do not line up one to one: companies filed under one NAICS code can carry several SIC codes. These are the ones seen most. | Code | Title | Share of counted | | --- | --- | --- | | SIC 8743 | Public relations services | 72% | | [SIC 7311](https://enrich.chat/naics/541810/) | Advertising agency | 13% | | SIC 8742 | Management consulting services | 5% | | SIC 7389 | Business services | 2% | ## Where NAICS codes come from NAICS is maintained by the U.S. Census Bureau with Canada and Mexico and revised every five years; the current edition is NAICS 2022. To check exactly what a code includes, search the [official NAICS index](https://www.census.gov/naics/) or read the Census Bureau's [guide to understanding NAICS](https://www.census.gov/programs-surveys/economic-census/year/2022/guidance/understanding-naics.html). Pick a code by what a company mostly does, not by who it sells to. ## How do you reach the people at NAICS 541820 companies? The people to talk to are usually agency leaders, account and operations heads. You can build the list from this code in three prompts to your AI agent. ### 1. Count them (free) Counting who matches never uses credits. ```text Use www.enrich.chat to count the companies with NAICS code 541820 (Public Relations Agencies) ``` ### 2. Find the people (5 credits per person) Name the roles you sell to. Each person returned is 5 credits, and name, title and company are included. ```text Use www.enrich.chat to find the agency leaders, account and operations heads at companies with NAICS code 541820, with their titles ``` ### 3. Get their work emails (10 credits each) An email is 10 credits only when one is found. Every email comes with a status: verified, catch-all or unknown. ```text Use www.enrich.chat to find the work emails for these people and tell me which ones are verified ``` ## More to explore Codes next to it: [NAICS 541810: Advertising Agencies](https://enrich.chat/naics/541810/)[NAICS 541840: Media Representatives](https://enrich.chat/naics/541840/)[NAICS 541860: Direct Mail Advertising](https://enrich.chat/naics/541860/) Others in sector 54: [NAICS 541512: Computer Systems Design Services](https://enrich.chat/naics/541512/)[NAICS 541511: Custom Computer Programming Services](https://enrich.chat/naics/541511/)[NAICS 541110: Offices of Lawyers](https://enrich.chat/naics/541110/)[NAICS 541613: Marketing Consulting Services](https://enrich.chat/naics/541613/)[NAICS 541310: Architectural Services](https://enrich.chat/naics/541310/)[NAICS 541219: Other Accounting Services](https://enrich.chat/naics/541219/)[NAICS 541320: Landscape Architectural Services](https://enrich.chat/naics/541320/)[NAICS 541940: Veterinary Services](https://enrich.chat/naics/541940/) ## Frequently asked questions ### What is NAICS code 541820? NAICS 541820 is the code for Public Relations Agencies, in sector 54: Professional, Scientific, and Technical Services. ### What is the SIC code for NAICS 541820 (Public Relations Agencies)? 72% of the companies counted carry SIC 8743 (Public relations services), but the two systems do not map one to one. ### Which companies are classified under NAICS 541820? The biggest by headcount range include Dentons Global Advisors, Mediacom, Mktg, Weber Shandwick and Publicis. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 541820 companies based? The largest groups are headquartered in the United States (44%), the United Kingdom (20%) and Canada (7%). ### How big are the companies in NAICS 541820? 77% have 50 or fewer employees, and the middle one is in the 11 to 50 range. Companies with fewer than 11 employees are not counted. ### Is NAICS 541820 the same as a SIC code? No. NAICS replaced SIC as the U.S. federal standard in 1997, and the two do not map one to one. The SIC code seen most among these companies is 8743. ## Try this prompt Find the people at NAICS 541820 companies ```text Use www.enrich.chat to find the agency leaders, account and operations heads at companies with NAICS code 541820, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 541810](https://enrich.chat/naics/541810/) - [NAICS 541840](https://enrich.chat/naics/541840/) - [NAICS 541860](https://enrich.chat/naics/541860/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)