> 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/541810/ # NAICS code 541810: Advertising Agencies The companies classified under NAICS 541810, 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 541810 is the code for Advertising Agencies, in sector 54: Professional, Scientific, and Technical Services. The companies counted under it are mostly very small: 71% have 50 or fewer employees, and 47% are headquartered in the United States. ## What is NAICS 541810? NAICS 541810 is the code for Advertising 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 7311, Advertising agency, in the older SIC system (93%). NAICS is a North American system, so companies outside the US, Canada and Mexico are placed in it by classification. - 71% 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 (47%). Within the US, California is the biggest state (15%). - Most were founded in the 2010s (35%), then the 2000s (33%). **Figure: How NAICS 541810 is built.** The code 541810 split into its parts: sector 54, then subsector, industry group, NAICS industry and U.S. industry. *The six digits of NAICS 541810. Each digit narrows the category.* ## Which companies are classified under NAICS 541810? The biggest by headcount range include JCDecaux, Stagwell, Salesland, Bbdo Worldwide and Kinesso. Names link to a company profile where we have one. | Company | Headquarters | Employees | | --- | --- | --- | | [JCDecaux](https://enrich.chat/company/jcdecaux/) | Neuilly-Sur-Seine, France | 10,001+ | | Essence | San Francisco, CA | 1,001 to 5,000 | | The Integer Group | Denver, CO | 1,001 to 5,000 | | Project Worldwide | Auburn Hills, MI | 1,001 to 5,000 | | Ddb Latina | Miami, FL | 1,001 to 5,000 | | Compas | Cherry Hill, NJ | 1,001 to 5,000 | | Publicis Conseil | Paris, France | 501 to 1,000 | | The Mars Agency | Southfield, MI | 501 to 1,000 | | Doner | Southfield, MI | 501 to 1,000 | | Publicis Health Media | Philadelphia, PA | 501 to 1,000 | | Publicis Canada | Montreal, Canada | 501 to 1,000 | | Mmgy Global | Overland Park, KS | 501 to 1,000 | | Index Exchange | Toronto, Canada | 501 to 1,000 | | Wunderman Thompson Uk | London, United Kingdom | 501 to 1,000 | | Ovative Group | Minneapolis, MN | 501 to 1,000 | | Winche Redes Comerciales | Barcelona, Spain | 501 to 1,000 | | Konica Minolta Marketing Services | London, United Kingdom | 501 to 1,000 | | Arena Media | Puteaux, France | 501 to 1,000 | | Stream Companies | Malvern, PA | 501 to 1,000 | | Omd Germany | Düsseldorf, Germany | 501 to 1,000 | | Adsyndicate | Mumbai, India | 501 to 1,000 | | Aroundcampus Group | Chapel Hill, NC | 501 to 1,000 | | Gureak Marketing | Donostia San Sebastian, Spain | 501 to 1,000 | | Labelium Italia | Milan, Italy | 501 to 1,000 | | Brand Impact Sweden | Stockholm, Sweden | 501 to 1,000 | 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 541810 companies based? The largest groups are headquartered in the United States (47%), the United Kingdom (9%) and France (5%). **Figure: Where companies in NAICS 541810 are based.** Bars for the share of counted companies in NAICS 541810 headquartered in each country: United States 47%, United Kingdom 9%, France 5%, Germany 5%, Canada 5%, Italy 4%, Australia 3%, Sweden 2%. *Share of counted companies in NAICS 541810 by headquarters country.* Within the United States, California (15%), New York (13%) and Florida (8%) lead. **Figure: US headquarters of companies in NAICS 541810, by state.** A tile map of the United States shaded by the share of counted US companies in NAICS 541810 headquartered in each state. The largest are California 15%, New York 13%, Florida 8%. *Share of counted US companies in NAICS 541810 by headquarters state. The three largest states are outlined.* ## How big are the companies counted for NAICS 541810? 71% 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 541810.** Seven columns for the share of counted companies in NAICS 541810 in each employee range: 11 to 50 71%, 51 to 200 22%, 201 to 500 4%, 501 to 1,000 2%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted companies in NAICS 541810 in each employee range.* ## How old are NAICS 541810 companies? Most were founded in the 2010s (35%), then the 2000s (33%). **Figure: When companies in NAICS 541810 were founded.** Eight columns for the share of counted companies in NAICS 541810 founded in each era: Before 1960 2%, 1960s 1%, 1970s 3%, 1980s 7%, 1990s 17%, 2000s 33%, 2010s 35%, 2020s 2%. *Share of counted companies in NAICS 541810 by the era they were founded in, for the ones that list a founding year.* ## How NAICS 541810 compares - 71% of companies in NAICS 541810 have 50 or fewer employees, against 60% across all NAICS codes on this site. - New York holds 13% of the US companies here, against 6% across all NAICS codes on this site. ## How do NAICS 541810 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 Advertising Services (89%), Marketing Services (7%) and Technology; Information and Internet (5%). **Figure: How companies in NAICS 541810 describe themselves.** Bars for the share of counted companies in NAICS 541810 that give each industry on their public profile: Advertising Services 89%, Marketing Services 7%, Technology; Information and Internet 5%. *Share of counted companies in NAICS 541810 by the industry they list on their public profile.* ## NAICS 541810 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 7311 | Advertising agency | 93% | ## 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 541810 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 541810 (Advertising 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 541810, 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 541820: Public Relations Agencies](https://enrich.chat/naics/541820/)[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/) NAICS 541810 by state: [California](https://enrich.chat/naics/541810/california/)[New York](https://enrich.chat/naics/541810/new-york/)[Florida](https://enrich.chat/naics/541810/florida/) ## Frequently asked questions ### What is NAICS code 541810? NAICS 541810 is the code for Advertising Agencies, in sector 54: Professional, Scientific, and Technical Services. ### What is the SIC code for NAICS 541810 (Advertising Agencies)? 93% of the companies counted carry SIC 7311 (Advertising agency), but the two systems do not map one to one. ### Which companies are classified under NAICS 541810? The biggest by headcount range include JCDecaux, Stagwell, Salesland, Bbdo Worldwide and Kinesso. The page lists 25 with links to their profiles where we have them. ### Where are NAICS 541810 companies based? The largest groups are headquartered in the United States (47%), the United Kingdom (9%) and France (5%). ### How big are the companies in NAICS 541810? 71% 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. ### How do I find a company's NAICS code? Search the official NAICS index at the U.S. Census Bureau for the code that matches what the company mostly does. Public companies in the US also list a SIC code in their SEC EDGAR profile. ## Try this prompt Find the people at NAICS 541810 companies ```text Use www.enrich.chat to find the agency leaders, account and operations heads at companies with NAICS code 541810, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [NAICS 541820](https://enrich.chat/naics/541820/) - [NAICS 541840](https://enrich.chat/naics/541840/) - [NAICS 541860](https://enrich.chat/naics/541860/) - [NAICS 541810 in California](https://enrich.chat/naics/541810/california/) - [NAICS 541810 in New York](https://enrich.chat/naics/541810/new-york/) - [NAICS 541810 in Florida](https://enrich.chat/naics/541810/florida/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)