> 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/companies-in/santa-monica-ca/advertising-services/ # Advertising Agencies in Santa Monica, CA The bigger advertising agencies headquartered in Santa Monica, CA, with what they do, their sizes and how to reach their people. By Enrich.chat Editorial. Updated October 22, 2026. **Short answer:** Among the advertising agencies counted in Santa Monica, CA, the biggest by headcount range include Rpa, Gumgum and Hawke Media. They are mostly very small: 78% have 50 or fewer employees. ## Which advertising agencies are in Santa Monica? Among the companies whose public profile lists Advertising Services as their industry and Santa Monica, CA as their headquarters, the biggest by headcount range include Rpa, Gumgum, Hawke Media, Pathmatics By Sensor Tower and The Many. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Rpa | 501 to 1,000 | | Gumgum | 501 to 1,000 | | Hawke Media | 201 to 500 | | Pathmatics By Sensor Tower | 201 to 500 | | The Many | 51 to 200 | | Movers Shakers | 51 to 200 | | Whitehouse Post | 51 to 200 | | Tool Of North America | 51 to 200 | | Tagger By Sprout Social | 51 to 200 | | Advertise Purple | 51 to 200 | | Dba Worldwide - Daniel Brian Advertising | 51 to 200 | | Reactionpower | 51 to 200 | | Managed Digital | 51 to 200 | | Automatic Appointments | 51 to 200 | | Digital Spotlight | 51 to 200 | | Robot & Child | 51 to 200 | | Postindustria Adtech | 51 to 200 | | Chronicle X Media | 51 to 200 | | Beatsmedia | 51 to 200 | | Sabio Inc Tsxv Sbio | 51 to 200 | | Los York | 11 to 50 | | The Social Standard | 11 to 50 | | Mirrored Media | 11 to 50 | | Strausberg Group | 11 to 50 | | Someplace | 11 to 50 | 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. ## What do advertising agencies in Santa Monica do? Advertising Services is a broad label. The most common NAICS codes among them are 541613 (27%), 541810 (20%) and 339992 (7%). **Figure: What advertising agencies in Santa Monica do.** Bars for the share of counted advertising agencies with each code: 541613 27%, 541810 20%, 339992 7%, 512110 7%, 513210 7%, 541490 7%, 541611 7%. *Share of counted advertising agencies in Santa Monica by their NAICS code.* [NAICS 541613](https://enrich.chat/naics/541613/)[NAICS 541810](https://enrich.chat/naics/541810/)[NAICS 339992](https://enrich.chat/naics/339992/)[NAICS 513210](https://enrich.chat/naics/513210/) ## How big are they? 78% of the advertising agencies counted in Santa Monica 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 advertising agencies in Santa Monica.** Seven columns for the share of counted advertising agencies in Santa Monica in each employee range: 11 to 50 78%, 51 to 200 17%, 201 to 500 2%, 501 to 1,000 2%, 1,001 to 5,000 0%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted advertising agencies in Santa Monica in each employee range.* ## How old are they? Most were founded in the 2010s (53%), then the 2000s (28%). **Figure: When advertising agencies in Santa Monica were founded.** Eight columns for the share of counted advertising agencies in Santa Monica founded in each era: Before 1960 1%, 1960s 1%, 1970s 0%, 1980s 1%, 1990s 9%, 2000s 28%, 2010s 53%, 2020s 7%. *Share of counted advertising agencies in Santa Monica by the era they were founded in, for the ones that list a founding year.* ## How do you reach the people at advertising agencies in Santa Monica? The people to talk to are usually agency owners, account and operations leaders. Build the list 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 advertising agencies in Santa Monica, CA ``` ### 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 owners, account and operations leaders at advertising agencies in Santa Monica, CA, 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 Other industries in Santa Monica: [Software Companies](https://enrich.chat/companies-in/santa-monica-ca/software-development/)[Technology and Internet Companies](https://enrich.chat/companies-in/santa-monica-ca/technology-information-and-internet/)[Financial Services Companies](https://enrich.chat/companies-in/santa-monica-ca/financial-services/)[All of Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/) Advertising Agencies in other cities: [New York, NY](https://enrich.chat/companies-in/new-york-ny/advertising-services/)[Los Angeles, CA](https://enrich.chat/companies-in/los-angeles-ca/advertising-services/)[Miami, FL](https://enrich.chat/companies-in/miami-fl/advertising-services/)[Chicago, IL](https://enrich.chat/companies-in/chicago-il/advertising-services/)[Atlanta, GA](https://enrich.chat/companies-in/atlanta-ga/advertising-services/)[San Francisco, CA](https://enrich.chat/companies-in/san-francisco-ca/advertising-services/)[Austin, TX](https://enrich.chat/companies-in/austin-tx/advertising-services/)[Dallas, TX](https://enrich.chat/companies-in/dallas-tx/advertising-services/)[Houston, TX](https://enrich.chat/companies-in/houston-tx/advertising-services/)[San Diego, CA](https://enrich.chat/companies-in/san-diego-ca/advertising-services/) ## Frequently asked questions ### Which are the biggest advertising agencies in Santa Monica? Among those counted, they include Rpa, Gumgum, Hawke Media, Pathmatics By Sensor Tower and The Many, ranked by headcount range. ### How big are advertising agencies in Santa Monica? 78% of those counted 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. ### Which companies count as advertising services? Companies whose public profile lists Advertising Services as their industry and whose headquarters are in Santa Monica, CA. ## Try this prompt Find the people at advertising agencies in Santa Monica ```text Use www.enrich.chat to find the agency owners, account and operations leaders at advertising agencies in Santa Monica, CA, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Software Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/software-development/) - [Technology and Internet Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/technology-information-and-internet/) - [Financial Services Companies in Santa Monica](https://enrich.chat/companies-in/santa-monica-ca/financial-services/) - [Advertising Agencies in New York](https://enrich.chat/companies-in/new-york-ny/advertising-services/) - [Advertising Agencies in Los Angeles](https://enrich.chat/companies-in/los-angeles-ca/advertising-services/) - [Advertising Agencies in Miami](https://enrich.chat/companies-in/miami-fl/advertising-services/) - [Advertising Agencies in Chicago](https://enrich.chat/companies-in/chicago-il/advertising-services/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)