> 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/san-francisco-ca/advertising-services/ # Advertising Agencies in San Francisco, CA The bigger advertising agencies headquartered in San Francisco, 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 San Francisco, CA, the biggest by headcount range include Essence, Liveramp and Mediamint. They are mostly very small: 77% have 50 or fewer employees. ## Which advertising agencies are in San Francisco? Among the companies whose public profile lists Advertising Services as their industry and San Francisco, CA as their headquarters, the biggest by headcount range include Essence, Liveramp, Mediamint, Mightyhive and Nativex. Names link to a company profile where we have one. | Company | Employees | | --- | --- | | Essence | 1,001 to 5,000 | | Liveramp | 1,001 to 5,000 | | Mediamint | 1,001 to 5,000 | | Mightyhive | 1,001 to 5,000 | | Nativex | 501 to 1,000 | | Ryan Partnership | 501 to 1,000 | | [Ogilvy](https://enrich.chat/company/ogilvy/) | 501 to 1,000 | | Goodby Silverstein & Partners | 201 to 500 | | Volta Charging | 201 to 500 | | Aki Technologies | 201 to 500 | | Firewood | 201 to 500 | | Aaf Sf Bay Area | 201 to 500 | | Mekanism | 51 to 200 | | Pereira O'dell | 51 to 200 | | Questus | 51 to 200 | | Kkbc - B2b Marketing Agency | 51 to 200 | | Aarki | 51 to 200 | | Marketerhire | 51 to 200 | | Jampp | 51 to 200 | | Swagger | 51 to 200 | | Argonaut | 51 to 200 | | Onlinesales.Ai | 51 to 200 | | Duncan Channon | 51 to 200 | | Bbdo San Francisco | 51 to 200 | | Venables Bell And Partners | 51 to 200 | 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 San Francisco do? Advertising Services is a broad label. The most common NAICS codes among them are 541613 (38%), 541810 (17%) and 517810 (7%). **Figure: What advertising agencies in San Francisco do.** Bars for the share of counted advertising agencies with each code: 541613 38%, 541810 17%, 517810 7%, 541511 7%, 541840 5%, 541890 3%. *Share of counted advertising agencies in San Francisco by their NAICS code.* [NAICS 541613](https://enrich.chat/naics/541613/)[NAICS 541810](https://enrich.chat/naics/541810/)[NAICS 517810](https://enrich.chat/naics/517810/)[NAICS 541511](https://enrich.chat/naics/541511/)[NAICS 541840](https://enrich.chat/naics/541840/) ## How big are they? 77% of the advertising agencies counted in San Francisco 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 San Francisco.** Seven columns for the share of counted advertising agencies in San Francisco in each employee range: 11 to 50 77%, 51 to 200 20%, 201 to 500 1%, 501 to 1,000 1%, 1,001 to 5,000 1%, 5,001 to 10,000 0%, 10,001+ 0%. *Share of counted advertising agencies in San Francisco in each employee range.* ## How old are they? Most were founded in the 2010s (54%), then the 2000s (27%). **Figure: When advertising agencies in San Francisco were founded.** Eight columns for the share of counted advertising agencies in San Francisco founded in each era: Before 1960 1%, 1960s 0%, 1970s 0%, 1980s 2%, 1990s 8%, 2000s 27%, 2010s 54%, 2020s 7%. *Share of counted advertising agencies in San Francisco 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 San Francisco? 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 San Francisco, 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 San Francisco, 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 San Francisco: [Software Companies](https://enrich.chat/companies-in/san-francisco-ca/software-development/)[Technology and Internet Companies](https://enrich.chat/companies-in/san-francisco-ca/technology-information-and-internet/)[IT Services Companies](https://enrich.chat/companies-in/san-francisco-ca/it-services-and-it-consulting/)[Financial Services Companies](https://enrich.chat/companies-in/san-francisco-ca/financial-services/)[Real Estate Companies](https://enrich.chat/companies-in/san-francisco-ca/real-estate/)[Construction Companies](https://enrich.chat/companies-in/san-francisco-ca/construction/)[Hospitals and Health Care Organizations](https://enrich.chat/companies-in/san-francisco-ca/hospitals-and-health-care/)[Consulting Firms](https://enrich.chat/companies-in/san-francisco-ca/business-consulting-and-services/)[Nonprofit Organizations](https://enrich.chat/companies-in/san-francisco-ca/non-profit-organizations/)[Venture Capital and Private Equity Firms](https://enrich.chat/companies-in/san-francisco-ca/venture-capital-and-private-equity-principals/)[Design Firms](https://enrich.chat/companies-in/san-francisco-ca/design-services/)[Architecture Firms](https://enrich.chat/companies-in/san-francisco-ca/architecture-and-planning/)[Staffing and Recruiting Firms](https://enrich.chat/companies-in/san-francisco-ca/staffing-and-recruiting/)[Law Firms](https://enrich.chat/companies-in/san-francisco-ca/law-practice/)[Cybersecurity Companies](https://enrich.chat/companies-in/san-francisco-ca/computer-and-network-security/)[Biotechnology Companies](https://enrich.chat/companies-in/san-francisco-ca/biotechnology-research/)[Colleges and Universities](https://enrich.chat/companies-in/san-francisco-ca/higher-education/)[Education Organizations](https://enrich.chat/companies-in/san-francisco-ca/education-administration-programs/)[Legal Services Firms](https://enrich.chat/companies-in/san-francisco-ca/legal-services/)[All of San Francisco](https://enrich.chat/companies-in/san-francisco-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/)[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/)[Denver, CO](https://enrich.chat/companies-in/denver-co/advertising-services/) ## Frequently asked questions ### Which are the biggest advertising agencies in San Francisco? Among those counted, they include Essence, Liveramp, Mediamint, Mightyhive and Nativex, ranked by headcount range. ### How big are advertising agencies in San Francisco? 77% 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 San Francisco, CA. ## Try this prompt Find the people at advertising agencies in San Francisco ```text Use www.enrich.chat to find the agency owners, account and operations leaders at advertising agencies in San Francisco, CA, with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Software Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-ca/software-development/) - [Technology and Internet Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-ca/technology-information-and-internet/) - [IT Services Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-ca/it-services-and-it-consulting/) - [Financial Services Companies in San Francisco](https://enrich.chat/companies-in/san-francisco-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/)