Advertising agencies in California
3,003 advertising agencies listed across 371 cities in California.
Advertising agencies make up 0.2% of California listings, compared with 0.2% across all states we cover. That ranks California #1 of 5 states for this category.
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USA Business Search lists 3,003 advertising agencies in California. The most are in Los Angeles (437), San Francisco (213), San Diego (207).
Updated October 2026Featured · From the team behind USA Business Search
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- 2012 founded
- Free review, no contract
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Advertising agencies by city
Los Angeles (437)San Francisco (213)San Diego (207)Sacramento (96)Irvine (78)San Jose (68)Santa Monica (53)Culver City (43)Newport Beach (40)Pasadena (38)Carlsbad (37)Fresno (35)Bakersfield (35)Santa Ana (33)Costa Mesa (33)Long Beach (30)Burbank (30)Oakland (28)El Segundo (27)Woodland Hills (23)Orange (23)Glendale (23)Anaheim (23)Torrance (22)Riverside (22)Huntington Beach (22)Sherman Oaks (20)Santa Barbara (20)Santa Rosa (19)Beverly Hills (19)Roseville (16)Fullerton (16)Ontario (15)Corona (15)West Hollywood (14)Walnut Creek (14)Rancho Cucamonga (13)Palm Desert (13)Agoura Hills (13)Tustin (12)Novato (12)North Hollywood (11)Encino (11)Ventura (10)Temecula (10)Stockton (10)Santa Clara (10)Pleasanton (10)Modesto (10)Laguna Beach (10)Chula Vista (10)Camarillo (10)Calabasas (10)Venice (9)San Luis Obispo (9)Oceanside (9)Murrieta (9)Marina del Rey (9)Manhattan Beach (9)La Jolla (9)Fontana (9)El Cajon (9)Chino (9)Van Nuys (8)Thousand Oaks (8)Simi Valley (8)San Mateo (8)San Marcos (8)Petaluma (8)Laguna Hills (8)Hayward (8)Campbell (8)Brea (8)Studio City (7)Santa Clarita (7)San Juan Capistrano (7)San Clemente (7)Redlands (7)Monrovia (7)Lake Forest (7)Laguna Niguel (7)Inglewood (7)Gardena (7)Folsom (7)Encinitas (7)Emeryville (7)Del Mar (7)Clovis (7)Westlake Village (6)Vacaville (6)Sausalito (6)San Rafael (6)San Leandro (6)Rocklin (6)Redding (6)Palo Alto (6)Palm Springs (6)Oxnard (6)Mission Viejo (6)Fountain Valley (6)Escondido (6)Danville (6)Concord (6)Chatsworth (6)Burlingame (6)Berkeley (6)Yorba Linda (5)Whittier (5)Westminster (5)Upland (5)Sunnyvale (5)Santa Cruz (5)San Ramon (5)Redondo Beach (5)Rancho Santa Margarita (5)Northridge (5)Napa (5)Los Gatos (5)Irwindale (5)Hermosa Beach (5)Healdsburg (5)Garden Grove (5)Dana Point (5)Commerce (5)Chico (5)Walnut (4)Vista (4)Victorville (4)Valencia (4)South Pasadena (4)Solana Beach (4)San Bernardino (4)Rohnert Park (4)Redwood City (4)Rancho Mirage (4)Pleasant Hill (4)Paso Robles (4)Mountain View (4)Menlo Park (4)Los Alamitos (4)Lake Elsinore (4)Lafayette (4)Ladera Ranch (4)La Mesa (4)Glendora (4)Fremont (4)Foothill Ranch (4)Eureka (4)Elk Grove (4)El Centro (4)Covina (4)Citrus Heights (4)Aliso Viejo (4)Alameda (4)Yuba City (3)Willows (3)Visalia (3)Valley Village (3)Turlock (3)Trabuco Canyon (3)Tarzana (3)Santa Fe Springs (3)San Ysidro (3)San Gabriel (3)San Dimas (3)San Anselmo (3)Richmond (3)Rancho Cordova (3)Playa Vista (3)Playa del Rey (3)Paramount (3)Oakdale (3)Norwalk (3)Newbury Park (3)Monterey (3)Menifee (3)Indio (3)Hollywood (3)El Monte (3)Claremont (3)City of Industry (3)Canyon Lake (3)Canoga Park (3)Calexico (3)Brentwood (3)Auburn (3)Altadena (3)Alhambra (3)Yucca Valley (2)Yucaipa (2)Woodland (2)Toluca Lake (2)South San Francisco (2)South el Monte (2)Shingle Springs (2)Seal Beach (2)Scotts Valley (2)Santee (2)Salida (2)Rolling Hills Estates (2)Reseda (2)Pomona (2)Paradise (2)Palos Verdes Estates (2)Palmdale (2)Pacoima (2)Oakhurst (2)Morro Bay (2)Montrose (2)Monterey Park (2)Milpitas (2)Merced (2)Manteca (2)Lawndale (2)Lancaster (2)Lakewood (2)La Verne (2)Jurupa Valley (2)Hesperia (2)Grover Beach (2)Grass Valley (2)Granada Hills (2)Goleta (2)Gold River (2)Fortuna (2)Fair Oaks (2)Downey (2)Diamond Bar (2)Delano (2)Compton (2)Chino Hills (2)Carmichael (2)Carmel-By-The-Sea (2)Carmel (2)Capitola (2)Bell (2)Beaumont (2)Azusa (2)Atascadero (2)Aptos (2)Windsor (1)West Sacramento (1)West Hills (1)Watsonville (1)Wasco (1)Vernon (1)Vallejo (1)Ukiah (1)Truckee (1)Tracy (1)Topanga (1)Tiburon (1)Sylmar (1)Sun Valley (1)Stevinson (1)Sonora (1)Sonoma (1)Sebastopol (1)Seaside (1)Santa Paula (1)Santa Maria (1)Sanger (1)San Jacinto (1)San Bruno (1)San Bernandino (1)Salinas (1)Saint Helena (1)Rowland Heights (1)Rough and Ready (1)Ripon (1)Rio Dell (1)Ridgecrest (1)Reedley (1)Redwood Valley (1)Rancho Palos Verdes (1)Rancho Murieta (1)Poway (1)Portola Valley (1)Pismo Beach (1)Pilot Hill (1)Pico Rivera (1)Penn Valley (1)Pacifica (1)Pacific Palisades (1)Orangevale (1)Ojai (1)Oceano (1)Oakley (1)Oak View (1)North Hills (1)Norco (1)Mt Shasta (1)Mount Shasta (1)Moss Landing (1)Morgan Hill (1)Moreno Valley (1)Moraga (1)Montclair (1)Millbrae (1)Mill Valley (1)Midway City (1)McKinleyville (1)Mariposa (1)March Air Reserve Base (1)Malibu (1)Magalia (1)Loomis (1)Lodi (1)Livermore (1)Lincoln (1)Lemoore (1)Las Vegas (1)Lake Arrowhead (1)Lafyatte (1)La Mirada (1)La Crescenta (1)Kneeland (1)Kingsburg (1)Julian (1)Hollister (1)Hilmar (1)Highland (1)Hercules (1)Hemet (1)Hawthorne (1)Hacienda Heights (1)Granite Bay (1)Gilroy (1)Foster City (1)Firebaugh (1)Fawnskin (1)Fallbrook (1)Fairfield (1)Etna (1)El Dorado Hills (1)El Dorado (1)Eastvale (1)Davis (1)Cypress (1)Cupertino (1)Crestline (1)Cotati (1)Corte Madera (1)Coronado (1)Corona del Mar (1)Cerritos (1)Cathedral City (1)Castro Valley (1)Castaic (1)Carson (1)Cardiff by the Sea (1)Buena Park (1)Bonita (1)Bloomington (1)Bishop (1)Ben Lomond (1)Belmont (1)Bellflower (1)Bell Gardens (1)Barstow (1)Banning (1)Baldwin Park (1)Arroyo Grande (1)Arleta (1)Arcata (1)Arcadia (1)Antioch (1)Antelope (1)Anderson (1)Adelanto (1)Acton (1)
Well-documented advertising agencies in California
A sample of listings with a street address, phone number and website, one per city.
Mailing Pros Inc
Designory Inc
Hispano Magazine
Venables Bell & Partners Llc
Bloom Ads Global Media Group
L7 Creative
Berk Marketing Radio & Tv
Ppd Multimedia
Farinella Llc
Walton Isaacson
Promotional Design Group
Still comparing California agencies?
Run a free 60-second checkup on your listing and website first. You'll know exactly what's missing before you talk to anyone.
How to choose an advertising agency in California
- Ask how they track ads to real calls, forms and sales, not just clicks.
- Make sure your ad accounts are in your name, not the agency's.
- Ask what the management fee is and what the ad spend is, separately.
How California businesses get found in Google and AI answers
- Claim and complete your Google Business Profile, then keep hours, photos and services current.
- Use the same business name, address and phone everywhere you are listed, including directories like this one.
- Publish pages that answer the questions customers actually ask, so ChatGPT, Gemini, Perplexity and Google AI Overviews can cite you.
- Add LocalBusiness schema, clear pricing and service pages so AI assistants and booking agents can read your details.
Learn more: SEO vs. AI search optimization · Get found on Google Maps and in AI answers · How to pick an SEO company
Common questions
How many advertising agencies are listed in California?
USA Business Search lists 3,003 advertising agencies across 371 California cities and towns.
Which California cities have the most advertising agencies?
Los Angeles (437), San Francisco (213), San Diego (207), Sacramento (96), Irvine (78).
How do I choose an advertising agency in California?
Ask how they track ads to real calls, forms and sales, not just clicks. Make sure your ad accounts are in your name, not the agency's.
How do I add or fix a listing?
Listings are free. Use Add your business, or the Claim or fix link on any listing.
What should I ask a California marketing agency before I hire them?
Ask who will actually do the work, how they track calls and forms, and what happens to your accounts if you leave. Eye To Ad Media offers a free review of how your business shows up in Google and AI answers.
What is AI search optimization (AIO or GEO)?
It is the work of making your business easy for AI assistants like ChatGPT, Gemini and Google AI Overviews to understand, trust and recommend: consistent listings, structured data, and pages that answer real customer questions. Read SEO vs. AI search optimization.