Marketing agencies in California
6,094 marketing agencies listed across 456 cities in California.
Marketing agencies make up 0.4% of California listings, compared with 0.4% across all states we cover. That ranks California #3 of 5 states for this category.
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USA Business Search lists 6,094 marketing agencies in California. The most are in Los Angeles (662), San Diego (484), San Francisco (384).
Updated October 2026Featured · From the team behind USA Business Search
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Marketing agencies by city
Los Angeles (662)San Diego (484)San Francisco (384)Irvine (210)San Jose (137)Sacramento (123)Santa Monica (92)Beverly Hills (90)Newport Beach (77)Fresno (77)Long Beach (72)Glendale (70)Burbank (68)Oakland (62)Costa Mesa (62)Carlsbad (59)West Hollywood (56)Pasadena (56)Torrance (54)Woodland Hills (49)El Segundo (46)Santa Barbara (44)Roseville (42)Riverside (42)Anaheim (41)Encinitas (39)Culver City (39)Manhattan Beach (38)Bakersfield (38)Santa Rosa (36)Pleasanton (36)Huntington Beach (36)Westlake Village (35)Orange (35)Sherman Oaks (34)Santa Ana (33)Tustin (32)Walnut Creek (31)Rancho Cucamonga (31)Santa Clara (30)Palo Alto (30)Temecula (28)Santa Clarita (28)Redding (28)Fullerton (27)Chula Vista (27)Ontario (26)Marina del Rey (25)La Jolla (25)Calabasas (25)Thousand Oaks (24)Murrieta (24)Berkeley (24)San Luis Obispo (23)Laguna Hills (23)Fremont (23)Folsom (23)San Ramon (22)Modesto (22)Camarillo (22)Agoura Hills (22)Sunnyvale (21)Stockton (21)San Clemente (21)North Hollywood (21)Encino (21)Hayward (20)Oxnard (19)Napa (19)Ventura (18)Valencia (18)Simi Valley (18)San Rafael (18)El Dorado Hills (18)Corona (18)Concord (18)San Mateo (17)San Bernardino (17)Oceanside (17)Campbell (17)Burlingame (17)Palm Desert (16)Mission Viejo (16)Chico (16)Aliso Viejo (16)Alameda (16)Upland (15)Redondo Beach (15)Monterey (15)Chatsworth (15)Venice (14)Sausalito (14)Mountain View (14)La Mesa (14)Dublin (14)Rocklin (13)Redlands (13)Livermore (13)Lake Forest (13)Gardena (13)Emeryville (13)Clovis (13)Van Nuys (12)Redwood City (12)Newark (12)Laguna Beach (12)Garden Grove (12)Elk Grove (12)Whittier (11)Vista (11)Victorville (11)Solana Beach (11)Santa Cruz (11)San Marcos (11)San Juan Capistrano (11)El Cajon (11)Tarzana (10)Santa Fe Springs (10)San Carlos (10)Salinas (10)Petaluma (10)Los Gatos (10)Inglewood (10)Gold River (10)Fountain Valley (10)Chino Hills (10)Chino (10)Alhambra (10)Rancho Cordova (9)Palmdale (9)Palm Springs (9)Northridge (9)Laguna Niguel (9)Hermosa Beach (9)Granada Hills (9)Covina (9)Poway (8)La Verne (8)Fontana (8)Downey (8)Del Mar (8)Dana Point (8)Brea (8)Arcadia (8)Rancho Santa Margarita (7)Ramona (7)Novato (7)Menlo Park (7)Los Alamitos (7)Larkspur (7)Lancaster (7)Lafayette (7)La Mirada (7)Davis (7)Buena Park (7)Yorba Linda (6)Turlock (6)Tracy (6)Studio City (6)Santa Maria (6)Monterey Park (6)Ladera Ranch (6)Fair Oaks (6)Escondido (6)Cupertino (6)Commerce (6)City of Industry (6)Carmichael (6)Aptos (6)Westminster (5)West Hills (5)West Covina (5)Walnut (5)Visalia (5)San Leandro (5)Placentia (5)Morgan Hill (5)Monrovia (5)Milpitas (5)Menifee (5)Marysville (5)Manteca (5)La Habra (5)La Crescenta (5)Hawthorne (5)Fairfield (5)El Monte (5)Diamond Bar (5)Compton (5)Castro Valley (5)Canoga Park (5)Auburn (5)Artesia (5)Vallejo (4)Stevenson Ranch (4)South Lake Tahoe (4)South el Monte (4)Sonoma (4)Signal Hill (4)Seal Beach (4)San Pedro (4)San Gabriel (4)San Dimas (4)San Bruno (4)Rosemead (4)Rolling Hills Estates (4)Rohnert Park (4)National City (4)Moreno Valley (4)Mill Valley (4)Merced (4)Marina (4)Lodi (4)La Palma (4)Huntington Park (4)Hollywood (4)Hemet (4)Foster City (4)Danville (4)Citrus Heights (4)Cerritos (4)Capistrano Beach (4)Brentwood (4)Arroyo Grande (4)Apple Valley (4)Albany (4)Yucaipa (3)Yuba City (3)Vernon (3)Vacaville (3)Tulare (3)Tujunga (3)Sebastopol (3)Santee (3)San Jacinto (3)San Anselmo (3)Rialto (3)Reseda (3)Red Bluff (3)Quincy (3)Pismo Beach (3)Panorama City (3)Newbury Park (3)Nevada City (3)Moorpark (3)Montebello (3)Mammoth Lakes (3)Malibu (3)Madera (3)Lawndale (3)Lakeside (3)Lake Elsinore (3)Lake Arrowhead (3)Laguna Woods (3)Half Moon Bay (3)Grover Beach (3)Glendora (3)Gilroy (3)Foothill Ranch (3)El Sobrante (3)Eastvale (3)Cypress (3)Coronado (3)Claremont (3)Carson (3)Carmel Valley (3)Canyon Lake (3)Benicia (3)Belmont (3)Atascadero (3)Altadena (3)Woodside (2)Windsor (2)Watsonville (2)Villa Park (2)Union City (2)Toluca Lake (2)South San Francisco (2)Soquel (2)Sonora (2)Solvang (2)Scotts Valley (2)San Fernando (2)Rio Vista (2)Richmond (2)Pleasant Hill (2)Placerville (2)Pico Rivera (2)Penryn (2)Patterson (2)Paso Robles (2)Paramount (2)Palos Verdes Estates (2)Pacific Grove (2)Ojai (2)Norwalk (2)Norco (2)Newhall (2)Montclair (2)Mecca (2)Maywood (2)Martinez (2)Los Altos (2)Livingston (2)Lincoln (2)Lakewood (2)La Canada Flintridge (2)Jurupa Valley (2)Jamul (2)Irwindale (2)Indio (2)Hollister (2)Hesperia (2)Healdsburg (2)Hanford (2)Grass Valley (2)Grand Terrace (2)Goleta (2)Discovery Bay (2)Delano (2)Daly City (2)Cotati (2)Corte Madera (2)Clayton (2)Cathedral City (2)Carmel-By-The-Sea (2)Carmel (2)Cardiff (2)Calexico (2)Brawley (2)Bloomington (2)Bishop (2)Bellflower (2)Bell Gardens (2)Barstow (2)Baldwin Park (2)Arcata (2)Antioch (2)Yucca Valley (1)Yosemite Lakes (1)Woodland Hls (1)Woodland (1)Woodbridge (1)Wildomar (1)Valley Village (1)Ukiah (1)Traver (1)Tiburon (1)Temple City (1)Sun Valley (1)Sun City (1)Suisun City (1)Stanton (1)St. Helena (1)Spring Valley (1)South Pasadena (1)Shingle Springs (1)Shafter (1)Shadow Hills (1)Saratoga (1)Sanger (1)San Martin (1)Saint Helena (1)Rowland Heights (1)Rosamond (1)Riverbank (1)Ridgecrest (1)Reedley (1)Rcho Sta Marg (1)Rancho Mirage (1)Porterville (1)Pomona (1)Pollock Pines (1)Playa Vista (1)Playa del Rey (1)Pittsburg (1)Perris (1)Paradise (1)Pacoima (1)Pacific Palisades (1)Pacheco (1)Oroville (1)Orinda (1)Oceano (1)Oakley (1)Oakhurst (1)Oak Park (1)Oak Hills (1)North Hills (1)North Highlands (1)North Fork (1)Nipomo (1)Morro Bay (1)Moraga (1)Montecito (1)Mission Hills (1)Millbrae (1)Mentone (1)McKinleyville (1)Los Osos (1)
Showing the 400 cities with the most marketing agencies. Use search to find any other town.
Well-documented marketing agencies in California
A sample of listings with a street address, phone number and website, one per city.
E-marketing Associates
Becreative360
Simple Healthcare Marketing
220 Marketing Group
Proactive Seo Solutions
Cybertegic
Mike's Signs
Canvas Worldwide
Bamboo Creative
Blue Icon Communications
Wpromote
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 a marketing agency in California
- Ask who will actually do the work and how you'll see results each month.
- Be wary of anyone who guarantees rankings. No one can promise a spot in Google.
- Make sure you own your website, ad accounts and Google Business Profile, not the agency.
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 marketing agencies are listed in California?
USA Business Search lists 6,094 marketing agencies across 456 California cities and towns.
Which California cities have the most marketing agencies?
Los Angeles (662), San Diego (484), San Francisco (384), Irvine (210), San Jose (137).
How do I choose a marketing agency in California?
Ask who will actually do the work and how you'll see results each month. Be wary of anyone who guarantees rankings. No one can promise a spot in Google.
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.