Software development in California
10,589 software development listed across 439 cities in California.
Software development make up 0.8% of California listings, compared with 0.6% across all states we cover. That ranks California #1 of 5 states for this category.
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USA Business Search lists 10,589 software development in California. The most are in San Francisco (1,560), Los Angeles (656), San Diego (611).
Updated October 2026Featured · From the team behind USA Business Search
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Software development by city
San Francisco (1,560)Los Angeles (656)San Diego (611)San Jose (529)Irvine (340)Palo Alto (309)Santa Clara (283)Sunnyvale (259)Mountain View (186)Fremont (162)San Mateo (146)Sacramento (144)Santa Monica (129)Redwood City (123)Pleasanton (109)Oakland (104)Newport Beach (94)Pasadena (87)Carlsbad (84)Menlo Park (77)Torrance (75)San Ramon (75)Milpitas (72)Beverly Hills (72)Costa Mesa (71)Berkeley (71)Anaheim (71)Cupertino (68)Fresno (67)Santa Ana (66)Long Beach (63)Woodland Hills (62)Glendale (61)Campbell (58)Santa Barbara (56)Huntington Beach (54)Burbank (52)Orange (48)Riverside (47)Tustin (45)Walnut Creek (44)Roseville (43)La Jolla (43)El Segundo (43)Newark (42)Burlingame (42)Santa Cruz (39)San Rafael (39)Laguna Hills (38)Bakersfield (38)Los Gatos (37)Culver City (37)Westlake Village (36)Van Nuys (35)Sherman Oaks (35)Rancho Cucamonga (34)West Hollywood (33)Santa Rosa (33)Lake Forest (33)Los Altos (32)Aliso Viejo (32)San Carlos (31)Temecula (30)San Luis Obispo (30)Manhattan Beach (29)Encino (29)Dublin (29)Emeryville (27)Corona (27)Ventura (26)Redding (26)Folsom (26)Canoga Park (26)Rocklin (25)Simi Valley (24)Ontario (24)Chico (24)Valencia (23)Mission Viejo (23)Concord (23)Camarillo (23)Murrieta (22)Fullerton (22)Escondido (22)Sausalito (21)Redondo Beach (21)Rancho Cordova (21)Hayward (21)Garden Grove (21)Petaluma (20)Livermore (20)Goleta (20)Encinitas (20)City of Industry (20)Chatsworth (20)Venice (19)South San Francisco (19)Brea (19)Thousand Oaks (18)Solana Beach (18)Marina del Rey (18)Lafayette (18)El Dorado Hills (18)Danville (18)Walnut (17)Stockton (17)San Bruno (17)North Hollywood (17)Modesto (17)Gardena (17)Foster City (17)Alameda (17)San Leandro (16)Novato (16)Elk Grove (16)Vista (15)Studio City (15)San Clemente (15)San Bernardino (15)Pleasant Hill (15)Agoura Hills (15)Upland (14)Scotts Valley (14)Santa Clarita (14)San Marcos (14)Salinas (14)Pomona (14)Laguna Niguel (14)Hawthorne (14)Chula Vista (14)Napa (13)Mill Valley (13)El Cajon (13)Davis (13)Calabasas (13)Tarzana (12)Poway (12)Palm Desert (12)Monterey (12)Cerritos (12)West Covina (11)San Pedro (11)San Juan Capistrano (11)Oxnard (11)Newbury Park (11)Monrovia (11)Foothill Ranch (11)Covina (11)Visalia (10)Santa Fe Springs (10)Redlands (10)Rancho Santa Margarita (10)Fountain Valley (10)Diamond Bar (10)Del Mar (10)Chino (10)Arcadia (10)Altadena (10)Yorba Linda (9)Tracy (9)Hollywood (9)Fontana (9)Dana Point (9)Saratoga (8)Rolling Hills Estates (8)Paso Robles (8)Palm Springs (8)Oceanside (8)La Mesa (8)Inglewood (8)Hermosa Beach (8)Cypress (8)Carson (8)Auburn (8)Watsonville (7)Union City (7)Turlock (7)Tiburon (7)Stanford (7)Signal Hill (7)Sebastopol (7)San Dimas (7)Rohnert Park (7)Richmond (7)Orinda (7)Northridge (7)Morgan Hill (7)Lodi (7)Laguna Beach (7)Gold River (7)Fairfield (7)El Monte (7)Carmichael (7)Buena Park (7)Whittier (6)Truckee (6)Santa Maria (6)Placentia (6)Monterey Park (6)Merced (6)Lake Elsinore (6)La Habra (6)Granite Bay (6)Downey (6)Corona del Mar (6)Clovis (6)Citrus Heights (6)Chino Hills (6)Brentwood (6)Baldwin Park (6)Yuba City (5)Westminster (5)Vacaville (5)South Lake Tahoe (5)South Gate (5)Seal Beach (5)Santee (5)San Gabriel (5)San Anselmo (5)Moorpark (5)Martinez (5)Loomis (5)Hesperia (5)Healdsburg (5)Grass Valley (5)Fair Oaks (5)Daly City (5)Corte Madera (5)Belmont (5)Alhambra (5)Alamo (5)Willits (4)West Sacramento (4)West Hills (4)Spring Valley (4)San Fernando (4)Rancho Mirage (4)Perris (4)Orangevale (4)Oakdale (4)Nevada City (4)National City (4)Marina (4)Malibu (4)Lancaster (4)Ladera Ranch (4)La Palma (4)Hanford (4)Glendora (4)Gilroy (4)Colton (4)Castro Valley (4)Capitola (4)Cameron Park (4)Benicia (4)Vernon (3)Sylmar (3)Sun Valley (3)South el Monte (3)Sonoma (3)Rowland Heights (3)Reseda (3)Playa del Rey (3)Norwalk (3)Norco (3)Newhall (3)Moraga (3)Manteca (3)Lakewood (3)Laguna Woods (3)La Mirada (3)Granada Hills (3)El Cerrito (3)Cotati (3)Compton (3)Carpinteria (3)Carmel (3)Canyon Country (3)Calexico (3)Brisbane (3)Atascadero (3)Arcata (3)Albany (3)Winnetka (2)Windsor (2)Wildomar (2)Villa Park (2)Victorville (2)Temple City (2)Stevenson Ranch (2)South Pasadena (2)Soquel (2)Shasta Lake (2)Salida (2)Saint Helena (2)Rosemead (2)Rancho Santa Fe (2)Rancho Dominguez (2)Ramona (2)Placerville (2)Paramount (2)Paradise (2)Palmdale (2)Pacific Grove (2)Oroville (2)Ojai (2)Mount Shasta (2)Morro Bay (2)Moreno Valley (2)Montebello (2)Montclair (2)Millbrae (2)Manhattan Bch (2)Madera (2)Kingsburg (2)Irwindale (2)Indio (2)Hawaiian Gardens (2)Harbor City (2)Half Moon Bay (2)Fallbrook (2)Eureka (2)Eastvale (2)East Palo Alto (2)Coronado (2)Commerce (2)Clayton (2)Claremont (2)Cardiff by the Sea (2)Barstow (2)Arroyo Grande (2)Antioch (2)Alviso (2)Alta Loma (2)Yucaipa (1)Yreka (1)Woodland (1)Wilmington (1)Wheatland (1)Westchester (1)West los Angeles (1)Vernalis (1)Valley Village (1)Valley Springs (1)Valley Center (1)Vallejo (1)Ukiah (1)Twain Harte (1)Tujunga (1)Topanga (1)Toluca Lake (1)Templeton (1)Tehachapi (1)Sunland (1)Sun City (1)Suisun City (1)Stanton (1)Sonora (1)Solvang (1)Sn Bernrdno (1)Sierra Madre (1)Selma (1)Santa Ynez (1)Sanger (1)San Ysidro (1)San Pablo (1)San Marino (1)San Jacinto (1)San Andreas (1)Rosamond (1)Rodeo (1)Riverbank (1)Ripon (1)Ridgecrest (1)Reedley (1)Red Bluff (1)Rancho Palos Verdes (1)Point Richmond (1)Pismo Beach (1)Pico Rivera (1)Penn Valley (1)Pebble Beach (1)Patterson (1)Pacifica (1)Pacheco (1)Orcutt (1)Oakhurst (1)Oak Park (1)North Highlands (1)Montecito (1)Mission Hills (1)Middletown (1)Menifee (1)McKinleyville (1)McClellan (1)Mariposa (1)Lynwood (1)Lotus (1)Los Osos (1)Los Olivos (1)
Showing the 400 cities with the most software development. Use search to find any other town.
Well-documented software development in California
A sample of listings with a street address, phone number and website, one per city.
Nutanix
Docusign
Laserfiche
Palantir Technologies
Fidelity National Title
Clare Computer Solutions
Distillery Tech, Inc.
Calsense
NextGen Healthcare
Yardi Systems
Tech Firefly - Tech Mart, Santa Clara, Bay Area, California
Still comparing California agencies?
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How to choose a software company in California
- Ask who will actually do the work and how often you'll hear from them.
- Get the scope, price and timeline in writing.
- Ask for two references from clients like you.
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 software development are listed in California?
USA Business Search lists 10,589 software development across 439 California cities and towns.
Which California cities have the most software development?
San Francisco (1,560), Los Angeles (656), San Diego (611), San Jose (529), Irvine (340).
How do I choose a software company in California?
Ask who will actually do the work and how often you'll hear from them. Get the scope, price and timeline in writing.
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.