Top 10+ IT Companies in California 2025
Last updated: 01st June 2025 | 36 Companies
Top IT Firms
The List of Top 10+ IT Companies in California 2025
2011
< $25
50 - 249
California, United States
Services
- Custom Software Development
- Artificial Intelligence
- BI & Big Data Consulting & SI
- Mobile App Development
- Web Development
- Application Testing
- AR/VR Development
- CRM Consulting and SI
- Application Management & Support
- Digital Strategy
- IT Managed Services
- ECM Consulting and SI
- Affiliate Marketing
Founded 0
Undisclosed
10 - 49
California, United States
Services
- Search Engine Optimization
- Pay Per Click
- Social Media Marketing
Founded 2006
$25 - $49 / hr
10 - 49
California, United States
Services
- Web Development
- Enterprise App Modernization
- Application Management & Support
Founded 2018
< $25 / hr
10 - 49
California, United States
Services
- Mobile App Development
- Web Development
- Enterprise App Modernization
Founded 2005
Undisclosed
2 - 9
California, United States
Services
- Custom Software Development
- AR/VR Development
- Cybersecurity
2008
$50 - $99
50 - 249
California, United States
Services
- Unified Communications Consulting & SI
- Advertising
Founded 2015
< $25 / hr
10 - 49
California, United States
Services
- Digital Strategy
- Email Marketing
- Affiliate Marketing
Founded 2014
Undisclosed
2 - 9
California, United States
Services
- Web Development
- Content Marketing
- Branding
Founded 2012
$25 - $49 / hr
2 - 9
California, United States
Services
- Custom Software Development
- Mobile App Development
- Web Development
Founded 1989
Undisclosed
2 - 9
California, United States
Services
- Custom Software Development
Founded 2012
< $25 / hr
10 - 49
California, United States
Services
- Mobile App Development
- UX/UI Design
- Mobile & App Marketing
Founded 2003
$25 - $49 / hr
50 - 249
California, United States
Services
- Custom Software Development
- Cloud Consulting & SI
- IT Managed Services
Founded 2018
$25 - $49 / hr
Freelancer
California, United States
Services
- Web Development
- Web Design
- Search Engine Optimization
Founded 2017
Undisclosed
10 - 49
California, United States
Services
- BI & Big Data Consulting & SI
- Mobile App Development
- Web Development
Founded 2012
Undisclosed
2 - 9
California, United States
Services
- Mobile App Development
- Digital Strategy
- Marketing Strategy
Founded 2010
$25 - $49 / hr
50 - 249
California, United States
Services
- Mobile App Development
- Web Development
- UX/UI Design
Founded 1998
Undisclosed
50 - 249
California, United States
Services
- Custom Software Development
- Mobile App Development
- Web Development
2017
N/A
2 - 9
California, United States
Services
- Custom Software Development
- Artificial Intelligence
- AR/VR Development
- IT Strategy Consulting
- Content Marketing
Founded 2009
Undisclosed
2 - 9
California, United States
Services
- Web Development
- Web Design
- Graphic Design
Founded 1995
Undisclosed
50 - 249
California, United States
Services
- CRM Consulting and SI
- Marketing Strategy
- Branding
Founded 2015
$25 - $49 / hr
10 - 49
California, United States
Services
- Custom Software Development
- Mobile App Development
- Web Development
Founded 2014
Undisclosed
2 - 9
California, United States
Services
- Content Marketing
- Social Media Marketing
- Logo
Founded 2011
$25 - $49 / hr
10 - 49
California, United States
Services
- Custom Software Development
- Mobile App Development
- E-Commerce Development
Founded 2020
$100 - $149 / hr
2 - 9
California, United States
Services
- Custom Software Development
- E-Commerce Development
- Conversion Optimization
Founded 2008
Undisclosed
2 - 9
California, United States
Services
- E-Commerce Development
- Web Design
- Social Media Marketing
Founded 2019
$25 - $49 / hr
10 - 49
California, United States
Services
- Custom Software Development
- Web Development
- UX/UI Design
Founded 1993
Undisclosed
1,000 - 9,999
California, United States
Services
- Custom Software Development
- Cloud Consulting & SI
- ERP Consulting and SI
2010
N/A
250 - 499
California, United States
Services
- Custom Software Development
- Artificial Intelligence
- Mobile App Development
- AR/VR Development
- Branding
- Unified Communications Consulting & SI
- Advertising
- Event Marketing & Planning
Founded 2020
$25 - $49 / hr
2 - 9
California, United States
Services
- Web Development
- Application Testing
- IT Staff Augmentation
Founded 2017
$50 - $99 / hr
10 - 49
California, United States
Services
- Mobile App Development
- IT Strategy Consulting
- IT Managed Services
Founded 2014
$25 - $49 / hr
10 - 49
California, United States
Services
- Custom Software Development
- Mobile App Development
- Web Development
Founded 2020
< $25 / hr
2 - 9
California, United States
Services
- Mobile App Development
- Web Development
- E-Commerce Development
Founded 2010
Undisclosed
10 - 49
California, United States
Services
- Custom Software Development
- Mobile App Development
- Web Development
Founded 2010
< $25 / hr
10 - 49
California, United States
Services
- Custom Software Development
- E-Commerce Development
- Digital Strategy
Founded 2004
$100 - $149 / hr
50 - 249
California, United States
Services
- Custom Software Development
- Mobile App Development
- UX/UI Design
Founded 2018
$50 - $99 / hr
50 - 249
California, United States
Services
- Custom Software Development
- Web Development
- E-Commerce Development