Find top IT service companies in California through DesignRush. Our platform connects you with California IT support companies trusted by brands like McDonald's and Coca-Cola. With over 1M monthly visitors and Fortune 500 companies using our rankings, you can be confident in the quality of every agency listed. Compare providers by industry expertise, client type, budget, reviews, team size, and portfolio.
Top IT Services Companies in California
Compare the leading IT services agencies in California, handpicked for their verified reviews, standout portfolios, and proven expertise, so you can confidently choose the right partner to scale your business.
| Agency Name | Why Hire Them | Client Rating | Hourly Rate | Top Client or Case Study | Top Industries |
| Goji Labs | Trusted by global brands for UX and digital products. | 5.0 ⭐ | $149 | Redesigned Elf on the Shelf website for immersive experience. | Nonprofit, Healthcare, Fintech |
| Closeloop Technologies | Award-winning, innovative tech solutions for complex needs. | 4.9 ⭐ | $25 | Resolved database outage for Brex in two hours. | Fintech, Healthcare, eCommerce |
| Mercury Development | Over 2,500 projects delivered for top global brands. | 4.9 ⭐ | $50 | Developed mobile apps for Burger King and Fitbit. | Wellness & Fitness, Healthcare, Retail |
| Suffescom Solutions Inc | Experts in mobile apps with global industry recognition. | 5.0 ⭐ | — | Built ridesharing app for GoCar Malaysia. | eCommerce, Healthcare, Fintech |
| AppMakers USA | MIT, Stanford, UCLA engineers deliver on time and budget. | 5.0 ⭐ | — | Developed mobile app for CVS Pharmacy. | Retail, Education, Sports |
| Azumo | Nearshore experts trusted by Meta, Zynga, United Health. | 4.9 ⭐ | $55 | Developed chatbot app for Facebook events. | AI, Fintech, Health Care |
| Koderspedia | Custom mobile and web solutions with rapid delivery. | 4.9 ⭐ | — | Web app for Gameloft Montreal exceeded expectations. | eCommerce, Gaming, Real Estate |
| Aristek Systems | AI and EdTech specialists with 22+ years experience. | 4.8 ⭐ | $50 | Award-winning LMS for K-12 education market. | Education, Health Care, Logistics |
| SDLC Corp | Full-cycle digital solutions for startups to enterprises. | 4.9 ⭐ | $50 | IoT supply chain project improved delivery for Freight Right. | Logistics, eCommerce, Gaming |
| Trango Tech | Holistic software and mobile solutions for global growth. | 4.7 ⭐ | — | Built wellness app for Simple Habit company. | Wellness & Fitness, eCommerce, Real Estate |
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
At Quantum IT Innovation, our team excels in AI, Big Data, RPA, and Mobile App Development for iOS, Android, and Cross-Platform. We also offer expert SEO, PPC, and Social Media services to drive your business forward in the USA, UK, Canada, Ireland, UAE, Australia, India, & across the globe...
Top Services:
- Web Development
- Social Media Marketing
- SEO
- PPC
- IT Services
- Show more
- Location
- San Clemente, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 101 Projects Listed
John Limbocker, Founder of Internet Dominators, has been cracking Search Engine codes and getting top listings for his clients since the mid 90s. He is a sought after speaker making numerous worldwide guest appearances demystifying how the Search Engines really work and how to beat them. Most recently John...
Top Services:
- IT Services
- Location
- Huntington Beach, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- Under $1,000
24hourtek provides managed IT services for SMBs and nonprofits in the San Francisco Bay Area and Denver. We focus on reliable IT operations, cybersecurity, and long-term IT strategy for organizations that want fewer disruptions and clearer direction. Our team supports day-to-day technology needs while helping...
Top Services:
- IT Services
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
We provide LA and OC metro area small businesses with Enterprise Class IT solutions, including data security, IT helpdesk & managed services, repairs and installations, and more. Get in touch to schedule your free consultation and network security audit...
Top Services:
- IT Services
- Cybersecurity
- AI Development
- Location
- Long Beach, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $75/hr
- Minimal Budget
- Under $1,000
Calance is a global IT services company delivering managed IT, Microsoft solutions, cloud services, cybersecurity, software development, and IT staffing solutions. We help organizations improve operations, modernize technology environments, and build scalable solutions through experienced teams and...
Top Services:
- Managed Services
- IT Services
- Cloud Consulting
- Cybersecurity
- Software Development
- Show more
- Location
- Glendale, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $30/hr
- Minimal Budget
- Under $1,000
San Diego-based Kyriba is a leader in global cloud-based treasury management software solutions. With proven technology services for cash management applications, Kyriba provides treasury management, cybersecurity, risk management, working capital, and other critical services...
Top Services:
- Software Development
- Cybersecurity
- IT Services
- Location
- San Diego, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $682/hr
- Minimal Budget
- Under $1,000
As a software services firm, delivering excellence is our mission. We offer development services through specialized teams segmented through our various brands. Whether that is app or website development, WordPress, Open Source, Billing, or E-commerce; we deliver what we promise. We have simplified the...
Top Services:
- Mobile App Development
- Software Development
- eCommerce Development
- IT Services
- Show more
- Location
- Carlsbad, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $15/hr
- Minimal Budget
- Under $1,000
We are an industry leading technology company in Orange County, CA specializing in managed IT services, cybersecurity & digital marketing for small and medium sized businesses. We ensure your systems are secure, running optimally and that you have help when needed...
Top Services:
- Digital Marketing
- SEO
- PPC
- Managed Services
- Cybersecurity
- Show more
- Location
- Orange County, California
- Number of Employees
- Under 49
- Minimal Budget
- Under $1,000
GoBro Web Services is a California-based web design and digital solutions agency that helps businesses strengthen their online presence through professional website design, web and app development, branding, SEO, digital marketing, and technical support services. The agency focuses on delivering modern...
Top Services:
- Digital Services
- Graphic Design
- Web Design
- Digital Marketing
- Email Marketing
- Show more
- Location
- Lake Elsinore, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $12/hr
- Minimal Budget
- Under $1,000
IT Services Companies in California by City
Related Services in California
IT Services Specializations in California
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Frequently Asked Questions
What services do IT services companies in California provide?
IT services companies in California provide technology solutions that help businesses run efficiently, stay secure, and scale operations. Their services typically include:
- Managed IT support
- Cloud services
- Cybersecurity
- IT consulting
- Software development
- Infrastructure setup
- Help desk support
How do IT services companies in California help businesses improve efficiency and security?
IT services companies in California improve efficiency and security by automating routine tasks, maintaining cloud infrastructure, and ensuring fast, reliable access to business tools. For security, they set up firewalls, encryption, and multi-factor authentication to block unauthorized access.
They also monitor networks 24/7, detect vulnerabilities early, and provide regular updates and backups to prevent downtime or data loss. This allows businesses to operate smoothly and focus on growth while staying protected from cyber risks.
How much do IT services cost in California?
IT services in California typically cost $80 to $200 per user per month, depending on service scope and company size.
- Basic packages cover help desk support, monitoring, and maintenance
- Mid-range plans include security management, cloud services, and data backups
- Higher-end packages add advanced cybersecurity, compliance support, and strategic IT consulting
Project-based work, like migrations or infrastructure upgrades, is usually billed separately at hourly rates.
What certifications should California IT support companies have?
California IT support companies should hold certifications that prove their technical skill and security standards. Common and respected ones include:
- CompTIA A+ or Network+
- Microsoft Certified Solutions Expert (MCSE)
- Cisco Certified Network Associate (CCNA)
- AWS or Google Cloud certifications
- Certified Information Systems Security Professional (CISSP)
- ITIL Certification
How do IT services companies in California ensure data protection and compliance with state and federal laws?
IT services companies in California ensure data protection and compliance by combining strict security measures with legal standards. They use encryption, firewalls, and access controls to secure sensitive information, along with regular backups and disaster recovery systems.
To meet regulations like CCPA, HIPAA, and GDPR, they conduct compliance audits, maintain data processing policies, and train staff on privacy rules. They also monitor systems for breaches, keep detailed logs for accountability, and update protocols as laws or threats evolve, ensuring businesses stay secure and compliant.
What kind of ongoing support do California IT support companies offer after implementation?
California IT support companies provide ongoing services to keep systems secure, up to date, and running smoothly after implementation. Support usually includes 24/7 monitoring, help desk assistance, and regular maintenance to prevent downtime.
They handle software updates, security patches, and system backups, and monitor networks for performance or security issues. Many also offer user training, hardware upgrades, and scalability planning so businesses can adapt as they grow.
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