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.
Acquaint Softtech is an Official Laravel Partner with 15+ years of experience in software development. We specialize in Laravel solutions and excel in IT staff augmentation, remote development teams and outsourcing to deliver scalable, best results...
Top Services:
- Staff Augmentation
- IT Services
- Web Development
- eCommerce Development
- Mobile App Development
- Show more
- Location
- Highland, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
NavEase uses AI driven insights to create inclusive, future ready digital experiences, enhancing accessibility, security, and scalability. Leveraging AI-driven insights and advanced technologies, we empower businesses to create impactful, inclusive, and future-ready digital experiences. Whether it's enhancing...
Top Services:
- Digital Marketing
- Cybersecurity
- IT Services
- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $99/hr
Staydify Growth Systems is a division of the UK-based HiringBooster Group, focused on driving technology-enabled business growth. The company specializes in delivering advanced custom software development and precision IT staffing services, leveraging its global footprint across the UK, USA, India, and other...
Top Services:
- Software Development
- IT Services
- Web Design
- Web Development
- Mobile App Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $10/hr
- Minimal Budget
- Under $1,000
Silicon Prime AI is a Stanford-rooted enterprise AI lab building Agentic AI, Generative AI, and custom software since 2011. Our patent-pending Aegis AI methodology helps enterprises ship to production twice a week with zero critical defects proven at BJ's Restaurants across 200+ locations. We don't bolt AI...
Top Services:
- Software Development
- IT Services
- DevOps Consulting
- Web Design
- UI/UX Design
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $10,000 - $25,000
Megamax Services helps businesses manage IT, modernize legacy systems like IBM iSeries/AS400, move to the cloud, build custom software, and strengthen cybersecurity. With 300+ IT professionals across 12 global delivery centers, it also offers DevOps, data & AI services, and Kasturi HRMS...
Top Services:
- Cybersecurity
- IT Services
- Web Development
- Digital Marketing
- Software Development
- Show more
- Location
- San Jose, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $48/hr
- Minimal Budget
- $1,000 - $10,000
Many worldwide clients are now using "EpicBliss" benchmark solutions, We're capable to drive you to the right tech-track for your laudable idea. So, let's scrutinize your business need, mold it and establish it with the latest and most suitable technologies...
Top Services:
- IT Services
- Cloud Consulting
- Mobile App Development
- Software Development
- Software Testing
- Show more
- Location
- Ontario, California
- Number of Employees
- Under 49
CloudGeometry is a Silicon Valley engineering firm that builds and runs cloud-native platforms, data pipelines, and AI systems for SaaS and enterprise teams. Its AI-MSL offering pairs an AI-driven delivery platform with a managed service: AI agents carry build and maintenance work across the software...
Top Services:
- AI Development
- Managed Services
- Software Development
- Mobile App Development
- Cloud Consulting
- Show more
- Location
- Sunnyvale, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $10,000 - $25,000
Tech.us is an AI software solutions company that provides AI development, mobile applications, cloud consulting, and IT services. We focus on creating secure, scalable, and innovative technologies that support businesses in their digital journey...
Top Services:
- AI Development
- Mobile App Development
- IT Services
- Software Testing
- Cybersecurity
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Minimal Budget
- $10,000 - $25,000
Hajana Technologies is an AI & workflow automation partner helping U.S. businesses eliminate manual admin tasks. Engineered by enterprise systems architects, we build custom autonomous AI agents, multi-agent workflows, and RAG systems to scale your operations without expanding headcount...
Top Services:
- AI Development
- Software Development
- IT Services
- CRM Consulting
- ERP Consulting
- Show more
- Location
- Fresno, California
- Number of Employees
- Under 49
ITColark Consulting delivers customized enterprise software and IT solutions that help businesses streamline operations, scale efficiently, and achieve digital growth...
Top Services:
- Mobile App Development
- DevOps Consulting
- IT Services
- eCommerce Development
- AI Development
- Show more
- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $11/hr
- Minimal Budget
- $10,000 - $25,000
Zazmic has been at the forefront of AI/ML and software development innovation for over a decade. Today, we continue to lead the charge as the Google Cloud Premier partner and a top provider of Gen AI, cybersecurity, and cloud services. Design, architecture, top-tier engineering we have it all...
Top Services:
- AI Development
- Mobile App Development
- UI/UX Design
- Cloud Consulting
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
MARFI Systems is a SOC 2 Type II certified managed IT, cybersecurity and compliance provider in Santa Monica serving startups, healthcare, fintech and defense contractors across Los Angeles and Southern California. Launchpad bundles proactive IT, 24/7 SOC, endpoint and email security, identity, backup and...
Top Services:
- Managed Services
- Cybersecurity
- IT Compliance Solution
- IT Services
- Cloud Consulting
- Show more
- Location
- Santa Monica, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $175/hr
- Minimal Budget
- $1,000 - $10,000
Esclatech is a leading software development and digital transformation company specializing in Mobile App Development, Web App Development, SaaS Solutions, and AI Automation Services...
Top Services:
- Digital Services
- IT Services
- Mobile App Development
- Software Development
- CRM Consulting
- Show more
- Location
- California City, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
Indium is an AI-driven digital engineering company that helps enterprises build, scale, and innovate with cutting-edge technology. We specialize in custom solutions, ensuring every engagement is tailored to business needs with a relentless customer-first approach...
Top Services:
- Big Data Analytics
- AI Development
- Mobile App Development
- Cloud Consulting
- IT Services
- Show more
- Location
- Cupertino, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
We're a software development agency that builds products that scale. Our engineering-first culture and product-minded approach have powered success stories like Calendlythe scheduling platform that revolutionized meetings for millions...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- IT Services
- DevOps Consulting
- Show more
- Location
- West Hollywood, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $50,000 & Up
EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders...
Top Services:
- Business Consulting
- HR Outsourcing
- Accounting
- Cybersecurity
- IT Services
- Show more
- Location
- Sacramento, California
- Number of Employees
- 1000 & Up
NG Logic is a San Mateo, California-based software development agency specializing in custom web and mobile applications, DevOps, quality assurance, platform modernization, and staff augmentation. With over 20 years of experience, NG Logic partners with clients to deliver scalable, cloud-centric solutions...
Top Services:
- Blockchain
- Software Development
- AI Development
- Staff Augmentation
- IT Services
- Show more
- Location
- San Mateo, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $25,000 - $50,000
Equipped with expert, full-stack, agile teams, we help agencies, corporations and start-ups innovate and scale. And we do it on your terms, be it on the front lines or as a behind-the-scenes partner...
Top Services:
- Mobile App Development
- Blockchain
- Software Development
- AI Development
- Web Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
ZYMR offers cutting-edge cloud-based services for Healthcare, HIPAA, Biotech, etc... We are a leading cloud technology services provider in Silicon Valley, USA. Get in touch for cloud-based solutions today...
Top Services:
- AI Development
- IoT
- Mobile App Development
- Software Development
- Blockchain
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $10,000 - $25,000
National Payment Processing (NPP) is a U.S.-based merchant services provider that helps businesses accept payments securely while reducing processing costs through innovative payment solutions. Since 1990, NPP has supported businesses across retail, restaurants, eCommerce, healthcare, field services...
Top Services:
- Digital Services
- Digital Strategy
- eCommerce Development
- Web Development
- AI Development
- Show more
- Location
- Stockton, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $500/hr
- Minimal Budget
- $1,000 - $10,000
LoudFace is a full-stack organic growth agency for B2B SaaS and fintech, with AI visibility measured per engine. We run GEO, SEO, AEO, content, and conversion to get companies discovered across Google and AI search. We implement across your stack when the program needs it...
Top Services:
- Branding
- Design Services
- Digital Strategy
- Web Development
- AEO
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Webllisto is a prominent IT Consulting and Engineering firm offering clients the finest Web and Software development services for their business. Our exceptional Web services are dedicated to Enterprises, ISVs, Startups, and digital agencies...
Top Services:
- Software Development
- VR/AR
- AI Development
- IoT
- Mobile App Development
- Show more
- Location
- San Jose, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
OutsourcingDev is your expert partner in outsourcing services. Founded by a seasoned data Engineer, we offer customized and high-quality solutions. Our comprehensive services cover the entire development lifecycle, and we specialize in assembling dedicated development teams for seamless collaboration...
Top Services:
- Software Development
- Mobile App Development
- Web Design
- Web Development
- UI/UX Design
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
We’re a solution-based technology company with a focus in cloud transformation, software development and big data analytics services based out of California. We combine the love for engineering and big data to scale projects and help businesses grow. Our passion for technology drives results-based solutions...
Top Services:
- Software Development
- Mobile App Development
- AI Development
- Cybersecurity
- Big Data Analytics
- Show more
- Location
- Pleasanton, California
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
Source Code Lab is the Best Custom Game Development Company in Usa/India.Our game developers build remarkable games compatible with the most popular platforms to attract the attention of a wider audience...
Top Services:
- Graphic Design
- IT Services
- VR/AR
- Mobile App Development
- Wearables
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...
Top Services:
- AI Development
- Software Development
- Web Development
- Mobile App Development
- Blockchain
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that...
Top Services:
- DevOps Consulting
- IT Services
- Mobile App Development
- IoT
- Digital Services
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $25,000 - $50,000
TechnoBrains Business Solutions is a global software development and AI solutions company founded in 2009, delivering custom web, mobile, AI, and enterprise software solutions for startups, SMEs, and established enterprises worldwide. Headquartered in Ahmedabad, India, with a presence in the United States...
Top Services:
- AI Development
- Mobile App Development
- Software Development
- eCommerce Development
- Web Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 50 - 99
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 1 Project Listed
A full-service IT company with ISO 9001:2015 certification, Cybrain Software Solutions provides top-notch software solutions to brands all over the world...
Top Services:
- Software Development
- Software Testing
- Mobile App Development
- IT Services
- ERP Consulting
- Show more
- Location
- Ventura, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $1,000 - $10,000
IT Services Companies in California by City
Related Services in California
IT Services Specializations in California
Popular Services
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
4.8
4.8Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
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.
Latest Trends Related to IT Services
