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.
Azumo
VerifiedVerified by the DesignRush team for authenticity and credibility.Build Intelligent Apps for Web, Mobile, Data, AI and Cloud
Azumo provides nearshore software development through dedicated teams and staff augmentation, covering AI, data engineering, cloud, and mobile. The IT company serves fintech, healthcare, and SaaS sectors. It’s best for mid-size companies seeking outsourced development with senior technical oversight...
Top Services:
- AI Development
- Software Development
- Staff Augmentation
- Mobile App Development
- Big Data Analytics
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAzumo Services
Data sourced from the agency's DesignRush profileDiscovery Channel Meta Zynga Jostens Assembled Brands NGL NCSoft Twitter Horoscope.com Bento
Azumo Reviews & Testimonials
Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Flyaps
VerifiedVerified by the DesignRush team for authenticity and credibility.Award WinnerRecipient of a Best Design Award for outstanding work.AI & Cloud Software Engineering
Flyaps is an AI & cloud engineering company headquartered in New York, with delivery teams in Ukraine and Poland. For 12+ years, we've helped early-stage startups scale into unicorns and modernized legacy businesses into IT leaders...
Top Services:
- Software Development
- AI Development
- IT Services
- DevOps Consulting
- Cloud Consulting
- Show more
- Location
- San Diego, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFlyaps Services
Data sourced from the agency's DesignRush profileNetSpark IP & Telecom MyersBiz Net Yaana Airbyte Nextgen Clearing JOIN Relocate Shoelace Wireless
Flyaps Reviews & Testimonials
Python Django Review from Andrew Stetsenko
We partnered with Flyaps to build the GlossaryTech Chrome Extension from scratch, including the backend for tech terminology analysis. The goal was to help recruiters, sales professionals, and other non-technical specialists in IT quickly understand the technical terms they encounter every day.The first release shipped back in 2017, long before today's AI tools were available off the shelf. Flyaps built a custom tokenization layer on top of NLTK library to resolve the ambiguity problem - distinguishing "Go" the language from "go to the shop," or "Swift" the framework from the adjective, while also correctly recognizing multi-token terms like "Ruby on Rails" or "Amazon Web Services". It was a pragmatic, precise solution that made the extension genuinely usable from day one.The outcomes have validated that early bet. GlossaryTech now holds "Featured" status in the Chrome Web Store, has passed 25,000 downloads, and consistently serves 10,000+ weekly active users and 2,000+ daily active users. For a niche professional tool, that level of organic, sustained engagement is rare - and it traces directly back to the technical foundation Flyaps put in place.Beyond the engineering, what stood out was how Flyaps engaged with the product itself. They contributed to architecture decisions, flagged edge cases early, and treated scope conversations with honesty rather than upsell. Communication was straightforward throughout, deadlines were met, and the codebase has held up well as we've extended the product over time.I'd recommend Flyaps to anyone looking for a partner who combines solid engineering with genuine product thinking. They've been central to GlossaryTech's success and continue to be a team we trust.
Software Development Review from Dariia Ryzhova
Our collaboration with Flyaps has lasted for several major projects, of which I personally worked with them on two. I am very satisfied with the level of expertise (both technical and domain), the involvement and responsibility of the teams, and the quality of delivery. We successfully brought 2 major products to life together. Flyaps teams have diverse specializations, so I had the opportunity to attract consultants from different fields: software developers, including high-level architects, DevOps, QA, and business analysts.The teams have a modern technology stack and are experienced in Agile development. This allowed for smooth integration with internal teams and processes. It is also important to note that Flyaps provides technical consulting on demand, and this was very valuable service as well. Overall, I can recommend working with Flyaps as a reliable and high-quality partner.
ТОВ ХОТНАЙТС's Review Sourced from Google
Flyaps delivered outstanding results for our e-commerce store! They built a visually stunning and high-performing website that perfectly captures our brand. Since launching, our site speed has improved by over 60%, and we've seen a noticeable increase in our conversion rate. Their team's technical expertise is top-notch, and the new admin panel they created has made managing our operations so much easier. I am happy to recommend this team of professionals.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe are located in beautiful Phoenix, Arizona, and we can meet you in person anywhere in Arizona or Southern California. We have clients coast to coast and we have a long and proud history as a technology advocate for small business. To learn more, call us at 623-845-2747 or visit datatitan.com...
Top Services:
- Mobile App Development
- Software Development
- IT Services
- Digital Services
- Digital Strategy
- Show more
- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...
Top Services:
- AI Development
- Big Data Analytics
- Software Development
- IT Services
- Staff Augmentation
- Show more
- Location
- San Jose, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 23 Projects Listed
HashStudioz Technologies is an award-winning product development company providing innovative IT solutions to clients from startups to Fortune 500 firms. With a team of over 1,000 experts, they have successfully completed 200+ projects, offering advanced technologies such as IoT, Blockchain, Cloud Computing...
Top Services:
- Software Development
- IoT
- Mobile App Development
- DevOps Consulting
- Cloud Consulting
- Show more
- Location
- Altadena, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $30/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
ITRex delivers end-to-end AI and data solutions from strategic planning to real-world deployment. The companys expertise spans LLM integration, RAG, copilots, SLMs, and autonomous AI agents, all engineered for reliability and scale...
Top Services:
- Software Development
- Mobile App Development
- Software Testing
- AI Development
- IoT
- Show more
- Location
- Aliso Viejo, California
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 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
Powered by a global team of 221,000+ diverse and passionate people across 60 countries, we deliver smarter, better ways for all our stakeholders to benefit from technology...
Top Services:
- IT Services
- Cloud Consulting
- AI Development
- Location
- Sunnyvale, California
- Number of Employees
- 1000 & Up
The 20 MSP delivers Managed IT Services that help businesses operate smarter, safer, and more efficiently across single and multi-location environments. We act as a true extension of your organization, providing proactive IT support, cybersecurity, cloud and Microsoft and Apple management, and strategic IT...
Top Services:
- Managed Services
- IT Services
- Cybersecurity
- Location
- Santa Cruz, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $1,000 - $10,000
ScaleNorth is a dynamic management and NetSuite consulting firm dedicated to helping businesses achieve growth and success through strategic transformation. With a comprehensive range of services, we specialize in business strategy, operational improvement, change management, and leadership development...
Top Services:
- IT Services
- ERP Consulting
- Cloud Consulting
- CRM Consulting
- Show more
- Location
- Santa Ana, California
- Number of Employees
- Under 49
- Portfolios Count
- 3 Projects Listed
At HyScaler, we're driven by a mission to be your trusted partner in achieving transformative business objectives. Our global vision focuses on harnessing cutting-edge technologies to craft sustainable, intelligent, and secure solutions...
Top Services:
- Mobile App Development
- Blockchain
- Software Development
- AI Development
- IoT
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 6 Projects Listed
Smartbrain.io is a platform connecting companies with the best IT specialists from all over the world...
Top Services:
- IT Services
- HR Outsourcing
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
ALFTEK offers full-service network infrastructure, system administration, network security, software development and other managed IT services. What's more, the company also integrates robust software solutions with cloud-based SaaS, PaaS and IaaS platforms for website and social & blog design...
Top Services:
- Software Development
- Cybersecurity
- IT Services
- Managed Services
- Web Design
- Show more
- Location
- Concord, California
- Number of Employees
- Under 49
- Portfolios Count
- 4 Projects Listed
Quantazone is a technology and AI solutions company helping businesses modernize operations, automate workflows, and build smarter digital systems. From ERP, CRM, HRMS, and cloud solutions to AI and marketing automation, Quantazone combines technology, strategy, and industry expertise to create scalable...
Top Services:
- ERP Consulting
- CRM Consulting
- AI Development
- Cloud Consulting
- Digital Marketing
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 3 Projects Listed
Tek Yantra is a California-based technology company helping businesses and government organizations build, modernize, and manage reliable technology systems...
Top Services:
- Cloud Consulting
- IT Services
- DevOps Consulting
- Cybersecurity
- Managed Services
- Show more
- Location
- Folsom, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $150/hr
- Portfolios Count
- 1 Project Listed
NEKLO is an international custom software development partner. Since 2008, weve specialized in building and scaling digital products for high-stakes industries, including Healthcare, Fintech, Energy, and Construction...
Top Services:
- AI Development
- Software Development
- Mobile App Development
- Product Design
- Software Testing
- Show more
- Location
- Burlingame, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 4 Projects Listed
Trianz enables digital transformations through strategic excellence, powered by knowledge and innovation in Big Data. With a portfolio reflecting 'Digital Evolution Simplified' and over 2,500 successful global partnerships, we lead in leveraging Infrastructure, Cloud, Analytics, Digital, and Security to...
Top Services:
- Big Data Analytics
- CRM Consulting
- Cloud Consulting
- IT Services
- Cybersecurity
- Show more
- Location
- Santa Clara, California
- Number of Employees
- 1000 & Up
- Portfolios Count
- 5 Projects Listed
To operationalize AI and analytics through scalable, secure, and future-ready data platforms...
Top Services:
- Big Data Analytics
- IT Services
- Location
- Fremont, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Concentrix delivers enterprise-grade AI cybersecurity solutions through managed security services, helping organizations detect threats, mitigate risk, and ensure operational resilience in real time...
Top Services:
- AI Development
- IT Services
- Location
- Newark, California
- Number of Employees
- 1000 & Up
VoIP Cloud Virtualization Corporate Email Backup Endpoint Security Web DevelopmentEnterprise IT Infrastructure & Communications EngineeringVoIP and unified communications, virtualization, cloud infrastructure, corporate email, backup and disaster recovery, DNS and endpoint security, and website...
Top Services:
- Phone Answering Services
- Call Centers
- IT Services
- Cybersecurity
- Cloud Consulting
- Show more
- Location
- San Bernardino, California
- Number of Employees
- Under 49
dotLinkers is an international IT recruitment and staffing agency headquartered in Kraków, Poland, specializing in building R&D centers, tech hubs, and high-performing engineering teams for global companies. The firm focuses on IT recruitment, tech staffing, and flexible recruitment process outsourcing (RPO)...
Top Services:
- Staff Augmentation
- IT Services
- IT Compliance Solution
- Business Consulting
- Market Research
- Show more
- Location
- San Francisco, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
InterKnowlogy provides services such as software development, Creating outstanding experiences for clients around the globe. We help our clients manage, visualize and present data in a meaningful way. They integrate across all existing data sources to provide a single, unified solution. We create platforms...
Top Services:
- Software Development
- AI Development
- IT Services
- Location
- Carlsbad, 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
Appicoders builds high-performance mobile and web applications designed to accelerate business growth. With expertise in strategy, design, and development, we create scalable digital experiences that drive engagement and deliver measurable results...
Top Services:
- Digital Services
- Branding
- eCommerce Development
- IoT
- AI Development
- Show more
- Location
- San Francisco, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
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
We don't just build software at Top Remotely we create solutions that work, scale, and impress. With a powerhouse team of 150+ in-house developers, we turn complex challenges into seamless digital experiences. Whether you need custom software, enterprise platforms, or next-gen IT solutions, we bring the Top...
Top Services:
- Mobile App Development
- Software Development
- DevOps Consulting
- IT Services
- Web Development
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $10,000 - $25,000
CentraLink provides managed IT services in Pasadena, helping businesses improve performance, security, and reliability through proactive technology management. Services include 24/7 IT support, cybersecurity, cloud solutions, network support, helpdesk services, business continuity, and strategic IT...
Top Services:
- Managed Services
- Cybersecurity
- Cloud Consulting
- IT Services
- IT Compliance Solution
- Show more
- Location
- Pasadena, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $1,000 - $10,000
Aximsoft from San Ramon California, is the partner of choice for many of the world’s leading enterprises and emerging startups, delivering technology solutions right from ground-up. Be it product design, engineering or product marketing, we’ve got it all covered! From Printing to Energy, Automobile to...
Top Services:
- VR/AR
- Software Development
- AI Development
- Mobile App Development
- IT Services
- Show more
- Location
- San Ramon, California
- Number of Employees
- 100 - 249
At SymSoft Solutions, we're experts in delivering exceptional user experiences through UX design, meeting accessibility standards, personalized data-driven solutions, and robust enterprise applications backed by in-depth business intelligence...
Top Services:
- UI/UX Design
- Web Design
- Web Development
- Cloud Consulting
- IT Services
- Show more
- Location
- Sacramento, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $1,000 - $10,000
Netwoven empowers Intelligent Enterprises by solving complex business challenges through the strategic use of Microsoft technologies. We help organizations modernize, optimize, and secure their digital workplace, business processes, and IT ecosystems...
Top Services:
- CRM Consulting
- ERP Consulting
- Big Data Analytics
- Managed Services
- Cloud Consulting
- Show more
- Location
- Pleasanton, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $130/hr
- Minimal Budget
- $1,000 - $10,000
Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI...
Top Services:
- Mobile App Development
- Software Development
- AI Development
- Design Services
- Product Design
- Show more
- Location
- Signal Hill, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $22/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 2 Projects Listed
TST Technology is an IT consulting company that offers services such as UI/UX design, web and mobile app development, software development, and SaaS product development. They have completed over 40 projects across 15+ industries...
Top Services:
- Mobile App Development
- UI/UX Design
- Web Development
- Software Development
- IT Services
- Show more
- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/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
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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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