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

We Have Researched the Best California IT Support Companies For You

12 Companies - Rankings updated: September 09, 2026

We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.

Expertise
Higher Education
Budget
Sort by: Avg Hourly Price: Low to High
United States × California × Higher Education × Sort by: Avg Hourly Price: Low to High × Clear Filters

  • Intuz

    AI & Software Development Company

    Scalable AI, MLOps & Software Development for Visionary Projects. At Intuz, we engineer intelligent, scalable, and future-ready systems. We thrive on complexity, and if your project pushes boundaries, we are the team to make it happen...

    Top Services:

    • AI Development
    • Software Development
    • IoT
    • IT Services
    • Web Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed

    Intuz Services

    • AI Development
    • Software Development
    • IoT
    • IT Services
    • Web Development
    • Mobile App Development
    • Managed Services
    • Business Consulting
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • French Florist
    • Fortress Power
    • Sapient
    • BOSCH
    • Case Path
    • Front + Center
    • Body Plus
    • 4B World
    • Badu Connect
    • AMG
    Data sourced from the agency's DesignRush profile

    Intuz Reviews & Testimonials

    • Daniel Hefter
      Daniel Hefter Founder at ViYo
      5.0 ★

      Mobile App Development Review from Daniel Hefter

      Intuz helped me to create a beautiful app that my users love to interact with! Picit went from an idea in my head to an app that is enjoyed by thousands! I look forward to continuing to grow Picit with Intuz.

    • Dr. Rajeev Vasani
      Dr. Rajeev Vasani Partner at Dr Vasani Academy E-Learning
      5.0 ★

      Mobile App Development Review from Dr. Rajeev Vasani

      Great Professional Team to work with! Intuz has developed multiple Android apps for us which have seen very good adoption among our users. Our apps involve video streaming functionalities, subscription management and other functionalities closely related to the e-learning domain. Intuz project delivery has been hassle-free and on time. Communication is clear and the post-implementation support is prompt. We plan to continue to work with Intuz for future project and ongoing enhancements.

    • Jason Horstman
      Jason Horstman Founder at Adventurocity
      5.0 ★

      Web Development Review from Jason Horstman

      Working with INTUZ was a relatively smooth and stress-free process. The team did really well in communicating and staying on track with the project. They also were very accommodating to my schedule and making all the minor changes that needed to be made in order to successfully complete the project.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.6 4.6 (3)
    5.0 5.0 (1)

  • Third Rock Techno

    Empowering Businesses to Become AI Ready and Data Driven

    Third Rock Techkno is an AI-driven product engineering company specializing in AI-powered education platforms, generative AI solutions, and scalable digital products for startups and enterprises...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Web Design
    • ERP Consulting
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    6 Projects Listed

    Third Rock Techno Services

    • AI Development
    • Software Development
    • Mobile App Development
    • Web Design
    • ERP Consulting
    • IT Compliance Solution
    • DevOps Consulting
    • Staff Augmentation
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • National Institute for Newman Studies
    • Digital TextBook
    • Course Correct
    • Auth Security
    • BlackMon
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • ByteBotix InfoTech LLP

    Your Business Cataylst

    ByteBotix InfoTech LLP is the top service provider, We focus on Industrial and web intelligence, Web and Mobile Applications and IOT based products. Whether you are a small , medium or largescale company we have got covered you all. What makes us stand out is that we deliver secured, standard and cost...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • Managed Services
    • UI/UX Design
    • Show more
    Location
    Vacaville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000

    ByteBotix InfoTech LLP Services

    • Software Development
    • Mobile App Development
    • Software Testing
    • Managed Services
    • UI/UX Design
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • SMS College
    • PTS Fitness
    • The Hirist
    • Marian Institute of Advanced Studies
    • Prime Homes
    Data sourced from the agency's DesignRush profile
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  • Argusoft

    Your Extended Engineering Team

    Argusoft is a trusted software solutions design consultancy that provides end-to-end, enterprise-class turnkey solutions. Our team of Argonauts are trained to think design at every step, architecting, designing, and coding with the business goals and objectives of our clients in mind...

    Top Services:

    • Staff Augmentation
    • Software Development
    • IT Services
    • Mobile App Development
    • UI/UX Design
    • Show more
    Location
    Newark, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000

    Argusoft Services

    • Staff Augmentation
    • Software Development
    • IT Services
    • Mobile App Development
    • UI/UX Design
    • DevOps Consulting
    • Web Design
    • Web Development
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • World Health Organization (WHO)
    • Government of Jamaica
    • DSG Consulting Inc.
    • Fresh Concepts Inc.
    • Emnicon GB
    Data sourced from the agency's DesignRush profile
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  • Femtomax Inc.

    Verified Verified by the DesignRush team for authenticity and credibility.

    Technology Solutions for You.

    Access information technology professionals with experience of working with startups to Fortune 500 companies without breaking the bank. Our services are well suited for retail, manufacturing, startups and healthcare businesses. Talk to us for a free consultation...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • IoT
    • AI Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed

    Femtomax Inc. Services

    • Web Development
    • Mobile App Development
    • Software Development
    • IoT
    • AI Development
    • IT Services
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Ceeyes Mobility Solutions Pvt. Ltd.
    • Pioneer Property Zone
    • Idaax Technologies Pvt. Ltd.
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • zen8labs

    Start something awesome together

    We are a global technology consultancy that prioritizes effective results and client success...

    Top Services:

    • Mobile App Development
    • UI/UX Design
    • IT Services
    Location
    California City, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed

    zen8labs Services

    • Mobile App Development
    • UI/UX Design
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vinmec International Hospital
    • Invitae
    • ClinikNote
    • The Yes
    • Knowable
    • Rose Villa Saigon
    • Nudge
    • VinBigData
    • BlueSky AI
    • WebProof
    Data sourced from the agency's DesignRush profile

    zen8labs Reviews & Testimonials

    • Son Le (Jason)
      Son Le (Jason) CEO at Sphinx
      5.0 ★

      Healthcare Review from Son Le (Jason)

      Zen8Labs was responsible for the complete overhaul of our products interface. Key deliverables included detailed wireframes, interactive prototypes, and the final UI design integrated into our software. They also conducted extensive user testing to validate the designs.What stood out was their user-centered approach and deep understanding of UX principles. Their ability to translate user data into actionable design improvements was particularly impressive.Zen8Labs exhibited exemplary project management. They consistently delivered milestones on time and were highly responsive to our needs, making adjustments based on feedback efficiently.

    • Van Anh Nhu
      Van Anh Nhu Quality Assurance Manager at Techcombank
      5.0 ★

      Mobile App Development Review from Van Anh Nhu

      I am happy to work with zen8labs team. So talented, professional and creative!

    • Duyen My Le
      Duyen My Le Review from Google
      5.0 ★

      Duyen My Le's Review Sourced from Google

      Zen8labs provided great support for our insurance project. We're very pleased with the experience and would gladly recommend Zen8labs to anyone looking for insurance solutions.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.5 4.5 (2)
    5.0 5.0 (21)

  • HyScaler

    Scaling New Heights

    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

    HyScaler Services

    • Mobile App Development
    • Blockchain
    • Software Development
    • AI Development
    • IoT
    • IT Services
    • Cybersecurity
    • Cloud Consulting
    • Web Development
    • Wearables
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Urban Sports Club
    • Artisan
    • Stanford University
    • Khelnow
    • Doctegrity
    • EA
    • Tune Protect
    Data sourced from the agency's DesignRush profile

    HyScaler Reviews & Testimonials

    • David Robinson
      David Robinson Review from Google
      5.0 ★

      David Robinson's Review Sourced from Google

      Can't say enough about this group! Amazing work and great people. You can really tell that the culture here is far above other shops because everyone seemingly loves what they do, and it shows in the final product. Solid work, agreeable rates, and on time delivery. 100% recommend!

    • Ernesto Berrum
      Ernesto Berrum Review from Google
      5.0 ★

      Ernesto Berrum's Review Sourced from Google

      Great group of people to work with. Very flexible and have been delivering on all of our request in a timely manner. Our platform runs on Ruby on Rails but they have Python, Node.js, React, React, and HTML experts on hand.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.7 4.7 (12)

  • Aristek Systems

    AI is easy. Systems are hard. We build systems.

    Aristek Systems empowers innovators in EdTech, HealthTech, Logistics, and Retail with transformative IT Services. With our extensive industry knowledge, achieving success in AI, data science, and enterprise software is second nature. Let’s build your next breakthrough...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Show more
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    20 Projects Listed

    Aristek Systems Services

    • Software Development
    • AI Development
    • Staff Augmentation
    • Cloud Consulting
    • Software Testing
    • Big Data Analytics
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Software& IT Industry
    • Energy Industry
    • Education Industry
    • Entertainment Industry
    • Health Care Industry
    • Transportation & Logistics Industry
    Data sourced from the agency's DesignRush profile

    Aristek Systems Reviews & Testimonials

    • Undisclosed
      Undisclosed CEO at E-Commerce Development Company
      5.0 ★

      Web Development Review from Undisclosed

      Aristek Systems developed, tested, and released a new website for an e-commerce development company. The team utilized Ruby on Rails, Elixir, Phoenix Framework, JavaScript, GraphQL, PostgreSQL, and AWS. Aristek Systems was able to deliver a fully functional software, much to the client's delight. The team was highly communicative, and internal stakeholders were particularly impressed with the vendor's professionalism and attention to detail.

    • Undisclosed
      Undisclosed Product Design Manager at Educational Digital Platform
      5.0 ★

      Web Design Review from Undisclosed

      Aristek Systems has redesigned the UI/UX of an existing educational digital platform. The team has refreshed the interface and added new features to deliver a more comprehensive experience for users. The client is satisfied with Aristek Systems' work and performance. The team delivers within the specified timeframe and manages the project seamlessly. Moreover, they stand out for their availability, problem-solving capabilities, and amazing work culture; they're easy to work with.

    • Anonymous
      Anonymous CTO at Business Consulting Company
      5.0 ★

      Software Development Review from Anonymous

      I had the privilege of working with Ruslan and his team at Aristek for the past three years. It is hard to find that level of dedication in an offshore vendor/partner but Ruslan and the Aristek team deliver it. I would highly recommend Ruslan and Aristek to anyone needing an expert level partner in EdTech and SaaS platform development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    4.8 4.8 (6)

  • Cygnis

    Building Intelligent Software Solutions

    Cygnis Media, a top-tier custom software development company and leading IT consulting service provider in the USA, is synonymous with excellence. They specialize in creating bespoke software solutions tailored to meet diverse business needs. With a keen eye for innovation and a customer-first approach...

    Top Services:

    • Web Development
    • eCommerce Development
    • Creative Services
    • Blockchain
    • Software Development
    • Show more
    Location
    Pleasanton, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000

    Cygnis Services

    • Web Development
    • eCommerce Development
    • Creative Services
    • Blockchain
    • Software Development
    • Mobile App Development
    • AI Development
    • Big Data Analytics
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • NFL
    • MIT
    • Samsung
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • CloudGeometry

    From Business Intent To Production-Ready Change

    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

    CloudGeometry Services

    • AI Development
    • Managed Services
    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • DevOps Consulting
    • Software Testing
    • IT Services
    • Digital Services
    • Product Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Eventric
    • FaceUp
    • TetraScience
    • Nanox
    • LangBuilder
    • Digital Remedy
    Data sourced from the agency's DesignRush profile

    CloudGeometry Reviews & Testimonials

    • Felix Albert
      Felix Albert Review from Google
      5.0 ★

      Felix Albert's Review Sourced from Google

      CloudGeometry is a team of highly experienced AI & Data consultants. They quickly helped me define a clear roadmap for transforming my real estate platform with AI. Great strategic insights and practical guidance !

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (2)

  • Toptal

    Leverage World-class Talent

    Toptal is a highly respected network of elite talent available when needed. Our team of problem-solvers is committed to integrity, and leading companies turn to us for critical projects. We equip organizations with the tools to compete and succeed in a rapidly-evolving business world, boasting exceptional...

    Top Services:

    • Mobile App Development
    • VR/AR
    • Blockchain
    • Software Development
    • AI Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $50,000 & Up

    Toptal Services

    • Mobile App Development
    • VR/AR
    • Blockchain
    • Software Development
    • AI Development
    • Web Development
    • eCommerce Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Artsy
    • IDEO
    • Pfizer
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • OC Security Audit

    Proactive Defense Proven Expertise

    OC Security Audit provides expert IT and cybersecurity services, including network and system administration, security assessments, penetration testing, vulnerability management, compliance audits (HIPAA, PCI-DSS, ISO 27001), cloud security, firewall configuration, disaster recovery, endpoint protection, and...

    Top Services:

    • Cybersecurity
    • Managed Services
    • IT Services
    • IT Compliance Solution
    • Cloud Consulting
    • Show more
    Location
    Irvine, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000

    OC Security Audit Services

    • Cybersecurity
    • Managed Services
    • IT Services
    • IT Compliance Solution
    • Cloud Consulting
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Hardware & Networking Industry
    • Hospitality Industry
    • Health Care Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

IT Services Companies in California by City

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Why Companies Trust DesignRush

Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding IT services companies in California. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.

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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: 

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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