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 NameWhy Hire ThemClient RatingHourly RateTop Client or Case StudyTop Industries
Goji Labs Trusted by global brands for UX and digital products.5.0 ⭐$149Redesigned Elf on the Shelf website for immersive experience.Nonprofit, Healthcare, Fintech
Closeloop Technologies Award-winning, innovative tech solutions for complex needs.4.9 ⭐$25Resolved database outage for Brex in two hours.Fintech, Healthcare, eCommerce
Mercury Development Over 2,500 projects delivered for top global brands.4.9 ⭐$50Developed 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 ⭐$55Developed 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 ⭐$50Award-winning LMS for K-12 education market.Education, Health Care, Logistics
SDLC Corp Full-cycle digital solutions for startups to enterprises.4.9 ⭐$50IoT 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
United States × California × Energy & Mining × $10,000 - $25,000 ×Clear Filters
  • Transforming Enterprises with AI Applications

    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

    ThirdEye Data Services

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Mobile App Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Microsoft Corp
    • Walmart
    • AWS
    • SCE
    • XPERI
    • Texisle
    • Glastrosch
    • British Petroleum
    • CRC
    • Google
    Data sourced from the agency's DesignRush profile

    ThirdEye Data Reviews & Testimonials

    • Matt Singer
      Matt Singer CEO at Ecotrak
      5.0

      Big Data Analytics Review from Matt Singer

      ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.

    • Kumar Mankala
      Kumar Mankala Former Advisor of the AI/ML Program and Products at SCE
      5.0

      Software Development Review from Kumar Mankala

      ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.

    • Erhan Erdem
      Erhan Erdem Review from Google
      1.0

      Erhan Erdem's Review Sourced from Google

      I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • 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
  • 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
  • Top 1% Tech Talent with 1500+ In-house Developers

    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

    Top Remotely Services

    • Mobile App Development
    • Software Development
    • DevOps Consulting
    • IT Services
    • Web Development
    • UI/UX Design
    • Managed Services
    • AI Development
    • Blockchain
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Bit by Bit Computer Consultants
    • Dante AI
    • Eleks
    • Gun.io Incorporated
    • Andela
    • Intellectsoft
    • Clevertech
    • DevsData
    • Pangea.ai
    • Brainhub
    Data sourced from the agency's DesignRush profile
  • Transforms Digital Idea Into Reality

    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

    Appther Services

    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Product Design
    • Web Design
    • Web Development
    • Staff Augmentation
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Joyscore
    • Mybob Team
    • Wave
    • Locasto
    Data sourced from the agency's DesignRush profile

    Appther Reviews & Testimonials

    • Sharma Pk
      Sharma Pk Review from Google
      4.0

      Sharma Pk's Review Sourced from Google

      After searching a lot for a good mobile app development organization, we finally landed on Appther. They provided us with all the technical solutions and resources for our organization with minimal hassle. The products delivered by Appther feature best-in-class performance and an attractive design.The mobile application was smooth and bug-free and allowed us to connect with a big pool of clients. The website was also delivered with full precision and on time. The performance and products delivered by Appther are admirable, they showed the finest class of professionalism and expertise throughout the entire process.Pushpender KumarGeneral Manager ITA.B Sugars Ltd(Wave Group)

    • Akshay Choudhary
      Akshay Choudhary Review from Google
      5.0

      Akshay Choudhary's Review Sourced from Google

      One of the fastest-growing app development companies in Noida. The work environment is very good. They also initiate some fun activities which makes working with the company more fun and easy.

    • Akanksha Pathak
      Akanksha Pathak Review from Google
      5.0

      Akanksha Pathak's Review Sourced from Google

      It is a company that will help you boost your career. I have been working with Appther for quite a while will be going to be a part of this family for a long time. The work culture is friendly and superiors are nothing supportive. Proud to be a part of the Appther family!!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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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