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

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.

United States × California × eCommerce × $10,000 - $25,000 ×Clear Filters
  • GeekyAnts

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    AI Digital Product Engineering & Consulting Firm

    GeekyAnts is a global GeekyAnts is an AI-powered digital product engineering and consulting specializing in AI Consulting, Product Engineering, Enterprise Modernization, Digital CX, With 15+ years of experience, weve served 550+ clients like Google, SKF, WeWork, and ICICI, delivering 800+ projects...

    Top Services:

    • Mobile App Development
    • Web Development
    • Web Design
    • eCommerce Development
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    36 Projects Listed

    GeekyAnts Services

    • Mobile App Development
    • Web Development
    • Web Design
    • eCommerce Development
    • UI/UX Design
    • Software Development
    • Product Design
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Google
    • Liviit
    • Siveco Romania
    • Endlink
    • Scroll News
    • Clean Label
    • Cloud9
    • PubSquad
    • Sinam LLC
    • PopSmartKids Inc.
    Data sourced from the agency's DesignRush profile

    GeekyAnts Reviews & Testimonials

    • Mathias Willburger
      Mathias Willburger CEO at Millimetrika
      5.0★

      Web Development Review from Mathias Willburger

      The final product optimized the company's process as expected and has been well received by users. The company appreciated how well the Geeky Ants communicated, always punctual for meetings, and responsive to inquiries despite being in different timezones.

    • suresh
      suresh Review from Google
      1.0★

      suresh's Review Sourced from Google

      Candidates should carefully evaluate whether to participate in this interview process. Based on my experience, it seems the interviews are being conducted primarily for showcase purposes rather than actual hiring, leading to a significant waste of candidates' time, preparation, and effort.

    • Deekshu Gunaga
      Deekshu Gunaga Review from Google
      1.0★

      Deekshu Gunaga's Review Sourced from Google

      Very poor hiring management experience at GeekyAnts. After scheduling the interview and making candidates wait for one week, the hiring team only said the application was “on hold” and mentioned there may be an update next month. After that, there was no response or communication at all. Candidates deserve proper updates and professional handling instead of being ignored. It was worst experience

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • M TECHUB LLC

    VerifiedVerified by the DesignRush team for authenticity and credibility.
    M TECHUB LLC, Where Ideas Become Scalable Digital Products

    M TECHUB LLC Leading Mobile App Development & Staff Augmentation Company in the USA...

    Top Services:

    • Mobile App Development
    • Software Development
    • Staff Augmentation
    • AI Development
    • Web Development
    • Show more
    Location
    Mountain View, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $45/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    25 Projects Listed
  • 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
  • Ai fist design & development company

    ZAAG SYSTEMS delivers scalable web, mobile & AI solutions with sleek design, driving business growth for US startups...

    Top Services:

    • eCommerce Development
    • AI Development
    • Web Development
    • Software Development
    • Web Design
    • Show more
    Location
    Santa Clara, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    17 Projects Listed
  • AI-Native Product Engineering Company

    Developer Bazaar Technologies is a Top AI Development company building custom Mobile App & Software Development and specializing in building AI Solutions delivering mesurable outcome...

    Top Services:

    • Mobile App Development
    • eCommerce Development
    • Software Development
    • IT Services
    • Staff Augmentation
    • Show more
    Location
    Fremont, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • AI | Gen-AI | Blockchain | IT Staff Augmentation | Mobile App

    Quytech is a leader in digital innovation of global startups, SMEs, and Fortune 500 organizations. With 14+ years of experience and strong technology expertise, we deliver digital-first experiences that help businesses stay competitive.View the Quytech Reviews, Portfolio, and Services...

    Top Services:

    • Mobile App Development
    • AI Development
    • Blockchain
    • IoT
    • Software Development
    • Show more
    Location
    Walnut, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    12 Projects Listed
  • Dedicated to Leveraging the Power of Innovation!

    Clavax specializes in digital product engineering and chatbot solutions, focusing on continuous improvement and innovation to deliver customer value efficiently...

    Top Services:

    • Web Development
    • Mobile App Development
    • VR/AR
    • AI Development
    • Software Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    6 Projects Listed
  • Transforming businesses with custom AI development

    Xicom has been building software and mobile apps that moves businesses forward. Over 20+ years, we have grown into a trusted AI development company, delivering 1800+ projects to 750+ clients across 50+ countries, including startups, SMBs, and enterprises...

    Top Services:

    • AI Development
    • Mobile App Development
    • Software Development
    • Web Development
    • eCommerce Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • Top Global Mobile Development Studio

    We are Horus Studio, a Global Mobile Development Studio passionate about creating cutting-edge apps using .NET MAUI, Flutter and Uno Platform...

    Top Services:

    • Mobile App Development
    • Software Development
    • IoT
    • UI/UX Design
    • Product Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    9 Projects Listed
  • Ripening Ideas Into Apps

    RipenApps Technologies is the leading mobile app development company which is headquartered in USA and successfully running in other locating countries including India, UAE, Australia...

    Top Services:

    • Mobile App Development
    • eCommerce Development
    • Web Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Ontario, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    21 Projects Listed
  • We build what others quote 3x more for

    AISD helps mid-market and enterprise teams build AI-powered products, agents, and workflow automations. Every project is delivered by senior engineers with proven software development and AI experience...

    Top Services:

    • IT Services
    • Staff Augmentation
    • Business Consulting
    • Logistics
    • BPO
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • React to the Future With Webspaceteam.

    Choose Webspaceteam for top-notch React Native development. Our experienced team excels in web, mobile, and desktop solutions, serving clients worldwide. Let's bring your ideas to life...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • IT Services
    • Show more
    Location
    Fremont, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    5 Projects Listed
  • Custom software development firm

    Greensighter is a full-cycle software development studio. We build custom software, AI agents, and MVPs...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Wearables
    • IT Services
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed
  • Modern Design and Agile Development

    We reduce the friction of getting paid for your products and services online. With custom designs that are proven to be effective, we add value to your business using technology. Make your product easier to buy than your competitions...

    Top Services:

    • Cloud Consulting
    • IT Services
    • SEO
    • ERP Consulting
    • Cybersecurity
    • Show more
    Location
    Laguna Niguel, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $10,000 - $25,000
  • AI that backs your people. Not replaces them.

    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
  • 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
  • Building Smart Enterprise Solutions For Growing Businesses.

    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
  • Driven Companies Towards Their Digital Transformation

    We are a company specialized in software development for mobile platforms, portals and electronic commerce since 1991...

    Top Services:

    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • Software Development
    • Mobile App Development
    • Show more
    Location
    Concord, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $24/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • 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
  • One Ecosystem Every Salesforce Possibility

    BM Cloud Consultancy is ultimate solution provider of salesforce cloud services, staffing and augmentation and Salesforce Training and Development...

    Top Services:

    • CRM Consulting
    • ERP Consulting
    • Staff Augmentation
    • Cloud Consulting
    • IT Services
    • Show more
    Location
    California City, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Empowering Businesses Through Innovative Software Development

    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

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Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
129,495+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

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We monitor listings regularly; outdated agencies are removed.

Agencies verified
21

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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.