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 × Consumer Goods × $1,000 - $10,000 ×Clear Filters
  • We Are the Last Name in AR/VR!

    Queppelin, known as a pioneering Metaverse company, boasts a remarkable 12-year journey with a team of experts delivering successful projects globally, especially in gaming development...

    Top Services:

    • VR/AR
    • AI Development
    • Blockchain
    • Software Development
    • eCommerce Development
    • Show more
    Location
    Long Beach, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
  • Full-Service E-commerce Development Company

    An ecosystem for B2B/ B2B2C websites on multiple platforms with robust technology and a customer-oriented mindset...

    Top Services:

    • eCommerce Development
    • Web Development
    • Software Development
    • Web Design
    • UI/UX Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    250 - 499
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    10 Projects Listed
  • Your IT Solution Authority

    Bay Networks: Your IT authority with a strong IT outsourcing focus. Specializing in MSP, we offer tailored solutions, guaranteed satisfaction, and a competitive edge...

    Top Services:

    • Managed Services
    • Cybersecurity
    • Cloud Consulting
    • IT Services
    • Show more
    Location
    Menlo Park, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $169/hr
    Minimal Budget
    $1,000 - $10,000
  • Experience Bitscape's Tech Excellence: Your Boutique OpenText ECM Partner

    Bitscape: Your boutique OpenText ECM partner, crafting software solutions with Microsoft excellence. With our agile solutions, premium support, compliance standards, and 1,500+ successful projects, we are trusted by 500+ high-profile companies across industries...

    Top Services:

    • Software Development
    • Mobile App Development
    • IoT
    • IT Services
    • Cybersecurity
    • Show more
    Location
    Santa Fe Springs, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $105/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    9 Projects Listed
  • Cerebrum Infotech

    Award WinnerRecipient of a Best Design Award for outstanding work.
    We Design Future-Ready Web & Mobile Applications

    Cerebrum Infotech is a leading mobile application, software, Android & iOS app development, DevOps, IoT, custom software development, Python Technology, Node JS Development, Dotnet Development, PHP development company (and others)...

    Top Services:

    • Product Design
    • Web Development
    • Software Development
    • Mobile App Development
    • IT Services
    • Show more
    Location
    Emeryville, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $19/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed
  • Cybersecurity-First Managed IT Services Los Angeles

    AllSafe IT offers robust Managed IT services designed to protect your business technology. With over 15 years of experience in Los Angeles, they provide responsive support, prioritize cybersecurity, and customize services to meet your specific needs...

    Top Services:

    • IT Services
    • Cybersecurity
    • Managed Services
    • Software Development
    • Cloud Consulting
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
  • A Data Innovation Company

    Predikly LLC, is a Silicon Valley-based AI-ML RPA company and a trusted Global Technology Partner for enterprises and start-ups to Deliver Actionable Business Insights using building AI-ML enabled data platform and applications...

    Top Services:

    • Software Development
    • IoT
    • VR/AR
    • AI Development
    • Mobile App Development
    • Show more
    Location
    Fremont, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Your Team for Everything in the Cloud

    AllCode offers a complete range of cloud and mobile application services. Our team of experienced engineers, architects, and developers will help you deliver with confidence...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Blockchain
    • IT Services
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $65/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Digital Development & Nearshoring

    With nine offices worldwide, we are innovators with more than 20 years of experience in digital development and more than 5 years of international Nearshoring experience. We provide the businesses that run our world with excellent custom software and IT staffing solutions...

    Top Services:

    • IT Services
    • Staff Augmentation
    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • QualiMatrix Technologies: Always believe in Quality. We are ISO certified - 9001, 27001

    One of the top Cyber Security providers, Web Development Services, App Development Services, UI/UX Services, and Software Testing Services...

    Top Services:

    • Branding
    • Web Design
    • Web Development
    • IoT
    • Software Testing
    • Show more
    Location
    Bakersfield, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $13/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Cloud Web, Mobile, AI & ML, IT Staffing, DataOps

    A Trusted digital transformation partner of global enterprises with expertise in Native Web and Mobile Applications, AI & Machine Learning services hosted on AWS and Azure Cloud, and product implementations...

    Top Services:

    • Web Development
    • Software Development
    • IoT
    • Mobile App Development
    • IT Services
    • Show more
    Location
    Sacramento, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $18/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Trust Your It. Empower Your Business.

    L3 Networks provides Managed IT Services & Support. From Cyber Security to Cloud Services, L3 Networks keeps your business secure, reliable, and future-proof since 2000...

    Top Services:

    • Managed Services
    • IT Services
    • IT Compliance Solution
    • Cloud Consulting
    • Cybersecurity
    • Show more
    Location
    Cypress, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Reliable Software Experts

    Custom Software Development, Website Design and Digital Marketing firm specializing in providing ETL, Business Process Automation, eCommerce, CMS, LMS Website Design & Development, and Custom Software Application Development...

    Top Services:

    • Web Design
    • IT Services
    • Software Development
    Location
    Orange County, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $1,000 - $10,000
  • Think Partner, Not Agency

    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
  • Award Winning Software Development Company From Irvine, California

    WeblineGlobal is an award-winning Software Development Company from Irvine, California, USA; active since 1999. We are considered as one of the leading software development organizations in the Market, started providing enterprise services and solutions, well before our counterparts...

    Top Services:

    • Software Development
    • AI Development
    • IT Services
    Location
    Orange County, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
  • Your Technology Partner

    SISGAIN Technologies is a leading software development company specializing in Remote Patient Monitoring (RPM) software, healthcare app development, and restaurant POS systems. With a focus on cutting-edge technology, SISGAIN delivers tailored digital solutions that drive growth and enhance user engagement...

    Top Services:

    • Web Development
    • Mobile App Development
    • Software Development
    • CRM Consulting
    • IT Services
    • Show more
    Location
    Ontario, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Bridging the Gap Between Business and Technology

    Rare Crew is a custom software development company with over a decade of experience. Rare Crew develops custom solutions for all kinds of business, from multinational organizations to start-ups looking to grow their business...

    Top Services:

    • Software Development
    • Mobile App Development
    • Software Testing
    • IT Services
    • Big Data Analytics
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • Bring Business Online And Grow Sales

    Sinelogix Technologies: Your Digital Success Partner Since 2012. Elevate with Irresistible Web Design, Development, and SEO. At Sinelogix we do not pull any marketing stunts on our clients, we address the clients needs directly to the point so that it can be time effective and cost effective. Sinelogix...

    Top Services:

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • SEO
    • Show more
    Location
    Newark, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • AI-Powered Community of Expert Dev Teams

    DevTeam.Space is an AI-powered community of expert dev teams. Our mission is to help more businesses build great online products...

    Top Services:

    • Software Development
    • Mobile App Development
    • AI Development
    • Web Development
    • eCommerce Development
    • Show more
    Location
    Sunnyvale, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Enabling Intelligent Enterprises

    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
  • 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
  • Turn Visibility Into Customers

    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
  • Award-Winning IT, Web & Software Services

    Jim founded Nerd Crossing with a simple mission in mind—to provide the world with a trustworthy, customer service-focused technology and web service provider. Nerd Crossing offers honest, high quality technology services to the San Francisco Bay Area and beyond...

    Top Services:

    • Web Development
    • eCommerce Development
    • Email Marketing
    • Web Design
    • WordPress Website Design
    • Show more
    Location
    El Sobrante, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $165/hr
    Minimal Budget
    $1,000 - $10,000
  • Marketing. Advertising. Technology.

    Enspyre Digital is a marketing and advertising agency in Bakersfield, California specializing in growing businesses through lead generation and brand management...

    Top Services:

    • Digital Marketing
    • SEO
    • Branding
    • Web Design
    • Mobile App Development
    • Show more
    Location
    Bakersfield, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $1,000 - $10,000
  • Crafting Websites, Creating Success!

    Invoxico Technologies is an adept company in web design and development, acknowledged for its proficiency in crafting customized digital solutions. Their expert team focuses on UI/UX design, web development, CMS development, eCommerce solutions, and mobile app development, and offers a complete range of...

    Top Services:

    • Web Design
    • eCommerce Development
    • UI/UX Design
    • Web Development
    • WordPress Website Design
    • Show more
    Location
    La Puente, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000

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

Applicants rejected
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Agencies verified
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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.