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

8 Companies - Rankings updated: September 09, 2026

Every agency featured on DesignRush is vetted for expertise and client satisfaction to support your decision-making. Some listings may be sponsored.

Expertise
Media & Communications
Under $1,000
Sort by: Sponsored
United States × California × Media & Communications × Under $1,000 × Clear Filters

  • Quantum IT Innovation

    Empowering Your Digital Future with Innovative IT Solutions

    At Quantum IT Innovation, our team excels in AI, Big Data, RPA, and Mobile App Development for iOS, Android, and Cross-Platform. We also offer expert SEO, PPC, and Social Media services to drive your business forward in the USA, UK, Canada, Ireland, UAE, Australia, India, & across the globe...

    Top Services:

    • Web Development
    • Social Media Marketing
    • SEO
    • PPC
    • IT Services
    • Show more
    Location
    San Clemente, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $10/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    101 Projects Listed

    Quantum IT Innovation Services

    • Web Development
    • Social Media Marketing
    • SEO
    • PPC
    • IT Services
    • Mobile App Development
    • AI Development
    • Digital Marketing
    • Software Development
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • David
    • Karmel
    • Jevon
    • Luke
    • Rajitha
    • Alfred
    • Gilbert
    • Erik
    • Christopher Samdeo
    • Mehernaz Emadi
    Data sourced from the agency's DesignRush profile

    Quantum IT Innovation Reviews & Testimonials

    • Lorena Iaut
      Lorena Iaut Obstetrician and Gynecologist at Lorena Laut
      5.0 ★

      Digital Marketing Review from Lorena Iaut

      We have had a great experience working with Quantum IT Innovation for our digital marketing needs. Their team is professional, responsive, and truly understands how to position a healthcare brand effectively online. We've seen noticeable improvement in our digital presence and engagement. Highly recommend their services to anyone looking for reliable and result-driven marketing support.

    • Brigitte Brünjes
      Brigitte Brünjes Owner at Hogasearch
      5.0 ★

      Digital Marketing Review from Brigitte Brünjes

      Quantum IT Innovation played a key role in strengthening HOGASEARCHs digital presence through strategic digital marketing and SEO services. Their team delivered creative content, consistent planning, and visible growth in engagement and search rankings. Highly professional and results-oriented.

    • SAM NAJIBI
      SAM NAJIBI CEO at MBSS Security Services
      5.0 ★

      Digital Marketing Review from SAM NAJIBI

      Quantum IT Innovation has been a game-changer for MBSS Security. Their digital marketing strategies helped us boost our local visibility, generate leads, and build a strong online presence. Highly professional and results-driven team truly appreciate their support!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.9 4.9 (9)
    4.1 4.1 (113)

  • Internet Dominators

    Marketing that Works Hard, So You Don't have To!

    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

    Internet Dominators Services

    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dean Cain
    • GKIC
    • WEB 2.0 Expo
    • UnGagged
    • Pepperdine
    • SEO Rockstars
    • Shell
    • US Divers
    • Dupont
    Data sourced from the agency's DesignRush profile

    Internet Dominators Reviews & Testimonials

    • Gina St George
      Gina St George Review from Google
      5.0 ★

      Gina St George's Review Sourced from Google

      John and the Internet Dominators team are excellent! They really care about your success and have great programs to equip any entrepreneur with what they need to make stuff happen online. I am grateful to have met John, to be able to learn from him, and to be advised by him. At this point in his life, John could be doing anything he wants, but he chooses to be helpful to others. Great guy! Great business!

    • Jim Kaspari
      Jim Kaspari Review from Google
      5.0 ★

      Jim Kaspari's Review Sourced from Google

      John has been instrumental in taking my online marketing education and abilities to the next level. His customer service is amazing, his team exceptional and I've seen results fast. I Highly recommend Internet Dominators!

    • Barbara Cunningham
      Barbara Cunningham Review from Google
      5.0 ★

      Barbara Cunningham's Review Sourced from Google

      John's ACT program is the complete plan for a business owner to Identify their ideal client, create their marketing message, build out their landing pages and then attract the traffic that is dying to buy their product. The customer desires the product because the message is so on target, so no selling involved! What could be BETTER than that! Along with the online classes John teaches live in small groups and then has a support Q & A call once a week.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (12)

  • 24hourtek

    The Forward Thinking IT Company

    24hourtek provides managed IT services for SMBs and nonprofits in the San Francisco Bay Area and Denver. We focus on reliable IT operations, cybersecurity, and long-term IT strategy for organizations that want fewer disruptions and clearer direction. Our team supports day-to-day technology needs while helping...

    Top Services:

    • IT Services
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000

    24hourtek Services

    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Health Care Industry
    • Nonprofit Industry
    • eCommerce Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • MZ DATA

    Cost-Effective Enterprise Class IT Solutions for Small Business Growth

    We provide LA and OC metro area small businesses with Enterprise Class IT solutions, including data security, IT helpdesk & managed services, repairs and installations, and more. Get in touch to schedule your free consultation and network security audit...

    Top Services:

    • IT Services
    • Cybersecurity
    • AI Development
    Location
    Long Beach, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $75/hr
    Minimal Budget
    Under $1,000

    MZ DATA Services

    • IT Services
    • Cybersecurity
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Finance Industry
    • Banking Industry
    • Publishing Industry
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Kyriba

    Global Cloud-Based Treasury Management Software Solutions

    San Diego-based Kyriba is a leader in global cloud-based treasury management software solutions. With proven technology services for cash management applications, Kyriba provides treasury management, cybersecurity, risk management, working capital, and other critical services...

    Top Services:

    • Software Development
    • Cybersecurity
    • IT Services
    Location
    San Diego, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $682/hr
    Minimal Budget
    Under $1,000

    Kyriba Services

    • Software Development
    • Cybersecurity
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • ORACLE
    • HSBC
    • Accenture
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (8)

  • NEXTWERK

    Software Solutions Simplified

    As a software services firm, delivering excellence is our mission. We offer development services through specialized teams segmented through our various brands. ​Whether that is app or website development, WordPress, Open Source, Billing, or E-commerce; we​ deliver what we promise. We have simplified the...

    Top Services:

    • Software Development
    • Mobile App Development
    • IT Services
    • eCommerce Development
    • Show more
    Location
    Carlsbad, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000

    NEXTWERK Services

    • Software Development
    • Mobile App Development
    • IT Services
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • The New York Times
    • Forward Control Software
    • Project Marker
    • Solstice Strategy Partners, LLC
    • OrderLogix
    • Office Gemini
    • Niche Academy, LLC
    • Lyra Associates, LLC
    • Lumentum
    • Jovian Digital, LLC
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • IT Tropolis

    A Leading Technology Company

    We are an industry leading technology company in Orange County, CA specializing in managed IT services, cybersecurity & digital marketing for small and medium sized businesses. We ensure your systems are secure, running optimally and that you have help when needed...

    Top Services:

    • Digital Marketing
    • SEO
    • PPC
    • Managed Services
    • Cybersecurity
    • Show more
    Location
    Orange County, California
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000

    IT Tropolis Services

    • Digital Marketing
    • SEO
    • PPC
    • Managed Services
    • Cybersecurity
    • IT Services
    • Software Development
    • Web Design
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Monster Moving and Storage
    • LA Grain
    • Stuff It Storage
    • Transform Conflicts
    • Harper & Harper CPA
    • Charley's Restaurant & Saloon
    • SMX Power
    • Marketology
    • Neurodiagnostic Center
    • Better Choice Financial
    Data sourced from the agency's DesignRush profile

    IT Tropolis Reviews & Testimonials

    • Seacliff Mechanical
      Seacliff Mechanical Review from Google
      5.0 ★

      Seacliff Mechanical's Review Sourced from Google

      I highly recommend IT Tropolis Support and Managed Services for all of your business technology needs. Bob is friendly, prompt, knowledgeable and reliable. He helps us update and maintain our company emails, new hardware and troubleshooting as well. He helped up solve a complex office phone issue when Verizon and Spectrum could not.

    • Byron Bame
      Byron Bame Review from Google
      5.0 ★

      Byron Bame's Review Sourced from Google

      Bob is the best! I live in Fountain Valley and I do my best to support local businesses. Bob is quick to respond, professional, and friendly. I am thrilled to have found Bob to handle my business' IT needs, and have full confidence that I am in good hands.

    • Randy White
      Randy White Review from Google
      5.0 ★

      Randy White's Review Sourced from Google

      Bob did an excellent job setting up our new office and getting us going! He came to our rescue right away, was very professional and knows what he's doing! We had a great exp experience with IT Tropolis and would highly recommend them! Thank you, Bob!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    5.0 5.0 (12)

  • GoBro PH

    We Create With Your Needs And Preferences In Mind.

    GoBro Web Services is a California-based web design and digital solutions agency that helps businesses strengthen their online presence through professional website design, web and app development, branding, SEO, digital marketing, and technical support services. The agency focuses on delivering modern...

    Top Services:

    • Digital Services
    • Graphic Design
    • Web Design
    • Digital Marketing
    • Email Marketing
    • Show more
    Location
    Lake Elsinore, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $12/hr
    Minimal Budget
    Under $1,000

    GoBro PH Services

    • Digital Services
    • Graphic Design
    • Web Design
    • Digital Marketing
    • Email Marketing
    • Social Media Marketing
    • BPO
    • IT Services
    • Customer Support
    • Managed Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Dental Industry
    • Hardware & Networking 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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Learn more about DesignRush Agency Ranking Methodology.

Sources

DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

  • Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
  • The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

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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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