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
United States × California × Electronics × Sort by: Top Rated × Clear Filters
  • Certified E-Commerce Development Company

    Certified E-Commerce Development Company...

    Top Services:

    • eCommerce Development
    • Web Development
    • IT Services
    • Web Design
    • Mobile App Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    16 Projects Listed

    Dinarys Services

    • eCommerce Development
    • Web Development
    • IT Services
    • Web Design
    • Mobile App Development
    • Staff Augmentation
    • Digital Strategy
    • Digital Services
    • Software Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Aroma Kava
    • LastBid
    • Budu Sushi
    • Magento 2 Migration
    • Rite Space
    • Bookbreakrs
    • Can
    • Vivat
    • Udifo
    • ServisBook
    Data sourced from the agency's DesignRush profile

    Dinarys Reviews & Testimonials

    • André Schörnig
      André Schörnig Marketing-Manager at myfelt GMBH
      5.0

      eCommerce Development Review from André Schörnig

      We have been working with Dinarys on our Shopify store for quite some time, and the experience has been great. From the very beginning, communication was clear, efficient, and reliable. The Dinarys team consistently delivered detailed proposals, stuck to agreed timelines, and offered well-structured solutions tailored to our needs. Their technical expertise is impressive, but what really sets them apart is their proactive attitude and genuine commitment to our project. Whenever we had questions or changes, they responded quickly and constructively. Its a true pleasure to work with a partner who feels like an extension of our own team. Highly recommended!

    • Nissrine Kohen
      Nissrine Kohen Sr. Backend Shopware Developers at H1 Webdevelopment
      4.5

      Web Development Review from Nissrine Kohen

      Weve been working with Dinarys for quite some time now, mainly collaborating on Magento and Shopware development projects. Their developers consistently show solid technical expertise and a good understanding of our expectations and workflow. Communication is generally smooth, and response times are quick. Whenever issues arise, the team is open to feedback and acts quickly to improve. Over time, weve seen a positive evolution in their proactiveness and alignment with our teams way of working. They are flexible and collaborative, and its clear that they genuinely aim to build long-term partnerships. For the quality delivered, we feel the pricing is fair and transparent. All in all, weve been satisfied with our cooperation and would recommend Dinarys as a development partner, especially for companies looking for experienced backend developers in Magento and Shopware.

    • Andrew White
      Andrew White Review from Google
      5.0

      Andrew White's Review Sourced from Google

      I'm wasn't in the German office, but i had experience of communication with this company! I can say that it leaves the warmest feelings in the my heart! Guys you are the best!

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

    BSS Commerce Services

    • eCommerce Development
    • Web Development
    • Software Development
    • Web Design
    • UI/UX Design
    • IT Services
    • Mobile App Development
    • Software Testing
    • Cybersecurity
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • PixePrint
    • OlogsBabyArtikel
    • HoolaHoola
    • Dippytee
    • Screenshotsinc
    • Frameless Hardware Company
    • Skandiastyle
    • Café Du Cycliste
    • Parfymonline
    • Supersports Vietnam
    Data sourced from the agency's DesignRush profile

    BSS Commerce Reviews & Testimonials

    • Anthony G
      Anthony G Review from Google
      5.0

      Anthony G's Review Sourced from Google

      It's the best app to sell Multichannel on Shopify. Otherwise you would have to pay 2000$ for Shopify PLUS. Support and Features are Great! Thats a company you want to work with together as a B2B seller! Especially thank you Jonas!

    • James Batson
      James Batson Review from Google
      5.0

      James Batson's Review Sourced from Google

      Great company with excellent customer service. Helped us solve an issue on our Magento 2 website, highly recommend to anyone looking for Magento plugins or development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Global Yet Local!

    Catalyst Business Solutions is a global technology consultancy headquartered in Silicon Valley. The firm delivers services in enterprise applications (Oracle, NetSuite, ERP/HCM/EPM/CRM), cybersecurity, cloud adoption, and industry-specific platforms such as social security, pension and electronic cargo...

    Top Services:

    • Cloud Consulting
    • IT Services
    • Cybersecurity
    Location
    San Jose, California
    Number of Employees
    100 - 249

    Catalyst Business Solutions Services

    • Cloud Consulting
    • IT Services
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Mauritius Telecom
    • Digitech
    • Axis Pay
    Data sourced from the agency's DesignRush profile
  • Your Ultimate Source for Talent Solutions

    Global Integrated Talent Solutions Provider - A Certified MBE Enterprise...

    Top Services:

    • IT Services
    • Staff Augmentation
    • Managed Services
    • HR Outsourcing
    • Show more
    Location
    San Jose, California
    Number of Employees
    250 - 499

    IntelliPro Services

    • IT Services
    • Staff Augmentation
    • Managed Services
    • HR Outsourcing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • Small Business Industry
    • Fintech Industry
    Data sourced from the agency's DesignRush profile

    IntelliPro Reviews & Testimonials

    • Dude
      Dude Review from Google
      1.0

      Dude's Review Sourced from Google

      Low quality and poor service. I requested documents to be delivered by a deadline. This company purposefully strung me along and procrastinated until after the deadline passed before retrieving the files. I do not recommend.

    • Danny Wang
      Danny Wang Review from Google
      5.0

      Danny Wang's Review Sourced from Google

      Amazing work culture, and a lot of potential for growth. I'm excited and honoured to work along side like minded bright and talented individuals along this journey.

    • Enbo Wang
      Enbo Wang Review from Google
      5.0

      Enbo Wang's Review Sourced from Google

      I am working at Intellipro Group now. Great company and worth for you to join, company culture is awesome.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Trusted Cloud & IT Advisors

    Helping transition your business to the cloud. Powerful communication, collaboration and productivity tools will unlock the potential of your organization...

    Top Services:

    • Cloud Consulting
    • IT Services
    Location
    Livermore, California
    Number of Employees
    Under 49

    Business Intelligence 101 Services

    • Cloud Consulting
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CARING HEALTH CENTER
    • SANNY BROS.
    • ROYALTY CLEANING SERVICES.
    Data sourced from the agency's DesignRush profile
  • Were Passionate Problem-Solvers Who Live & Breathe Embedded Software.

    JetHead was founded in 2003. Since then, we have expanded to include several software products and services with a focus on time-to-market and customer satisfaction. Our goal is to help customers and partners create great embedded software solutions...

    Top Services:

    • Software Development
    • IT Services
    Location
    Carlsbad, California
    Number of Employees
    Under 49

    JetHead Development Services

    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • AT&T
    • HUMAX
    • LG
    Data sourced from the agency's DesignRush profile
  • A Trusted Partner to Transform Your Business

    Global conglomerate Sumeru is based in Los Angeles. In the areas of IT talent augmentation and digital transformation, we offer a variety of specialized services and consulting...

    Top Services:

    • IT Services
    • CRM Consulting
    • Staff Augmentation
    • VR/AR
    • Blockchain
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $1,000 - $10,000

    Sumeru Services

    • IT Services
    • CRM Consulting
    • Staff Augmentation
    • VR/AR
    • Blockchain
    • Email Marketing
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IBM
    • HCL
    • DELL
    • T-Mobile
    • USC
    Data sourced from the agency's DesignRush profile

    Sumeru Reviews & Testimonials

    • Dionysus
      Dionysus Review from Google
      5.0

      Dionysus's Review Sourced from Google

      Unfortunately, there are no small, green omnipotent children, nor are there forest rangers, but there are a lot of smart people here and it kinda looks like an academic building in terms of architectural style. Just think twice before throwing a handful of leaves at someone. However, there are sentient fungi here, so take that as you will.

    • Eugen Krenz
      Eugen Krenz Review from Google
      1.0

      Eugen Krenz's Review Sourced from Google

      Absolute Non-Delivery and Ignorance of Client Needs - Legal Steps Being Taken I rarely write reviews, but my experience with Sumeru Inc. so abysmal that I feel compelled to warn others. I contracted this company for a high-value project, expecting professional and timely delivery as per their promises. What I received was nothing short of a disaster. Non-Delivery: Despite repeated assurances and deadlines, not only was the project delayed, but what was eventually sent was incomplete and of such poor quality that it was entirely unusable. Financial Duress: The sum charged for this project was exorbitant, especially considering that nothing of value was delivered. Payments were demanded under threats of halting the project, which now feels like outright extortion. No Source Code: Contrary to what was agreed upon, no source code files were provided, rendering any potential fixes or improvements impossible. Refund Ignored: Upon confronting them about these issues and asking for a refund, I was met with complete silence. My messages have been ignored, forcing me to take legal action. This has been a costly and time-consuming ordeal. I strongly advise against engaging with Sumeru Inc. Their lack of professionalism, poor execution, and complete disregard for their clients' needs are alarming. I am now in the process of taking legal steps to recover my losses.

    • Charlie Baldwin
      Charlie Baldwin Review from Google
      5.0

      Charlie Baldwin's Review Sourced from Google

      It was great working with Sumeru. We received comprehensive quality training on salesforce and other programs vital to our organization. They have wonderful, helpful people there.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Translating Ideas & Research to Market

    KritiKal Solutions is a technology design house and holds 22+ years of experience in AI, Computer Vision, Software Applications, Cloud and Mobile-based Solutions, Embedded Systems, Generative AI and Large Language Models. We specialize in R&D, product engineering, and innovation services...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • IoT
    • IT Services
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed

    Kritikal Solution Services

    • AI Development
    • Software Development
    • Mobile App Development
    • IoT
    • IT Services
    • Wearables
    • HR Outsourcing
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Vector USA
    • BYJU'S
    • P&G
    • Columbus
    • Continental
    • Honeywell
    • ITC
    • Stryker
    • G&D
    • University of Berkeley
    Data sourced from the agency's DesignRush profile

    Kritikal Solution Reviews & Testimonials

    • Aakriti Bhatnagar
      Aakriti Bhatnagar Review from Google
      5.0

      Aakriti Bhatnagar's Review Sourced from Google

      Great place to work. Very good learning opportunity.Best place for freshers to learn and gain knowledge. Supportive and understanding colleagues.

    • Jobin John
      Jobin John Review from Google
      5.0

      Jobin John's Review Sourced from Google

      One of the best aspects of working at KritiKal Solutions is the opportunity to collaborate with talented professionals across multiple domains. The company promotes a culture of innovation, knowledge sharing, and continuous improvement.

    • twinkle kumari
      twinkle kumari Review from Google
      5.0

      twinkle kumari's Review Sourced from Google

      A great workplace that encourages continuous learning, teamwork, and professional growth. The management maintains an open-door policy, making it easy to share ideas and collaborate across all levels of the organization.

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

    Sinelogix Technologies Services

    • Web Design
    • eCommerce Development
    • Web Development
    • WordPress Website Design
    • SEO
    • PPC
    • eCommerce
    • Email Marketing
    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Well Living Shop
    • Indian Beautiful Art
    • Propervise, Inc.
    • Tancart
    • Qorex Outsourcing
    • House of Chemicals
    • Nimmed
    • Medical Products Supply
    • Toyota
    • AXA Insurance
    Data sourced from the agency's DesignRush profile

    Sinelogix Technologies Reviews & Testimonials

    • Prashant Srivastav
      Prashant Srivastav Review from Google
      4.0

      Prashant Srivastav's Review Sourced from Google

      They have good approach implementing e-commerce applications. Provide healthy interaction while gathering the requirements. The best thing they are using the latest technologies running in the market and very good in migrating old and legacy applications.

    • Himanshu Agrawal
      Himanshu Agrawal Review from Google
      1.0

      Himanshu Agrawal's Review Sourced from Google

      Overpriced. Just because they are on top of the Google search doesn't necessarily make them the best. You will get a call from US number, california just to impress you and make you believe that you are working with a sophisticated and hifi company. Have been requesting the backup of my website for ages now, no reply received yet. Dont trust them just like that. If possible visit them and meet them. I am in Bangalore and this address is wrong.

    • Johns Schutz
      Johns Schutz Review from Google
      5.0

      Johns Schutz's Review Sourced from Google

      We hired Sinelogix to look after one of our projects and they out performed and out delivered. We are extremely happy with the results and hence we use sinelogix for marketing and branding of all our inhouse websites.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • When IT ABSOlutely has to work!!

    ABSO Technologies delivers reliable, enterprise-grade Managed IT Services to businesses, municipalities, and nonprofits. Our fully in-house team provides proactive support, cybersecurity, and strategic IT solutions to keep your organization secure, efficient, and focused on growth...

    Top Services:

    • IT Services
    • Managed Services
    • Cloud Consulting
    • Cybersecurity
    • Staff Augmentation
    • Show more
    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $90/hr
    Minimal Budget
    Under $1,000

    ABSO Technologies, Inc. Services

    • IT Services
    • Managed Services
    • Cloud Consulting
    • Cybersecurity
    • Staff Augmentation
    • IT Compliance Solution
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • CPA Firms
    • Moving Companies
    • City Governement
    • Schools
    Data sourced from the agency's DesignRush profile

    ABSO Technologies, Inc. Reviews & Testimonials

    • Paul Rogers
      Paul Rogers Review from Google
      5.0

      Paul Rogers's Review Sourced from Google

      ABSO came to our church’s school and remained flexible to deal with unexpected issues and set up several pieces of technology for us. They even came out afterwards when we were having some additional issues due to third-party equipment interfacing with what they set up. We are grateful for their attentive care for our campus to go above and beyond!

    • jacob jamal
      jacob jamal Review from Google
      5.0

      jacob jamal's Review Sourced from Google

      ABSO TECHNOLOGIES boasts an impressive array of products catering to diverse market segments. From consumer electronics to enterprise solutions, their product portfolio reflects a commitment to cutting-edge technology and user-centric design. Each offering is meticulously crafted to deliver exceptional performance and usability, setting Abso apart from its competitors. They have been a great help around the city I want to say thank you

    • Teddy Labissiere
      Teddy Labissiere Review from Google
      5.0

      Teddy Labissiere's Review Sourced from Google

      Has always been a pleasure working with the guys at ABSO. Whether you're a big team, small team, a corporation or a municipality, they've got you covered. It seems like they secure everybody's networks!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • The Leading Provider for Inventory & Warehouse Management Solutions

    WareGo is a leading provider of Warehouse Management Systems (WMS) and supply chain technology, dedicated to eradicating inventory chaos through intelligent automation...

    Top Services:

    • Software Development
    • IT Services
    Location
    Chino, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed

    WareGo Services

    • Software Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Eximpo
    • Oaks
    • GMI Trading
    • Whole Link Corporation
    • Urban Threads
    Data sourced from the agency's DesignRush profile

    WareGo Reviews & Testimonials

    • Matt D
      Matt D Review from Google
      5.0

      Matt D's Review Sourced from Google

      WareGo’s 3PL WMS have completely streamlined our operations. Our 3PL clients love having their own dashboard to see stock levels, and we’ve reduced our upkeep by nearly 30%

    • Harry B
      Harry B Review from Google
      5.0

      Harry B's Review Sourced from Google

      Their Bill of Materials (BOM) software is incredibly precise. We’ve seen a 40% reduction in inventory costs because we’re no longer over-ordering parts 'just in case.' The AI-powered demand forecasting accurately predicts our seasonal spikes, keeping us lean and efficient.

    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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