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

We Have Researched the Best California IT Support Companies For You

476 Companies - Rankings updated: July 05, 2026

All agencies are evaluated on DesignRush for demonstrated expertise and authentic client reviews to support your decision. Certain placements are paid.

United States × California ×
  • Empowering Businesses with Intelligent Data Solutions.

    Empowering Businesses with Intelligent Data Solutions.

    ZALICA is a premier IT consulting company specializing in big data and business intelligence solutions, combining advanced AI and ML technologies to empower businesses globally.  [... view 3Alica profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Software Development
    Location
    Glendora, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $99/hr
    Minimal Budget
    $1,000 - $10,000
  • Automate Sales. Scale Growth.

    Automate Sales. Scale Growth.

    SalesAutomators simplifies CRM implementation with tailored strategies that help businesses scale efficiently using cutting-edge sales tools.  [... view Salesautomators profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    Location
    Laguna Beach, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Powering Growth in Energy & Utilities.

    Powering Growth in Energy & Utilities.

    Methodia provides specialized technology and outsourcing solutions for the utility and energy retail sector. By combining industry expertise with tailored digital services, the firm helps businesses optimize operations, reduce costs, and accelerate growth.  [... view Methodia profile ]

    Top Services:

    • IT Services
    • Software Development
    • Managed Services
    Location
    Palo Alto, California
    Number of Employees
    100 - 249
  • Maximize Your Revenue

    Maximize Your Revenue

    A U.S.-based medical management partner that supports physicians by streamlining operations, reducing administrative burdens, and allowing providers to focus on delivering quality patient care.  [... view Doctor Management Services profile ]

    Top Services:

    • IT Services
    Location
    Anaheim, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    Under $1,000
  • Zeal of Being Innovative

    Zeal of Being Innovative

    Zobi Web Solutions, is a company which has been termed as, one of the most promising start up by industry experts and is a leading IT solutions provider and ITES Company in Ahmedabad. We are respected and trusted to produce and provide only the best quality of projects & services.Customer needs, defines  [... view Zobi Web Solutions profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Mobile App Development
    Location
    Palo Alto, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Your Trusted IT Consulting Company for Business Success.

    Your Trusted IT Consulting Company for Business Success.

    TST Technology is an IT consulting company that offers services such as UI/UX design, web and mobile app development, software development, and SaaS product development. They have completed over 40 projects across 15+ industries.  [... view TST Technology profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $1,000 - $10,000
  • Your partner from creation to promotion.

    Your partner from creation to promotion.

    Vipra is a technology consultation service provider with 100+ experienced developers and designers on board, we have assisted startups to enterprises in achieving digital success all across the Globe, we are very strong with quality and timely delivery.  [... see all Vipra Business Consulting Services Pvt. Ltd. reviews ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Mobile App Development
    Location
    Walnut, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
  • Best Game Development Company in USA.

    Best Game Development Company in USA.

    Source Code Lab is the Best Custom Game Development Company in Usa/India.Our game developers build remarkable games compatible with the most popular platforms to attract the attention of a wider audience.  [... view Source Code Lab profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Wearables
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    Portfolios Count
    1 Project Listed
  • See Beyond, Rise Above.

    See Beyond, Rise Above.

    Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology.  [... view Persistent profile ]

    Top Services:

    • IT Services
    • Cybersecurity
    • Mobile App Development
    Location
    Santa Clara, California
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $50,000 & Up
  • Your Digital Growth Success Partner.

    Your Digital Growth Success Partner.

    CONTUS Tech stands as a prominent global authority in digital engineering services, heralded for its transformative impact on businesses worldwide. Our forte lies in crafting cutting-edge digital products, pioneering connected vehicle experiences, and spearheading next-generation streaming services that  [... view CONTUS Tech profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    Santa Clara, California
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $25,000 - $50,000
  • Transform Your Business with Our End-to-End IT Solutions.

    Transform Your Business with Our End-to-End IT Solutions.

    Chipsy Information Technology Services Pvt Ltd. offers comprehensive IT solutions, including expert consulting, mobile app development (VitalBase is an ABDM-enabled hospital management information system), application development, school management systems, and DevOps services.  [... view Chipsy IT Services Pvt. Ltd. profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $12/hr
  • Enterprise Product Development- DELIVERING INNOVATION

    Enterprise Product Development- DELIVERING INNOVATION

    CoreView Helps Enterprise Business to develop the product from start to finish.  [... view Coreview profile ]

    Top Services:

    • IT Services
    • Software Development
    • Web Development
    Location
    Fremont, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    1 Project Listed
  • Transforms Digital Idea Into Reality

    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.  [... view Appther profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    Signal Hill, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $22/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed
  • Your Partner for Digital Excellence

    Your Partner for Digital Excellence

    TenUp Software Services is an ISO 27001-certified, AWS-partnered software firm serving clients across 7+ countries. With 70+ experts and 20+ years of leadership experience, we deliver tailored solutions in ALM, Digital Transformation, Product & Cloud Engineering, DevOps, AI, and Data Services. Recognized by  [... view TenUp Software Services profile ]

    Top Services:

    • IT Services
    • Software Development
    • AI Development
    Location
    Palo Alto, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
  • Global Web Development & Digital Marketing Experts

    Global Web Development & Digital Marketing Experts

    DS Technologies is a global web design, development, and digital marketing agency. We specialize in creating innovative, custom solutions that drive measurable results. With expertise in SEO, UI/UX, and scalable web applications, we help businesses worldwide grow their digital presence and achieve sustainable  [... view DS Technologies (Pvt.) Limited profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Outsourcing
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Change Before You Have To

    Change Before You Have To

    KriyaTec is a software development and services company. We leverage Blockchain, IoT, RPA, AI,Ml to paradigm shift your enterprises or startups from what you are to what you want to be.  [... view KriyaTec IT Systems profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
  • Propelling Businesses using Technology

    Propelling Businesses using Technology

    Pace Wisdom Solutions is a deep-tech Product engineering and consulting firm. We have our offices in San Francisco, USA & Bangalore, India. We specialize in designing and developing bespoke software solutions that cater to solving niche business problems.  [... view Pace Wisdom Solutions profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Mobile App Development
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
  • IT Services For Your Company

    IT Services For Your Company

    We can provide cost-effective solutions and increase customer margins because of our aggressive rate card and reusable assets.  [... view Ojas Innovative Technologies profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Web Development
    Location
    Santa Clarita, California
    Number of Employees
    500 - 999
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • AI Enabled Digital Transformation

    AI Enabled Digital Transformation

    Nextwebi, a technology-driven digital transformation company delivering intelligent, AI-powered solutions to businesses of all sizes. We partner with startups, SMEs, & enterprises & help them adopt modern tech that improve efficiency, enhance customer experiences, &unlock new growth opportunities.  [... view Nextwebi It Solutions Pvt Ltd profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
  • Full-service IT solutions company

    Full-service IT solutions company

    A full-service IT company with ISO 9001:2015 certification, Cybrain Software Solutions provides top-notch software solutions to brands all over the world.  [... view Cybrain Software Solutions profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Mobile App Development
    Location
    Ventura, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $1,000 - $10,000
  • Your Business Cataylst

    Your Business Cataylst

    ByteBotix InfoTech LLP is the top service provider, We focus on Industrial and web intelligence, Web and Mobile Applications and IOT based products. Whether you are a small , medium or largescale company we have got covered you all. What makes us stand out is that we deliver secured, standard and cost  [... view ByteBotix InfoTech LLP profile ]

    Top Services:

    • IT Services
    • Mobile App Development
    • Software Development
    Location
    Vacaville, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
  • “Simplifying doing business with innovative IT solutions”

    “Simplifying doing business with innovative IT solutions”

    A Trusted Global Partner for Transforming Businesses with AI, Salesforce & Analytics  [... view Cymetrix profile ]

    Top Services:

    • IT Services
    • Software Development
    • Web Development
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $50/hr
  • Crafting Websites, Creating Success!

    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  [... view Invoxico Technologies profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Cybersecurity
    Location
    La Puente, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
  • Empowering Businesses Through Innovative Software Development

    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  [... view TechnoBrains Business Solutions profile ]

    Top Services:

    • IT Services
    • eCommerce Development
    • Mobile App Development
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Minimal Budget
    $10,000 - $25,000
  • SAP Consulting for Business Growth

    SAP Consulting for Business Growth

    Accely is a premier SAP consulting agency renowned for its refined methodologies, innovation, and vast expertise. With a focus on delivering robust, scalable, and quality solutions, Accely offers tailored SAP consulting services that ensure a higher return on investment (ROI). Whether clients are small  [... view Accely profile ]

    Top Services:

    • IT Services
    Location
    Newport Beach, California
    Number of Employees
    500 - 999
    Minimal Budget
    $25,000 - $50,000

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. 

About The Author and Expert Reviewer

Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.

Former Development Director

Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.