Top IT Services Companies in California

Are you looking to seek consultation from the best IT services companies in California? Professional IT services lend you a fresh perspective and help you analyze your existing setup. Innovative solutions from IT service providers will act as a catalyst to bring about positive changes in your current setup and help you strengthen the security of your data. With cost-effective, customized solutions, you can realize more productivity in your structure. Here is a list of the top IT firms in California rated on quality, reliability, and ability.

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726 CompaniesRankings updated: May 13, 2026
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List of IT Services Companies in California | Top IT Firms in California

  • Redfox Security is a fast-growing cyber security consulting firm, spread across 4 countries. With over 9 years of global security consulting experience, we help businesses strengthen their security posture. Our mission is to help businesses grow securely with our top-line cyber security consulting services – and that’s exactly what we do. We leverage our insightful ... read Redfox Security reviews & insights

    $150 - $199/hr
    2 - 9
    2020
    Santa Clara, California
  • Fabric Staffing is the best tech recruiters and tech staffing agency in Los Angels & Austin. We offer a diverse set of recruiting and consulting services to the most revolutionary start-ups and renowned global enterprises, who are looking to build top-quality teams of software engineers. Our team of recruiters specializes in rapid growth hiring for ... read Fabric Staffing reviews & insights

    NA
    10 - 49
    2016
    Marina del Rey, California
  • Concentric AI helps enterprises autonomously discover and protect mission critical data contained in unstructured or structured data repositories as well as email and messaging applications. Concentric’s unique approach uses deep learning to contextually understand all mission critical data and help prevent data loss by identifying risky sharing of sensitive data without rules or complex upfront ... read Concentric AI reviews & insights

    < $25/hr
    10 - 49
    2019
    San Jose, California
  • GCC Consulting's mission is to enable brands to make an impact in their industry. We work closely with brands and medical practices to help meet the needs of today’s ever changing digital world. Our team has over a decade of experience and offers a customized marketing approach to help your business grow its presence online ... read GCC Consulting reviews & insights

    NA
    2 - 9
    2018
    Irvine, California
  • Rakuten Symphony’s Symworld™ Cloud solves the challenges in automating the deployment, scaling, and lifecycle management of 5G, edge, and enterprise applications. Its hyperconverged Kubernetes for Stateful Edge automates the deployment of complex 5G and edge apps to improve productivity and reduce cost. Symworld™ Cloud is delivering on today’s mobile operators’ needs in the simplest way and preparing for ... read Symworld™ Cloud reviews & insights

    NA
    2 - 9
    California City, California
  • Brightlio is committed to being your most trusted and most responsive IT solutions provider. We believe in partnership. The best business relationships aren‘t transactional. They are built through years of mutually shared success. We are committed to enabling your success through technology. We are problem solvers. We enjoy solving our clients’ toughest challenges using our ... read Brightlio, LLC reviews & insights

    NA
    2 - 9
    2022
    Culver City, California
  • One multi-framework platform to achieve compliance with SOC 1, SOC 2, HIPAA, ISO 27001, NIST 800-53, PCI DSS and GDPR. Compliance automation cuts time, cost & risk out of compliance readiness and audit. Extraordinary service & support. Patented AI technology.

    NA
    10 - 49
    2017
    Sunnyvale, California
  • Single Point of Contact a white label IT firm that provides you with services which help you create your own brand with an already set up brand. Our white label IT services consists of different services like server support, 24/7 network support, and onsite support. Additionally, our help desk support will help you to deal ... read Single Point of Contact reviews & insights

    NA
    10 - 49
    1999
    Palo Alto, California
  • IT Support Los Angeles: Have You Outgrown Your IT Support? Chances are you’ve been with your current IT support Los Angeles for a long time. You’re starting to get the feeling that they might not be the best choice, long-term. Often, the Computer Support Los Angeles you selected at the beginning of your business is ... read Remote Techs reviews & insights

    NA
    50 - 249
    0
    Los Angeles, California
  • SafeAeon is a leading cybersecurity company that specializes in protecting organizations from evolving cyber threats. With a mission to empower businesses with robust security solutions, SafeAeon offers a range of services including penetration testing, managed detection and response (MDR), security consulting, incident response, security awareness training, and compliance and governance support. Backed by a team ... read SafeAeon.Inc reviews & insights

    NA
    50 - 249
    2019
    Pleasanton, California
  • Skyward Technical Solutions is the best IT support and IT services company in Orange County! We provide technical support and managed IT services to the small business sector with a focus on businesses that don't have the need or means for a full time employee. Enter Skyward. We are your outsourced IT department! We typically ... read Skyward Technical Solutions reviews & insights

    NA
    2 - 9
    2010
    Laguna Niguel, California
  • SharkStriker is a global cybersecurity vendor with a presence in around 30+ countries. They were founded with the sole purpose of empowering MSPS solving industry cybersecurity challenges such as: Their cybersecurity services are tailored to solve multi-faceted cybersecurity bottlenecks across industries. These challenges include Lack of compliance. Low cybersecurity posture, Lack of skilled personnel in ... read SharkStriker reviews & insights

    NA
    10 - 49
    2019
    Walnut Creek, California
  • GEX Search is a global recruitment agency that specialises in sourcing hand-picked IT talent for progressive organisations. Get in touch with our experts to amp your career story. Globally, recruitment businesses are looking for solutions that can enable them to manage the sudden inflow of work while keeping operating costs in check. “GEx – Offshore Recruitment ... read GEX Search reviews & insights

    NA
    2 - 9
    Irvine, California
  • We provide outsourced tech services to small to medium sized business's. Our main focus is uptime, data protection, and tech management. We are here to advise and support you and your company as it grows and becomes a major success.  

    $25 - $49/hr
    2 - 9
    2003
    Riverside, California
  • Milestone Technologies is a global IT managed services firm that partners with organizations to scale technology infrastructure and services, drive digital transformation, and increase shareholder value. We specialize in providing Digital Workplace Services, Application Services and Consulting and Private Cloud Services and Data Center Operations.

    < $25/hr
    2 - 9
    Fremont, California
  • Servixer is an all-in-one business support platform based in the United States. We want to uplift our clients and lessen their workload through smart tracking of their quality and outsourcing their services. Our mission is that of success achieved by the success of others. Youth is the focus of our business as we aim to ... read Servixer reviews & insights

    NA
    2 - 9
    0
    Azusa, California
  • Code Red specializes in cyber security staffing. We help startups to mature their security programs and scale teams, through exceptional security talent. We recruit exclusively in the security space, giving us an in-depth understanding of the needs of both the job seekers and employers that we partner with.  

    $25 - $49/hr
    2 - 9
    San Francisco, California
  • Tiara Consulting is a Global IT Solutions provider headquartered in San Ramon, California with business operations across US, UK, UAE (Dubai), Singapore and India. The company focuses on delivering project based IT solutions and services in Business Intelligence (BI), CRM, ERP, Business Applications, Quality Engineering, and our own integration product called TIPS and work on emerging technologies.Our vision is to become one of ... read Tiara Consulting reviews & insights

    NA
    10 - 49
    2011
    San Ramon, California
  • REMSIS is helping San Diego businesses establish secure, compliant, and productive IT Infrastructure and Solutions, while working alongside them to help manage their daily IT operations to increase efficiency and reliability. We have the skills and experience in anticipating potential challenges and solving problems. Thanks to our cutting edge technology and highly skilled engineers, we ... read Remsis reviews & insights

    NA
    10 - 49
    San Diego, California
  • Outsourcing doesn’t have to be difficult. It can be strategic! And so seamless that your customers will never know you are outsourcing...Our vision is simple: Make outsourcing simple…so that we can deliver Best in Class Customer Experience.  From the routine to the complex, TSI’s solutions are always omnichannel and always Execution. Guaranteed!   We invite you to ... read Tri Source International reviews & insights

    < $25/hr
    1,000 - 9,999
    2007
    Valencia, California
  • Parablu is a cloud data protection and management company specializing in providing secure data backup, archival, and file sharing solutions. Founded in 2015, the company aims to address the challenges associated with data security and regulatory compliance in the digital age. Parablu's offerings are particularly focused on enterprise-level needs, ensuring that sensitive information is securely ... read Parablu Inc reviews & insights

    NA
    10 - 49
    2015
    San Francisco, California
  • Ready to take the wheel in your career? Elite HR Careers connects you with top CDL jobs in California. Whether you're a seasoned driver or new to the industry, we have a variety of roles to match your skills and experience. Join our network of professionals today and drive towards a successful future with the ... read Elite HR Careers reviews & insights

    NA
    2 - 9
    Sacramento, California
  • We help you answer the most pressing questions of your business:  - Keeping up with Cyber Security  - Improving IT reliability  - Supporting a flexible workforce  - Building an agile IT operation   Our Solutions are: - Cyber Security - User & Device Management - Managed Networks - Cloud & Systems Services We have a ... read L3 Networks Inc. reviews & insights

    NA
    10 - 49
    2000
    Cypress, California
  • We offer professional website design and IT consulting services. Based in Sacramento California. We value our customers and strive for quality and proactive approach. We also offer Search Engine Optimization and marketing services!  Providing services from business network design & implementation to data security service, from website design to Search Engine Optimization. Anything your business needs ... read New Level Designs reviews & insights

    $50 - $99/hr
    Freelancer
    2004
    Sacramento, California
  • NMS Consulting is a global corporate advisory firm providing strategic counsel to private and public organizations and the individuals who lead them. The combination of our diverse skills, global network, and deep expertise offers clients a unique multi-disciplinary perspective. NMS Consulting integrates its practice between three business units to provide clients with a holistic and ... read NMS Consulting limited reviews & insights

    NA
    2 - 9
    2010
    Beverly Hills, California
  • California-based organizations hire Endsight to ensure that their technology systems operate effectively and align with their business goals. They rely on our award-winning helpdesk support, secure environment, and strategic guidance to thrive. From the help desk specialists to technical account managers, and project managers, Endsight's team collaborates to provide comprehensive IT support to small and ... read Endsight reviews & insights

    $25 - $49/hr
    50 - 249
    2004
    San Diego, California
  • Next Plus LLC is a trusted IT and financial services provider serving small and mid-sized businesses, nonprofits, and government agencies. As a federal contractor, we specialize in reliable, secure technology management, bookkeeping, and tax services, empowering organizations to streamline operations and achieve lasting growth.

    $150 - $199/hr
    2 - 9
    2024
    Tracy, California
  • InterraIT, a Ferfier group company, is a leader in Digital Engineering services focused on the Mobility and Manufacturing space. With over two decades of experience, we help customers in their Digital Transformation and Modernization journey with cutting-edge technology, enabling them to transform, grow, and thrive in a dynamic digital era. With a global presence and ... read Interra Information Technologies (InterraIT) reviews & insights

    $25 - $49/hr
    250 - 999
    1996
    Irvine, California
  • Alchemy is a comprehensive Web3 infrastructure platform that enables developers to build, deploy, and scale applications on blockchain networks with greater ease and efficiency. Instead of requiring teams to manage their own complex blockchain nodes and backend systems, Alchemy provides reliable APIs, developer tools, and data services that simplify interaction with networks like Ethereum and ... read Alchemy 2.0 reviews & insights

    $50 - $99/hr
    250 - 999
    2017
    San Francisco, California

    Why Alchemy 2.0?

    • Backed by leading venture capital firms
    • World-class engineering team from companies
    • Leading web3 development platform
  • Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to ... read Cloudflare reviews & insights

    $150 - $199/hr
    1,000 - 9,999
    2009
    San Francisco, California
  • Using AI Tools

    • ClaudeClaude
    • ChatGPTChatGPT
    • GeminiGemini
    • CursorCursor
    • Google AI StudioGoogle AI Studio
    • + 1 More

    Building an AI-native GRC platform that replaces manual, outdated governance processes with agentic frameworks designed for organizations enabling AI. Cloud360 delivers real-time security posture, AI-generated cyber risk profiles, continuous attack surface discovery, and AI pen testing — all built on the principle that compliance does not equal secure. Core focus areas: → AI governance frameworks ... read Cloud360 Technologies reviews & insights

    $100 - $149/hr
    Freelancer
    2024
    San Diego, California

    Why Cloud360 Technologies?

    • Proven Expertise
    • High quality solutions
    • Afordable
  • Using AI Tools

    • ClaudeClaude

    Pelicora is a San Diego-based IT company dedicated to providing computer support and services for small businesses.

    NA
    2 - 9
    2026
    San Diego, California

    Why Pelicora?

    • Free quotes and affordable services
    • Customer oriented
    • Professional services
  • Be Structured Technology Group, Inc. is a leading Managed Services IT provider in the Los Angeles Metro and Orange County. We partner with small businesses and non-profits by assuming the full responsibility of an IT department. We provide proactive solutions, expert help, responsive service, and a CTO/CIO at half the cost of a full-time IT ... read Be Structured Technology Group, Inc. reviews & insights

    < $25/hr
    10 - 49
    2007
    Los Angeles, California
  • TeraCloud is a consulting company created by certified cloud experts in migrating and deploying startups, enterprises and everything in between to the cloud. Our expertise range from designing state of the art cloud architecture to deploying and managing cloud environments through Managed Services including AWS Architects, DevOps, 24/7 Support, Automation, Monitoring, Disaster Recovery and Security. We ... read Teracloud reviews & insights

    $25 - $49/hr
    10 - 49
    2017
    San Francisco, California
  • Synopsys technology is at the heart of innovations that are changing the way we live and work. The Internet of Things. Autonomous cars. Wearables. Smart medical devices. Secure financial services. Machine learning and computer vision. These breakthroughs are ushering in the era of Smart, Secure Everything―where devices are getting smarter, everything’s connected, and everything must ... read Synopsys reviews & insights

    < $25/hr
    10000+
    1986
    Mountain View, California
  • For Hubrum, “ Redefining the fututre” is more than a slogan - it reflects our approach to every engagement. Hubrum delivers digital transformation and technology services from ideation to execution, enabling Global clients to outperform the competition. “Born digital,” Hubrum takes an agile, collaborative approach to creating customized solutions across the digital value chain.

    $25 - $49/hr
    10 - 49
    2017
    Santa Clara, California
  • Trace3, a pioneer in business transformation solutions, empowers organizations to lead their market space by keeping pace with the rapid changes in IT innovations ensuring relevance to specific business initiatives required to maximize revenue generation by leveraging the latest Silicon Valley, cloud, big data and datacenter technologies maximizing organizational health. We have a unique ability ... read Trace3 reviews & insights

    $150 - $199/hr
    250 - 999
    2002
    Orange County, California
  • Founded in 1998, OC IT Solutions is a leading MSP (Managed Service Provider) providing IT support services to businesses of all sizes in various industries. We offer a host of business technology services from managed IT and network security services to telecommunication and surveillance systems.

    $150 - $199/hr
    2 - 9
    1998
    Irvine, California
  • WATI is an IT services and solutions firm focused on Cyber Security Solutions, IT Security Services, Risk Management, Cloud Enablement, Business Intelligence, System Modernization, ERP Implementation, System Integration, for public sector agencies and enterprises across diverse industries. With decades of experience and an evolved delivery model, We deliver specific solutions that enable business efficiencies to organizations. We ... read West Advanced Technologies Inc reviews & insights

    $50 - $99/hr
    50 - 249
    1998
    Sacramento, California
  • At Fusion Technology Solutions, we are serious about combining business and technology. And while we love technology (after all that’s why we got into this business) we’re about more than blinking lights, and gigabytes. We’re about helping you get things done. So whether you’re trying to increase sales, manage expenses, or improve employee morale, we ... read Fusion Technology reviews & insights

    $25 - $49/hr
    10 - 49
    2001
    Newport Beach, California
  • LevelShift – your AI transformation partner, is a global technology solutions provider founded in 1998. We have been certified as a ‘Great Place to Work’ for five consecutive years from 2021 to 2025. Our 300+ customers consider us a highly trusted partner for innovation and AI adoption. LevelShift helps organizations transform into AI-native enterprises, embedding artificial intelligence across core business ... read LevelShift reviews & insights

    NA
    250 - 999
    Irvine, California
  • Since 2005, Promising Solutions has been helping small to mid-size businesses redefine the meaning of IT support and create a better IT experience. Our services include Office 365 migration, managed IT services, cloud services, telecommunications services, managed security services, and help desk & support. We focus on developing strong partnerships with our customers by delivering ... read Promising Solutions reviews & insights

    NA
    2 - 9
    2005
    Glendale, California
  • The SEO Doctors is a leading search engine optimization company located in New York City. Our team of experts specializes in providing customized SEO solutions to help businesses increase their online visibility and reach their full potential. Our services include keyword research, on-page optimization, technical SEO, link building, and reporting and analysis. We prioritize transparent ... read The SEO Doctors reviews & insights

    NA
    10 - 49
    2016
    Los Angeles, California
  • Apex Solutions, a leading Managed Service Provider (MSP) that provides comprehensive IT services and solutions to businesses of all sizes. Our mission is to deliver innovative and reliable IT solutions that help our clients achieve their business goals. At Apex Solutions, we pride ourselves on our team of highly skilled professionals who are passionate about ... read Apex Solutions MSP reviews & insights

    $50 - $99/hr
    2 - 9
    2023
    Redlands, California
  • Welcome to Giamars Technology, a leading software development company that is changing the game in the tech industry. With a team of highly skilled and innovative developers, we are dedicated to creating cutting-edge solutions for businesses of all sizes. At Giamars Technology, we understand the importance of staying ahead of the curve in today's ever-evolving digital ... read Giamars Technology reviews & insights

    $25 - $49/hr
    2 - 9
    2020
    San Francisco, California
  • PCFitment specializes in automotive fitment data solutions for auto parts eCommerce businesses. We provide precise parts compatibility data, vehicle application mapping, and catalog optimization services. Our accurate fitment system helps reduce returns, improve product accuracy, and increase online sales for automotive retailers and distributors globally.

    < $25/hr
    10 - 49
    2015
    Los Angeles, California
  • BizzSecure provides the most effective Cyber Security services. We understand the importance of IT Compliance risk assessment services for your business and effectively implement compliance risk management for you. With the most competent EAID: next Generation GRC Solutions, you can rest assured about the security of your company's network entirely. We focus on the key ... read Bizz Secure reviews & insights

    NA
    50 - 249
    0
    Fremont, California
  • Customized business technology solutions & managed IT services w/ cybersecurity, IT disaster recovery, & cloud networking in Los Angeles.

    NA
    10 - 49
    Los Angeles, California

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