Top IT Services Companies in California
Goodfirms has reviewed 818 IT Services Companies in California as of November 2026. The top-ranked firm is Instinctools (4.9 stars, 27 verified reviews, $25 - $49/hr, founded 2000, San Francisco). Across the category, the median hourly rate is $25, median client rating is 4.9, and 33% of firms employ 50+ members. Explore the vetted IT Services Companies in California below, compare their strengths, and connect with the provider best suited to your requirements.
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.
Goodfirms has verified 818 IT Services Companies in California - part of 18,244+ IT Services Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of IT Services Companies in California | Top IT Firms in California
Spin.AI is a leading SaaS security provider that helps enterprises eliminate risks such as shadow IT, data leaks, ransomware attacks, and compliance gaps. Its unified platform, SpinOne, delivers comprehensive protection for mission-critical SaaS applications, including Google Workspace, Microsoft 365, Salesforce, and Slack. SpinOne combines SaaS security posture management (SSPM), data loss prevention (DLP), ransomware protection, ... read Spin.AI reviews & insights
NA50 - 2492017Palo Alto, United StatesWhy Spin.AI?
- 99.99 Percent Recovery Success Rate
- Compliance-ready from day one
- AI-driven risk decisions at scale
Using AI Tools
Replit
Brevi Software Pvt. Ltd. is a renowned software company that offers various data recovery, email migration and cloud backup solutions for home users as well as businesses. These tools are tailored for easy operations from, file format conversion, corrupt data file repair to email transfer between Outlook, Office 365 (Microsoft), Gmail etc. Brevi Software is ... read Brevi Software Pvt. Ltd. reviews & insights
NA2 - 92025California City, United StatesWhy Brevi Software Pvt. Ltd.?
- Reliable & Accurate Solutions
- Wide Range of Products
- User-Friendly & Secure
Using AI Tools
ChatGPT
Claude
Perplexity
IntSignal is an enterprise technology company delivering cloud infrastructure, cybersecurity, managed IT, and resilient digital operations for modern organizations.We specialize in private cloud architecture, cybersecurity operations, infrastructure modernization, disaster recovery, compliance focused environments, and scalable enterprise platforms designed for performance, resilience, and operational control.Our approach combines engineering discipline with practical business execution. We build and ... read intSignal reviews & insights
$300+/hr10 - 492016Santa Ana, United StatesWhy intSignal?
- Senior Led Engineering Team
- Cybersecurity Focused Operations
- Telecom and Infrastructure Access
Using AI Tools
ChatGPT
Claude
Perplexity
GitHub Copilot
Cursor
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Applicature is a blockchain consulting and venture-building house helping founders and enterprises design, launch, and scale Web3 products. Since 2017, we have delivered 270+ blockchain projects across DeFi, NFTs, token launches, enterprise blockchain, smart contracts, tokenization, exchanges, and Web3 infrastructure.We work with clients from concept to scale, providing end-to-end support across blockchain feasibility, architecture, tokenomics, ... read APPLICATURE reviews & insights
$50 - $99/hr2 - 92017San Rafael, United StatesWhy APPLICATURE?
- Blockchain pioneers since 2017
- 270 Web3 projects delivered
- Venture builders, not vendors
Using AI Tools
ChatGPT
NewRocket is the AI-first Elite partner that activates real value on ServiceNow. As a trusted advisor to enterprise leaders, NewRocket combines industry expertise, human-centered design, and enterprise-grade AI to help organizations navigate change and scale with confidence. With two decades of experience guiding clients to realize the full potential of the ServiceNow AI Platform, NewRocket ... read NewRocket reviews & insights
$50 - $99/hr1,000 - 9,9992016Vista, United StatesUsing AI Tools
Claude
GitHub Copilot
The website, app, or tool your customers see is their first impression of your business. I started Dary Technologies because the best work happens with a partner who sees the whole picture. That's what I bring to every project: not only code that works, but decisions that make sense for your business.I build for the ... read Dary Technologies reviews & insights
$50 - $99/hr2 - 92026Corona, United StatesWhy Dary Technologies?
- Affordability
- Design Expertise
- Availability
Using AI Tools
ChatGPT
CyberTek Services is a blockchain security and Web3 technology company specializing in helping decentralized projects build, launch, and operate secure blockchain ecosystems. With expertise across smart contracts, decentralized applications, DeFi platforms, NFTs, DEXs, launchpads, and Layer 1 and Layer 2 networks, CyberTek Services provides security-focused solutions designed around the technical requirements of modern blockchain projects.The ... read CyberTek Services reviews & insights
$25 - $49/hr10 - 492025Los Angeles, United StatesWhy CyberTek Services?
- Expert Blockchain
- Comprehensive Web3 Audits
- Advanced Threat Protection
HabileData provides end-to-end data services that help businesses scale their AI and digital operations. With over 25 years of experience, the company specializes in data annotation, data enrichment, and digitization, delivering accurate and secure solutions that meet the demands of modern enterprises. HabileData’s team annotates images, videos, text, and multimodal data to train AI models ... read Habile Data reviews & insights
NA1,000 - 9,9991992Santa Clara, United StatesWebcenture is a top-ranked Virtual assistant company that offers online virtual assistants services across the world. Dedicated virtual assistant services Trusted by entrepreneurs and busy peoples from all over the world! Uncompromised quality at affordable prices. ... read Webcenture reviews & insights
NA2 - 9Palo Alto, United StatesOS Technical is a premier IT Staffing & IT Recruiting company based out of Newport Beach, California. We provide top IT Consultants or IT permanents placements for medium to large size organizations across Orange County, Los Angeles & Southern California. We are an IT staffing solutions company. We provide contract or permanent placements for IT ... read OS Technical Staffing Solutions reviews & insights
NA2 - 91998Newport Beach, United StatesInfonikka is a leading IT Consulting Services Company, helping clients evolve as per the dynamic market needs & stay ahead of the industry trends. Our personalized solutions enable our clients resolve their challenges, attain greater efficiencies, embrace the unexpected & grow their businesses. Equipped with years of experience in delivering leading-edge technology solutions to enterprises ... read Infonikka reviews & insights
$25 - $49/hr250 - 999Fremont, United StatesCapital Network Solutions, Inc. (CNS) is the premier Northern California network services and IT consulting company. Established in 1989, we have supported hundreds of small to medium-sized businesses in the Greater Sacramento Area. ... read Capital Network Solutions reviews & insights
< $25/hr2 - 91989Sacramento, United StatesCloud 10 has a client-focused approach to service and we are creating a new IT experience that’s customized to our clients unique business needs. The Cloud 10 experience offers jargon-free client education, and remote services whenever possible to ensure minimal disruption to your workflow. Cloud 10 is committed to providing our clients with the latest ... read Cloud 10 Infotech reviews & insights
< $25/hr2 - 9San Diego, United StatesOur mission is to enhance our client’s communications capabilities with the most innovative and technologically advanced products and services available in the world today. We aim to create communication networks that exceed the expectations of our clients and span the gap towards their future needs. ... read Ashby Communications reviews & insights
< $25/hr10 - 491991Roseville, United StatesWY Technology was founded in 1999 to assist businesses in leveraging technology to provide creative solutions to the challenges they were facing. Services in California were first provided, and national support was in 2006. At present, WY Technology has the main office in Shenzhen China. Leveraging Technology to for Progressive Businesses Complete IT Solutions WY ... read WY Technology reviews & insights
< $25/hr50 - 2491999San Diego, United StatesIT Exchange, Inc is a new age IT outsourcing marketplace focused on building high-quality technology teams for emerging and midsize companies. We have a curated network of 500 world class IT service providers collectively with 700,000+ resources across 600+ technologies. Buyers can choose from software & hardware skills including cutting edge, legacy, niche and even ... read IT Exchange reviews & insights
NA10 - 492012Walnut, United States314e is a Healthcare IT products and solutions company based out of San Francisco, CA. Since 2006, 314e has worked with 250+ enterprise customers in North America, including healthcare providers, payers, and life science companies. 314e helps its customers by enabling their digital transformation journey via products like Healthcare Digital Adoption Platform (Jeeves), Data Analytics ... read 314e Corporation reviews & insights
NA250 - 9992006Pleasanton, United StatesSMBDAILY offers a wide range of small business solutions to small business owners or individuals. SMBDAILY acknowledges its consumer with a daily dose of financial news, trends, technical aspects & consultation. With a market reputation of best bookkeepers & finance experts, SMBDAILY ensures successful financial management for a business globally. ... read SMBDAILY reviews & insights
$50 - $99/hr2 - 92018West Hollywood, United StatesLook far and wide, we bet you’ll never find another agency that can successfully manage everything from Digital Marketing to IT Consulting to Software Development and still have a sense of humor! Tech doesn’t have to be scary, which is why our Project Captain framework focuses on bringing a human approach to technology consulting. When ... read Specter reviews & insights
NA10 - 492020Auburn, United StatesVicert is a pioneer in the health tech industry and are custom healthcare software developers. We specialize in health cloud solutions, interoperability, Telehealth, patient engagement and portals, and remote patient monitoring. Whether you are looking for a qualified healthcare software development team that can help with EHR integration services or Clinical Decision Support Systems, Vicert ... read Vicert reviews & insights
NA10 - 49San Francisco, United StatesWeb development company - NodeDevelop Node.js, React.js, Express.js, Next.js, JavaScript, Java, Angular, PHP, Python, Ruby on Rails, HTML5, React-Native, .NET, Scala ... read NodeDevelop reviews & insights
$50 - $99/hr10 - 4922Redwood City, United StatesSwiftTech Solutions is a top-rated IT Services provider based out of Tustin, CA. We serve all of Orange County and Los Angeles. Our services include managed IT services, computer support, data backup and recovery, network security, and more. Contact us today to learn more about our services and how we can help your business grow. ... read SwiftTech Solutions Inc. reviews & insights
NA50 - 2492001Tustin, United States20 Years Of Experience Your IT Team Of Experts Our specialty is providing strategic services for how you work, operate, and grow. We think this is important because IT is about people, not computers. Precision IT Consulting was founded in 2006, and we currently have 15 full-time employees. We primarily work with clients that have ... read Precision IT Consulting reviews & insights
NA10 - 492006Concord, United StatesAgile Soft Systems Inc a USA-based software development company that specializes in providing high-quality software development services to businesses across various industries. With a team of experienced software engineers and developers, we have been delivering innovative software solutions to clients for many years. Our mission is to provide custom software solutions that are tailored to ... read Agile Soft Systems Inc reviews & insights
NA50 - 2492012Fremont, United StatesWe offer a wide selection of IT Services for Small and Medium Size Businesses. Inland Empire IT Services provides IT, web design, graphic design, and online marketing services to businesses in the San Bernardino and Riverside counties. We specialize in design, implementation, support and maintenance on every aspect of information systems from web design, through ... read Inland Empire IT Services reviews & insights
$25 - $49/hr10 - 492015Riverside, United StatesInSync Computer Solutions has been managing, maintaining, protecting & securing clients IT environments for 29 years. Our superior and effective managed IT services are the reason our client retention rates are so high. The inSync model includes onsite IT support with a dedicated senior engineer and is inclusive of labor. We provide technical expertise and ... read InSync Computer Solutions reviews & insights
$25 - $49/hr50 - 2491994Laguna Hills, United StatesNeev Systems, founded in September 2016 in Silicon Valley, takes its name from the Sanskrit word 'Neev,' meaning foundation. From our inception, we've aspired to be a "foundation partner for the future" for our customers, partners, and employees. Our journey began with the launch of India operations in November 2016, marking the commencement of our ... read Neev Systems Pvt Ltd reviews & insights
NA50 - 2492016California City, United StatesCloudsa is an IT company providing comprehensive professional software development services (mobile applications development, web-oriented software products, and business software solutions), software integration and updating, support, and maintenance of developed applications. We specialize in writing clean, testable, and structured code using open source tools, technologies, and frameworks. Using design and programming methodologies that emphasize performance ... read Cloudsa reviews & insights
< $25/hr2 - 92015Santa Monica, United StatesSince 1974, WAMS, Inc. has been the trusted IT support partner for law firms in California and beyond, providing them with cybersecurity services, cloud solutions and IT infrastructure consulting. With over 50 years of experience and decades-long partnerships with law firms, we can proudly say that we know your business and its day-to-day operations, which ... read WAMS, Inc. reviews & insights
NA10 - 491974Los Angeles, United StatesDEMANDAY (formerly The Marketing Code) is a global Digital Transformation sales engagement and enablement company focused on executing Sales & Marketing programs by leveraging Technology to drive potential revenue growth for our customers across the globe. We are a one-stop shop for all kinds of Global Technology (Software–Product/Service) & ITES companies who are seeking assistance ... read Demanday intent driven reviews & insights
NA50 - 2492013South San Francisco, United StatesAt Prophecy Technologies, we believe that powerful software solutions are the key to unlocking new opportunities and pushing businesses into the future. Our mission is to be a trusted technology partner that delivers innovative, tailored software products and services to help organizations achieve their strategic goals. Prophecy Technologies was Founded in 2014 and headquartered in ... read Prophecy Technologies reviews & insights
$50 - $99/hr250 - 9992014Irvine, United StatesProphecy is a US-based technologies company, headquartered in Irvine, CA. Our core values are unparalleled quality, effective communication, and transparent pricing. We deliver sustainable growth by solving your biggest people challenges. We work with our clients to design optimal organization structures, roles, and responsibilities. We help them hire the right people and advise them on ... read prophecy Technologies.inc reviews & insights
NA250 - 9992014Irvine, United StatesHeadquartered in Palo Alto, ServiceRocket is a trusted partner to thousands of enterprises including Atlassian, Salesforce and Meta. As a tech-enabled services company, our people and technology reduce complexity and accelerate growth. Customer success is at the heart of what we do. We delight our customers every day. Our diverse team of Rocketeers collaborate across ... read ServiceRocket reviews & insights
$25 - $49/hr2 - 9Palo Alto, United StatesEric Rawn started BCT Consulting, Inc. as a single-person technology consulting firm. Since then, the company has grown to 100+ employees to help support the needs of our clients and business affiliates. Our goal is to keep our clients efficient and effective in their business while maintaining technology and equipment at a price that is ... read BCT Consulting reviews & insights
$25 - $49/hr2 - 91996Fresno, United StatesWelcome to Nearcode! We are the trusted nearshore IT company to boost your teams through staff augmentation and custom product development. We are obsessed with quality in everything we do and are convinced that the success of your organization is our success. Some key points in our history: +𝟯𝟬 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹 𝗜𝗧 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 +𝟭𝟬𝟬 𝘁𝗼𝗽 𝗜𝗧 ... read Nearcode reviews & insights
$50 - $99/hr010 - 49San Francisco, United StatesBrain Studioz is an innovative digital powerhouse that fuels businesses with cutting-edge solutions and exceptional online experiences. Our talented team of web wizards, marketing gurus, and software savants work together to craft tailored solutions that help you soar to new heights and achieve your online ambitions.Building a successful business can be a challenging journey, but ... read Brain Studioz Digital Agency reviews & insights
$25 - $49/hr02 - 9San Francisco, United StatesTopSyntax is a Silicon Valley based Remote Talent Management Company that provides supplemental IT resources to organizations of all sizes. We strive to build long-lasting and trusting relationships that provide the support, guidance, and security necessary to succeed. ... read Topsyntax Inc reviews & insights
$50 - $99/hr50 - 2492018Fremont, United StatesCCS Global Tech is a Certified Minority-Owned Business based in Poway, California. From our beginnings as a one-man operation in 1997, we’ve grown into an international organization of 700+ employees with offices in five countries and an extensive global reach.We specialize in innovative technology solutions, including business intelligence, data analytics, data migration, cloud optimization, cloud ... read CCS Learning Academy reviews & insights
NA10 - 491980Poway, United StatesEmpaxis is a trusted partner specializing in serving the investment management industry. Our mission is to deliver customized, technology-driven outsourcing solutions that optimize operations and foster success for technology providers and investment managers alike. Operating at the intersection of Financial Technology (FinTech), Artificial Intelligence (AI), and Investment Operations, Empaxis offers industry-specific, data-centric solutions aimed at ... read Empaxis reviews & insights
$50 - $99/hr50 - 2492004El Segundo, United StatesBoozDNA stands out as a prominent woman-owned IT consultancy Services firm, renowned for its innovative technology solutions and expert Project Management services. Leveraging over 50 years of combined experience, we specialize in a wide array of areas including Project Management, IT Staffing, Data Solutions, Cloud computing, and ERP services. Our competitive edge lies in our ... read BoozDNA reviews & insights
< $25/hr10 - 492017Irvine, United StatesSapient Logic is a passionate collective of engineers and managers dedicated to providing IT solutions for our valued customers. Our services encompass a wide range, including Software Development, Systems Engineering, Network Engineering, Test and Evaluation, Automated Cloud Deployment, and Artificial Intelligence Modeling. To achieve a harmonious balance between work and leisure, we actively engage in ... read Sapient Logic reviews & insights
< $25/hr10 - 492016San Diego, United StatesWe are a team of technology professionals with more than70 years of combined industry experience. ESR Tech strives to empowerorganizations to outperform competitors with the best tech solutionsavailable inside of their budget. We are committed to building the besttechnology solutions to meet your software business needs. Our teamunderstands how challenging it is to find effective ... read ESR Tech reviews & insights
< $25/hr10 - 492018San Diego, United StatesAt Linutech Solutions, we specialize in providing comprehensive Onsite IT Support across Southern California, along with Remote IT Services nationwide. Whether you need in-person assistance from our experienced field engineers or fast, reliable remote support, we’ve got your IT needs covered. For local businesses in SoCal, our team is ready to tackle hardware issues, configure ... read Linutech Solutions reviews & insights
< $25/hr10 - 492016Santa Ana, United StatesOutsource and Save is a global Business Process Outsourcing (BPO) service provider. We can help business outsource operations such as but not limited to: customer service, technical support, telephone operations, social media marketing, data entry, and so much more. Our focus spreads across various industries. Such as property management, legal industries, health care, trucking or ... read Outsource and Save reviews & insights
< $25/hr50 - 2492021Chatsworth, United StatesDigital Foundry is a boutique software engineering firm headquartered in Tiburon, California, with more than 30 years of experience designing and building complex digital systems for enterprise and government organizations. We specialize in three core areas: custom software development, AI-enabled product and agent system development, and the modernization of mission-critical legacy systems. Our model is ... read Digital Foundry, Inc. reviews & insights
NA50 - 2491992Tiburon, United StatesWhy Digital Foundry, Inc.?
- Passionate builders advancing technical thinking
- Strategy, design, and code in one team
- Trusted for complex, high-stakes software
Using AI Tools
ChatGPT
Founded and incorporated in 2007, Flexton Inc. is headquartered in San Jose, CA with development centers in India. Flexton has been listed 7 times by INC 5000 Inc. magazine in their Fastest Growing companies list in America, serving 50+ enterprise clients. We are a leading professional services company offering a unique product mix that extends ... read Flexton Inc. reviews & insights
$50 - $99/hr50 - 2492007California City, United StatesUsing AI Tools
Claude
ACL Digital, part of the ALTEN Group, is a trusted AI-led, Digital & Systems Engineering Partner driving innovation by designing and building intelligent systems across the full technology stack — from chip to cloud. By integrating AI and data-powered solutions, we help enterprises accelerate digital transformation, optimize operations, and achieve scalable business outcomes. Partner with ... read ACL Digital reviews & insights
NA1,000 - 9,9992003San Jose, United StatesWhy ACL Digital?
- 30 Years of Industry Experience
- 58K Highly Skilled Professionals
- Geographical Presence in more than 30 Countries
Using AI Tools
ChatGPT
Claude
Gemini
Cursor
GitHub Copilot
Boldr AI is an AI consulting and execution partner that helps mid-market enterprises turn fragmented workflows into AI execution systems. Boldr AI works with labor-intensive companies in the $10M–$1B revenue range that want measurable ROI from artificial intelligence, not more dashboards or pilot projects. The Boldr AI methodology diagnoses processes first, redesigns them for AI, ... read Boldr AI reviews & insights
NA10 - 492025Santa Monica, United StatesWhy Boldr AI?
- AI execution, not just strategy
- Built for mid-market businesses
- End-to-end operational accountability
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