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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List of IT Services Companies in California | Top IT Firms in California
IntelliMedia Networks is a global technology consulting and services company with leading streaming, augmented reality, digital, cloud, and security capabilities. We embrace the power of change to create value and shared success for our clients, people, shareholders, partners, and communities. IntelliMedia Networks is an online streaming media company developing products and solutions for mobile, web, ... read IntelliMedia Networks reviews & insights
< $25/hr50 - 249111Orange County, CaliforniaAmazing Experience! They meet all deadlines, and they have very high quality work
- General Dentist
Infracore is a best-in-class Cybersecurity and IT Support Services firm. Founded in 2003, Infracore takes a white-glove approach to providing end-to-end IT infrastructure support, cybersecurity, systems management, network design & security, compliance, desktop support, and strategic decision guidance for mid-size, technology-centric companies. Here are some benefits of using our services: Agnostic We employ a best-in-class ... read Infracore reviews & insights
$150 - $199/hr50 - 2492003San Diego, CaliforniaFantastic. Acted as our in-house IT division from day one.
- Managing Director
B2B Salesify is one of the top B2B lead generation and appointment companies.We caterto enterprise and technology companies across the globe to improve ROI on their spend and shorten the sales cycle with its market insight and demand generation services.
< $25/hr10 - 492010Newport Beach, CaliforniaLead Generation for IT Company
- Organization Manager
Optymize is a worldwide technical talent marketplace that connects companies with verified, remote engineers who have robust technical & communication skills and work in their timezone. A number of leading companies like Sidewalk Labs, RD&X, Yello and Planoly leverage Optymize to scale their engineering teams quickly and cost effectively. Optymize verifies 3 essential qualities: technical ... read Optymize reviews & insights
$50 - $99/hr10 - 492020Santa Monica, CaliforniaBlockchain Development for an entertainment network & Full Stack Development services for Digital Marketing Company
- Risk Management & Loan Portfolio Management
Murano Software specializes in assembling and managing dedicated teams of highly skilled technical professionals to augment your inhouse resources. With corporate headquarters in Los Angeles, CA and software development centers in Europe, Murano offers you the convenience and security of working with a reliable U.S. corporation plus all the benefits of highly affordable development resources.
$25 - $49/hr250 - 9992003Westlake Village, CaliforniaMurano consistently connects us to world-class talent to help us scale our engineering team.
- Appulate, Inc.
Logomentary is your one-stop logo design and branding solution. We are a team of talented graphic designers that specialize in logo, branding, illustration, and web design. We've got your back We offer all kinds of visual content - from logos, business cards, and posters to infographics, flyers and more! You'll be able to find what ... read Logomentary reviews & insights
NA2 - 92020Burbank, CaliforniaI got my idea imprinted in form of a Logo and I am so happy about it.
- Coffee Shop Owner
Perimattic builds production-ready AI products, cloud-native platforms, and full-stack applications that turn business goals into shipped software. Our team blends AI development (LLM apps, RAG search, fine-tuning, MLOps), platform engineering (multi-tenant SaaS, data pipelines, event-driven services), and end-to-end product delivery across web and mobile. We design for security, scale, and speed—from architecture and UX to ... read Perimattic LLC reviews & insights
$25 - $49/hr50 - 2492018San Francisco, CaliforniaSuper satisfied with the AI agent Perimattic built for us.
- Founder
Infobahn specializes in full-lifecycle project and consulting efforts conducted in strategic partnership with some of the world's most prominent companies. Infobahn provides a broad range of IT consulting services leveraging Onsite, Offsite and Offshore models. Our Management Team is experienced having created and nurtured professional services and consulting teams to deliver quality solutions to Fortune ... read Infobahn Softworld Inc reviews & insights
< $25/hr250 - 9991996San Jose, CaliforniaHighly unprofessioanl and unstructured
- Account Manager
Code Calibre is a professional Web Design, Web Development, and Digital Marketing company located in Delhi, NCR. We are a technology-driven organization stepping forward to take the next step towards evolving as one of the top IT companies in India. We began with the aim to deliver high-quality work to our foreign & local clients in ... read Code Calibre reviews & insights
NA50 - 2492014San Francisco, CaliforniaTheir expertise and excellence in Mobile App Development are phenomenal.
- Senior Vice president
𝐀𝐩𝐩𝐢𝐧𝐠𝐢𝐧𝐞 is one of the best awards winning top mobile app development companies in the USA which guarantees your app to win a marketplace. 𝐀𝐩𝐩𝐢𝐧𝐠𝐢𝐧𝐞 designs impeccable web applications that help the company in branding and get featured in App stores. 𝐀𝐩𝐩𝐢𝐧𝐠𝐢𝐧𝐞 develops apps for Android and IOS devices. The company is known for its ... read Appingine reviews & insights
$25 - $49/hr50 - 2492008Los Angeles, Californiasjkjvjsjfjkfkfk
- Michael Oladipupo
Seasia Infotech, a CMMI Level 5 certified software development company, has been empowering businesses with innovative solutions for over two decades utilizing Seasia Agile Model (SAM). This proprietary model, coupled with Seasia's commitment to using cutting-edge tools and technologies, positions us uniquely in the market to deliver unparalleled value and quality in our software solutions. More reasons to choose ... read Seasia Infotech reviews & insights
< $25/hr250 - 9992000Emeryville, CaliforniaOutstanding Website Development Partner for Real Estate Development
- CEO
Using AI Tools
Gemini
Spiral Scout builds AI agent systems and production workflow automation for companies that need more than a proof-of-concept. Founded in San Francisco in 2010, we are a team of 120+ engineers with 16 years of production engineering behind us. We are a certified Temporal Solution Provider, the creators of Wippy.ai, an intelligent runtime built specifically ... read Spiral Scout reviews & insights
$50 - $99/hr50 - 2492010San Francisco, CaliforniaWorking with Spiral Scout was quick, easy, and highly efficient.
- Chief Medical OfficerWhy Spiral Scout?
- Production-grade AI, not demos
- You own the system, zero vendor lock-in
- Temporal-certified, Wippy runtime creators
Since 2008 we have done nothing but work and specialize in Software Engineering Alto refers to ¨high¨ in Spanish. It also refers to Palo Alto, California, where the company was founded, even though the two co-founders are from the other side of the planet, Argentina.
NA50 - 2492014Palo Alto, CaliforniaExcellent team
- Founder
Yellowstone Labs is a software staff augmentation company focused on helping organizations build and maintain reliable engineering capacity without the challenges of constant hiring or team turnover. We provide full-time software engineers who work alongside client teams, contributing directly to product development, system enhancements, and ongoing technical initiatives. Our company operates as a single organization ... read Yellowstone Labs reviews & insights
$25 - $49/hr10 - 492024Signal Hill, CaliforniaYellowstone Labs' AI and offline features transformed our platform, exceeding expectations.
- CTO
Nefter helps U.S. companies scale their engineering teams with top-tier LATAM developers. Our staffing model delivers fully integrated, long-term engineers who work in real time with U.S. teams. Key results: • 40%–50% hiring cost reduction • First vetted candidates delivered in 72 hours • 85% client acceptance rate on presented engineers • 92% annual retention ... read Nefter reviews & insights
$25 - $49/hr10 - 492025San Diego, CaliforniaOutstanding team!
- Carlos Salvador
With headquarters in Bolivia and a presence across Latin America, we provide nearshore staff augmentation services to help businesses scale with confidence. Our engineers specialize in software development,QA, DevOps, and more.
$25 - $49/hr1,000 - 9,9992001New Jersey, New JerseyA seamless extension of our internal team with talent that consistently exceeds expectations.
- Former Product Engineering Senior Director
As a leading software development company, Matellio has established itself as a trusted partner for businesses across industries worldwide. Our journey began in 2014 with a small team of 25 passionate developers focused on providing custom software development services to startups and small businesses. We started exploring ways to create innovative technological solutions. As we ... read Matellio Inc reviews & insights
$50 - $99/hr50 - 2492014San Jose, CaliforniaGreat Shopping Stop
- Research Student
We provide strategy, design, and development services for top startups and global enterprises. Our bread and butter is product strategy, mobile and web applications, UX/UI design, front-end web development, back-end infrastructure, and server support. Our core methodology is rooted in agile and is a client-centric, zero-waste development process that delivers immediate and long-term business value. ... read VentureDevs reviews & insights
NA50 - 2492016Los Angeles, CaliforniaGot what we needed....and more!
- Co-Founder
Roweb is a custom software development company with 20+ years of experience helping global clients build scalable digital products and high-performing development teams. From startups to large enterprises, we specialize in long-term partnerships that support business growth through tailored web and mobile solutions, automation tools, and digital platforms. In 2025, Roweb joined Sirma Group — ... read Roweb Development reviews & insights
NA50 - 2492004NYC, New YorkExcelent
- General Manager
Using AI Tools
ChatGPT
Systango excels in IT services with 1,000+ projects in 25 countries. Our 250+ experts drive 40% productivity gains. Our cloud-based solutions have led to cost reductions of up to 50%. Elevate your digital presence while maintaining top-tier security and scalability with Systango!
$25 - $49/hr250 - 9992007Tysons Corner, VirginiaPositive experience with Systango
- Project OfficerWhy Systango Technologies?
- 450 Plus Successful Digital Projects Delivered
- More Than 350 Plus Skilled Engineers Worldwide
- 18 Plus Years of Digital Engineering Expertise
American Web Coders is one of the prominent website design and development companies based in the USA. A company has achieved numerous awards by delivering top-quality solutions across the world.
NA10 - 492012Los Angeles, CaliforniaThey delivered a stunning website that boosted my SEO and user engagement—worth every penny!
- Marketing Manager
Using AI Tools
- ChatGPT
GeekyAnts is an AI-powered digital product engineering and consulting company helping startups, enterprises, and Fortune 500 brands build scalable, future-ready digital solutions. Since 2006, we have delivered 800+ successful projects for 550+ global clients across healthcare, BFSI, retail, logistics, education, and enterprise technology.We help businesses accelerate digital transformation through strategy, design, engineering, and AI-led innovation.What ... read GeekyAnts reviews & insights
$25 - $49/hr250 - 9992006San Francisco, CaliforniaVery good partner for software development
- Ketan AnandWhy GeekyAnts?
- Strategic Problem Solvers
- AI-Native, Enterprise-Ready
- Trusted Long-Term Partners
Altoros, with headquarters in the United States, operates major development centers in Argentina and Poland. This enables the company to offer competitive rates, align with different time zones, and provide high communication and technological skills, making it a top choice for customers.Take your software products to a completely new level and maximize ROI with Altoros. ... read Altoros Labs reviews & insights
$50 - $99/hr250 - 9992001Pleasanton, CaliforniaI'm really impressed
- Web Developer Specialist
Based in San Diego, Tateeda is a distinguished custom software development firm and staff augmentation provider. Our impressive talent pool includes more than 100 seasoned engineers. We specialize in assisting companies across various high-tech and business sectors in crafting impactful and scalable software solutions. Our dedicated team is committed to bringing your vision to life ... read TATEEDA GLOBAL LLC reviews & insights
$50 - $99/hr50 - 2492013San Diego, CaliforniaSoftware Development For A Pharmacy Network
- Maryna Bizhikian
Nextware delivers high-quality development, IT and business process services through its team of technically skilled, agile and responsive professionals.Nextware delivers high-quality development, IT and business process services through its team of technically skilled, agile and responsive professionals.Nextware strives to be your most trusted and recommended partner – the one you rely on to get the ... read Nextware Technologies reviews & insights
$100 - $149/hr50 - 2492006Santa Monica, CaliforniaHighly recommend them!
- President and CEO
ETEAM is a seasoned digital product agency specializing in transformative growth for different types of businesses, from VC-backed startups to the largest company in the world, for the last decade. We're best known for translating the complex world of digital development into clear and easy-to-understand processes – which results in building better, more cost-effective applications ... read ETEAM reviews & insights
$50 - $99/hr50 - 2492016Irvine, CaliforniaA terrific experience with a contracted engineering team
- Group Product Manager
Technology Mindz is a cutting-edge IT service and solution provider that empowers enterprises to reshape their businesses in the digital era. With over a decade of expertise and innovation in design, development, and support, we serve as a comprehensive solution for enterprises seeking to overcome their critical IT challenges.
$25 - $49/hr50 - 2492012Cupertino, CaliforniaThe IT services provided by Technology Mindz are of a high standard.
- Web developer
DemandDynamics offers On Demand Services for Dynamics 365 customers. Our On Demand Services is a Pay-as-you-Use engagement model which offers our customers Continuous Engagement and On Demand Execution. Our array of Dynamics 365 services include Advisory, Development, Customization, Integration, and Maintenance.
NA50 - 2492020Irvine, CaliforniaIt was a great experience working with DemandDynamics for Dynamics CRM Implementation
- DemandBlue
Secure Techies is a trusted Managed IT Service Providers in Los Angeles, California. We give the best quality resources and labor to ensure your network, devices, and systems for your business. For more, visit our website. Secure Techies
NA10 - 49Woodland Hills, California
ISSQUARED, Inc. is an IT Infrastructure and Security company that was founded in 2010. We deliver Infrastructure Technology Solutions that can include a mix of Networks, Server/Storage, Operating Systems, Databases, Middleware, Enterprise Applications Infrastructure Stack, and Virtualization, We deliver IT Managed Services to support the IT Infrastructure, and operate a Security Operations Center for our ... read ISSQUARED INC reviews & insights
NA250 - 9992009California City, California
Zoltis Technologies is a Los Angeles-based company that offers computer support, help desk remote support, and expert-managed services. With over 20 years of experience designing software and information systems for small businesses, we use the industry-standard network, workstation, and server remote management technologies to monitor and manage your small business's overall performance, productivity, and security ... read Zoltis Technologies reviews & insights
NA2 - 9Los Angeles, California
CyberProof is a security services company that intelligently manages your incident detection and response. Our advanced cyber defense platform enables operational efficiency with complete transparency to dramatically reduce the cost and time needed to respond to security threats and minimize business impact. SeeMo, our virtual analyst, automates and accelerates cyber operations by learning and adapting ... read CyberProof reviews & insights
$25 - $49/hr50 - 2492017Aliso Viejo, California
Digital Shadows minimizes digital risk by identifying unwanted exposure and protecting against external threats. Organizations can suffer regulatory fines, loss of intellectual property, and reputational damage when digital risk is left unmanaged. Digital Shadows SearchLight™ helps you minimize these risks by detecting data loss, securing your online brand, and reducing your attack surface. To learn ... read Digital Shadows reviews & insights
$25 - $49/hr10 - 492011San Francisco, California
Cyber Defense Group (CDG) is a focused cyber security specialist that provides maximum defense using exceptional knowledge and the most advanced technology against today's advanced threats. We are the trusted security advisor to many leading organizations across the globe, working with our clients to deliver a holistic approach to cyber security.
< $25/hr10 - 492016Los Angeles, California
LA Networks helps large and small organizations understand, adapt, implement and evolve network infrastructure technologies, cyber security solutions, and managed IT services. We are an authentic, engineering-first organization that stays true to this identity. Technology excites and intrigues us and we never stop working to master the latest innovations from our key partner, Cisco. For ... read LA Networks reviews & insights
$25 - $49/hr10 - 491997Los Angeles, California
Frontline is a top-ranked Managed IT Service Provider in Los Angeles that offers a comprehensive suite of managed services, including network management, cybersecurity, cloud solutions, data backup, and IT consulting. https://www.frontlineinc.com With Frontline as your trusted managed IT services provider, you are guaranteed a robust and efficient technology infrastructure for your business. Our managed IT services is designed to ... read Frontline, LLC - Managed IT Services reviews & insights
NA10 - 492010Los Angeles, California
Crimson IT (CIT) is all about customer service. We promise that you will fall in love with our IT support. While our competitors focus on technology and ignore the person using the technology, we focus on both. Customers appreciate the fact that we are experts with technology, but they love us because we treat them ... read Crimson IT reviews & insights
$25 - $49/hr10 - 492011Los Angeles, California
FPA Technology Services, Inc. is the preeminent outsourced IT service provider for growing businesses in the greater Los Angeles area specializing in working with Registered Investment Advisors, CPA's and Business Managers, Manufacturers and Distributors, and Non-Profits. As a single source for all the technology services an organization may need, FPA focuses on assisting clients to ... read FPA Technology Services reviews & insights
$25 - $49/hr10 - 491991Los Angeles, California
Cyber-confidence is our Mission. Trust, transparency, accountability, technology, skills and experience together in one, harmonized process. We integrate Managed Security Services with IT teams and Service Providers. The latest in AI, Machine Learning and Cloud technologies allow us to purpose-build AI-based software that keep costs low and quality high. In development for over a decade, ... read ICE Cybersecurity reviews & insights
< $25/hr2 - 92016San Diego, California
Here at Deloitte, we are continuously evolving how we work and how we look at marketplace challenges so we can continue to deliver measurable, sustainable results for our clients and our communities.
< $25/hr50 - 2492001San Diego, California
Using AI Tools
- ChatGPT
- Gemini
IntelliGRC- Horizon.ai
- Vanta GRC
RSI Security helps organizations simplify cybersecurity and compliance in complex, regulated environments.Businesses today face increasing pressure to protect sensitive data while meeting evolving regulatory requirements. RSI Security provides full-lifecycle support across assessment, remediation, and ongoing security maturity, helping organizations reduce risk and maintain compliance with frameworks such as PCI DSS, HIPAA, SOC 2, CMMC, and ... read RSI Security reviews & insights
NA10 - 492008San Diego, CaliforniaWhy RSI Security ?
- On-demand security assessments
- Compliance across PCI, HIPAA, CMMC
- Clear guidance, not just reports
Let’s be clear, while we’ll gladly come in and fix what’s broken, we’d prefer that you never experience the loss of business continuity that comes from IT troubles. At Wendego, our business model is based on relentlessly working to prevent system failures or loss of data that can cost your company in the long run. ... read Wendego IT Solutions reviews & insights
< $25/hr2 - 92006San Diego, California
SOCBOX IS A TEAM OF WORLD-CLASS CYBERSECURITY EXPERTS DEDICATED TO HELPING YOU PROTECT YOUR COMPANY. WE COMBINE A STATE-OF-THE-ART SECURITY OPERATIONS CENTER (SOC) WITH THE BEST CYBERSECURITY TOOLS AND MANAGED SECURITY SERVICES AVAILABLE, DEPLOYED RAPIDLY TO ANY SIZE ENVIRONMENT AT A REDUCED COST.
< $25/hr10 - 49San Diego, California
AttackIQ, a leader in the emerging market of continuous security validation, built the industry’s first platform that enables red and blue teams to test the effectiveness of their security controls and staff. Our platform supports the MITRE ATT&CK Matrix, a curated knowledge base and model for cyber adversary behavior used for planning security improvements and ... read AttackIQ reviews & insights
< $25/hr50 - 2492013San Diego, California
Network Titan was founded in 2006 by Mike Hughes because he could no longer find purpose working at AT&T. Mike was a Senior Tier III Network Engineer. Rising into management at a company that size meant lots of meaningless paperwork and bureaucracy. Mike likes to help people, and demystifying technology for small businesses in San ... read Network Titan reviews & insights
< $25/hr2 - 92006San Diego, California
We specialize in server and workstation installation, and IT support for small medium business in San Diego area and surroundings. We have been helping local small businesses expand and upgrade their existing network. Our typical customer has 5 to 50 workstations and 1 to 10 servers depending on the size of their network, and they ... read Pinnacle Access reviews & insights
< $25/hr2 - 91989San Diego, California
Logically is the leading provider of Managed IT Services to small and midsize organizations. We help our customers leverage the power of information technology to achieve their goals by becoming their trusted IT ally. Since 1999, we have made IT management easy and secure for hundreds of corporations, healthcare organizations, non-profits and public sector agencies. ... read Logically reviews & insights
< $25/hr250 - 9991999San Diego, California
AUSGAR is a company of smart, innovative technical team members who can out-think problems faced by our customers in the cybersecurity, experimentation and engineering services marketplace. Specializing in security engineering and accreditation, we protect devices, networks and systems. We successfully execute experimentation and exercises to transition technology to the fleet expeditiously. We also provide a ... read AUSGAR Technologies reviews & insights
< $25/hr50 - 2492003San Diego, California
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