Top IT Services Companies in California

OC Security Audit provides CISO-led cybersecurity audits, compliance readiness reviews, risk assessments, Microsoft 365 and Azure security reviews, firewall/VPN/Wi-Fi/segmentation audits, vulnerability management guidance, cyber insurance readiness, incident response readiness, and vCISO advisory services for businesses in Irvine, Orange County, Los Angeles County, and Southern California. Led by Ali Hassani, CISO, the firm brings 25+ years ... read OC Security Audit reviews & insights

Clymin is a data scraping-as-a-service AI company. We extract information from web and mobile applications by leveraging AI and convert it into structured data. Our proprietary technology allows us to effectively extract and parse data at scale. We can provide data in the desired formats for customers, such as CSV, JSON, S3 upload, API integration, ... read Clymin reviews & insights

VFIX Communications is a trusted managed IT services provider serving businesses throughout the San Francisco Bay Area. We help small and midsize organizations improve security, reduce downtime, and streamline daily operations through reliable and comprehensive IT support. Our team works closely with professional services firms, nonprofit organizations, medical and dental offices, and multi location businesses ... read VFIX Communications reviews & insights

Triphen Technologies delivers trusted hospitality IT services and cybersecurity solutions built for restaurants, bars, nightclubs, and hotels. From managed IT support services to cloud managed IT for hospitality, our California-based team helps guest-facing brands scale confidently, reduce downtime, and protect critical data.

NexInfo is a leading consulting firm established in 1999, delivering expert guidance to businesses of all sizes—from startups and small enterprises to Fortune 1000 organizations. We help companies achieve Operational Excellence through a powerful combination of business process expertise and software consulting services. Our strong domain knowledge spans Enterprise Resource Planning (ERP), Product Lifecycle Management ... read NexInfo reviews & insights

24hourtek provides proactive managed IT services for SMBs and nonprofits across the San Francisco Bay Area. The company focuses exclusively on business IT, delivering managed IT support, help desk services, cybersecurity, and long-term IT strategy. Its approach emphasizes secure systems, operational efficiency, and reliable day-to-day IT operations, supported by standardized processes and automated IT operations ... read 24hourtek reviews & insights

Chiron IT is a private IT consulting company that specializes in digital transformation and business process automation. With a focus on industries such as finance, healthcare, retail, and government, the company provides tailored cloud technology, data migration, cybersecurity, and software development solutions. Chiron IT helps businesses streamline operations, improve efficiency, and reduce operational costs by ... read Chiron IT reviews & insights

Enhance your IT operations with AI Managed IT Services. Based in Los Angeles, we provide reliable, responsive IT support designed to keep your business running efficiently. Our services include 24/7 system monitoring, advanced network security, and proactive technology management. With a strong focus on service quality and client satisfaction, we help minimize technical disruptions so ... read AI Managed IT Services reviews & insights

Integrate end to end credit and payment solutions into your business processes using our modern card issuing platform. From global enterprises to booming startups, innovators count on Marqeta. Industry leaders across on-demand delivery, expense management, retail, digital banking, and more use Marqeta to deliver exceptional customer card experiences that elevate their brands and build lasting ... read Marqeta reviews & insights

CrowdStrike (Nasdaq: CRWD), a global cybersecurity leader, has redefined modern security with the world’s most advanced cloud-native platform for protecting critical areas of enterprise risk — endpoints and cloud workloads, identity and data. Powered by the CrowdStrike Security Cloud and world-class AI, the CrowdStrike Falcon® platform leverages real-time indicators of attack, threat intelligence, evolving adversary ... read Crowdstrike reviews & insights

SentinelOne is the world's leading AI-powered cybersecurity platform. The SentinelOne Singularity platform, built on the first unified Data Lake, is revolutionizing security operations, with AI, solving use cases across Endpoint Protection, SIEM, Cloud Security, Identity Threat Detection and 24x7 Managed Threat Services. SentinelOne empowers the world to run securely by creating intelligent, data-driven systems that ... read Sentinelone reviews & insights

The financial world is broken. Outdated systems, sky-high fees, fraud everywhere. We’re here to fix it. Nellcorp builds the future of payments and banking - seamless, secure, and built for growth. We work with banks and fintechs to drive innovation and scale while keeping operations compliant and safe from cyber threats.

Clare Computer Solutions (CCS) is a San Ramon–based managed IT services and cybersecurity provider supporting organizations throughout the San Francisco Bay Area. Founded in 1980, CCS helps businesses modernize, secure, and streamline their technology environments through reliable IT management, strategic guidance, and responsive support. With more than 35 years of industry experience, the company delivers ... read Clare Computer Solutoins reviews & insights

Treeline is a next-gen IT, security, and compliance provider backed by Andreessen Horowitz. Built for businesses that want more from their IT partner. The traditional managed IT model wasn't designed for the speed, complexity, and security demands businesses face today. Reactive ticket queues, inconsistent response times, and fragmented tooling make it difficult for providers to ... read Treeline reviews & insights

Technology should drive growth, not create risk, downtime, or constant fire drills. For over 25 years, Acorn IT Services has helped businesses eliminate IT instability, reduce cybersecurity exposure, and scale with confidence through fully managed IT, cloud, and security solutions. We serve mid-sized organizations that cannot afford downtime, compliance gaps, or reactive IT. What We ... read Acorn IT Services reviews & insights

PayNearMe builds technology to transform the payment experience for businesses and their customers. With PayXM™, the industry’s first platform purpose-built for Payment Experience Management, every touchpoint of the payment journey is simple—driving satisfaction, accelerating payments, and lowering the total cost of acceptance. A single platform, contract and integration supports all major payment types and channels, ... read PayNearMe reviews & insights

CMMC IT Support is a U.S.-based firm specializing in Cybersecurity Maturity Model Certification (CMMC) Level 2 compliance for Department of Defense contractors. They offer comprehensive services, including gap analysis, documentation, implementation, and ongoing managed IT support. Their structured approach ensures clients meet all 110 practices and 320 assessment objectives required for certification. With hands-on assistance ... read CMMC IT Support reviews & insights

Accorp Partners is a CPA-led consulting firm providing cybersecurity, compliance, and audit services, including SOC 1, SOC 2, SOC 3, ISO, HIPAA, GDPR, and CMMC. We support startups and enterprises in achieving global compliance standards.

ABSO Technologies is a full-service Managed IT Services provider dedicated to delivering reliable, secure, and scalable technology solutions for businesses, municipalities, and non-profits across Northern California. Our core services include network management, cybersecurity, cloud solutions, data backup and recovery, help desk support, VoIP systems, and structured cabling. We take a proactive approach to IT by ... read ABSO Technologies, Inc. reviews & insights

Since our inception in 2001, we have delivered consistent and reliable expert IT support to small and medium-sized businesses in San Diego County. We leverage our experience, status as a partner with key vendors like Microsoft® and VMware®, and our proven ability to provide full-service systems integration, support and maintenance to support all of your ... read Kazmarek Technology Solutions, Inc. reviews & insights

Elevance Systems is a 100% healthcare-focused IT services company dedicated to building secure, resilient, and digital-first IT environments for healthcare organizations. With over a decade of experience in healthcare IT and a strong global presence across North America, Central America, UAE, and India, Elevance Systems supports health systems, payers, clinical networks, and physician groups in ... read Elevance Systems reviews & insights

Rollout AI provides growing businesses with a fully managed, AI-native IT department. Founded by operators from Google, DeepMind, and Apple, we bring the strategic rigor and modern tooling of top tech companies to professional services firms — law practices, financial services, property management, and growing SMBs. We handle everything a traditional MSP does — helpdesk, ... read Rollout AI reviews & insights

I apply my technical skills and passion for AI integration and security to protect data and networks from malicious attacks. I have years of experience in conducting vulnerability assessments, penetration testing, and ethical hacking for various clients and industries, using Red Hat tools and methodologies. I have configured and deployed multiple AI Forges. I hold ... read DOD Cyber Consulting LLC reviews & insights

BrightWorks IT is a managed IT services provider (MSP) built by uniting respected local IT companies across six offices nationwide. We deliver proactive managed IT support, cybersecurity, cloud solutions, backup & disaster recovery, IT consulting, and compliance services to small and mid-sized businesses with 20 to 500 employees. Our clients span healthcare, legal, manufacturing, nonprofit, ... read Brightworks IT reviews & insights

KaufmanIT is a reliable IT solutions provider based in Irvine, CA, offering advanced technology services for businesses of all sizes. Our expertise includes IT consulting, cybersecurity, cloud solutions, and managed IT services to ensure smooth operations and strong data protection. With a customer-focused approach, we help businesses improve efficiency, strengthen IT infrastructure, and support long-term ... read KaufmanIT Inc. reviews & insights

Fidelis Security® is the industry innovator in proactive cyber defense, safeguarding modern IT for global enterprises with proactive XDR , NDR , EDR and CNAPP platforms. Our team of experts come with years of experience and strive towards making cybersecurity easy for you.​

Reliable managed IT services provider offering 24/7 IT support, cybersecurity, cloud solutions, network management, and proactive monitoring for businesses of all sizes. We help companies improve security, reduce downtime, and scale efficiently with expert IT support.

IT Perfection is a managed IT services and cybersecurity-focused technology company serving businesses across Irvine, Orange County, Los Angeles, and Southern California. With more than 25 years of experience under the leadership of Ali Hassani, CISO, IT Perfection helps organizations improve IT reliability, protect business data, reduce downtime, and maintain secure, efficient technology environments.The company ... read ITperfection reviews & insights

Southwest Networks is a managed IT services and cybersecurity provider headquartered in Palm Desert, California, serving small and mid-sized businesses across the Coachella Valley and Inland Empire since 1996. We work with healthcare practices, dental offices, construction firms, financial services, and professional service companies — organizations that depend on technology but don't have the time, ... read Southwest Networks Inc reviews & insights

Our story began with a vision to simplify business communications. With years of experience in VoIP technology, we deliver reliable, scalable solutions tailored for modern organizations. Our team is dedicated to providing seamless connectivity and exceptional service to help your business thrive. We believe in transparency, innovation, and customer focus. Every solution is designed to ... read ringfusion reviews & insights

FraudDefense.io helps businesses protect their websites, ads, and users from fake traffic, bots, and online fraud. In today’s digital world, not all traffic is real. Many businesses lose money because of bots, VPN users, and fake accounts. This is where FraudDefense.io makes a real difference. Our platform is built to detect and stop suspicious activity ... read Frauddefense.io reviews & insights

Treasury Prime is an embedded banking software platform that connects companies to the largest network of banks and product partners so that you can launch new financial products in weeks.

Synctera’s platform gives companies of all sizes the technology infrastructure, sponsor bank connection, and compliance framework they need to launch FinTech or embedded banking products. With a single set of powerful APIs, companies are able to quickly launch and scale products such as debit cards, bank accounts, charge cards, lines of credit, and money movement. ... read Synctera reviews & insights

Searchbug provides data verification and contact intelligence solutions that help businesses improve data accuracy, enhance customer outreach, and maintain reliable customer information. The company offers services including email verification, phone validation, data enrichment, lead generation, and API solutions designed to support businesses with accurate and actionable data.

PrimeSec IT is a trusted Los Angeles-based IT services company specializing in outsourced IT support, cybersecurity, and cloud solutions for small and mid-sized businesses. We provide reliable, remote-managed technology services designed to keep your systems running smoothly, protect your data from cyber threats, and help your team stay productive. No technical jargon, just clear, effective ... read PrimeSec IT reviews & insights

Excelfore is the industry leader in automotive connectivity solutions, providing secure, standards-based Over-the-Air (OTA) updates, in-vehicle networking, and cloud-based device management platforms for Software Defined Vehicles. Trusted by 17+ million vehicles worldwide.

ManageEngine is the enterprise IT management software division of Zoho Corporation, providing comprehensive solutions designed to help organizations manage, secure, monitor, and optimize their IT environments. Since entering the IT management space in 2002, ManageEngine has focused on developing feature-rich, integrated, and cost-effective software that enables businesses of different sizes to simplify complex IT operations ... read ManageEngine reviews & insights

Lucrative AI is an AI-native revenue platform that connects CRM, marketing automation, revenue intelligence, analytics, governance, and intelligent contracting in one unified workspace. Built for sales, marketing, RevOps, and executive teams, Lucrative AI combines Loft for Sales, Loft for Marketing, Revenue Governance, Nexum, and Stratum to automate customer engagement, monitor CRM health, generate executive insights, ... read Lucrative AI reviews & insights

Business PC Support is a premier managed IT services and cybersecurity provider headquartered in Elk Grove, California, serving commercial businesses, healthcare practices, legal firms, and financial organizations throughout Greater Sacramento and Northern California.We deliver 24/7 proactive technology management, help desk support, cloud infrastructure management, and multi-layered Zero Trust cybersecurity protection to eliminate operational downtime and ... read Business PC Support reviews & insights

Aboutsaguna.inSaguna Consulting offer total life cycle technology consulting, AI, cloud, and software engineering services to help modern businesses innovate and grow by delivering enterprise grade trustworthy, scale upable, real time user based digital solutions by a deep driven innovative team working hand in hand along side to reach client business goal.

ClearConverse provides modern business communication solutions, business phone systems, VoIP phone systems, cloud phone systems, cloud telephony, virtual phone systems, and business calling solutions for businesses of all sizes.With ClearConverse, businesses can streamline communication through cloud PBX, business VoIP, virtual numbers, call management, call routing, IVR, auto attendant, call forwarding, voicemail, call recording, call analytics, ... read ClearConverse reviews & insights

Named one of Inc Magazine’s 5000 fastest-growing private companies in America, Alcott Enterprises is an award-winning national information technology and cybersecurity company delivering agile IT strategies, next-generation IT managed services, and elite cybersecurity. Alcott Enterprises’ work has caught the attention of CRN Magazine, which named Alcott Enterprises one of the top 500 Managed Service Providers ... read Alcott Enterprises reviews & insights

Intelecis is an NSA-accredited managed IT services and cybersecurity company headquartered in Fullerton, California. Since 2011 we've helped Southern California businesses — from DoD contractors to professional service firms across Orange County, Los Angeles, San Diego, and the Inland Empire — operate secure, modern, fully managed technology environments. Our specialties include managed IT, cybersecurity, CMMC ... read Intelecis reviews & insights

MARFI Systems is a Santa Monica, California based managed IT, cybersecurity and compliance provider for startups and regulated companies across Los Angeles, Orange County and Southern California.Launchpad bundles proactive managed IT, 24/7 SOC monitoring, endpoint protection, email security, identity, backup and security awareness into one per-user monthly price. Launchpad DIB delivers managed CMMC and NIST ... read MARFI Systems reviews & insights