Top Cyber Security Companies in California
Are you looking for cybersecurity firms in California to help your organization detect, respond, and recover from cyber risks? There are many cybersecurity service providers in California that enable you to develop a roadmap to protect your current environment. In the present scenario of the prevalent online risks, it is crucial to have one of the best cybersecurity agencies in California as your partner that help you align the security strategies with your business goals. Identifying the need, Goodfirms has fabricated a list of the top cybersecurity companies in California that are capable of building defense systems against complex and sophisticated threats.
List of Top Cybersecurity Firms in California
-
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
$200 - $300/hr1,000 - 9,9992011Sunnyvale, California -
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
$200 - $300/hr1,000 - 9,9992013Mountain View, California -
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 Outdated systems, sky-high fees, fraud everywhere.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.
< $25/hr2 - 92010Vallejo, California -
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.
NA10 - 492010California City, CaliforniaWhy Accorp Partners?
- Trusted SOC compliance experts
- Scalable solutions for startups & enterprises
- Client-focused, transparent approach
-
TRM Labs is a blockchain intelligence company that helps financial institutions, crypto businesses, and government agencies detect and investigate crypto-related financial crime and fraud. Every day, we tackle challenges in data engineering, data science, and threat intelligence to advance our mission to build a safer financial system for billions of people.
$50 - $99/hr250 - 9992018San Francisco, CaliforniaWhy TRM Labs?
- On-time delivery and reliable support
- Affordable pricing with high quality
- Strong focus on client satisfaction
-
ESOF, A Next-Generation of Vulnerability Management, Detection and Response Platform. Get in touch with our team today to empower your organization.
NA50 - 2492013San Francisco, California -
Founded in 2022, SecurityGen is a global start-up focused on telecom security. We deliver a soslid security foundation for driving secure Telco digital transformations and ensuring next-gen enterprise intelligent connectivity. Our extensive product and service portfolio ensures complete protection against existing and advanced telecom security threats.
< $25/hr10 - 492022California City, California -
Erbis: Your Tech Powerhouse Erbis is a leading custom software development company empowering global businesses with comprehensive solutions. With 100+ senior-level engineers across 3 offices, we've optimized over $110M in costs for 45+ worldwide clients. Specializing in Supply Chain and Legal Tech industries, we offer services ranging from logistics management to document automation. Our flexible ... read Erbis reviews & insights
$25 - $49/hr50 - 2492012San Francisco, CaliforniaVery Timely and Responsive.
- Anonymous -
Zenmid is a leading IT security service company in the United States that helps small and mid-sized American businesses alike identify potential security threats along with devising vendor/platform-specific turnkey measures to avert those issues. The company takes great pride in its handpicked team of highly qualified computer experts, who possess a wide and diverse experience ... read Zenmid Soutions reviews & insights
NA2 - 9San Jose, California -
HyScaler, a CMMI Level 3 tech consulting group, excels in AI, Blockchain, IT and cloud. They offer scalable solutions across industries, with a diverse team focused on agile problem-solving & innovation. With a successful history of collaborating with elite clients worldwide, HyScaler delivers highly scalable web, mobile, and cloud-based solutions across various industries such as ... read HyScaler reviews & insights
$25 - $49/hr50 - 2492009Santa Clara, CaliforniaA Five-Star Experience with HyScaler
- Camilla Spencer -
At Kindrix Group, we are shaping global growth through AI-driven innovation and intelligent IT solutions. As a trusted technology partner, we help businesses across industries evolve, scale, and lead in a digitally connected world. With expertise in artificial intelligence, automation, cloud, cybersecurity, and data-driven strategies, we create smart, secure, and scalable solutions that deliver real ... read KindrixGroup reviews & insights
$25 - $49/hr10 - 492025California City, CaliforniaMy overall experience was positive and the service delivered what I expected.
- Co Founder at 3D Spot -
Veltec Networks, Inc. is a Silicon Valley Network Consulting and Managed Services Provider serving businesses in the San Francisco Bay Area. Veltec Networks provide a wide range of IT services tailored to meet the requirements of small and medium businesses. In addition to these services, we also offer Virtual CIO functions that functions as the ... read Veltec Networks reviews & insights
$25 - $49/hr10 - 492007San Jose, California -
Rysun Labs is a technology consulting and AI, Data & Digital innovation partner for enterprises, globally. With 7 offices spanning India, USA, South Africa (a proud Level 2 B-BBEE Contributor), and the UK, Rysun accelerates Fortune 2000 customers' data strategy and digital transformation. Our specialized solutions empower Hi-tech, Retail & Ecommerce, and Energy sectors to ... read Rysun Labs Inc. reviews & insights
< $25/hr250 - 9992001Milpitas, CaliforniaRysun Labs Inc. Great service
- Naledi Thandeka Mashego, Managing Director at Black Cherry Media -
Synverse is the next generation global IT Service Provider and Software Development Company. We are among the best IT managed service provider who offers Mobile app development and website development services.
$25 - $49/hr250 - 9992009San Ramon, CaliforniaExcellent app development Company
- Narayana Reddy, Digital Marketing Executive at KartzHub -
Every day at FireEye, we see firsthand the impact of cyber-attacks on real people. This is what inspires us to fulfill our mission to relentlessly protect our customers from the impact and consequences of cyber attacks. FireEye has created a unique learning system. Our real-time knowledge of the threat landscape ensures that our offerings provide ... read FireEye reviews & insights
$25 - $49/hr1,000 - 9,9992004Milpitas, California -
Global IT Services primarily provides staff augmentation solutions across the most critical IT services and skills that are required. We are also an information technology service company providing system design, development and deployment of applications across multiple industry sectors, ranging from government entities to healthcare providers to private businesses. We leverage a diverse scope of ... read Global IT Services reviews & insights
< $25/hr10 - 492011Sacramento, California -
Marvis Technology is an innovative and technology driven company that provides IT consulting and Managed Services for SMB and Enterprise.
< $25/hr2 - 9Los Angeles, California -
As you grow and add locations for your business, it takes time and money to manage your company’s voice and data infrastructure. At Meridian Network Services, our customers take center stage. We make it our business to understand your business. We start by truly understanding your needs so we are equipped to find tailor-made solutions ... read Meridian Network Services reviews & insights
NA2 - 9San Juan Capistrano, 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/hr2 - 92020Santa Clara, 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/hr10 - 492019San Jose, 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.
NA10 - 492017Sunnyvale, 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
NA50 - 2492019Pleasanton, 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
NA2 - 92010Beverly Hills, California -
Using AI Tools
-
Claude
-
ChatGPT
-
Gemini
-
Cursor
-
Google 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/hrFreelancer2024San Diego, CaliforniaWhy Cloud360 Technologies?
- Proven Expertise
- High quality solutions
- Afordable
-
-
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/hr250 - 9992002Orange County, 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 -
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 -
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 -
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 -
Infoguard was founded in the heart of California’s Silicon Valley in 2004 in response to the growing need for top quality services at reasonable rates. Since then many organizations have experienced, with a great level of satisfaction, the technical expertise and quality service provided by our professionals. Our mission is to provide our clients with ... read Infoguard Cyber Security reviews & insights
$25 - $49/hr10 - 492004San Jose, California -
Infortech provides Managed IT Services and Tailored Cyber Security, Private and Hybrid Cloud Solutions. Our services cover planning, design, implementation, management, and support of all aspects of IT Infrastructure, including Networks, Data Security Systems, Servers, Desktops, VOIP PBX Systems, and Internet Connectivity Services. We are a Microsoft MidMarket Cloud Solutions Partner and a Managed Security ... read Infortech reviews & insights
$25 - $49/hr10 - 491999San Jose, California -
In 2012, Jimmy Tran founded JT Solutions, which evolved into Level Up MSP. We are a leading provider of versatile, comprehensive Managed IT Services in San Jose, CA. “We care” about your business success and will help improve your IT operations to positively affect your bottom line. Think of us if you’re looking for a ... read Level Up MSP reviews & insights
NA2 - 9San Jose, California -
CyberCorp Forensics is a veteran-owned boutique digital forensics firm that specializes in computer forensics, mobile forensics, expert testimony, data recovery, incident response, and eDiscovery. We are located in the Greater Sacramento area and provide services to clients throughout California and the nation.
< $25/hr2 - 9San Francisco, California -
You need technology, and not just for operational continuity – it should be an essential piece in your growth strategy. With technology changing at such a rapid rate, what’s available to you is always changing and it’s hard to keep up with all the cost saving and competitive enhancing options for your company. That’s why ... read SugarShot reviews & insights
$25 - $49/hr2 - 9Los Angeles, California -
We are Los Angeles-based IT support company that specializes in small businesses. We provide onsite and remote IT services, such as network support, fixing IT issues, IT infrastructure, Managed IT security, and more. To talk with IT experts call now 213-261-3998. DCG has a reputation stretching back to 27+ years and 176+ clients with contracts ... read DCG Technical Solutions, LCC reviews & insights
NA10 - 491993Los Angeles, California -
SoCal IT Support has been providing Computer Support and IT support to Orange County Businesses since 1994. We resolve all Computer and Network problems related to keeping your business up and running at an affordable cost. We provide a wide variety of services and products to increase the efficiency and ensure the security of your ... read SoCal IT Support reviews & insights
NA2 - 9Rancho Santa Margarita, California -
KingsGuard is a San Diego Cybersecurity company that specializes in complex and innovative security solutions for companies throughout Southern California. As a collective of highly technical engineers and developers offering decades of security expertise, KingsGuard solves the most complex challenges faced by today’s leading organizations across an ever-evolving digital threat landscape.
$150 - $199/hr2 - 92022San Diego, California -
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
NA10 - 492000San Diego, CaliforniaWhy CMMC IT Support ?
- Trusted cybersecurity compliance & support
- Fast, reliable managed IT solutions
- Expert risk reduction & audit readiness
-
Semantic AI is leveraging cutting-edge computational performance to connect, add value to, and present data and information in ways that augment how human analysts rapidly build understanding and form better decisions. With our deep background in knowledge transfer, Semantic AI has always focused on making humans, not machines, smarter. Powered by a context engine, our ... read Semantic AI reviews & insights
NA50 - 2492001San Diego, California -
Cre8tive Technology and Design’s fundamental goal is to increase your bottom line through operational adjustments and improvements by utilizing the best business systems technology on the market. Our groomed strategists define your goals and current processes to come up with a tailored software solution that meets all of the needs required to move your business ... read Cre8tive Technology and Design reviews & insights
< $25/hr50 - 2492005San Diego, California -
We offer SaaS-based business applications, Cybersecurity, IoT, App development, and Web development services. We celebrate original ideas and develop avant-garde solutions for businesses globally. At Ambsan Technologies, we love to keep our finger on the pulse of technology, bringing you the best and most cost-effective solutions. We are dedicated to providing a professional service that is ... read Ambsan Technologies reviews & insights
$25 - $49/hr50 - 2492022Alamo, California -
Anex Technology is an American Technology company based in Fremont, California. It develops, sells and supports computer-related products and services. We offer refurbished servers and server parts, IT liquidation, remarketing, and asset management services.
NA2 - 92019Fremont, California -
Welcome to WPQode, your go-to platform for mastering WordPress! Launched in 2022, WPQode is dedicated to helping users—both beginners and seasoned professionals—create stunning websites with WordPress. Whether you're starting your first blog, managing a professional business site, or troubleshooting technical issues, we've got you covered with expert advice, detailed reviews, and actionable resources. Our mission ... read Wpqode reviews & insights
NA2 - 92023Mountain View, California -
Capital 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.
< $25/hr2 - 91989Sacramento, California -
SwiftTech 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.
NA50 - 2492001Tustin, California -
Neev 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, California -
DEMANDAY (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, California -
Prophecy 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, California
Confused about which partner to choose?
Let our experts study your requirements and send a curated list of trusted companies.
Get a shortlistWhy Trust Goodfirms
Goodfirms is the world’s leading reviews and ratings company featuring 110,000+ tech companies from across the globe, complete with 80,000+ humanly vetted client reviews, detailed portfolios, hourly rates, employee strength, and more to help you choose your perfect tech partner.
Humanly-Vetted Client Reviews
Our researchers have personally vouched for the authenticity of 80,000+ client reviews by speaking directly with clients, cross-checking project details, timelines, and results to ensure 100% credibility.
Data-Driven Rankings
Data powers our company listings. Every company listed is evaluated based on its expertise, experience, market presence, reviews, and client satisfaction rate, which helps buyers confidently choose the right tech partner.
Global Trust & Recognition
Goodfirms is trusted by 110,000+ businesses in 160+ countries to connect with reliable tech partners. Our reputation is built on 80,000+ verified reviews and rankings you can trust.
Transparency In Detail
From verified client reviews and portfolio highlights to service focus and pricing, Goodfirms provides a 360-degree view of every company, helping 2+ million monthly users find the perfect tech partner.
Trending insights from Goodfirms
Valuable insights from top experts accelerate decision-making.
Cybersecurity Benefits for Business: The 2026 Playbook for Revenue & Growth
Cybersecurity benefits for business in 2026: discover ROI, cost savings, compliance advantages, and how AI-powered security drives revenue, trust, and growth.
Fintech IT Services: Types, Benefits & Top Solutions for Financial Institutions (2026)
Fintech IT services are transforming how banks, insurers, and credit unions operate. Explore types, costs, real-world use cases, and how to choose the right provider in 2026.
Neobank Compliance in 2026: AML, KYC & Regulatory Requirements Explained
Understand how evolving regulations are shaping neobanks in 2026, from AML and KYC requirements to compliance risks and RegTech solutions that help fintechs stay secure, scalable, and audit-ready.