Zepko
Guildford, England, United Kingdom
We're no heroes
Founded Year: 2003
Company Size: 10 - 20 Employees
Industry: Computer & Network Security
Technologies: Route 53, Outlook, DigitalOcean, Mobile Friendly, WordPress.org +8 more
Cybersecurity Companies Directory
Find Top Cybersecurity Companies & MSSPs
Browse verified security providers across every category MSSPs running 24/7 SOC monitoring, MDR and incident response specialists, penetration testing firms, and GRC compliance consultants. Filter by state, industry and company size to find the right partner.
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ZeroIn
San Rafael, California, United States
ZeroIn specializes in setting up and supporting businesses with remote office environments across the country. We provide helpdesk, network security and design, cloud solutions, VoIP phone systems, and VCIO services to small and medium-sized businesses.
Company Size: 20 - 50 Employees
Industry: Information Technology & Services
Technologies: Autotask, Google Tag Manager, Google Analytics, Linkedin Marketing Solutions, Bootstrap Framework +3 more
dotnet
Elmore, Ohio, United States
dotnet Technologies is an Information Technology & Services company based in Elmore, Ohio, founded in 2010. It specializes in Managed IT Solutions, focusing on helping businesses in Northwest Ohio manage their IT infrastructure efficiently and securely. The company has transitioned from a traditional break-fix IT service provider to a leading Managed Service Provider (MSP), emphasizing a people, process, and communication philosophy.
Founded Year: 2010
Company Size: 20 - 50 Employees
Industry: Information Technology & Services
Technologies: Sendgrid, Outlook, Splunk, Render, Sisense +3 more
enSilo
San Francisco, California, United States
enSilo is a cybersecurity company that specializes in advanced endpoint security solutions. Its platform automates detection, prevention, and real-time response to sophisticated malware and ransomware threats. enSilo offers unique post-infection real-time blocking capabilities, allowing for the containment of malicious activities on compromised devices. The technology integrates next-generation antivirus, application communication control, automated endpoint detection and response, threat hunting, incident response, and virtual patching, all managed through a single lightweight agent compatible with Windows, Linux, and macOS.
Founded Year: 2014
Company Size: 10 - 20 Employees
Industry: Computer & Network Security
Technologies: Salesforce, Sendgrid, Android
nGuard
Charlotte, North Carolina, United States
nGuard is a cybersecurity services firm based in Charlotte, North Carolina, founded in 2002. With over 100 years of combined experience, the company provides advanced security services to organizations around the world, including North America, South America, Europe, Asia, and Australia. nGuard is recognized as a national leader in information security, helping clients achieve and maintain compliance with critical regulations and best practices.
Founded Year: 2002
Company Size: 20 - 50 Employees
Industry: Computer & Network Security
Technologies: Salesforce, Outlook, Amazon AWS, WordPress.org, Gravity Forms +15 more
What We Cover
Types of Cybersecurity Companies in Our Directory
Whether you need a cybersecurity company near me, a national MSSP, or a specialized compliance firm our directory covers every segment. Browse our cybersecurity MSP database with 30,000+ MSSPs, MDR providers & SOC companies or explore our dedicated MSSP list for managed security service providers. To see the best-known vendors first, read our list of the top 100 cybersecurity companies. You can also browse managed IT service providers who bundle security with IT, or filter by industry and company size to find the exact fit.
Managed Security Service Providers (MSSP)
MSSPs deliver 24/7 SOC monitoring, SIEM management, threat detection, and incident response on a subscription basis. Ideal for SMBs and enterprises that need continuous security without building an in-house team.
Browse MSSPs →Penetration Testing Companies
Pentest firms simulate real-world cyberattacks network, web app, social engineering, and red team ops to identify vulnerabilities before attackers do. Many serve healthcare, finance, and government sectors.
Find Pentest Firms →Endpoint Detection & Response (EDR)
EDR vendors protect laptops, servers, and mobile devices from malware, ransomware, and zero-day threats. Key players include firms specializing in AI-driven threat hunting and behavioral analytics.
Browse EDR Companies →Cloud Security Companies
Cloud security specialists secure AWS, Azure, and GCP environments through CSPM, CASB, and zero-trust architecture. Critical for businesses migrating workloads or running hybrid infrastructure.
Browse Cloud Security →Incident Response & Forensics Firms
IR firms respond to active breaches, contain damage, perform root cause analysis, and conduct digital forensics. They help organizations recover faster and harden defenses post-incident.
Find IR Firms →GRC & Compliance Consultants
Compliance firms help businesses meet HIPAA, PCI-DSS, SOC 2, ISO 27001, NIST, and CMMC requirements. They conduct gap assessments, audits, policy development, and ongoing compliance management.
Browse Compliance Firms →Find Cybersecurity Companies by Business Size
Security needs vary by company size. Use our employee size filter to find the right-fit vendor from boutique firms serving small businesses to enterprise-grade MSSPs with 500+ staff.
Find Cybersecurity Companies Near Me
Looking for a local cybersecurity company near you? Our directory covers verified firms across all 50 US states. Filter by state to find cybersecurity companies in your city or region.
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Frequently Asked Questions
What are the top cybersecurity companies in 2026?
Cybersecurity providers fall into distinct categories, and the right one depends on what you need. MSSPs run 24/7 SOC monitoring and managed detection and response on an ongoing contract. Penetration testing firms deliver point-in-time assessments. Incident response specialists handle active breaches. GRC consultancies manage compliance frameworks like SOC 2, HIPAA and PCI DSS. Use the filters above to browse verified providers in each category by state, industry and company size.
How do I find cybersecurity companies near me?
Use our directory to find cybersecurity companies near you by filtering your state or city. We cover verified cybersecurity firms across all 50 US states from local boutique MSSPs to regional SOC providers. Simply select your state from the filter above to see companies in your area with full contact details.
Which are the best cybersecurity companies in the USA?
There is no single best provider it depends on your industry, compliance obligations, company size and whether you need ongoing monitoring or a one-time assessment. A 40-person healthcare practice with HIPAA requirements needs something different from a 2,000-person manufacturer with OT networks. Start by identifying the discipline you need, then filter this directory by state and company size to build a shortlist of three to compare.
What is the difference between an MSSP and a cybersecurity company?
An MSSP (Managed Security Service Provider) is a type of cybersecurity company that provides ongoing, managed security monitoring on a subscription basis 24/7 SOC, SIEM, and threat response. Broader cybersecurity companies may sell products, conduct one-time penetration tests, or provide consulting without ongoing management.
What services do cybersecurity companies typically offer?
Common services include: 24/7 SOC monitoring, penetration testing & vulnerability assessments, SIEM & threat intelligence, endpoint detection & response (EDR), identity & access management (IAM), cloud security (AWS/Azure/GCP), compliance support (HIPAA, PCI-DSS, SOC 2, CMMC), and incident response & forensics.
How do I choose the right cybersecurity company for my business?
Evaluate vendors based on specialization (network vs. cloud vs. compliance), certifications (CISSP, ISO 27001, SOC 2), industry experience (healthcare, finance, government), SLA response times, and company size. Use our directory filters to narrow by state, employee size, and industry to shortlist the best cybersecurity companies for your specific needs.
What certifications should a cybersecurity company have?
Key certifications include CISSP, CISM, CEH, CompTIA Security+, ISO/IEC 27001, SOC 2 Type II, PCI-DSS QSA, and FedRAMP authorization. Vendor-specific certs from CrowdStrike, Palo Alto Networks, Fortinet, and Microsoft are strong indicators of technical expertise.