Denver’s booming technology and innovation sectors are drawing national attention. However, that also makes the city a prime target for cyber threats and malicious attacks. As per Kiteworks analysis, Colorado has a risk score of 7.96, making it one of the most vulnerable states in the US for cyberattacks. The state has witnessed a 58.7% surge in financial losses since 2017.
That is exactly why businesses must choose a reliable and efficient cybersecurity firm in Denver. It is no longer an option or a “nice to have” thought for businesses operating here – choosing the best cybersecurity company is critical.
In this blog, we list the top 20 cybersecurity companies in Denver. Each profile offers detailed information about the location, the services they offer, and their websites. That way, you can confidently map your security needs to the right partner.
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Top 20 Cybersecurity Companies in Denver
1. Qualysec
About: Qualysec is a leading cybersecurity firm in Denver offering comprehensive penetration testing and vulnerability assessment services across cloud, web, API, mobile, and IoT environments. Their deliverables align with U.S. frameworks like HIPAA, SOC 2, and PCI DSS, with detailed reports of pen testing.
Based in Bhubaneswar, India, Qualysec has successfully completed over 600 security assessments for 150+ clients across 21+ countries. This cybersecurity agency focuses on delivering precise and compliance-ready security solutions tailored to various industries, including healthcare, fintech, e-commerce, automotive, telecommunication, and more.
Process-driven methodology and thorough manual verification make Qualysec stand out for its dedication to producing zero false positives. Owing to the client-centric methodology, each penetration test and security audit is customized to the client’s unique business model, technology stack, and compliance requirements. Higher relevance, useful insights, and quicker remediation are the results the client gets. Their extensive proficiency in manual penetration testing is one of their most notable qualities; this is an essential element that is frequently absent from scan-heavy or automated testing. That makes Qyalysec a desirable choice for companies looking for a trustworthy cybersecurity firm in Denver.
Location: Serving clients worldwide
Website: qualysec.com
Services Offered:
- VAPT (web/cloud/mobile/API/IoT)
- Compliance testing
- Red teaming
- Source-code review
- Cyber security audit
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2. Datadog
About: Datadog has evolved into a DevSecOps-native security platform, making it a highly popular cyber security agency in Denver. It integrates security monitoring, Cloud SIEM, App/API protection, and infrastructure scanning. This company is perfect for businesses wanting security and operations unified in one dashboard.
Location: Global delivery to Denver (no physical office)
Services Offered:
- Security monitoring
- Red Hat OpenShift
- Google Cloud Monitoring
- Compliance and Cloud SIEM
- SAST & IAST
3. Accedere
About: Accedere is a Colorado-based CPA and cybersecurity firm in Denver known for its technical prowess. They offer SOC 1/2/3 attestation, ISO certification, cloud security assessments, VAPT, along with SCADA/OT evaluations. The firm specializes in blending audit-grade credentials with hands-on technical testing.
Location: Denver, CO
Services Offered:
- SOC audits
- ISO/IEC certification
- Cloud and pen testing
- CSOC services
- Vulnerability assessments
4. Red Canary
About: Red Canary is a leading 24/7 Managed Detection & Response (MDR) company. It focuses on threat detection across endpoints, cloud systems, identities, and SaaS, making it a well-sought cyber security company in Denver.
Location: Denver, CO
Services Offered:
- MDR
- Threat intelligence
- Automated alerting
- Expert response for endpoints
- Security data lake
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5. Dirsec
About: Based in Louisville, CO, DirSec is a well-known cybersecurity firm. They resell over 30 security products, provide penetration testing, cloud and network audits, vCISO, and managed services.
Location: Louisville, CO (but supports clients on-site and remote in Denver)
Services Offered:
- Pen testing
- Compliance audits
- Managed security services
- Cloud data security
- Network protection
- Firewall implementation & optimization
6. EPAM
About: EPAM is a global digital transformation and software engineering firm with a dedicated cybersecurity practice. Their engineering-led approach offers services including threat modeling, DevSecOps integration, and managed security.
Location: Denver, CO
Services Offered:
- Cloud and data security
- DevOps
- Ransomware protection
- Zero trust implementation
- Managed detection & response
7. K3 Technology
About: K3 Technology is a well-known cybersecurity firm in Denver, delivering managed cybersecurity solutions tailored for small and mid-sized businesses. They focus on proactive monitoring, endpoint protection, and secure cloud adoption.
Location: Denver, CO
Services Offered:
- Email security
- IT compliance
- Security assessments
- Office 365 optimization
8. Sekurno
About: Sekurno is a leading cyber security agency in Denver specializing in compliance-driven testing and consulting. They deliver penetration testing, risk assessments, and ongoing security advice for regulated industries.
Location: Denver, CO
Services Offered:
- Web application testing
- Penetration testing
- Security risk assessments
- Compliance consulting (SOC2 Type I/II, DORA, GDPR)
- Source code review
9. Foresite
About: Foresite provides strategic IT and cybersecurity consulting to mid-market companies in Denver. Their services focus on data protection, risk management, and alignment with frameworks such as NIST and ISO 27001.
Location: Denver, CO
Services Offered:
- Risk and compliance assessments
- EDR
- Firewall management
- Google cloud security
- Vulnerability & patch management
10. NewPush
About: NewPush is one of the most reliable IT agencies offering managed cybersecurity alongside web and mobile app development. They pair pentesting and monitoring with tooling rollouts and incident response planning, making them a highly popular cyber security vendor in Denver.
Location: Denver, CO
Services Offered:
- Vulnerability management
- Threat hunting
- Managed detection and response
- Incident response
- Zero trust security
11. Envision IT Partners
About: Envision IT Partners is a Colorado-based managed IT and cybersecurity provider founded in 2003. They offer enterprise-grade secure IT infrastructure tailored for SMBs, featuring proactive cyber risk monitoring and solutions
Location: Denver, CO
Services Offered:
- Managed 24×7 SOC and SIEM
- Firewall and antivirus deployment
- Application infrastructure solutions
- Zero trust security
- Compliance support
12. CP Cyber
About: With headquarters in Denver, CP Cyber is a leading cybersecurity consulting firm specializing in penetration testing, vulnerability assessments, and managed SOC/SIEM services. Their expert team delivers thorough testing and rapid breach response.
Location: Denver, CO
Services Offered:
- Penetration testing (network & application)
- Vulnerability assessment
- Breach recovery
- Cybersecurity consulting
- Compliance mapping (NIST, HIPAA, CMMC)
- SOC/SIEM solutions
13. Ariel IT
About: Since 1996, Ariel IT has combined managed IT and cybersecurity, delivering exceptional services as a top-rated cyber security agency in Denver. They focus on monitoring, patching, firewall deployment, and security awareness training, supporting SMBs with tight infrastructure & compliance tools.
Location: Denver, CO
Services Offered:
- Cybersecurity awareness training
- Network/firewall setup
- Patch management
- Compliance (CMMC, NIST)
14. Applied Tech
About: Applied Tech is a cyber security provider in Denver, offering strategic support in network architecture, endpoint protection, and incident response. They service mid-size enterprises with a focus on resilient infrastructure and rapid recovery.
Location: Denver, CO
Services Offered:
- Regulatory compliance
- Security risk assessments
- Incident response planning
- Cloud integration
- Managed IT support
15. Cyberhill
About: Fyresite is one of leading cybersecurity companies in Denver, offering custom-made solutions in various areas such as data analytics, cloud, and cybersecurity. With 15+ years of experience, Cyberhill ensures enterprises remain secure and scalable.
Location: Denver, CO
Services Offered:
- Identity and access management
- Privileged access management
- SIEM
- Application security
- Gen-AI threat detection
16. Tekkis
About: Tekkis is a cyber security provider in Denver, offering managed IT and advanced cybersecurity solutions. They focus on protecting data-rich environments through endpoint controls, patch management, and tailored security policies.
Location: Denver, CO
Services Offered:
- Ethical hacking
- Penetration testing
- Red team operations
- Network engineering
17. Point Solutions Security
About: Point Solutions Security, a reliable cyber security vendor in Denver, delivers reliable, results-driven cybersecurity tailored for SaaS, government, and enterprise clients. Their expert team offers exceptional services, helping secure your operations with proactive, custom-built strategies.
Location: Denver, CO
Services Offered:
- Penetration testing
- Digital infrastructure security
- Threat intelligence
- Compliance assessments
18. LARES
About: LARES is a reliable cyber security provider in Denver, specializing in governance, risk, and compliance. They offer expert guidance in regulatory alignment, vendor risk management, and targeted penetration testing for cloud and web.
Location: Denver, CO
Services Offered:
- Risk and compliance consulting
- Cloud/web penetration testing
- Red team testing
- Advisory services
- Incident response
19. Coalfire
About: Coalfire is a nationally recognized cyber risk advisory firm with a Denver presence. Their services include penetration testing, compliance assessments (SOC, PCI, FedRAMP), and advisory support for financial, healthcare, retail, and tech & software sectors.
Location: Denver, CO
Services Offered:
- Penetration testing
- Compliance audits
- Cloud security advisory
- Secure application code review
- Red team testing
20. Optiv
About: Optiv is a leading cyber security provider in Denver with an expert team backing their services. They offer services ranging from risk evaluation to managed detection, endpoint controls, and security architecture design rooted in strategic frameworks.
Location: Denver, CO
Services Offered:
- Cyber recovery (CRS)
- Compliance and insider risk management
- Attack and penetration testing
- MDR and co-managed SIEM
- Digital access management
Conclusion
Choosing the right cyber security provider in Denver is about more than just ticking boxes. It’s about finding a partner who understands your systems, your compliance obligations, and your operational needs.
Do you have a healthcare firm needing HIPAA-aligned penetration testing? Is your startup preparing for SOC 2? No matter your security needs, this list will help you choose the right cyber security vendor in Denver.
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FAQs:
Q: How much do cyber security firms charge?
Ans: There is no fixed answer for this question. The charges of cyber security firms vary based on services and the complexity of the tasks. For basic vulnerability scans, prices may start around $2,500–$5,000. Comprehensive penetration testing or MDR services can range from $10,000 to $50,000+ annually.
Q: What is the best cyber security firm?
Ans: The best cyber security firm is one that fits all the check boxes you need. No single agency can be labelled as the best. However, if you need quick yet accurate penetration testing with global expertise and developer-centric reporting, Qualysec is the ideal choice. To know more, get in touch with our experts today!
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