Intruder operates at the forefront of the cybersecurity industry, offering comprehensive vulnerability scanning, management, and remediation solutions. By blending automated scanning with human expertise, they facilitate knowing, understanding, and reducing digital risk efficiently. The industry is filled with companies like Halo Security, e2e-assure Ltd, and CloudPassage, offering distinct services designed to reinforce digital fortresses. Given the increasing sophistication of cyber threats, the sector is progressing towards more advanced, integrated, and efficient security solutions.


Top 21 Intruder alternatives

1. Halo Security

Halo Security is a company that specializes in security testing for the modern attack surface. They offer a range of solutions including firewall scanning, website scanning, technology scanning, server scanning, application scanning, and penetration testing. Their services help organizations gain full visibility into the risk posture of their websites and applications, identify vulnerabilities and security threats, and achieve PCI compliance. With a team of experienced professionals and a comprehensive line of products, Halo Security aims to reduce digital risk and build trust online.


2. e2e-assure Ltd

  • Website: e2e-assure.com
  • Headquarters: Abingdon, Oxfordshire, United Kingdom
  • Founded: 2013
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

e2e-assure.com offers professional cyber security services, specializing in threat detection and response. They provide 24/7 monitoring of Microsoft Defender, with a team of cyber security and Microsoft experts. Their services include security operations center (SOC) services, vulnerability scanning, and cyber security insurance services.


3. CloudPassage

  • Website: cloudpassage.com
  • Headquarters: San Francisco, California, United States
  • Founded: 2009
  • Headcount: 51-200
  • Latest funding type: Acquired
  • LinkedIn

CloudPassage offers server secure software vulnerability management services. Their solutions include file integrity monitoring, server account management, and log-based intrusion detection. They provide a secure cloud configuration and container service registry. The company ensures the privacy and security of their customers' data.


4. Checkmarx

  • Website: checkmarx.com
  • Headquarters: Atlanta, Georgia, United States
  • Founded: 2006
  • Headcount: 501-1000
  • Latest funding type: Acquired
  • LinkedIn

Checkmarx is a developer software company that specializes in software security and application testing. They offer solutions for identifying and remediating security vulnerabilities and compliance issues during the software development process. Their products include Static Application Security Testing (SAST) and Software Composition Analysis (SCA) tools.


5. Webcheck Security

Webcheck Security is a world-class cyber services company that specializes in providing comprehensive penetration testing, vulnerability scanning, advisory services, security awareness training, monitoring and threat hunting, digital forensics, and code review/devSecOps training. They have a team of certified engineers who conduct expert web application, infrastructure, mobile, and WiFi testing. With their technical and executive-level expertise, they guide clients through the cyber landscape, offering peace of mind and improving security hygiene.


6. Holm Security

  • Website: holmsecurity.com
  • Headquarters: Stockholm, Stockholm County, Sweden
  • Founded: 2015
  • Headcount: 51-200
  • Latest funding type: Series Unknown
  • LinkedIn

Holm Security is a cybersecurity company that offers vulnerability management and phishing awareness solutions. Their platform helps businesses identify weaknesses in their web applications and APIs, and offers tailored and automated awareness training to increase employee resiliency. They empower companies struggling to gain insight into their cyber security posture and provide support to mitigate cyber risks.


7. Orca Security

  • Website: orca.security
  • Headquarters: Portland, Oregon, United States
  • Founded: 2019
  • Headcount: 201-500
  • Latest funding type: Series C
  • LinkedIn

Orca Security is a leading provider of cloud security solutions. They offer a comprehensive platform that helps organizations monitor, identify, and remediate misconfigurations across cloud environments. Their agentless platform ensures the security of cloud infrastructure, workloads, data, APIs, and identities. With their purpose-built solution, businesses can detect identity misconfigurations, ensure least-privilege access, and monitor identity hygiene metrics.


8. Acunetix by Invicti

Acunetix is a web application security company that offers automated application security testing services to over 2,300 companies. They provide actionable scan results in minutes, helping businesses identify and fix vulnerabilities that put them at risk. With features like AcuSensor Technology and AcuMonitor Technology, Acunetix prioritizes high-risk vulnerabilities and eliminates false positives. They serve various industries including IT & Telecom, Government, Financial Services, Education, and Healthcare.


9. DivvyCloud

  • Website: rapid7.com
  • Headquarters: Arlington, Virginia, United States
  • Founded: 2000
  • Headcount: 51-200
  • Latest funding type: Ipo
  • LinkedIn

Rapid7 is a company that offers complete risk management and compliance coverage for businesses migrating to the cloud. They provide cost consolidation and automation solutions. Their offerings include Managed Threat, Vulnerability & Exploit Database, and XDR & SIEMINSIGHTIDR.


10. Aqua Security

  • Website: aquasec.com
  • Headquarters: Burlington, Massachusetts, Israel
  • Founded: 2015
  • Headcount: 501-1000
  • Latest funding type: Series Unknown
  • LinkedIn

Aquasec.com offers cloud security solutions to mitigate security risks and prevent attacks on cloud native applications. Their services include securing software supply chain, dynamic threat analysis, and vulnerability scanning.


11. Vertros technology and security

  • Website: vertros.com
  • Headquarters: São Paulo, São Paulo, Brazil
  • Founded: 2012
  • Headcount: 11-50
  • LinkedIn

Vertros is a cybersecurity company that provides continuous vulnerability scanning and incident response services. With a network of over 100,000 researchers, they offer a comprehensive solution for threat detection and mitigation. Their services include penetration testing, vulnerability management, LGPD compliance, risk management, and security strategy planning.


12. Invicti Security

  • Website: invicti.com
  • Headquarters: Austin, Texas, United States
  • Founded: 2018
  • Headcount: 201-500
  • Latest funding type: Acquired
  • LinkedIn

Invicti is a web security company that helps organizations identify and remediate vulnerabilities in their web assets. Their software allows users to easily find and manage web assets, conduct dynamic security analysis, and assign vulnerabilities for remediation.


13. 3Columns

3Columns is a cyber security company that offers comprehensive solutions for businesses in Australia and New Zealand. They provide 360° protection from cyber threats, including managed firewalls, vulnerability scanning, and secure cloud architecture. Their services encompass security design, consulting, and advisory, as well as virtual CISO solutions. With a focus on reducing cyber uncertainty, 3Columns helps businesses identify and protect their most important assets.


14. CSW - Cyber Security Works

Cyber Security Works is a highly technical and professional company that offers managed security services, vulnerability management, and pentesting. They provide 360-degree visibility into security exposure, eliminate vulnerabilities in networks, and protect cyber assets.


15. HwaCom Systems Inc.

  • Website: hwacom.com
  • Headquarters: New Taipei City, T&S;Ai-Pei, Taiwan
  • Founded: 1994
  • Headcount: 501-1000
  • LinkedIn

HwaCom Systems Inc. is a company specializing in smart detection and security solutions. They offer a wide range of products and services including AI-driven cybersecurity defense, IoT/OT threat protection, and vulnerability scanning. With a focus on innovation and digital transformation, HwaCom provides solutions for various industries such as telecommunications, manufacturing, and smart cities.


16. Synack Red Team

  • Website: synack.com
  • Headquarters: Austin, Texas, United States
  • Founded: 2013
  • Headcount: 51-200
  • Latest funding type: Secondary Market
  • LinkedIn

Synack is a premier security testing platform that offers on-demand security tasks and vulnerability scanning. They provide RBAC for team collaboration and tracking, bug bounty solutions, and continuous and on-demand security testing. The company helps businesses find and fix vulnerabilities that matter, ensuring consistent test experience and real-time results for reporting and compliance.


17. c1secure

  • Website: c1secure.com
  • Headquarters: Atlanta, Georgia, United States
  • Founded: 2012
  • Headcount: 11-50
  • LinkedIn

c1 SecureConnect is a pioneering security and compliance firm that offers intelligent solutions for the extended digital enterprise. They provide a CISO Sentinel™ Security & Compliance platform and related offerings to help organizations mature their security programs. Their services include vulnerability detection, program development, integration of scan data, and control alignment. They optimize risk management and compliance posture for clients.


18. BreachLock Inc

  • Website: breachlock.com
  • Headquarters: New York, New York, United States
  • Founded: 2019
  • Headcount: 51-200
  • Latest funding type: Seed
  • LinkedIn

BreachLock Inc. is a cybersecurity company offering comprehensive security solutions to businesses. With a focus on proactive and continuous security testing, BreachLock helps organizations identify and remediate vulnerabilities in their digital assets.


19. Pratum

  • Website: pratum.com
  • Headquarters: Ankeny, Iowa, United States
  • Founded: 2008
  • Headcount: 11-50
  • Latest funding type: Acquired
  • LinkedIn

Pratum is a company that offers penetration testing services to help organizations identify vulnerabilities in computer systems, networks, and web applications. They conduct ethical hacking to educate businesses on security issues within their technology environment.


20. Hiuma - Alternativ Conseil

  • Website: hiuma.fr
  • Headquarters: Meyzieu, Auvergne-Rhône-Alpes, France
  • Founded: 2011
  • Headcount: 11-50
  • LinkedIn

HIUMA is a cybersecurity company that offers a range of services including cybersecurity audits, risk analysis, IoT environment audits, organizational audits, technical audits of industrial systems, vulnerability scans, penetration tests, and managed cybersecurity services.


21. Rootshell Security

Rootshell Security is a company that provides cloud services penetration testing, web application scanning, active exploit detection, and infrastructure scanning. They offer the Prism Platform, a vendor-neutral vulnerability management solution. The company helps clients identify and address vulnerabilities in their systems to enhance their overall cybersecurity.


Want to find more Intruder alternatives?


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