The 10 Best Penetration Testing Companies in Seattle - 2025 Reviews

Top Penetration Testing Companies in Seattle

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Enhance your cybersecurity with Seattle's top-tier penetration testing companies and consultants. Our curated list features vetted experts in identifying vulnerabilities and strengthening your digital defenses. Explore each consultant's portfolio and client reviews to make an informed choice. Whether you need network penetration testing, web application security assessments, or social engineering simulations, you'll find specialists to fortify your organization against cyber threats. Sortlist enables you to post your specific security requirements, allowing Seattle's finest penetration testing professionals to reach out with tailored solutions that align with your cybersecurity goals and compliance needs.

All Penetration Testing Consultants in Seattle

  • 5
    (1 review)

    Custom software, app and web development company. ✉ - info@urancompany.com🌎

    Top awarded
    Our mission is to convert ideas into powerful software solutions and improving the online presence of our clients' ventures to achieve their business goals with digital transformation. For 18 years, we deliver solutions for our clients from a number of industries, as Retail and Wholesale, Automotive, Heavy machinery plants, Travel, Sport, Restaurants, Entertainment, Social. With a comprehensive approach, our team is creating and delivering Corporate Portals, Online Stores, Social Networks, Live Streaming & Video Conferencing solutions, Alexa Skills, Smart Assistants, Chatbots, Single Page Applications, Progressive Web Apps. Our expertise: Ecommerce Development - Shopify, Magento & WooCommerce; Video Conferencing Software - WebRTC streaming solutions; Bots and Smart Assistants; Progressive Web AMPs and more.
    Looking for work in Penetration Testing
    Unknown location
    From €3,000 for Penetration Testing
    Worked in Hospitals & Healthcare (+5)
    Speaks English, Bulgarian
    51-200 members
  • (0 review)
    Aeris Secure provides small to mid-size companies PCI and SOC compliance services with higher efficiency, fewer interruptions and lower cost.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Learn about our audit, tax, and consulting services, including cybersecurity assessments
    Looking for work in Penetration Testing
    Unknown location
    From €1,000 for Penetration Testing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    Learn about the IT consulting services offered including SOC 2 reports, IT vulnerability assessments, DFARS compliance - Boston MA.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Rhino Security Labs is a top penetration testing company specializing in cloud (AWS, GCP, Azure), network pentesting, and webapp pentesting in Seattle.
    Looking for work in Penetration Testing
    Unknown location
    From €1,000 for Penetration Testing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    Learn about the accounting, tax, audit, and consulting services offered to companies and high net worth individuals - Salt Lake City CPA Firm.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    With offices throughout North and South America, Australia, South Africa, and United Kingdom, we offer high-quality geotechnical, environmental, and marine site investigations worldwide.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • Bringing Simplicity ClarityEfficiency to Small Business Cybersecurity Cybersecurity today is overpriced, overcomplicated, and opaque. At Iron Range Cyber we bring simplicity, clarity, and transparency to building cost-effective cybersecurity programs for small to mid-sized businesses. Get a Free Risk Assessment Use What You Have Many security vendors try to sell you overpriced tools that you don’t… Continue reading Iron Range Cyber Home
    Looking for work in Penetration Testing
    Unknown location
    From €1,000 for Penetration Testing
    Works in multiple industries
    Speaks English
    1-10 members
  • Leviathan Security Group - The Leaders in Penetration Testing, Security Assessment, Web Application Assessments and Risk Advisory Services since 2006.
    Looking for work in Penetration Testing
    Unknown location
    From €1,000 for Penetration Testing
    Works in multiple industries
    Speaks English
    1-10 members
  • Security Innovation provides application security testing, training and web application cyber range to secure and protect sensitive data in challenging software environments. Learn more.
    Looking for work in Penetration Testing
    Unknown location
    From €1,000 for Penetration Testing
    Works in multiple industries
    Speaks English
    1-10 members
  • Discover the untamed realm of cybersecurity defense with TrojanHorseSecurity.com Unleash the power of cutting-edge techniques In Penetration Testing, PCI DSS, HIPAA, Blockchain Security, Web Application Security, Risk & Vulnerability Assessments, and gain the upper hand against digital adversaries including AI attacks. Are you ready to outsmart the hackers? Brace yourself, for a new level of protection awaits. Contact us today for a free consultation. SOW within 24 hours in most cases.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    eSureITy is a US-based Cybersecurity & Risk Management provider that delivers goal-oriented business outcomes.
    Looking for work in Penetration Testing
    Unknown location
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members

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Customer reviews about Penetration Testing Companies in Seattle

IT ManagerTechnology | Seattle, WA

After a comprehensive search for the best penetration testing company in Seattle, we found a team whose expertise and attention to detail surpassed our expectations. Their thorough approach to simulating real-world attacks helped us identify and rectify vulnerabilities that we hadn't noticed before. Highly recommend their services to any business that takes their cybersecurity seriously.

Compliance OfficerHealthcare | Seattle, WA

As a healthcare provider in Seattle, ensuring the confidentiality of our patient data is paramount. This penetration testing company offered us a customized service that was both effective and discreet. Their team is clearly well-versed in handling sensitive information and their findings were instrumental in strengthening our security posture.

Security DirectorFinance | Seattle, WA

The penetration testing consultants we worked with from this Seattle-based company provided an insightful audit of our network security. The detailed report and actionable recommendations they provided greatly enhanced our defenses. Their professionalism and deep knowledge make them a top choice for any Seattle business in need of reliable penetration testing.

Insights from a Seattle Expert: Navigating the Penetration Testing Landscape

Seattle, a hub of technology and innovation, boasts a vibrant scene of cybersecurity, including specialized penetration testing services. Known not just for its iconic landmarks like the Space Needle and its robust coffee culture, Seattle is also a pivotal area for technology firms seeking advanced security solutions through professional penetration testing.

Accomplishments and Clients of Local Agencies

Achievements that Speak Volumes

In Seattle, several penetration testing providers have made their mark by securing honors at well-regarded industry awards, such as the Cybersecurity Excellence Awards. These accolades reflect their commitment to excellence and their prowess in fortifying clients' digital defenses.

Notable Partnerships and Projects

Penetration testing companies in Seattle have a reputable client portfolio, which includes major tech players and emerging startups. Some of the most striking collaborations involve top technology firms, reinforcing their security infrastructures against potential cyber threats. This exposure to diverse industries equips Seattle’s testers with a robust understanding of varied technological landscapes.

Expert Tips on Budgeting for Penetration Testing

Understanding Cost Factors

When it comes to penetration testing, the budget can significantly vary depending on the test's scope and depth. However, considering the potential financial and reputational damage of a security breach, investment in penetration testing offers substantial value. Here’s how you can smartly plan your budgets:

Small businesses: Start with essential vulnerability assessments which can range from a few thousand to tens of thousands of dollars, based on the complexity of your IT environment.

Medium-sized enterprises: Engage in more comprehensive testing, which might include social engineering exercises to mimic real-world breach attempts. Budgeting for these can start at mid-range tens of thousands and extend based on specific needs.

Large corporations: Often require continuous and extensive testing cycles across multiple platforms and systems. These projects can run into hundreds of thousands, considering the size and scope required to ensure robust security.

Maximizing Return on Investment

Choosing the right provider involves assessing not just the cost but the quality of service and past client testimonials. Understanding the detailed breakdown of service components by the provider can ensure that you aren’t paying for unnecessary services and are, instead, investing in what truly buffers your defense mechanisms.

Within Seattle's dynamic landscape, firms offer a proactive approach to cybersecurity through meticulous penetration testing. Whether it’s safeguarding the core IT infrastructure or assessing potential human factor vulnerabilities, Seattle’s penetration testers are equipped to assist businesses in maintaining integral security protocols. As an expert associated with Sortlist in Seattle, I highlight the strategic importance of leveraging local expertise to enhance your cybersecurity measures efficiently and effectively.

Karim Saadoune
Written by Karim Saadoune Sortlist Expert in SeattleLast updated on the 20-05-2025

Latest Projects Submitted to Penetration Testing Consultants in Seattle

Advanced Penetration Testing for E-commerce PlatformGrowing online retail business in Seattle>15,000€ | 05-2025The company sought a specialized penetration testing service to enhance security for their e-commerce platform, ensuring protection against cyber threats and securing customer data.
Security Assessment for Educational PlatformGrowing digital education company in Seattle>15,000€ | 04-2025An educational platform sought a penetration testing consultant to conduct detailed security assessments on their online learning system, ensuring protection against cyber threats and data breaches.
Penetration Testing for E-Commerce PlatformOnline retail business focused on consumer electronics>15,000€ | 03-2025This company was in search of a penetration testing specialist to assess their online platform's security and ensure protection against potential cyber threats during a major sales event.
Penetration Testing for Financial Services FirmEstablished financial institution in Seattle>20,000€ | 10-2024This company sought a specialized cybersecurity firm for thorough penetration testing to safeguard its data and enhance its systems' security ahead of an upcoming audit.
Network Security Audit for Retail ChainMajor retail chain headquartered in Seattle>40,000€ | 10-2024This retail company wanted a penetration testing consultant to conduct a full security audit of their systems to prevent breaches and data theft.

Frequently Asked Questions.


For Seattle-based businesses, understanding the differences between internal and external penetration testing is crucial for maintaining robust cybersecurity. Let's break down the key distinctions and explore when each approach is most appropriate:

Aspect Internal Penetration Testing External Penetration Testing
Perspective Simulates an attack from within the organization's network Simulates an attack from outside the organization's network
Access Level Typically has some level of authorized access Starts with no inside knowledge or access
Scope Internal systems, applications, and network infrastructure Public-facing assets, such as websites, APIs, and external servers
Primary Focus Insider threats, privilege escalation, lateral movement Perimeter security, external vulnerabilities, social engineering

When is Internal Penetration Testing Most Appropriate?

  • For Seattle tech companies with sensitive internal data (e.g., Amazon, Microsoft)
  • When assessing the potential impact of a compromised employee account
  • For evaluating the effectiveness of internal security controls and policies
  • After implementing new internal systems or making significant network changes
  • To comply with regulations like HIPAA for healthcare organizations in the Seattle area

When is External Penetration Testing Most Appropriate?

  • For Seattle e-commerce businesses with customer-facing websites and applications
  • When launching new public-facing services or APIs
  • To assess the security of remote work infrastructure, crucial for Seattle's tech-savvy workforce
  • Before major events or peak seasons (e.g., Amazon Prime Day, Nordstrom's Anniversary Sale)
  • To validate compliance with PCI DSS for Seattle's retail and financial sectors

It's worth noting that many Seattle businesses benefit from conducting both internal and external penetration tests. According to a 2024 cybersecurity report, 78% of companies in the Pacific Northwest that performed both types of tests annually reported a 60% reduction in successful cyberattacks.

For comprehensive security, Seattle organizations should consider a balanced approach. Start with external testing to secure your perimeter, then conduct internal testing to address insider threats and strengthen your overall security posture. Remember, the dynamic tech landscape of Seattle makes regular testing crucial – aim for at least annual assessments, with more frequent tests for rapidly evolving systems.



Organizations in Seattle should conduct penetration tests regularly to ensure their cybersecurity defenses remain robust against evolving threats. The frequency of penetration testing can vary depending on several factors, but here are some general guidelines and influencing factors for Seattle-based companies:

Recommended Frequency:
  • At least annually for most organizations
  • Bi-annually or quarterly for high-risk industries or those handling sensitive data
  • After significant changes to infrastructure or applications
Factors Influencing Testing Frequency:
Factor Impact on Testing Frequency
Industry Regulations Seattle tech companies and those in finance or healthcare may need more frequent testing to comply with regulations like HIPAA, PCI DSS, or SOC 2.
Data Sensitivity Organizations handling sensitive customer data or intellectual property should test more frequently.
Threat Landscape Seattle's thriving tech scene makes it a target for cybercriminals, potentially necessitating more frequent testing.
System Complexity Companies with complex networks or numerous cloud services may require more frequent or comprehensive testing.
Recent Security Incidents Organizations that have experienced breaches or near-misses should increase testing frequency.
Rate of Change Fast-growing Seattle startups or companies frequently updating their systems should test more often.

It's important to note that while these guidelines provide a framework, each organization in Seattle should assess its unique risk profile and consult with cybersecurity experts to determine the optimal penetration testing schedule. Additionally, continuous monitoring and vulnerability assessments should complement periodic penetration tests for a comprehensive security strategy.

According to a 2023 cybersecurity report, 68% of organizations in the Pacific Northwest region, including Seattle, now conduct penetration tests at least annually, up from 52% in 2020. This trend reflects the growing awareness of cybersecurity importance in the area's tech-driven economy.

Remember, penetration testing is just one component of a robust cybersecurity program. Seattle organizations should also focus on employee training, incident response planning, and staying informed about local cyber threats and regulations to maintain a strong security posture.



Penetration testing is a crucial tool for Seattle organizations looking to comply with industry-specific regulations and standards. As the tech hub of the Pacific Northwest, many Seattle-based companies deal with sensitive data and face strict compliance requirements. Here's how penetration testing can help:

1. Identifying Vulnerabilities:
  • Uncovers security weaknesses before malicious actors can exploit them
  • Helps meet requirements for regular security assessments (e.g., HIPAA, PCI DSS)
  • Provides a realistic view of an organization's security posture
2. Demonstrating Due Diligence:
  • Proves to auditors that security is taken seriously
  • Shows proactive efforts to protect sensitive data
  • Helps fulfill the 'reasonable security measures' clause in many regulations
3. Compliance with Specific Standards:

Seattle organizations can address various standards through penetration testing:

Standard/RegulationRelevance to SeattlePenetration Testing Requirement
HIPAAHealthcare organizations, biotech firmsRegular risk assessments, including penetration tests
PCI DSSE-commerce, retail, financial servicesAnnual penetration testing and after significant changes
SOC 2Cloud service providers, SaaS companiesPenetration testing as part of security controls
GDPRCompanies handling EU citizen dataRegular testing of security measures
4. Tailored to Seattle's Tech Landscape:
  • Addresses cloud security for Amazon Web Services (AWS) compliance, given Amazon's strong presence in Seattle
  • Focuses on mobile app security for the city's thriving app development scene
  • Emphasizes IoT device testing for Seattle's smart city initiatives
5. Continuous Compliance:

Regular penetration testing helps Seattle organizations maintain ongoing compliance, especially important in rapidly evolving industries like technology and healthcare, which are prominent in the area.

6. Third-Party Validation:

Many Seattle-based penetration testing firms offer independent assessments, providing the objectivity required by many regulatory bodies.

According to a 2024 cybersecurity report, 78% of Seattle companies that conducted regular penetration tests reported smoother compliance audits and a 35% reduction in compliance-related costs. By investing in thorough penetration testing, Seattle organizations can not only meet regulatory requirements but also strengthen their overall security posture, protecting their assets and reputation in this tech-forward city.