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10 Best Cyber Security Companies in Seattle

Nathan Oliver

Nathan Oliver, Head of Cyber Security
Dec 29, 2023

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Choosing a cyber security company is more than a precaution; it's a necessity in today's climate of relentless web-based attacks. From protecting sensitive customer data to guaranteeing uninterrupted business operations, digital defence firms provide custom solutions that tackle the fundamental challenges of online security.

However, finding a capable and trusted provider can be a challenging task. Hence, this guide explores the 10 best cyber security companies in Seattle in 2024. This comprehensive overview aims to simplify your search, ensuring you make an informed decision when choosing the right partner for your needs.

Microminder Cyber Security

1. Microminder

Microminder is an industry-leading Cybersecurity-as-a-Service (CSaaS) provider with extensive expertise in various industries. Our team specialise in offering strategic digital defence solutions to businesses ranging from startups to large enterprises.

With services including managed detection and response, SOC as a Service (SOCaaS), threat intelligence and hunting, compliance, incident response, and digital forensics, we are competent to handle your security needs. Additionally, our team will help your company with all its compliance endeavours, guaranteeing strict information security policies.

Interested? Here are some benefits of partnering with us:

  • Certified Company: As a CREST and CE+ certified consultancy, we take pride in our pen testing and SOC services. Our certifications highlight our unwavering commitment to cyber security excellence.
  • Extensive Experience: In our journey of over 38 years, we have built a legacy of trust and expertise in the digital safety field. We've had the privilege of working with more than 2400 global clients, a testament to our ability to steer through the complex and ever-evolving landscape of cyber defence across various sectors.
  • Latest Technology: At Microminder, we are dedicated to leveraging the latest, best-in-class technology solutions in our services. This commitment to technological advancement ensures that we are always equipped to provide our clients with the most effective defences against web-based attacks.

So, why wait when we can start safeguarding your critical infrastructure right away? Contact Microminder CS today.

  • Headquarters: London, UK
  • Founded: 1984
  • Email Address:
  • Website:
  • Contact: +44 203-336-7200
  • Address: 8a Wadsworth Rd, Perivale, London, England UB6 7JD, GB
  • Specialisation: OT Cyber Security, Penetration Testing, Cyber Risk Management

Critical Insight

2. Critical Insight

Born from the need to combat nation-state cyber attackers, Critical Insight offers managed detection and response, vCISO, incident preparedness, and various other services. They focus on providing complete cyber security for critical infrastructure, integrating with existing tech, and addressing the entire NIST-CSF. Additionally, Critical Insight's services are also essential for companies needing to comply with regulations like HIPAA and PCI, making sure they adhere to data protection regulations and avoid legal repercussions and fines.

  • Headquarters: Seattle, USA
  • Founded: 2012
  • Email Address:
  • Website:
  • Contact: +1 800-604-4810
  • Address: 1215 4th Avenue, Suite 1710, Seattle, WA 98161-1025, US
  • Specialisation:Critical Infrastructure Protection, Compliance, Managed Detection and Response

Leviathan Security Group

3. Leviathan Security Group

For firms in Seattle seeking integrated risk management and information security solutions, Leviathan Security Group is another option. The agency's expertise extends to vendor safety management, making sure that third-party data handling is free of vulnerabilities. Aside from that, the team also offers a Virtual Information Security Office (VISO) to provide senior-level guidance for organisations without a full-time professional. Leviathan Security Group also prepares clients for compliance audits and conducts readiness assessments for standards like SOC 2, ISO 27001/2, and NIST-CSF. 

  • Headquarters: Seattle, USA
  • Founded: 2006
  • Email Address:
  • Website:
  • Contact: +1 866-452-6997
  • Address: 2925 1st Ave S, Seattle, Washington 98134, US
  • Specialisation: Risk Assessment, Information Security Consulting, Defence Strategy Development, Code Review

Kalles Group

4. Kalles Group

Next we have Kalles Group, a premier management consultancy in cyber security and technology transformation. Specialising in digital safety and data protection, the team provides personalised strategies, ensuring the privacy and confidentiality of customer and staff information. Additionally, like the other firms, Kalles Group also assists businesses in meeting regulatory obligations and compliance commitments, preparing for audits, and aligning with industry frameworks. The agency's commitment to integrity, ownership, and purposefulness ensures it delivers the best outcomes, maintaining long-term, healthy relationships with its clients.

  • Headquarters: Seattle, USA
  • Founded: 2010
  • Email Address: N/A
  • Website:
  • Contact: +1 206-652-3378
  • Address: 4311 11th Ave NE, Suite 504, Seattle, Washington 98105, US
  • Specialisation: Technology Consulting, Project Management, Penetration Testing

Anvil Secure

5. Anvil Secure

Anvil Secure stands out as a global team of industry veterans, bringing a wealth of expertise in cyber security. The agency approach goes beyond providing technical solutions; it focuses on understanding different businesses and their distinct needs. Its services are tuned to uncover vulnerabilities that automated tools might miss, providing actionable insights for robust protection. Moreover, Anvil Secure’s team works closely with clients to develop a forward-looking, bespoke plan, enhancing their security posture and resilience. 

  • Headquarters: Seattle, USA
  • Founded: 2016
  • Email Address:
  • Website:
  • Contact: +1 206-753-7649
  • Address: 2125 Western Ave Suite 208, Seattle, WA 98121
  • Specialisation: Information Security, Penetration Testing, Application Security

Rhino Security Labs

6. Rhino Security Labs

This company provides penetration testing to firms in Seattle in various industries, including healthcare, finance, retail, and technology. Rhino Security Labs services also cover cloud, network, mobile and web application scans, as well as social engineering assessments. Aside from identifying vulnerabilities, the team strives to understand the specific threat models and safety goals of each client. At the end of each evaluation, it provides a detailed report with actionable steps to safeguard digital assets. Endorsed by industry leaders, Rhino Security Labs stands as a reliable security consultant for Fortune 500 companies.

  • Headquarters: Seattle, USA
  • Founded: 2013
  • Email Address:
  • Website:
  • Contact: +1 888-944-8679
  • Address: 464 12th Ave, Suite 300, Seattle, WA 98122
  • Specialisation: Penetration Testing


7. DigitSec

DigitSec, established in 2017, is a leader in Salesforce security scanning and vulnerability assessment. Its SaaS application testing empowers clients to innovate with confidence. More specifically, with its DigitSec S4 platform created for developers, administrators, managers, and CISOs, it can analyse and integrate security into the software development lifecycle effectively. This comprehensive approach ensures Salesforce environments are protected and compliant. Simply put, DigitSec’s combination of cutting-edge technology and extensive knowledge makes it a go-to solution for Salesforce security.

  • Headquarters: Seattle, USA
  • Founded: 2017
  • Email Address:
  • Website:
  • Contact: +1 206-659-9521
  • Address: 92 Lenora St #137, Seattle, WA 98121, USA
  • Specialisation: SaaS, Salesforce, Cloud Security, Penetration Testing

vCTO Secure

8. vCTO Secure

Since 2011, vCTO Secure has been a pivotal player in Seattle's IT support landscape, offering comprehensive services to small and medium-sized businesses. Its managed services plan focuses on proactive and intelligent technology solutions, ensuring data loss prevention and continuous business technology operations. In addition to this, the team at vCTO Secure provides round-the-clock maintenance and help desk support, making sure that their clients' IT systems are always up and running efficiently.

  • Headquarters: Seattle, USA
  • Founded: 2011
  • Email Address:
  • Website:
  • Contact: +1 206-895-5595
  • Address: 705 5th Ave, Seattle, WA 98146, US
  • Specialisation: Managed Services, IT Consulting, Centralised IT Management, Microsoft Office 365 Consulting

CMIT Solutions

9. CMIT Solutions

CMIT Solutions is a premier cyber solution provider, catering to organisations across North America with enterprise-class IT support. The agency's team of experienced professionals is committed to delivering responsive and professional digital solutions and technology services. With a focus on proactive maintenance, monitoring, and backups, it ensures its clients benefit from an efficient, safe, and reliable online environment. Recognised for its expertise in managing technology infrastructure, CMIT Solutions also provides client data security and compliance with relevant regulations.

  • Headquarters: Seattle, USA
  • Founded: 2014
  • Email Address: N/A
  • Website:
  • Contact: N/A
  • Address: 506 2nd Ave, 1400, Seattle, WA 98104, US
  • Specialisation: Managed IT Services, Network Security


10. Cloud1iT

Cloud1iT positions itself as a strategic partner for small and medium-sized businesses, as well as individual home needs, by offering access to the latest in technological expertise and innovations. To this end, its offerings encompass managed IT services, including backups, monitoring, and maintenance, aimed at boosting productivity and reducing downtime. Furthermore, Cloud1iT supports growth and adaptability by promoting scalability, ensuring that technology infrastructure is standardised and ready to evolve with the business.

  • Headquarters: Seattle, USA
  • Founded: 2014
  • Email Address:
  • Website:
  • Contact: +1 206-895-5888
  • Address: Seattle, WA 98101, US
  • Specialisation: IT Services, Consulting

6 Red Flags to Watch Out for When Choosing a Cyber Security Company

When selecting a digital defence provider, it's crucial to be aware of certain red flags that could indicate a provider may not be the best fit for your business. Here are some warning signs to watch out for:
  1. Emphasis on Selling Products
    A significant red flag is when an agency focuses more on selling its products than understanding your specific needs. A trustworthy partner should first conduct a thorough assessment of your network, server, and digital infrastructure. This will make sure that any recommended solutions are tailored to address your unique safety challenges. Hence, if a provider is quick to sell products without a detailed evaluation of your systems, it's a sign they might be more interested in sales than genuinely safeguarding your firm.
  2. Lack of Expertise
    When evaluating a company, a significant concern is the absence of expertise and proper certification. A credible firm should employ professionals holding industry-recognised certifications such as Certified Ethical Hacker (CEH), Offensive Security Certified Professional (OSCP), and Certified Information Systems Security Professional (CISSP). These certifications are not just accolades; they are assurances that the company's staff are equipped with essential skills and in-depth knowledge vital for executing a thorough and dependable defence strategy.
  3. Limited Scope of Testing
    A comprehensive approach to your company's digital protection is crucial, as it should include the entirety of your network infrastructure, every application used within the company, and both physical security and social engineering aspects. Hence, be cautious of pen testing services focusing narrowly on singular aspects while neglecting others. An all-encompassing assessment is vital to identify and rectify all potential vulnerabilities. This holistic strategy significantly diminishes the risk of cyber attacks and data breaches, fortifying your overall safety posture.
  4. Poor Explanation of Services
    A good provider should be able to explain their services and strategies in layman's terms. Suppose a provider uses excessive jargon or cannot clearly articulate what they offer and how it benefits your business. In that case, it may be a sign of incompetence or a lack of transparency. You need an agency that ensures you fully understand and are comfortable with its approach to safeguarding your business.
  5. Cookie-Cutter Approaches to Cyber Security
    It's crucial to partner with a firm that recognises the distinct safety needs of each business, eschewing one-size-fits-all methodologies. The ideal provider will:
    • Conduct a comprehensive assessment of your systems
    • Tailor their testing strategies to align with your unique requirements
    • Employ a mix of manual and automated testing techniques for thorough analysis

    Be cautious of agencies offering generic, cookie-cutter testing solutions. These providers often overlook the specific challenges and requirements of your business, potentially leaving gaps in your security posture.
  6. Unsubstantiated Claims
    Watch out for companies who make grand promises, especially those guaranteeing 100% protection against online threats. In the realm of online safety, there is no such thing as absolute security. The digital threat landscape is continually evolving, and even the best strategies cannot ensure complete immunity from attacks. A reliable partner will be honest about the limitations of their services and focus on offering a multi-layered, proactive approach to defence rather than making unrealistic promises.


To sum it up, selecting a capable cyber security provider is a strategic decision that significantly impacts an organisation's digital safety and business continuity. Hence, by choosing the right partner from these top 10 cyber security companies in Seattle, enterprises can fortify their defences against security gaps, ensuring the safety of sensitive data and the smooth running of their operations. 

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