Best Washington Cybersecurity Firm Rankings

6 Companies - Rankings updated: August 28, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

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  • Aldridge

    Your Strategic Partner in IT Advancement

    Aldridge pairs growing businesses with a local, dedicated security team, offering risk-based cybersecurity strategies, 24/7 threat detection and response, layered security controls, and incident recovery. Backed by 40 years of experience, it has served healthcare, manufacturing, and nonprofit sectors...

    Top Services:

    • Managed Services
    • IT Services
    • Cybersecurity
    Location
    Renton, Washington
    Number of Employees
    100 - 249

    Aldridge Services

    • Managed Services
    • IT Services
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Construction Industry
    • Health Care Industry
    • Legal Industry
    Data sourced from the agency's DesignRush profile

    Aldridge Reviews & Testimonials

    • Weldon
      Weldon Undisclosed at Undisclosed
      5.0 ★

      IT Services Review from Weldon

      The quality of Aldridge’s work is above reproach and I would recommend Aldridge for superior IT service. They are a pleasure to do business with.

    • Micheal
      Micheal Undisclosed at Distribution Company
      5.0 ★

      IT Services Review from Micheal

      The service and support we receive from Aldridge is always excellent. The response time is incredible, the level of expertise is extremely high and the professionalism of the staff is impressive.

    • Saleem
      Saleem Employee at Technology Company
      5.0 ★

      IT Services Review from Saleem

      Aldridge has been a great partner to work with. They are honest, flexible, and competent.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
    Visit Website View Profile
    4.8 4.8 (5)
    4.8 4.8 (131)

  • Deloitte

    Collaborating for Lasting Impact in Business Consulting

    Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals...

    Top Services:

    • Business Consulting
    • Accounting
    • HR Outsourcing
    • Big Data Analytics
    • CRM Consulting
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
    Portfolios Count
    6 Projects Listed

    Deloitte Services

    • Business Consulting
    • Accounting
    • HR Outsourcing
    • Big Data Analytics
    • CRM Consulting
    • Cybersecurity
    • AI Development
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Financial industry
    • Government Sector
    • IT industry
    • Manufacturing industry
    • Telecommunications industry
    Data sourced from the agency's DesignRush profile

    Deloitte Reviews & Testimonials

    • InlineAdam
      InlineAdam Review from Google
      1.0 ★

      InlineAdam's Review Sourced from Google

      So sphiscated accounting systems I must say. For what? Never saw an irs payable in any return they asked me to prepare although I’m no licensed accountant. No names no whistle just a honest google review. Makes me wonder what an accountant does, cooking books or AICPA reporting them. No mark up in my basis. The roc building is beyond comprehension though, they even do SNL up or down stairs never got to see a show so I don’t know

    • ModernfoldStyles, Inc.
      ModernfoldStyles, Inc. Review from Google
      5.0 ★

      ModernfoldStyles, Inc.'s Review Sourced from Google

      We are proud to have been able to offer a beautiful Modernfold panel recovery job to give the walls a facelift to complete newly renovated meeting rooms at Deloitte in Rockefeller Plaza. Deloitte has always been such a great and dear client of ours! We look forward to continuing to work together in the future!

    • Alex Stackhouse
      Alex Stackhouse Review from Google
      1.0 ★

      Alex Stackhouse's Review Sourced from Google

      Deloitte completely failed implementation of Army IgnitEd, which led to thousands of service members paying out of pocket for education expenses. The circus that we watched unfold leaves me with zero confidence in the services that this firm provides.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    3.4 3.4 (83)

  • Protiviti

    Global Business Consulting Excellence

    Protiviti is a global consulting firm that offers deep expertise, objective insights, and tailored solutions to empower leaders in tackling future challenges. With a comprehensive range of services spanning finance, technology, operations, data, analytics, governance, risk, and internal audit, we serve...

    Top Services:

    • Business Consulting
    • IT Compliance Solution
    • Big Data Analytics
    • IT Services
    • Cybersecurity
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up
    Portfolios Count
    5 Projects Listed

    Protiviti Services

    • Business Consulting
    • IT Compliance Solution
    • Big Data Analytics
    • IT Services
    • Cybersecurity
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • KnowBe4
    • Resolver
    • PowerSchool
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile
    5.0 5.0 (1)

  • SPD Group

    TECHNOLOGY PARTNER FOR INNOVATIVE COMPANIES

    While modern technologies change our world, we help companies with innovative technologies. From E-Commerce to Fintech, from Machine Learning Development to Blockchain - we’ve got the necessary expertise to help you deliver your product on time and within the budget...

    Top Services:

    • Software Development
    • IT Services
    • IoT
    • eCommerce Development
    • Cybersecurity
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    250 - 499
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed

    SPD Group Services

    • Software Development
    • IT Services
    • IoT
    • eCommerce Development
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Pitchbook
    • BlackHawk Network
    • Space Needle
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

  • Withum

    Business & Technology Solutions

    Withum can be the new business advisor relationship you need to inspire innovation for your growth and success. Experience a fresh perspective on embracing what you’ve learned and refocusing your business strategy to thrive in an evolving, complex business environment. Whether you’re looking to strengthen...

    Top Services:

    • Accounting
    • HR Outsourcing
    • Cybersecurity
    • IT Services
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up

    Withum Services

    • Accounting
    • HR Outsourcing
    • Cybersecurity
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Finance Industry
    • Healthcare Industry
    • Legal Industry
    • Construction Industry
    • Consumer Goods Industry
    Data sourced from the agency's DesignRush profile

    Withum Reviews & Testimonials

    • Jerome Wong
      Jerome Wong Review from Google
      5.0 ★

      Jerome Wong's Review Sourced from Google

      We have had the pleasure of working with Withum for our annual audit engagements and have been impressed by the high standard of service provided. The audit team has demonstrated exceptional professionalism, with auditors who are clearly experienced, knowledgeable, and efficient throughout the entire process.

    • Jonathan Hunt
      Jonathan Hunt Review from Google
      5.0 ★

      Jonathan Hunt's Review Sourced from Google

      The Withum team has been very responsive and met all of their deadlines. They have demonstrated their knowledge and understanding of our industry which has been beneficial with some of our more complicated transactions. We have appreciated their communications throughout the engagement and the ease of being able to connect with the partner, manager, and other staff members.

    • John Gilmer
      John Gilmer Review from Google
      5.0 ★

      John Gilmer's Review Sourced from Google

      The entire Withum Team, Audit, Tax and M&A Services, is great. We have been with them back to the OUM days. They have always partnered well with our company as it has evolved and our organization and processes have matured. They are incredibly responsive, professional and tuned in to our specific business requirements.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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    5.0 5.0 (8)

  • EY

    Building A Better Working World

    EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders...

    Top Services:

    • Business Consulting
    • HR Outsourcing
    • Accounting
    • Cybersecurity
    • IT Services
    • Show more
    Location
    Seattle, Washington
    Number of Employees
    1000 & Up

    EY Services

    • Business Consulting
    • HR Outsourcing
    • Accounting
    • Cybersecurity
    • IT Services
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Qiagen
    • Apple
    • ASOS
    • Microsoft
    • Wawa
    Data sourced from the agency's DesignRush profile
    Visit Website View Profile

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