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    Defensible

    Managed IT Security Services
    Built for the Next Stage

    Growth changes what your technology and IT security need to do.

    Founded & led by former Stroz Friedberg leaders, the premier incident response firm

    Talk to an ExpertSee Who We Help

    “I've worked with Defensible for years, and they're in a different league from other MSPs and security providers.”

    Max Everett, CISO, Shaw Industries,
    Former CIO at The White House and U.S. Department of Energy
    Top 250 MSSP 2024 HonoreeTop 250 MSSP 2025 Honoree2025 Titans of Nonprofit Organizations FinalistTop 20 Cybersecurity Innovators of 2025

    The MSP for Growing Companies

    Structured Around Growth & Risk

    Growth changes what your technology and security need to do. What worked at the last stage creates exposure at the next one. We make sure your program keeps pace.

    Built In, Not Bolted On

    Cybersecurity is embedded into how systems are designed, deployed, and governed from day one.

    Led by Senior Technologists

    Strategy and execution are led by senior technologists who remain directly involved throughout the engagement.

    Executive-Level Oversight

    C-suite guidance (CIO, CTO, CISO) ensures technology and cybersecurity decisions are made with a clear understanding of their operational and business impact.

    One Integrated Program

    IT, cybersecurity, assessments, and incident response are unified under one operating model.

    See Why We're Different

    One Firm. Every Service.

    Cybersecurity Services

    IT security solutions that keep pace with how your business grows.

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    IT Services

    IT infrastructure managed for where you're going, not just where you are. Managed by experienced IT security service providers focused on scalability and resilience.

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    Assessment Services

    Know where your environment stands before your buyers, auditors, or acquirers do. Trusted by organizations seeking experienced IT security consulting companies.

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    Incident Response & Digital Forensics (DFIR)

    Former Stroz Friedberg leaders are on call 24/7. Average response time under an hour.

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    Trusted by the teams behind

    Shaw Industries logoLankler Siffert & Wohl LLP logoThe Ocean Foundation logoConsilience 360 logo

    Frameworks & Standards We Work In

    We build and assess security programs against the frameworks your auditors, insurers, and customers ask about — and prepare you for the evidence they request.

    CIS Controls
    Implementation Groups 1–3
    NIST CSF 2.0
    Program mapping & maturity
    SOC 2
    Readiness & evidence support
    HIPAA
    Safeguards for PHI environments
    ISO 27001
    Control alignment & gap analysis
    GDPR / State Privacy
    Data protection requirements
    Global Healthcare SaaS Merger
    Featured Customer Story

    Navigating Complexity in a Global Healthcare SaaS Merger

    • Customer: Global Healthcare SaaS Company (formed through merger of three PE-backed firms)
    • Challenge: Following a major merger, the company faced a fragmented IT landscape spanning multiple platforms, domains, and global teams with HIPAA compliance on the line.
    • Solution: Defensible led a seamless integration, consolidating Microsoft 365 and Google Workspace into one secure tenant, unifying infrastructure across regions, and streamlining domains with zero downtime.
    • Result: Delivered a secure, scalable IT environment on time and on budget. Today, Defensible continues as their global managed services provider.
    See the Full Story
    Who We Protect

    Organizations Where Risk & Growth Intersect

    • SaaS & technology startups moving upmarket and facing new growth requirements
    • Private equity firms seeking visibility into IT and security risk across their portfolio
    • Non-profits where technology failures directly impact mission delivery and trust
    • Organizations in healthcare, financial services, and education navigating growth, compliance, and the operational complexity that follows
    See Who We Help
    Industries we serve
    Pricing environments

    Managed Services Pricing

    Our managed services are structured to align with your current environment, stage of growth, and tolerance for risk.

    Whether you need advanced cybersecurity, foundational IT support, or both, we work as a fully managed or co-managed partner.

    View Managed Services Pricing

    What Our Customers are Saying

    Read More Testimonials
    “Defensible Technology is an amazing company to work with. We have utilized their services and are very pleased with the results. They have been incredibly effective in helping us to discover, understand and remediate security vulnerabilities in our environment. Thanks to their insight and expertise, we have been able to implement better safeguards and improve our firm's security posture.”
    Shawn Campbell, Chief Information Officer at Lankler Siffert & Wohl LLP
    “We evaluated three firms and chose Defensible for the depth of their cyber expertise and knowledge of our legacy systems. Within a short period, they had assessed our needs, made clear recommendations, and helped us regain control of all our systems—hardware, software, and network infrastructure. Most importantly, we get prompt responses whenever questions or issues arise.”
    Mark J. Spalding, President & CEO of The Ocean Foundation
    “I've worked with Defensible for years, and they're in a different league from other MSPs and security providers. Their team brings unmatched expertise, sharp strategic thinking, and a level of commitment that's rare in this industry. When it comes to protecting your business and making smart, confident decisions, Defensible is the partner you want in your corner.”
    Max Everett, CISO, Shaw Industries · Former CIO at The White House and U.S. Department of Energy
    “Defensible Technology has proven to be a trusted and capable provider of services in the fields of Information Technology implementation and services, as well as Security Services. I have known and worked closely with Defensible's CEO, Steve Doty, and his colleagues for years. They are excellent professionals and it is a pleasure working with them. I recommend Defensible without hesitation for any organization that is seeking experienced high quality talent that can be trusted to deliver the valuable services they offer.”
    Ed Stroz, Founder of Consilience 360, LLC and Stroz Friedberg, LLC

    Frequently Asked Questions

    A managed IT security service provider runs the day-to-day security and technology operations for your organization — monitoring, detection and response, identity and access, patching, and governance — under a single accountable team. Defensible combines that with IT operations, assessments, and incident response so nothing falls between vendors.

    Cybersecurity services (MSSP, managed detection and response, vCISO and fractional CISO leadership), IT services (managed and co-managed IT), assessment services (risk assessments, penetration testing, compromise assessments, cyber insurance and M&A due diligence), and 24/7 incident response and digital forensics.

    Growing organizations where risk and growth intersect: SaaS and technology companies moving upmarket, private equity firms and their portfolio companies, non-profits, healthcare organizations, financial services firms, and education institutions.

    Our incident response team, led by former Stroz Friedberg senior leaders, is on call 24/7 with an average response time under one hour. Engagements cover containment, forensic investigation, and recovery.

    We build and assess programs against CIS Controls, NIST CSF 2.0, SOC 2, HIPAA, ISO 27001, and applicable privacy regulations, and we prepare the evidence auditors, insurers, and enterprise customers request.

    Defensible has offices in New York City (48 Wall Street, Suite 1100) and Cary, North Carolina (15000 Weston Parkway, Office 163), and serves clients across the United States.

    Pricing is structured around your environment, stage of growth, and tolerance for risk, and we work as either a fully managed or co-managed partner. Our pricing page outlines what each tier includes so you can scope the right fit before talking to us.

    Growth Changes What Your Technology & IT Security Need to Do

    We help you stay ahead of it.

    Talk to an Expert