Built for the Next Stage

Cybersecurity and Managed IT
for Growing Companies

One team for managed IT, 24/7 security monitoring, vCISO leadership and incident response. Offices in New York and Cary, NC.

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

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“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

2025 Titans of Nonprofit Organizations Finalist

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. A senior responder engages within one hour.

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Trusted by the teams behind

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

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

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.

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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.

Local Teams in New York and the Research Triangle

New York City

48 Wall Street, Suite 1100. vCISO, NYDFS Part 500, managed IT and incident response for New York organizations.

New York Cybersecurity

Cary & Raleigh, NC

15000 Weston Parkway, Office 163, Cary. Cybersecurity and managed IT across the Research Triangle.

Cary Cybersecurity Raleigh Cybersecurity

Growth Changes What Your Technology & IT Security Need to Do

We help you stay ahead of it.

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Cybersecurity and Managed IT for Growing Companies