Risk Assessment


Incident Response


Vulnerability Assessment

Penetration Testing



I have worked closely with GreyCastle Security on a great many projects over the past two and one-half years, with incredible success. The GCS team is accomplished, credible, professional and skilled in all aspects of cybersecurity tradecraft. The beneficiary of our relationship is founded in the security program improvements achieved on behalf of our clients. I consider my company and our portfolio of strategic partners to be the thought leaders in the industry, and Grey Castle Security's presence is at the zenith of that small group in cybersecurity services.

Joseph V., Director, Mobility and Security, Information Technology and Services Company, Clifton Park, NY

GreyCastle Security has helped us navigate and prioritize the key strategies to deal with the speed of light changes and threats that impact our IT environment.

William G., Chief Executive Officer, Human Services Provider, Albany, NY

GreyCastle Security was amazing! They took the time to understand our needs and then helped us design a program that exceeded our expectations all well within our time deadlines.

Mark B., Director, Network and Technical Services, Private Liberal Arts College, Saratoga Springs, NY

Working with GreyCastle Security on our DDoS issue was a pleasure. They knew what they were talking about and guided us to a solution that would work for my organization.

Antonio V., Technology Coordinator, High School, Philadelphia, PA

GreyCastle Security was very easy to work with, they were extremely accessible, they were very detailed, and showed a strong willingness to answer any questions we had.

Director of Privacy and Security, Health Information Exchange, Albany, NY

Their security experts and engineers were very knowledgeable and understood our concerns. We couldn't have picked a better cybersecurity company to work with.

Jean C., Administrator, State Financial Agency, Albany, NY

The instructor was able to keep our attention and bring across the points very clearly. I would recommend him for instruction anytime you need to keep the attention of the audience for 'dry' material.

Awareness Training Student, Private College, Schenectady, NY

After working with GreyCastle we have a better understanding of where we are and where we're headed. We're able to manage our risks and ensure the security of our students, staff and college as a whole.

Emily H., Information Security Officer, Private College, Poughkeepsie, NY

GreyCastle is great to work with. They have a strong understanding not only of our security challenges, but the compliance ones we face as well. We will definitely use their services again.

Christine J., IT Manager, Hospital System, Johnstown, NY

Our interaction with GreyCastle was such a positive and educational project we are now actively engaging with GreyCastle on a monthly basis to continue to improve our systems and processes across the entire enterprise.

John N., Director of Information Systems, Manufacturer, Latham, NY

GreyCastle Security is always a pleasure to work with. They are professional, responsive, and, most importantly, they routinely exhibit security expertise. We consider them a critical long-term partner.

Director of Privacy and Security, Health Information Exchange, Albany, NY

The team from Greycastle was tremendous to work with; they led us through the entire process, leveraging their expertise to help improve the security of our application.

Randall J., Principal, Application and Mobile Development Company, Warwick, RI

In a complicated world where cyber threats are a boardroom topic, it is refreshing to see an organization like GreyCastle Security take a pragmatic approach in helping organizations. They are the niche player that brings real-world solutions, unique to each company. GreyCastle is a trusted partner in advancing my security program to 'best in class' and understand how to balance the need to protect the organization while running the business.

Martin B., VP and CSO, Technology Company, North Canton, OH

I have worked with GreyCastle Security in a variety of different contexts. Without exception, I have found GreyCastle staff to be responsive, easy to work with and highly capable.

Kurt B., Partner, Legal Office, Albany, NY

Working with GreyCastle Security has been a very positive experience. The Risk Assessment that was conducted allowed us to measure our progress year after year and their Awareness Training was extremely effective with our employees based on phishing attacks that occurred afterwards.

Chris B., CIO, Healthcare Provider, Torrington, CT

GreyCastle Security helped us navigate through a complex Risk Assessment that we simply couldn't have done ourselves.

Martin B., ISO, Fortune 500 Manufacturer, Detroit, MI

It's been great working with the GreyCastle Security team. They're intelligent about security, but also personable and engaging. They didn't just 'check boxes', they actually secured our organization as a whole.

Nosa B., CEO, Technology Provider, Jackson, MS

GreyCastle Security has been a good consultant to work with. They're very timely, good at reporting and are able to present our security issues and solutions in a practical manner that's easy for us to understand.

Scott T., IT Manager, National Insurance Company, Towson, MD

They've helped us identify our vulnerabilities and provided the resources needed to manage them. We worked with a great team and will continue to do so in the future.

Andy P., IT Infrastructure and Operations Manager, National Media, Newington, CT

GreyCastle Security was able to meet our security needs and provide tremendous value, all while staying within our budget.

Joe H., CEO, National Manufacturer, Latham, NY

While there are no guarantees when it comes to cybersecurity, GreyCastle has helped provide us with piece of mind and reassure us that we're headed in the right direction.

Kevin B., Director, Consulting Agency, Buffalo, NY

GreyCastle Security helped us identify areas for improvement within our people, process and technology and because of that we were able to make our environment much more secure.

Matt M., Director, Government Agency, Albany, NY

GreyCastle Security has a great reputation in the area and it was the logical place to turn when we realized we needed to buckle down on our security.

Joseph S., Partner, Law Firm, Albany, NY

Prior to working with GreyCastle Security, we were in pretty rough shape. They were able to get us ready for compliance deadlines and avoid regulatory penalties.

Brad M., Information Technology Administrator, Federal Credit Union, Schenectady, NY

They [GreyCastle Security] offered and provided a very robust variety of services that catered to our every need from both a cybersecurity and business perspective.

Mark C., CEO, Public Utility, Albany, NY

Since working with GreyCastle Security, not only have we become compliant, but we've also set ourselves up for a competitive advantage for gaining future clients. We now have the ability to make ourselves and our customers feel secure.

Don W., CIO, National Retailer, Schenectady, NY

They've been a tremendous partner that has brought skills in-house that we simply didn't have. GreyCastle never loses focus: They don't get distracted, and the expertise they provide gives us a peace-of-mind that's hard to put a price on.

Roy S., Director, Publically Traded Retailer, Albany, NY

We needed to define and enforce cybersecurity policies for all of our employees. Cybersecurity awareness is about accountability, and GreyCastle has taught us how to train employees in a fun and interactive way that makes the point, and helps employees remember it.

Roy S., Director, National Retailer, Albany, NY

Regardless of how consumer behaviors and digital payment capabilities change, we feel like we'll be ready from a security perspective -- and we have GreyCastle to thank for that.

Roy S., Director, Online Retailer, Albany, NY

Working with GreyCastle Security has been excellent. They have great subject matter experts that were very helpful and responsive to our cybersecurity needs.

John A., CFO, Global Retailer, Albany, NY

We will definitely continue to use GreyCastle Security in the future to manage all our security risks.

Kevin L., CIO, State University, Hamilton, NY

Working with GreyCastle has been great. They helped us prepare for auditors, meet strict compliance deadlines and secure our patients.

Chris B., CIO, Healthcare System, Longview, TX

We've had a very positive experience working with GreyCastle. They worked well with our team and provided a good baseline for improving our security posture.

Richard D., Director of Information Technology, Regional Medical Center, Manchester, CT

After working with GreyCastle Security we have a better understanding of where our risks are and how we can continue to manage them.

Joel R., COO, Healthcare Analytics Provider, Albany, NY

Since I started working with GreyCastle Security, I feel my facilities security both from a human standpoint and technological standpoint as improved drastically. They have given me the knowledge to better serve not only the staff but the patients as well.

Steve A., IT Systems Administrator, Healthcare Provider, Scotia, NY

GreyCastle Security was highly recommended to us and they lived up to our expectations. The ISO prep auditor was extremely knowledgeable and helped us stay on schedule, maintaining almost daily contact over the span of the project.

Raymond K., Vice President, Security and Compliance, Retail Software-as-a-Service Company, Irvine, CA

In the rapidly changing world of information security, I needed a strong partner to augment my internal team. GreyCastle Security is that partner, and has done an outstanding job supporting our efforts.

Tom F., Vice President, Information Technology, Manufacturer, Cumberland, RI

GreyCastle Security helps us maintain strict security guidelines and cutting edge cyber security, keeping our members information safe and secure.

Sue C., Chief Executive Officer, Credit Union, Corinth, NY

GreyCastle Security provided my company with outstanding expertise in the area of regulatory compliance and ultimately helping us become ISO 27001 certified!

Tyler C., Manager, Information Security, Software-as-a-Service Company, Cincinnati, OH

The staff at GreyCastle Security is very thorough and knowledgeable. They are providing my organization great support as we face the challenges of maintaining a secure environment.

Madeline C., Director, Information Technology, Labor Union, Latham, NY

GreyCastle Security kept coming up in our search for a cybersecurity firm and we are glad they did. They moved fast and with care. They understand that not all businesses are the same and ensure that you are actually securing your data, not just checking boxes on a regulatory form. We couldn't be happier with our choice.

Marlowe G., Chief Executive Officer, Electric Health Record Software Company, New York, NY

Our partnership with GreyCastle Security has allowed our institution to approach cybersecurity in a comprehensive way. GreyCastle Security offers the resources to more efficiently and expertly approach the multi-layered challenges of implementing a modern cybersecurity strategy.

Fred D., VP Strategic Initiatives and Chief Information Officer, Liberal Arts College, Geneva, NY

Working with GreyCastle Security has been a productive and easy. Their attention to detail and highly structured approach help us to implement an incident response plan that is both effective and makes sense for our organization.

Aaron G., Manager, Cloud Operations, Software Company, Rochester, NY

GreyCastle Security has an incredible amount of experience and expertise in the security arena with a professional approach to every project. From the original risk assessment to the development and execution of a security roadmap, GreyCastle Security was able to walk us through this process which has greatly enhanced our security posture.

Dan L., Information Systems Manager, Credit Union, Rochester, NY

We have worked with several companies in the past and GreyCastle Security has by far been the most enjoyable to work with. Thank you for your commitment in assisting companies to improve security.

Meridith M., Director, Information Technology, Assisted Living Facility, Cabot, PA

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