Insights

Acquisition Context GreyCastle Security was acquired by DeepSeas around December 2023, signaling a potential strategic shift, integration opportunities, and extension of security offerings or enterprise client access that can be leveraged for cross-sell or partner-driven solutions.

Managed SOC Introduction The launch of a Managed Security Operations Center indicates a readiness to adopt outsourced or managed security services, presenting an opportunity to position GreyCastle as a preferred provider for ongoing monitoring, incident response, and threat intelligence services.

SMB to Mid-Market Revenue and employee scale suggest GreyCastle operates in the small to mid-market segment with a potential complexity gap in larger enterprises, presenting sales focus on mid-market organizations seeking targeted, scalable cybersecurity programs and governance support.

Industry Partnerships Past collaboration with Blacks In Cybersecurity and emphasis on board-level communication readiness indicate a value proposition aligned with diverse, inclusive tech ecosystems and regulated environments, offering a path to enterprise clients with governance and compliance needs.

Growth Signals Historical growth recognition and leadership changes, along with a steady focus on standards-based processes, suggest opportunities to engage with organizations prioritizing security maturity frameworks, audits, and compliance-driven roadmaps.

Similar companies to GreyCastle Security

GreyCastle Security Tech Stack

GreyCastle Security uses 8 technology products and services including Adobe Creative Cloud, Amazon Web Services, PostgreSQL, and more. Explore GreyCastle Security's tech stack below.

Media & News

GreyCastle Security's Email Address Formats

GreyCastle Security uses at least 4 email formats:
GreyCastle Security Email FormatsExamplePercentage
FLast@greycastlesecurity.comJDoe@greycastlesecurity.com
93%
LastFi@greycastlesecurity.comDoeJo@greycastlesecurity.com
3%
First.Last@greycastlesecurity.comJohn.Doe@greycastlesecurity.com
2%
F.Last@greycastlesecurity.comJ.Doe@greycastlesecurity.com
2%

Frequently Asked Questions

What is GreyCastle Security's phone number?

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You can contact GreyCastle Security's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is GreyCastle Security's official website and social media links?

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GreyCastle Security's official website is greycastlesecurity.com and has social profiles on LinkedIn.

How much revenue does GreyCastle Security generate?

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As of July 2026, GreyCastle Security's annual revenue is estimated to be $1M - $10M.

What is GreyCastle Security's NAICS code?

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GreyCastle Security's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does GreyCastle Security have currently?

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As of July 2026, GreyCastle Security has approximately 69 employees across 1 continents, including North America. Key team members include Chief Privacy Officer: D. R., Chief Financial Officer: H. C. and Chief Operating Officer: T. H. Explore GreyCastle Security's employee directory with LeadIQ.

What industry does GreyCastle Security belong to?

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GreyCastle Security operates in the Computer and Network Security industry.

What technology does GreyCastle Security use?

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GreyCastle Security's tech stack includes Adobe Creative Cloud, Amazon Web Services, PostgreSQL, Google Workspace, CrowdStrike, Microsoft Azure, Salesloft and Microsoft Teams.

What is GreyCastle Security's email format?

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GreyCastle Security's email format typically follows the pattern of FLast@greycastlesecurity.com. Find more GreyCastle Security email formats with LeadIQ.

When was GreyCastle Security founded?

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GreyCastle Security was founded in 2011.
GreyCastle Security logo

GreyCastle Security

Computer and Network SecurityNew York, United States51-200 Employees

GreyCastle Security operates in the computer and network security sector, focusing on protecting clients from emerging cyber threats through solutions designed for continuous availability, alignment, quality, and satisfaction. The company emphasizes a cyber-focused approach, aiming to safeguard data, employees, and organizational reputation, and it strives to simplify cybersecurity planning so boards, auditors, and stakeholders can understand and communicate a roadmap.
Headquartered in Troy, New York, GreyCastle Security serves organizations seeking proactive, standards-based security practices. Its position in the industry centers on delivering consistent readiness and a proven process that exceeds common industry benchmarks, with services and programs that support ongoing cyber defense and compliance requirements.

Section iconCompany Overview

Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2011
Employees
51-200

Section iconFunding & Financials

  • $1M - $10M

    GreyCastle Security's revenue is estimated to be in the range of $1M - $10M

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