G

Greystones Group

Cybersecurity, software, data management for DoD

Overview

Greystones Group provides mission-focused IT and cybersecurity services to DoD and federal agencies. It delivers cybersecurity operations, threat analysis and assessment, software development, data management, and multinational interoperability planning. Their solutions are built by adapting best practices and technologies from the commercial sector to military and government needs, and are implemented through defined requirements, rigorous development processes, and a focus on interoperability. The company differentiates itself as a Woman Owned Small Business with ISO 9001:2015 and CMMI DEV 3 certifications, a track record across the US Navy, Army Cyber Command, ANG, ONR, GSA, and IRS, and a emphasis on practical, cost-effective, mission-oriented outcomes. Its goal is to help clients achieve mission success and material readiness by addressing security and readiness challenges with reliable, standards-compliant solutions.

Significant Headcount Growth

Work here?Claim your company

About Greystones Group

Simplify's Rating
Why Greystones Group is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

Washington DC, District of Columbia

Founded

2000

Get referred to Greystones Group

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • NAVSEA awarded Greystones up to $28 million on June 24, 2026.
  • Greystones landed ASNE FMMS 2026 and NAML 2026 speaking slots this year.
  • Garrett Sharesky joined July 27, 2026, strengthening operations for growth execution.

What critics are saying

  • Greystones sells into DoD budgets; one Navy protest or recompete can freeze revenue.
  • ARL and NAVSEA concentrate customer power; delayed transition to production will cap margins.
  • If Greystones misses a prime award by 2027, it stays a niche subcontractor.

What makes Greystones Group unique

  • Greystones pairs Soleite AI data orchestration with air-gapped, contested-environment Army modernization work.
  • Its March 23, 2026 ARL CRADA puts proprietary tools inside live-virtual-constructive experimentation.
  • ASNE selected Greystones' September 16, 2026 AI-maintenance paper for Navy-facing credibility.

Help us improve and share your feedback! Did you find this helpful?

Growth & Insights and Company News

Headcount

6 month growth

23%

1 year growth

23%

2 year growth

20%
Greystones Group
Sep 16th, 2026
Greystones Group technical paper selected for presentation at the American Society of Naval Engineers Fleet Maintenance & Modernization Symposium 2026.

Greystones Group technical paper selected for presentation at the American Society of Naval Engineers Fleet Maintenance & Modernization Symposium 2026. WASHINGTON, D.C. - Sept. 16, 2026 - Greystones Group, a woman-owned small business delivering innovative digital solutions to the United States military and civilian federal government, today announced that its technical paper has been accepted for presentation at the American Society of Naval Engineers (ASNE) Fleet Maintenance & Modernization Symposium (FMMS) 2026. The paper describes a reference architecture for applying AI to maintenance processes, schedules, and technical data supporting distributed and unmanned maritime assets, including unmanned vessels (UVs). The paper is presented in general terms and does not describe any fielded system, program of record, or customer environment. It reflects Greystones' ongoing independent research investment in data-driven sustainment and readiness, an area in which the company applies proven AI and machine learning technologies to reduce operator cognitive load and enable better, faster decisions. "Sustainment is one of the areas where AI can make the most immediate difference, and FMMS is the right forum to work through how," said Sheila Duffy, CEO and Founder of Greystones Group. "As the fleet's reliance on unmanned vessels grows, so does the need for maintenance and readiness approaches built specifically for these platforms. We're proud to share our technical perspective with the naval engineering community and to contribute to the conversation on how technology can accelerate fleet readiness." FMMS 2026 will take place September 22-24, 2026, at the Virginia Beach Convention Center in Virginia Beach, Virginia, under the theme "From Foundry to Fleet: Delivering Readiness & Capability." The symposium brings together the U.S. Navy, U.S. Coast Guard, U.S. Marine Corps, Military Sealift Command, industry, academia, and the broader naval ship maintenance and modernization community for an open exchange of technical information on ship maintenance and modernization. The FMMS agenda features senior military keynotes, industry speakers, panels, an Innovation Theater, and technical paper presentations. The FMMS selection adds to a period of growing momentum for Greystones in naval maintenance and modernization. The company continues to invest in research and development of AI-enabled maintenance tracking and data analytics capabilities for distributed and unmanned maritime systems, and was selected earlier this year to present at the Naval Applications of Machine Learning (NAML) 2026 conference. About Greystones Group Greystones is a certified WOSB, headquartered in Washington, DC. Greystones Group is proud to support its Nation's Defense and Critical Infrastructure Agencies by providing mission-focused solutions and services that ensure mission success. Greystones provide rapid DevSecOps and proven artificial intelligence solutions for mission critical systems to reduce operators' cognitive load, and allow for better, faster decisions. For media inquiries, please contact: Maria Bradley Greystones Group 415-509-0498

Greystones Group
Jul 28th, 2026
Driving innovation beyond the lab: John Hopkin selected as panelist for Doolittle Institute's Innovation Discovery Event 2026.

Driving innovation beyond the lab: John Hopkin selected as panelist for Doolittle Institute's Innovation Discovery Event 2026. Greystones Group is proud to congratulate John Hopkin, its Chief Operating Officer, on being selected to serve as a panelist at the Doolittle Institute's Innovation Discovery Event 2026, taking place on July 23, 2026, in Niceville, Florida. The Doolittle Institute's Innovation Discovery Events are designed to accelerate the transition of emerging technologies from research to real-world application. These events bring together federal researchers with experts from industry, academia, government, small businesses, and the entrepreneurial community to evaluate innovative concepts and identify opportunities for technology commercialization and operational use. As a panelist, John will collaborate with fellow experts to evaluate promising technologies and engage directly with the innovators developing them. His responsibilities include: * Reviewing and assessing innovative concepts and proposals * Providing feedback through discussions with researchers and technology developers * Identifying practical applications, commercialization opportunities, and pathways for successful technology transition Innovation is most impactful when groundbreaking ideas can move beyond the laboratory and into the hands of the organizations that need them most. Events like the Innovation Discovery Event play a critical role in connecting researchers, industry leaders, and government stakeholders to accelerate that process. John's participation reflects Greystones Group's continued commitment to advancing defense innovation, supporting technology transition, and helping deliver mission-critical capabilities to its government partners. Greystones Group congratulate John on this opportunity to contribute his expertise and look forward to the innovations and collaborations that emerge from this year's event.

Intelligence Community News
Jul 27th, 2026
Garrett Sharesky joins Greystones Group.

Garrett Sharesky joins Greystones Group. 0 Comments On July 27, Greystones Group announced that Garrett Sharesky has joined the company as director of operations. In this role, Sharesky will help lead operational strategy and execution, strengthen organizational performance, and support the company's continued growth across the Department of Defense and federal government markets. Sharesky brings extensive executive leadership experience in strategic growth, program execution, business development, and operational excellence. Throughout his career, he has led complex engineering, cybersecurity, software, and information technology portfolios while helping organizations expand capabilities, pursue new opportunities, and deliver innovative solutions in support of critical government missions. "Garrett brings an exceptional combination of operational leadership, federal market expertise, and a strong commitment to mission success," said Sheila Duffy, CEO, Greystones Group. "His experience and collaborative leadership approach will be a tremendous asset as Greystones continues to grow, strengthen our operations, and deliver innovative solutions to our customers." As director of operations, Sharesky will play a key role in advancing Greystones Group's strategic priorities, supporting program performance, and strengthening the operational foundation needed to position the company for sustained growth and long-term success, the company said. Keep up with your competitors by following notable executive moves across the IC contracting space - become a paid subscriber to IC News.

Greystones Group
Jul 27th, 2026
Greystones Group welcomes Garrett Sharesky as Director of Operations.

Greystones Group welcomes Garrett Sharesky as Director of Operations. Washington, D.C. - July 27, 2026 - Greystones Group, a woman-owned small business delivering innovative digital solutions to the United States military and civilian federal government, is pleased to announce that Garrett Sharesky has joined the company as Director of Operations. In this role, Garrett will help lead operational strategy and execution, strengthen organizational performance, and support the company's continued growth across the Department of Defense and federal government markets. Garrett brings extensive executive leadership experience in strategic growth, program execution, business development, and operational excellence. Throughout his career, he has led complex engineering, cybersecurity, software, and information technology portfolios while helping organizations expand capabilities, pursue new opportunities, and deliver innovative solutions in support of critical government missions. "Garrett brings an exceptional combination of operational leadership, federal market expertise, and a strong commitment to mission success," said Sheila Duffy, CEO, Greystones Group. "His experience and collaborative leadership approach will be a tremendous asset as Greystones continues to grow, strengthen our operations, and deliver innovative solutions to our customers." With deep expertise in federal acquisition, capture strategy, program execution, and organizational transformation, Garrett has a proven ability to translate strategic vision into measurable results. He is recognized for building high-performing teams, aligning organizational priorities with customer mission objectives, and driving both financial and operational performance. As Director of Operations, Garrett will play a key role in advancing Greystones Group's strategic priorities, supporting program performance, and strengthening the operational foundation needed to position the company for sustained growth and long-term success. About Greystones Group Greystones Group is a certified Woman Owned Small Business headquartered in Washington, DC. Greystones Group is proud to support its Nation's Defense and Critical Infrastructure Agencies by providing mission-focused solutions and services that ensure mission success. Greystones Group provide rapid DevSecOps and proven artificial intelligence solutions for mission critical systems to reduce operators' cognitive load, and allow for better, faster decisions. For media inquiries, please contact: Maria Bradley Greystones Group 415-509-0498

Greystones Group
Mar 27th, 2026
Army Research Lab, Greystones partner to advance AI for LVC Toolkit.

Army Research Lab, Greystones partner to advance AI for LVC Toolkit. Executive Gov highlights Greystones partnership with Army Research Lab to advance AI for LCV Toolkit through a cooperative research and development agreement (CRADA). Read more here.

Recently Posted Jobs

Sign up to get curated job recommendations

Greystones Group is Hiring for 2 Jobs on Simplify!

Find jobs on Simplify and start your career today

Don't see your dream role? Check out thousands of other roles on Simplify. Browse all jobs