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Top Washington DC, Security Companies (175)

Aerospace • Hardware • Information Technology • Security • Software • Cybersecurity • Defense
19 Offices
40,000 Employees

Improving the future and protecting lives is an ambitious mission, but it’s what we do. As a leading aerospace, defense, and security company, we work together to deliver a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. How we work, is rooted in purpose – a purpose to protect those who protect us, to unite our community of colleagues and customers, and to drive forward the growth and development of our exceptional team members. It's where purpose connects.


Aerospace • Artificial Intelligence • Hardware • Robotics • Security • Software • Defense
8 Offices
1,400 Employees

Anduril is a defense products company. Unlike most defense companies, we don’t wait for our customers to tell us what they need. We identify problems, privately fund our R&D and sell finished products off the shelf. Ideas are turned into deployed capabilities in months, not years.


Cloud • Professional Services • Security • Analytics • Consulting • Utilities • Renewable Energy
10 Offices
2,000 Employees

West Monroe is a global business and technology consulting firm passionate about creating value for our clients. We co-create solutions that accelerate results now and prepare industries to tackle what’s next. We’re excited by the possibilities that technology creates. We work with our clients to deliver on the possible, building on their goals, generating fresh insights and creating inspiring outcomes. We excel at the intersection of industry, strategy, people and technology—always driving rapid impact. Our all-in approach comes from our unique employee ownership structure. Our clients’ success is our success. From the beginning, our growth has come from putting people at the center. Fortune and USA Today consistently celebrate West Monroe as a top workplace, and we’re recognized as a leading consultancy by Forbes and Forrester.


Cloud • Information Technology • Security • Software • Cybersecurity
9 Offices
3,900 Employees

Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business. Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.


Cloud • eCommerce • Information Technology • Security • Software • Cybersecurity • Data Privacy
3 Offices
615 Employees

ID.me simplifies how individuals prove and share their identity online. The ID.me secure digital identity network has over 100 million members with over 70,000 individuals joining daily, as well as partnerships with 31 states, multiple federal agencies, and over 500 name brand retailers. The company provides identity proofing, authentication and group affiliation verification for organizations across sectors. The company's technology meets the highest federal standards and is approved as a NIST 800-63-3 IAL2 / AAL2 conformant credential service provider by the Kantara Initiative. ID.me is the only provider with video chat and in-person verification, increasing access and equity. The team is committed to "No Identity Left Behind" to enable all people to have a secure digital identity. Our Mission is to make the world a more trusted place by delivering the highest level of security with the least amount of friction at the lowest possible cost.


Big Data • Cloud • Security • Software • Database • Cybersecurity • Data Privacy
3 Offices
180 Employees

Since 2015, Immuta has given Fortune 500 companies and government agencies around the world the power to put their data to work – faster and more safely than ever before. Our platform delivers data security, governance, and continuous monitoring across complex data ecosystems – de-risking sensitive data at enterprise scale. From BI and analytics, to data marketplaces, AI, and whatever comes next, Immuta accelerates safe data discovery, collaboration, and innovation. For more information, visit immuta.com.


Artificial Intelligence • Cloud • Information Technology • Sales • Security • Software • Cybersecurity
14 Offices
2,400 Employees

We do this by embracing tenacity, passion, and collaboration to challenge what’s possible and drive extraordinary impact. Here, we’re building a dynamic workplace where everyone can have the career experience of a lifetime. We challenge ourselves to grow to our full potential. We learn from our missteps and celebrate our victories. We come to work every day to push boundaries in cybersecurity and keep our 11,000+ global customers ahead of whatever’s next.


Cloud • Information Technology • Sales • Security • Cybersecurity
24 Offices
10,000 Employees

CrowdStrike has redefined security with the world’s most advanced cloud-native platform that protects and enables the people, processes and technologies that drive modern enterprise. Tested and proven, the world's largest organizations trust CrowdStrike to stop breaches with unparalleled protection against the most sophisticated cyberattacks. The CrowdStrike culture has been built upon our Core Values since the day we began. We are Fanatical About the Customer, Relentlessly Focused on Innovation and believe that our Limitless Passion drives Unlimited Potential for every CrowdStriker. As a purpose-built remote-first company, we believe cultivating a connected culture for every employee, no matter where they are in the world, is a key ingredient in building a high-performing, diverse team. We don’t have a mission statement. We’re on a mission—to stop breaches. Ready to join a mission that matters?


Professional Services • Security • Consulting • Cybersecurity • Data Privacy
2 Offices
78 Employees

Nisos is The Managed Intelligence Company™. We provide actionable intelligence services to solve critical “who, what, why, how” questions, helping to address the Fortune 2000’s unique security challenges and digital business risks. Our team solves your most complex security challenges. We deliver smarter defense and more effective responses against advanced cyber attacks, disinformation, and abuse of digital platforms. Nisos supports our clients' internal efforts by taking an “outside the firewall” approach. By engaging an “adversarial mindset” – we can support and integrate with our clients' existing security team to attribute actions to adversaries and proactively or reactively help our clients leverage intelligence to make better-informed decisions, controls, and minimize negative impact on their business, brand, and people. We work with our clients' intelligence, fraud, cybersecurity, trust and safety teams – and existing tech stacks – to answer questions, address their specific risks, and inform critical decisions.


Security • Software • Cybersecurity • Data Privacy
2 Offices
125 Employees

Hypori is a mobile access platform enabling secure virtual access to enterprise apps and data from any mobile device with total personal privacy. Use whatever phone you want - it’s all about one device, zero worries. Hypori is a service-disabled veteran-owned small business headquartered in Reston, VA, with a technology hub in Austin, TX.


Cloud • Security • Cybersecurity
Greenbelt, Maryland, USA
185 Employees

T-Rex is a proven mid-tier firm blazing new paths in federal government IT modernization and transformation. T-Rex has been recognized as a “fastest growing company” on the Inc. 5000 list. We leverage deep technical expertise in Systems Integration and Development, Cloud Adoption and Infrastructure Optimization, Cybersecurity, Data Engineering and Analytics, and Mission Critical Services for our public sector clients. T-Rex has designed, built, integrated, and operated some of the world’s largest mission critical systems for our government clients who need to leverage the power of data. We have invaluable experience implementing complex IT modernization projects with critical cyber data protection requirements, aggressive schedules, and complex size and scale. We foster innovation, while mitigating risk, saving time and money, and improving benefit-to-cost ratios. T-Rex is always seeking experts to join our growing team of professionals. We have built a broad client base through our dedication to delivering quality products, providing excellent customer service, and attracting top-notch talent. We are committed to maintaining a culture that supports the development of every employee's personal and professional lives. Discover opportunities that can hone your skills and challenge you to solve complex client problems in new and innovative ways: • Systems Integration and Development – ensuring full continuity of operations and processes, while managing the data and systems migration. • Cloud Adoption and Infrastructure Optimization – Paving the way for our government’s transformation with powerful technology solutions. • Cybersecurity – Keeping ahead of the bad actors on the largest, most challenging government projects. • Data Engineering and Analytics – Helping clients leverage the benefits of big data to achieve mission critical objectives. • Mission Critical Services – Providing both strategic and operational support for mission critical, large-scale IT initiat


Security • Software
Arlington, Virginia, USA
64 Employees

Data privacy management made simple. Solve the most pressing challenges of GDPR, CCPA & prepare to meet evolving privacy laws around the world. See how.


Big Data • Cloud • Security • Software • Analytics
Columbia, Maryland, USA
21 Employees

GliaCell Technologies focuses on Software & System Engineering in Enterprise and Cyber Security solution spaces. We excel at delivering stable and reliable software solutions using Agile Software Development principles. These provide us the capability to deliver a quick turn-around using interactive applications and the integration of industry standard software stacks. GliaCell’s Enterprise capabilities include Full-Stack Application Development, Big Data, Cloud Technologies, Analytics, Machine Learning, AI, and DevOps Containerization. We also provide customer solutions in the areas of CND, CNE, and CNO by providing our customers with assessments and solutions in Threat Mitigation, Vulnerability Exposure, Penetration Testing, Threat Hunting, and Preventing Advanced Persistent Threat.


Security • Cybersecurity
Washington, District of Columbia, USA
17 Employees

Gen3 Technology consulting brings nearly 20 years of IT and management experience to clients across the Federal, commercial, and Health IT arenas. We use our technology and management expertise to help our clients execute their mission and achieve their vision. We offer a wide-range of service offerings, including: - Federal IT Services - Program and Project Management - Cyber Security - Privacy


Security • Cybersecurity
McLean, Virginia, USA
205 Employees

Unified Security Operations, Delivered. We tear down the walls between red and blue teams & address risk exposure when it’s discovered—not weeks later. UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as- code platform combines technology innovation and human expertise to make advanced real time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams. By creating continuously optimized identification, detection and resilience from today’s dynamic threat landscape, UltraViolet Cyber provides both managed and custom-tailored unified security operations solutions to the Fortune 500, Federal Government, and Commercial clients. UltraViolet Cyber is headquartered in McLean, Virginia with global offices across the U.S. and in India.


Internet of Things • Security
2 Offices
593 Employees

Armis is the first agentless, enterprise-class security platform to address the new threat landscape of unmanaged and IoT devices. Fortune 1000 companies trust our unique out-of-band sensing technology to discover and analyze all managed, unmanaged, and IoT devices—from traditional devices like laptops and smartphones to new unmanaged smart devices like smart TVs, webcams, printers, HVAC systems, industrial robots, medical devices and more. Armis discovers devices on and off the network, continuously analyzes endpoint behavior to identify risks and attacks, and protects critical information and systems by identifying suspicious or malicious devices and quarantining them. Armis is a privately held company and headquartered in Palo Alto, California.


Information Technology • Security • Design
McLean, Virginia, USA
3,031 Employees

GTT is a managed network and security services provider to global organizations. We design and deliver solutions that leverage advanced cloud, networking and security technologies. We complement our solutions with a suite of professional services and exceptional support teams in local markets around the world. We serve thousands of national and multinational companies with a portfolio that includes SD-WAN, security, Internet, voice and other connectivity options. Our services are uniquely enabled by our top-ranked, global, Tier 1 IP backbone, which spans more than 260 cities on six continents. The company culture is built on a customer-first service experience reinforced by our commitment to operational excellence and continuous improvement in our business, environmental, social and governance practices. For more information, visit www.gtt.net.


Security • Software • Cybersecurity
McLean, Virginia, USA
26 Employees

The world’s first malware hunting SaaS platform designed to detect all variations of malware, known and unknown, without the need for source code or signatures. #LetTheHuntBegin


Security • Cybersecurity
Germantown, Maryland, USA
18,261 Employees

Amentum is a premier global technical and engineering services partner supporting critical programs of national significance across defense, security, intelligence, energy, and environment. We draw from a century-old heritage of operational excellence, mission focus, and successful execution underpinned by a strong culture of safety and ethics. Headquartered in Germantown, Md., we employ more than 20,000 people in 48 states and 28 foreign countries and territories. Visit us at amentum.com to explore how we deliver excellence for our customers’ most vital missions.


Information Technology • Security • Software
Columbia, Maryland, USA
25 Employees

Belay Technologies, Inc. is a certified Service Disabled Veteran Owned Small Business (SDVOSB) located in the Baltimore-Washington area providing technology and engineering services to the Department of Defense (DoD) and expanding into the commercial market. Belay Technologies specializes in technical IT services including; software development, virtualization, systems administration, networking, and testing. Belay continues to expand, and we are always seeking top talent. Belay is more than just a company.....It's a culture. With our work hard, play hard edge and a family-like feel, our employees feel at home with Belay. We are a laid back, fun, innovative team that gets together monthly for lunches, enjoys company parties, bbq's and fun adventures together, and joins in volunteer and charity events as a socially aware company.