Top Washington, DC Startups (1,096)

Nisos is a human risk intelligence and managed investigations company that protects organizations and their people from human-driven and digital threats by operating as an extension of their security, intelligence, and legal teams. It leverages a team of expert analysts, specialized in open-source intelligence and adversary tradecraft, to provide actionable intelligence that addresses complex risks like executive threats, insider fraud,...

ASI is a dual-use software company that deploys predictive AI to the world's most complex operating environments. Backed by leading investors–including Andreessen Horowitz, Renegade Partners, and Spark Capital–we actively manage over 40% of all US air traffic across both public and private sector air operations. Partnering with major airlines like United and Alaska, we optimize thousands of flights daily, delivering...

MORSE is a specially selected team of scientists, engineers, and software developers who use asymmetric and unconventional approaches to deploy practical solutions that solve difficult multi-disciplinary problems faced by the US National Security Ecosystem.

Bellagent is an enterprise-level AI agent platform built to automate everyday business operations with zero-touch integrations that connect instantly to more than 1,300 applications. Launched in 2025 by Proactifi Inc., and headquartered in Chicago, the platform is built for practicality with industry-leading compliance and security standards, enabling organizations to deploy AI agents without friction from day one. Bellagent’s mission to...

https://www.youtube.com/@northslope-technologies At Northslope, we believe that purpose-built AI products in the hands of business operators create far more value than slide decks or off-the-shelf software. That’s why we partner with ambitious organizations to transform entire industries through Palantir’s Foundry and AIP platforms—delivering powerful, measurable outcomes in weeks, not years. We operate more like a product startup than a traditional services firm. Our...

DNSFilter is redefining how organizations secure their largest threat vector: the Internet itself. DNSFilter is making the Internet safer and workplaces more productive by blocking threats at the DNS layer. DNSFilter resolves upwards of 130 billion daily queries. With 79% of attacks using Domain Name System (DNS), DNSFilter provides the world’s fastest protective DNS powered by AI, blocking threats an...

GDI takes a growth engineering approach to the creation and expansion of select ideas, organizations, and initiatives that address urgent global problems. We provide structured pathways over 2-3 years to support the achievement of critical step-changes necessary for ideas and organizations to move to the next level. We support the implementation of a strategic plan and then transition to a clear...

The American Action Forum is a forward-looking policy institute dedicated to keeping America strong, free and prosperous. It seeks to promote common-sense, innovative, and solutions-based policies that will reform government, challenge out-dated assumptions, and create a smaller, smarter government that will serve its citizens better. We will use the modern tools of communications to deploy ideas; engage Americans in the...

617MediaGroup is a fast-growing, full service, progressive communications firm headquartered in Massachusetts. We specialize in providing public relations, marketing, digital content curation, and advertising services to a select group of local and national clients. Our clientele consists primarily of progressive advocacy groups, trade associations, labor unions, and more. We are proud to serve a diverse array of organizations whose missions...

It starts with a goal: yours. Our diverse backgrounds and unique experiences let us view your issue from every possible angle — understanding the audience, anticipating the reaction and capturing the opportunity. The result? A fully-integrated, creative campaign strategy backed by powerful, human-centered insights. We listen. We strategize. We create. We move. We are VOX Global.

nteractive Strategies is a boutique digital agency whose strength lies in understanding the complex relationship that exists between strategy, design, content, usability, technology and marketing. By addressing each of these areas equally, we create meaningful web experiences that provide a measurable return for our clients. Each principal at Interactive Strategies comes from a large agency background where they helped shape online...

Zetier develops world-class cybersecurity products that protect our nation and our communities.

TriTech Enterprise Systems, Inc., is an Information Technology (IT) Consulting company committed to increasing the competitive advantage of our clients by providing cutting edge solutions through innovation, research and the application of emerging technologies. Consulting Services TriTech provides consulting services to both large and small clients in the federal, state and local arenas. We provide detailed solutions in: Website Design, Online Store,...

The world’s first news platform designed to meet the moment we are in. Providing an unparalleled level of journalistic transparency, cutting through the noise of the news cycle with smart, distilled views and exploring competing perspectives across borders for a curious, global audience. Sign up for our newsletters:

Arcadia's clean energy tech platform gives everyone easy access to clean energy. Arcadia members have access to a mobile-optimized online dashboard where they can manage their account, track their account activity, and view their energy usage all in one place. Arcadia's digital transformation of the traditional energy utility gives individuals greater control over what energy they support, how much it...

We are a small company that has a big impact on the world. We are global leaders in artificial intelligence and scientific research and development solutions. We advance science and technology to empower global innovation and solve the world’s challenges. We do this by developing innovative open source software platforms and integrating them into research, processes, and products. CMake, ParaView,...

The U.S. Dairy Export Council represents dairy farmers, processors, cooperatives, ingredient suppliers and export traders. Our mission is to enhance U.S. competitiveness in global dairy markets

ShorePoint recognizes that cybersecurity is the challenge of our generation. Our vision is to be the premier provider of cybersecurity services, delivering a security model capable of keeping pace with today’s rapidly changing landscape. ShorePoint is a privately-held cybersecurity services company with the experience and capabilities needed to help public and private sector clients protect their most critical assets from...

LightFeather is a Woman Owned Small Business (WOSB) and Service Disabled Veteran Owned Small Business (SDVOSB). We are a forward leaning and edgy startup that is ready to change the world and improve the federal government, one organization at a time. We don’t just stay on the cutting edge, we push the edge further. LightFeather was founded in 2018 to be...

VIA helps governments, regulators, and power companies deliver $200Bn in energy every year to more than 100 million customers. VIA’s privacy-preserving analytics software, Trusted Analytics Chain™ (TAC™) reduces the cost and improves the quality of service of electricity transmission and distribution using AI and blockchain technologies. TAC™ (patents pending) is the bridge that securely connects power company data, distributed across...