Top Washington, DC Startups (1,253)

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...

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,...

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...

We are the Credit Union’s one-stop-shop for digital deposit account opening, frictionless loan applications (POS), perpetual pre-approval and recapture efforts. The platform successfully drives direct member, loan & deposit growth, boosts profitability, increases share of wallet and reduces the cost to produce loans through efficiency gains. Our founders enjoy nothing more than speaking to and learning from Credit Union leaders....

The leading force in the Microsoft cloud, Cloudforce creates, migrates, and maintains custom cloud solutions for businesses and government. In every engagement, Cloudforce serves as a trusted partner to help clients define and refine their technology needs. Cloudforce then crafts and deploys accessible, scalable, and secure solutions to help clients manage and grow their business in efficient and innovative new...

Endgame makes it easy to observe what’s happening in your trial or free motion, prioritize sales-ready accounts and users based on behavioral signals, and act on them to drive more revenue faster. Our product works by analyzing events from a number of data sources, including product adoption, user behavior, transactional data, sales activity, and more to enable: Real-time observability. Revenue teams...

Digital twins are revolutionizing industries from aerospace to agriculture. Istari Digital makes them simple and more secure, unlocking models and simulations for better products - better everything. A faster, cheaper, greener digital future awaits. With Istari Digital, simple and secure collaboration finally comes to software-enabled physical systems, empowering your team with internet-like possibilities.

ICA is an innovative force driving transformative solutions for prestigious institutions like the U.S. Food and Drug Administration (FDA), Centers for Medicare & Medicaid Services (CMS), Agency for Healthcare Research and Quality (AHRQ), and Federal Aviation Administration (FAA). Our dedication to cutting-edge technology and impactful partnerships has established us as an essential collaborator in the AI, analytics, and research landscapes. Our...

CleanChoice Energy is a clean energy supplier whose mission is to make 100% renewable energy available to everyone.

We are a small team of developers and visual communicators. We love Drupal. We are vet owned & DC DSLBD Certified.

D2 Consulting provides services to the Federal Government focused in the following three area's We leverage D2 Consulting engineering, operations and governance best practices to efficiently and effectively deploy, maintain and continuously improve IT services and solutions. This includes not only engineering solutions such as VDI and providing direct support to operations but also deploying the tools to instrument and maintain...

Givebutter is the most-loved nonprofit fundraising platform, empowering millions of changemakers to raise more, pay less, and give better. Nonprofits use Givebutter to replace multiple categories of tools, including donation forms, fundraising campaigns, events, auctions, donor management (CRM), email, texting, and more—all for free, thanks to a 100% transparent tip-or-fee model. As the #1 rated nonprofit software company on G2...

WHO WE ARE: Data Society provides industry-tailored, high-quality data science training and advisory services for corporations and government agencies with a desire to make data driven decisions. We believe that modern organizations need to be equipped to make data driven decisions that significantly amplify the effects of existing subject matter expertise. These skills result in increased efficiency and more accurate analyses...

Organizations of all sizes depend on Prelude to know with certainty that their defenses will protect them against the latest threats. Prelude's security control validation platform provides the essential and continuous visibility into the state of your security controls, their configuration, and how they map against the latest threats. With actionable insights into how to maximize the tools you already...

Founded in 2007, Corner Alliance is a government consulting firm that serves federal clients primarily in the public safety, emergency management and business intelligence spaces. Corner Alliance is a company where your mission matters, driving change in government through stakeholder-centered solutions, innovative ideas and client loyalty.

The Messina Group (TMG) is a full-service consulting firm that helps our clients win good fights and change the world, harnessing the power of data-driven, political campaign strategies to achieve victory in the corporate, advocacy, and political spheres.

Synectics is a client-focused research, statistics, technology, and data science consulting firm devoted to “making data meaningful.” We are a blend of academics and technicians who support federal agencies and other clients. Our core expertise includes IT for grants management; IT for public health databases; application development; data warehousing; and business intelligence. Our grants modules have securely processed over $75...

The world’s largest provider of companies, their key people, and their most important relationships. From financial intelligence to anti-counterfeiting, and from free trade zones to war zones, Sayari powers cross-border and cross-lingual insight into customers, counterparties, and competitors. Thousands of analysts and investigators in over 30 countries rely on our products to safely conduct cross-border trade, research front-page news stories,...

540 is a technology consulting firm who helps our government and business clients innovate like start-ups. Through hard work, perseverance, and deep commitment we remove barriers to innovation which enables us to build impactful tech for the government. Contact us for: - Tech Strategy - Software Development - API Design / Dev - DevOps Email us: [email protected]

Hiring a Human Resource Manager to navigate your business through the web of laws can be very expensive and time consuming. Sage Solutions can provide your start-up, or small to medium-sized business, with just the right services you need without breaking the bank. We focus on three distinct services offerings: 1. Compliance Solutions, 2. Human Resource Solutions, and 3. Individual Services...