Top Washington, DC Startups (1,097)

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...

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...

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.

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,...

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...

Optimity Advisors supports healthcare payers, providers and pharmacies to navigate industry changes, deliver high-quality care, maximize value and contain costs. Our systematic, collaborative approach and deep healthcare operations experience mean we’ve not only been there and done that, but we’re helping our clients redefine where they’re headed in a continually changing landscape.

We are economic experts with a depth of experience in both litigation and consulting across a wide range of practice areas. We bring focus, efficiency and value to our clients. And we always present our findings clearly, logically, and on time. It all adds up to clients who come back to us again and again.

Founded in 2007, M9 Solutions is a fast-growing small business dedicated to providing IT services and solutions to the Federal Government. We focus on developing and delivering robust, secure, and stable technology solutions across multiple core capabilities to include software development, cloud migration and infrastructure, cybersecurity, data delivery, and data analytics. M9 is DELIVERING THE DIGITAL FUTURE℠ by mobilizing the...

Castro & Company is an audit, advisory, and accounting services CPA Firm specializing in providing the personalized services of a small firm with the full resources and quality expected from a larger CPA firm. We are minority-owned and located in the Washington, DC metropolitan area. Castro & Company holds certifications for Federal contracting under the Small Business Administration Certification 8(a) Business...

Social Driver is a digital agency trusted by the world's leading corporations and nonprofit organizations for strategic solutions for social media, websites, and digital marketing. We have experience working with hundreds of clients, world-class expertise in digital and social media, and a culture of long-term client partnerships. Social Driver is headquartered in Washington, DC with additional teams in Bellingham, WA, Chicago,...

We are communicators, marketers, fundraisers, and campaigners who unleash the power of people to do good. We work exclusively with nonprofits fighting for a just and sustainable world.

Power to Decide is a national nonprofit, nonpartisan organization working to ensure that all people—no matter who they are or where they live—have the power to decide if, when, and under what circumstances to get pregnant and have a child. We envision a world where everyone has access to the information, resources, and care they need to live their best life....

Heartbeat Health is a venture-backed health tech startup in New York. We are working to deliver the most effective, efficient, and engaging virtual heart care in the world. By 2030, over 40% of the US population will have heart disease, with direct and indirect costs approaching $1 trillion USD. Heart disease may be the most important health crisis we confront...

Speak4 is a technology start-up that makes it simple for organizations to empower their supporters to speak up for the causes they believe in via an innovative, frictionless digital advocacy platform. Speak4 was created by a team of experienced marketers, skilled technologists and award-winning digital strategists who wanted a better tool to help organizations mobilize grassroots support online.

Atlas Technica (https://www.atlastechnica.com) is an IT Service Provider specializing in hedge funds and alternative investment industry. Our objective is to provide the best service in the industry allowing hedge fund managers to focus on investing. Our services include infrastructure architecture and support, technology audit, disaster recovery planning and vCTO Services. Place IT on our shoulders.

Regardless of an organization’s mission, manual and time-consuming business processes are still common. Leverage our services to access, analyze, and share your data in a way that helps you make timely business and mission decisions. Core Capabilities: Change Information and processes that are relevant today can be deemed useless and outdated in a short period of time. An organization must become more agile...

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...

Anzu Partners is a venture capital and private equity firm that invests in breakthrough industrial technologies. We team with entrepreneurs to develop and commercialize technological innovations by providing capital and deep expertise in business development, market positioning, global connectivity, and operations. Anzu Partners has offices in Washington, DC, San Diego, CA, Boston, MA, and Tampa, FL.

Umbra builds next-generation space systems that observe the Earth in unprecedented fidelity. Our mission: Deliver global omniscience. To stay ahead of climate change, geopolitical risk, and other major crises and issues, we need a global understanding of what is changing, where, and how fast. Umbra provides easy access to the highest quality commercial satellite data available, which is an indispensable tool for...