Top Washington, DC Startups (1,075)

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...

DSPolitical brings together the best data-driven targeting science with a multi-layered advertising strategy to help your campaign find the exact right people online every time. With the richness of television and the targeting ability of direct mail, your online advertising campaign will make a real impact on election day.

Objectstream is an IT company specializes in internet,information technology and information Services.

TechOp Solutions provides technology and operational solutions to senior decision makers in federal, state and local governments, as well as private enterprises who must maintain situational awareness, collect critical information, strictly adhere to privacy and make timely risk-mitigated decisions despite the pressures of time and circumstance. In support of this mission, we are committed to providing our clients with levels...

We’re a media company that publishes stories about our changing world, for people who want to have a hand in changing it. Each day, we release new videos and articles featuring passionate innovators who are solving humanity’s biggest challenges by thinking differently. From aerospace engineers in the Mojave Desert to entrepreneurs in South America’s biggest slum, our videos give you...

GiveCampus is the world’s leading fundraising platform for nonprofit educational institutions. Trusted by more than 1,000 colleges, universities, and K-12 schools, our mission is to advance the quality, the affordability, and the accessibility of education. We provide software, services, and expertise that help schools raise more money, from more people, at a fraction of the cost of other fundraising methods....

Via Logic LLC provides DevSecOps and solution architecture services for digital transformations in the commercial and government sectors. With a proven track record in information technology (IT) modernization to rapidly support business and process optimization.

Middle Seat is a full-service media and fundraising firm for progressive causes and candidates. We’re writers, designers, coders, and strategists passionate about making real change. Whether you’re looking to engage supporters or reach new audiences, you can count on us to run smart, authentic campaigns that drive results. We’re proud to be the first media and fundraising firm to join the Campaign...

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.

BGA is a strategic advisory firm that specializes in the Indo-Pacific. From Islamabad to Suva and Auckland to Tokyo and everywhere in between, we apply unmatched expertise and experience to help clients interpret the world’s most complex and dynamic markets, providing actionable intelligence to implement strategies, expand business, resolve problems and do great things in Asia. BGA is a founding...

From digital capacity building to counter-messaging campaigns, we use data-proven techniques to ensure our clients respond to online harms effectively.

Hickok Cole is a forward-focused design practice connecting bold ideas, diverse expertise, and partners with vision to do work that matters. Informed by research and fueled by creative rigor, we look beyond today’s trends to help our clients embrace tomorrow’s opportunities. Whether designing complex mixed-use projects, bringing your brand to life, or reinvigorating your workplace, we want to have an...

Unlock the Art of the Possible with Aviture. As your trusted partner in innovation, we specialize in engineering, business solutions, and custom software solutions — empowering organizations to dream bigger, move faster, and build better

We’re Personified, the IT + cybersecurity provider for impactful organizations. We provide mission-critical support for our clients' critical missions.

Democracy Docket is the leading digital news platform dedicated to information, analysis and opinion about voting rights and elections in the courts. Founded in 2020, Democracy Docket is the leading digital news and information platform covering voting rights, elections, and the courts — from an unapologetically pro-democracy standpoint. Tracking election and democracy litigation is central to our mission. But today’s battles...

Preventive Measures is dedicated to enhancing the lives of thousands across Washington D.C., Pennsylvania, New Jersey, and Georgia. Our CARF-accredited Mental Health Wellness Centers and Home Health Care services offer a holistic approach to mental health, treating the whole person. We provide care through a diverse team of licensed providers fluent in both English and Spanish. Additionally, our support network...

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...