Developer Tools Startups

Unabyss builds an AI memory layer that connects to each team member's existing work tools (Gmail, Drive, Slack, Notion, CRM, etc.) and makes that context available to the AI agents they use, while respecting existing access permissions and keeping each person's memory separate and private.

1 investor

Unbound Security builds an Agent Access Security Broker (AASB) that discovers, assesses, and enforces security policies across AI coding agents within organizations. The platform monitors terminal access, MCP server connections, and developer credentials to prevent unauthorized agent actions and data exposure.

1 investor

Understudy Labs offers an open-source toolkit that captures traces from LLM production workflows, benchmarks and A/B tests cheaper or open-weight models against them, and fine-tunes and deploys specialist models that users own and can host anywhere. It is aimed at developers and teams looking to migrate from proprietary LLMs to models they control.

1 investor

Unflow is a content management system that allows product and marketing teams to build and deploy experiences directly within mobile applications without requiring engineering support.

1 investor

Unifii provides custom low-code solutions for digitizing paper and spreadsheet-based business processes, with capabilities for workflow automation, system integration, and mobile-first interfaces designed for operational teams.

1 investor

UNIGINE provides a real-time 3D engine and SDK for development teams building interactive 3D applications, with editions targeting simulation and training, academic R&D, and games/VR development. The company also builds hardware benchmark tools used to test PC component stability under stress conditions.

1 investor

Unikraft provides a cloud infrastructure platform that runs workloads in lightweight, fast-booting virtual machines with VM-grade isolation and sub-10ms cold start times. The platform enables developers to deploy containerized applications with significantly reduced infrastructure costs and high instance density on bare metal, on-premises, or cloud environments.

1 investor

Unimcom is a research and design enterprise focused on self-developed mid-to-small capacity storage chips for applications in consumer electronics, IoT, network communication, intelligent security, industrial control, and automotive electronics. The company builds and delivers integrated solutions across chip design, process optimization, product testing, and market delivery.

1 investor

Uninstall is an Indian company that builds analytics software for mobile app publishers focused on user churn. Its prediction engine draws on historical and behavioral data to flag which users are likely to remove an app in the coming days, so developers can target those users with retention efforts.

1 investor

Unison develops hardware and software tools designed to enhance daily life through intentional computer use, focusing on creation over consumption. The company operates at the intersection of graphics, audio, and art pipeline technologies.

1 investor

Unison is a programming language designed for distributed computing that simplifies writing code for tasks like map-reduce operations and HTTP requests through built-in ability handlers for managing side effects.

1 investor

Unleash BTS provides operations support, advanced engineering, and research & development services to the U.S. Department of Defense and Intelligence Community, including cyber analysis, counter-unmanned systems, cloud computing, and AI/ML applications for national security missions.

1 investor

UNOMi makes a 3D lip sync plugin with built-in markerless motion tracking for use in animation software including Maya, Cinema 4D, Unreal Engine, and Blender. It serves 3D animators and studios in the computer graphics and animation tooling space.

1 investor

Unosquare provides full-cycle digital engineering services and solutions across eight Centers of Excellence for companies in regulated and data-intensive industries. The company serves growing enterprises needing expert software development, user experience design, and product development talent globally.

1 investor

unremot is a SaaS platform that lets users integrate AI/ML APIs into their products using low-code or no-code methods, offering a catalog of over 120 APIs connected through a unique URL after authentication. The company also provides a community-driven "business-in-a-box" solution aimed at consultants.

1 investor

unSurvey conducts automated market research interviews using AI, eliminating scheduling delays and delivering findings immediately to researchers and product teams.

1 investor

Firefox is a web browser built with privacy and user control as core features, offering tracker blocking, customization options, and focus tools to help users browse with minimal distractions and data monetization.

1 investor

Upper is a platform that connects companies with freelance tech talent and vendors through a cloud-based ecosystem for software development and delivery. It enables businesses to access vetted networks of remote developers and service providers to scale their tech initiatives on-demand.

1 investor

Upsun is a cloud platform for building and deploying applications with global 24/7 support and container-level resource configuration. It serves developers and enterprises modernizing their infrastructure.

1 investor

Uptime Labs provides gamified training simulations for software engineering teams to build incident response skills and resilience under pressure. The platform targets engineering teams in financial trading and other software-intensive industries.

1 investor

Upverter is a web-based platform where hardware engineers collaborate on circuit and product designs, sharing components and existing work rather than starting from scratch. The service targets professional design teams, independent contractors, and hobbyist inventors building electronics and hardware products.

1 investor

URSA Secure builds formal methods software to verify AI-generated code before production, helping companies reduce rework, prevent incidents, and accelerate modernization of large codebases. The toolkit applies formal verification techniques to prove software behavior and behavioral equivalence in AI-assisted development.

1 investor

URX was a mobile deep-linking startup that built technology for linking between apps and surfacing relevant in-app content and actions. It was acquired by Pinterest in 2016 in a deal focused on its engineering team.

1 investor

Useberry is a research platform that enables teams to plan, run, and share user research studies collaboratively. It serves product teams, UX designers, marketers, and product managers who need to conduct usability testing, surveys, and preference testing while keeping teams aligned.

1 investor