Developer Tools Startups

Iron, a MoonPay company, provides API-first stablecoin payment infrastructure including virtual accounts, fiat-to-stablecoin on/offramps, global payouts, checkout, and OTC services. It serves enterprises, PSPs, wallets, fintechs, exchanges, and treasuries building stablecoin-based payment flows.

2 investors

Umbraco is a content management system (CMS) designed for enterprises and partners. The company emphasizes developer experience and customer service while pursuing sustainability and global growth objectives.

2 investors

Uniform is a composable digital experience platform that enables brands to create, personalize, and deliver omnichannel experiences by integrating content, data, and technology from multiple sources. It serves enterprise teams across fintech, consumer goods, banking, insurance, and other industries seeking faster time-to-market without vendor lock-in.

2 investors

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.

2 investors

Unow operates an online higher education platform and a network of internet-based schools. It combines peer-to-peer learning cohorts with its own instructional and tuition models, targeting students who face cost or scheduling barriers to attending a traditional degree program.

2 investors

Unstract is an open-source, no-code platform for automating document processing, using LLMs to parse and extract structured data (returned as JSON) from complex documents such as bank statements and forms. It offers tools like Prompt Studio for prompt engineering and LLMChallenge to reduce hallucinations, and can be deployed as managed cloud, on-premise, or open-source.

2 investors

NoHu FM is a Vietnamese-language affiliate review site that evaluates online "nổ hũ" (slot/jackpot) gambling portals and betting operators based on licensing, slot providers, RTP transparency, and deposit/withdrawal speed. The content targets adult players over 18 looking to compare prize-exchange game sites in the Vietnamese market.

2 investors

Unternet is building an intelligent computer along with an open software ecosystem to power it, including Web Applets (an open standard for taking actions on the web), Kernel (a runtime for intelligent software), and Tabletop (a natural computer interface). The company operates in the AI and developer software space.

2 investors

Update My Browser is a website that detects a visitor's web browser and provides information and guides on updating browsers to their latest versions. It offers a browser overview, a widget, and update guides in multiple languages.

2 investors

UpLabs runs an online marketplace where designers and developers find and share curated resources for building apps and websites. Its community uploads new content daily.

2 investors

Uploadcare provides a file handling product and service, including upload, CDN delivery, and image processing accessed through its API. This page describes its bug bounty program for security researchers.

2 investors

Upriver builds an AI-powered platform that automates data engineering work such as investigating broken pipelines and tracing issues across systems, letting engineers focus on defining data meaning and flow. It is aimed at data teams running modern cloud data stacks.

2 investors

URX built mobile advertising technology that helped publishers monetize mobile content and connected users to relevant commerce experiences for advertisers. The company was acquired by Pinterest in May 2016.

2 investors

UserClouds provided a platform for enterprises to control access to sensitive data through granular policies, tokenization, and masking to enforce least privilege access and comply with data residency regulations. The company has wound down and open-sourced its codebase.

2 investors

Userfront provides authentication and user management tooling for developers, including capabilities for deploying AI assistants and enforcing AI use policies. It offers infrastructure to handle user login and identity for web applications.

2 investors

UserGuiding provides in-product changelog and feature announcement tools that help teams communicate updates to users with built-in feedback collection. The platform enables creation of branded changelog pages, emoji reactions, and automated notifications to keep users informed of product changes.

2 investors

Uteach provides an online course creation and delivery platform that enables educators to build multimedia-rich courses, schedule content release, and manage student enrollment with customizable learning experiences.

2 investors

Uthana offers a text-to-motion generation tool that creates character animations from natural language descriptions, designed for digital creators and animation professionals. The platform provides an API and web interface for generating human motion-capture-based animations that can be exported in standard 3D formats.

2 investors

Val Town is a platform that lets GTM and operations teams build and deploy internal tools, integrations, and automations to live URLs, with support for AI coding agents like Claude, Codex, and Cursor. It provides a sandboxed environment for running code in production, handling use cases such as webhooks and custom growth campaigns.

2 investors

Valohai provides tools for testing and comparing language models, prompts, and retrieval configurations against real data to optimize for quality and cost. The platform serves machine learning teams and LLM developers who need systematic evaluation, regression testing, and cost analysis across multiple models and configurations.

2 investors

Vanellus provides GPU-native, finite-volume CFD and thermal simulation software for electronics cooling design, delivered through a browser-accessible workflow with cloud GPU solvers and automated meshing. It serves thermal engineers, product designers, and team leads working on dense electronics such as server blades, consumer electronics, and data centers.

2 investors

Vaporware is a decentralized, peer-to-peer internet computer built on a purely functional virtual machine ("ship") that combines cryptographic identity, large-scale file storage, encrypted networking, and full-stack web applications into a single framework. It provides permissionless app and package registries plus a p2p content distribution and payment protocol (the "agora") so users can self-host, run, and monetize non-custodial apps and data they own.

2 investors

VCola provides a platform for rapidly building customized enterprise applications using AI, targeting organizations that need to deploy business software at scale without compromising on traditional enterprise software principles.

2 investors

Vectice provides auto-documentation software that automatically catalogs datasets, model metrics, and limitations during AI/ML model development. It offers management dashboards and standardized project tracking for teams developing machine learning models.

2 investors