Developer Tools Startups

WeaveDB is a verifiable, decentralized database that combines cloud-level performance with permanent storage on Arweave, using zero-knowledge proofs to enable queries from any blockchain. It targets developers building applications and AI agents that require a verifiable data layer, and includes a dual-token system and tooling such as an SDK, ZK prover, and validator network.

1 investor

Weavy provides prebuilt, embeddable collaboration components—real-time chat, file sync, presence, and search—delivered via a single SDK and backend that developers wire into their own apps. It targets engineers building across frameworks like React, Replit, and Retool who want to add collaboration features without building them from scratch.

1 investor

Personal portfolio site of a UK-based freelance web designer, developer, and AI software engineer who builds custom websites, web apps, eCommerce stores, and content management systems for clients worldwide. Services span frontend and backend development, SEO, AI integration, and web3/blockchain projects.

1 investor

Webisoft provides product development services including rapid prototyping and early-stage project support to help companies visualize, test, and validate new ideas.

1 investor

Webnode is a website builder that enables small businesses, craftspeople, and individuals to create professional websites without coding. The platform uses AI to generate website content and design automatically, and offers tools for online stores, booking systems, email, and SEO.

1 investor

Webstruxure is a web solutions and digital services company that works with partners on WordPress, hosting, and marketing projects. It is based in Wellington with team members distributed globally.

1 investor

Webstudio is an open-source visual website builder that gives designers and developers full control over CSS, breakpoints, and rendering, with integrations for external CMS, CRM, and API data sources. It offers hosting via Webstudio Cloud (backed by Cloudflare) or self-hosting, and supports AI agent automation through its CLI and MCP.

1 investor

Wechaty is an open-source RPA chatbot SDK that lets developers build conversational chatbots with a few lines of code. It offers cross-platform support and features such as contact, room, and friendship management, aimed at developers building chatbot applications.

1 investor

wehave provides a partnership management platform (SponsorshipOS) designed for sports clubs to manage sponsorships, contracts, hospitality, guest lists, and partner communications in a single system. It replaces fragmented tools like spreadsheets, email, and generic CRMs with automated workflows and reporting tailored for commercial partnership teams.

1 investor

Werkit is a talent-to-delivery studio that trains African developers and data specialists and pairs them with senior experts who plan and review the work before it ships. It builds apps on Bubble.io with Claude and Codex, offers white-label Bubble development pods, and provides managed data teams for clients.

1 investor

WhereScape RED is a data automation and metadata management platform that helps organizations design, build, and automate data warehouse and data lake operations. The product targets data engineering and IT teams working with cloud and on-premises data platforms.

1 investor

Whimsical is an online whiteboard tool for product teams that combines diagrams, flowcharts, mind maps, and wireframes on an infinite canvas with real-time collaboration and AI assistance. It targets product builders who need to design, document, and share ideas.

1 investor

Whiteboard is a digital agency that helps organizations build brands and digital experiences through strategy, design, and development across three specialized studios: Digital Branding, Digital Platforms, and Digital Activation. The firm works with startups and established organizations seeking digital transformation, focusing on clients with mission-driven or impact-oriented objectives.

1 investor

Black Duck provides an application security testing platform that unifies SAST, SCA, DAST, IAST, and AI-powered analysis to find and remediate vulnerabilities, license compliance risks, and code quality issues across the software development lifecycle. It serves organizations building secure proprietary, open source, and AI-generated code, and supports compliance with regulations such as the EU Cyber Resilience Act.

1 investor

A blockchain research and training platform that provides experimental infrastructure for scientific blockchain research, supporting consortium chains like Fabric with features for chain creation, deployment, and visual monitoring.

1 investor

Ypqc is a unified post-quantum cryptography library supporting seven quantum-resistant encryption algorithms compliant with NIST global standards and domestic KpqC standards. The library provides implementations for C, Java, and WebAssembly platforms and serves government, financial, cloud, IoT, and embedded systems sectors.

1 investor

Wiarframe was an augmented reality prototyping tool that let designers build AR experiences without extensive technical work. The product has since been discontinued after failing to reach a viable market.

1 investor

Widsley is a Japanese technology company that develops and provides cloud applications, conducts research and development in AI for voice and natural language, and offers system development support. It is based in Tokyo, Japan.

1 investor

Wikifactory provides a collaboration platform for engineers and makers to design and build projects together, with tools for CAD file management, version control, and supplier collaboration.

1 investor

Wilderness Labs provides IoT solutions and services to help organizations validate, prototype, and deploy connected devices at scale. They offer hardware design, manufacturing coordination, cloud management, and end-to-end development support across the IoT product lifecycle.

1 investor

Wisent develops technology based on representation engineering to give developers control over large language models, reducing hallucinations and improving capabilities such as coding and math. It offers an API and on-premise options to add these capabilities to open-source models without lengthy fine-tuning.

1 investor

Witan builds software tooling that lets autonomous AI agents create, verify, and produce files in formats like Microsoft Excel, Google Sheets, and PowerPoint. The company provides agent-native tools with self-verification loops for teams whose agents must produce accurate work.

1 investor

Wizer, based in Israel, offers an online platform for teachers to build interactive worksheets and locate existing teaching materials. Students complete assignments and receive immediate feedback, and the platform includes social and game-like elements. Teachers can review analytics on individual student progress and completion.

1 investor

Wodby is a DevOps platform that lets teams deploy, update, and operate application stacks across any cloud, managed Kubernetes, dedicated servers, or its fully managed Wodby Cloud, with CI/CD, environment management, backups, and integrations in one dashboard. It targets developers and businesses, including support for AI coding agents that can handle deployments and operations.

1 investor