Developer Tools Startups

Waddle Labs provides an API that connects to robots and, from a natural-language prompt, uses AI agents to generate a control policy for the robot to carry out the requested task. The product targets robotics developers and operators.

4 investors

WalletConnect provides wallet connection infrastructure enabling decentralized applications to interact with blockchain wallets across multiple networks and platforms.

4 investors

Wasmer develops software for edge computing and next-generation cloud platforms based on WebAssembly, offering lightweight, fast-starting container technology. It also built a WebAssembly package manager, positioning itself as an alternative to tools like Docker, npm, and the JVM.

4 investors

Wavecell, part of 8x8's CPaaS offering, provides communication APIs and tools for messaging across channels like SMS, WhatsApp, Viber, Zalo, LINE, voice, and video, plus features for authentication and fraud prevention. It serves business teams in marketing, operations, customer support, and development across industries such as ecommerce, fintech, and logistics.

4 investors

Wavedash is a web-based gaming platform that runs games natively in browsers without downloads or installs, enabling instant multiplayer by sharing a link. It provides developer tools, hosting, distribution, and analytics for game creators across multiple engines, charging 10% fees.

4 investors

Haptic develops haptic technology that conveys information through the sense of touch, such as wrist-worn vibration systems used to guide a blind runner during the NYC Marathon. The company focuses on accessible, touch-based communication and navigation products.

4 investors

Visualping is a website change monitoring tool that alerts users with highlighted before-and-after screenshots when a webpage changes, using AI to flag whether a change is important. It offers a browser extension, change history, team collaboration, and an embeddable notification button, serving businesses including large enterprises.

4 investors

A company developing recursively self-improving AI systems and autoresearch technology that achieves human-level performance on complex technical tasks through self-optimization loops.

4 investors

Whalesync enables two-way data synchronization between spreadsheet tools (Google Sheets, Airtable, Notion) and vertical SaaS applications (Webflow, Salesforce, HubSpot, Affinity), allowing teams to automate bulk data operations across platforms without manual CSV imports.

4 investors

Willow is a voice-to-text application that transcribes and formats spoken words into written text across desktop and mobile devices. It serves professionals and knowledge workers across any app or device, using AI to handle formatting, punctuation, and style adaptation.

4 investors

Windmill is a platform for building, deploying, and orchestrating internal software including scripts, workflows, and applications across teams. It supports multiple languages and provides governance, observability, and enterprise-grade security features for organizations managing business-critical automation at scale.

4 investors

Windsurf is an AI-native IDE and coding assistant for enterprise developers, acquired by Cognition in July 2025.

4 investors

Workflow builds software for creative and design teams to manage projects from initial brief through to final client approval, handling project admin, feedback, and team organisation. It targets designers and creative professionals seeking to reduce administrative overhead around their work.

4 investors

WOZCODE is an official plugin for Claude Code that optimizes code execution to reduce costs and improve performance for developers. The product serves individual developers and engineering teams.

4 investors

Xata provides a database platform that lets teams create a synced, anonymized clone of their production database and spin up instant branches from it for development and CI/CD workflows. It is aimed at software developers managing database environments.

4 investors

Xflow offers an invoicing product that lets businesses create branded, customizable invoices with built-in global payment options, including automatically embedded bank transfer instructions. It also provides tools to track outstanding invoices and send payment reminders from a dashboard.

4 investors

Yutori builds web agents that automate tasks on the web, enabling users to delegate browsing and task execution to background agents rather than doing it manually. The company is developing the full stack for agent-first web interaction, from navigation models to agent-enabled products.

4 investors

Skylar Advisor is an AI-native platform that converts operational telemetry, alerts, and tickets into actionable guidance for IT operations teams. It helps enterprise and government operations teams resolve issues faster, prevent repeat incidents, and reduce alert noise by grounding recommendations in organization-specific knowledge and historical context.

4 investors

Zipline is a data infrastructure platform built on the open-source Chronon project that lets engineering teams build, deploy, and monitor real-time data pipelines, features, and embeddings for AI agents and ML models. Deployed entirely within a customer's own cloud, it provides context, retrieval, observability, and governance for teams building production AI and ML systems.

4 investors

Zipy is a monitoring and analytics platform that combines session replay, error tracking, frontend and network monitoring, and user journey analytics to help teams debug issues and understand user behavior. It is aimed at engineering, product, and support teams working on web applications.

4 investors

Zuplo builds an API management and gateway platform designed to fit into developers' existing tools and workflows. It targets software developers as its primary users.

4 investors

10Web provides a white-labeled website generation API that enables platforms to automatically create WordPress sites from user-submitted business data, assets, and branding information. The solution includes a drag-and-drop editor, full CMS access, and managed hosting infrastructure for B2B SaaS companies seeking to embed website-building capabilities into their offerings.

3 investors

42Crunch provides an API security platform that secures how AI agents interact with enterprise APIs. The platform offers security governance across the API lifecycle and extends protection to AI-generated code and agentic AI interactions with business systems.

3 investors

4EVERLAND is a Web3 cloud computing platform that integrates DePINs and protocols to provide decentralized computing, storage, and networking services for developers and dApps. It offers a $4EVER token used for governance, services, and staking across the network, with support for chains and protocols such as Arweave, IPFS, Ethereum, Polygon, and BNB Chain.

3 investors