Developer Tools Startups
4,618 companies tagged Developer Tools, with their investors and founders.
HoneyHive is an OpenTelemetry-native platform for observability and evaluation of AI agents, letting teams instrument agents on any stack, debug behavior, evaluate live traces, and catch regressions before release. It serves engineering teams deploying production AI systems, including enterprise customers running mission-critical AI agents.
3 investors
Hoop.dev provides a security gateway that inspects and controls database queries, API calls, and commands at the protocol layer, masking sensitive data and blocking risky operations before they execute. The tool operates as middleware for engineering teams to prevent unauthorized data access and enforce security policies without requiring code changes or SDK installation.
3 investors
Horizon Quantum builds software infrastructure for quantum computing, including Triple Alpha, an integrated development environment with proprietary programming languages and a compiler that lets developers write portable quantum programs at multiple levels of abstraction. It also provides cloud-based deployment and execution infrastructure so users can run quantum applications on existing hardware, aimed at software developers building quantum applications.
3 investors
Hotglue is an embedded ETL platform that enables data integration with over 600 open-source connectors, allowing companies to build and manage customer integrations at scale. It serves product teams building integration workflows and is sold to SaaS companies and platforms.
3 investors
Huddle01 Cloud provides high-performance bare-metal cloud infrastructure at significantly lower costs, serving developers, startups, and engineering teams. The platform offers compute instances, managed Kubernetes, load balancers, and storage with transparent pricing and no vendor lock-in.
3 investors
Hydrogen is a modular, no-code platform for embedded finance that lets companies build and offer financial products and services. It provides a single bundled platform covering multiple fintech verticals, aimed at businesses of all sizes.
3 investors
A design systems firm that integrates with teams to support design collaboration and establish scalable design standards.
3 investors
IndoorAtlas develops an indoor positioning platform that enables mobile apps to determine location and navigate indoors using geomagnetic technology. The platform serves app developers and their end users who need location awareness in indoor environments.
3 investors
Instant is a backend-as-a-service database platform built for modern app development and AI agents, offering real-time sync, offline mode, authentication, permissions, and storage through a graph-based query language called InstaQL.
3 investors
Interfere is a real-time monitoring platform that helps engineers detect and understand bugs and issues in production applications before users encounter them, providing root cause analysis and suggested fixes.
3 investors
Ittybit builds a private, searchable media library that lets teams index their video content and extract structured data from it. It targets teams working with video assets and offers early-access invites.
3 investors
Jozu provides security, governance, and orchestration solutions for the AI lifecycle, enabling enterprises to deploy and manage machine learning models securely and at scale. The platform helps teams move faster without compromising on security, compliance, or scalability through infrastructure that protects AI supply chains and runtime operations.
3 investors
Juzibot develops AI agents for enterprise workflows, enabling companies to automate tasks across departments from management to frontline operations through conversational AI integrated with workplace communication tools. The company serves large enterprises (1000+ clients) across sales, compliance, testing, and administrative functions.
3 investors
Iru provides an AI-powered unified platform for endpoint management, identity, threat detection, and compliance automation serving IT and security teams. The platform consolidates workforce identity, endpoint detection and response, vulnerability management, and compliance tools into a single system.
3 investors
Kerys develops YS::Desktop, a workstation virtualization platform designed for field maintenance teams in industrial environments. It enables offline operation, remote updates, direct equipment connectivity, and multi-environment isolation while meeting IEC 62443 and NIS2 security standards.
3 investors
Kestrel Labs develops software that translates building code into machine-executable logic and runs compliance checks directly within BIM models, integrated into tools like Autodesk Revit. The platform helps architects and design teams catch regulatory issues early in the design process rather than at plan check, powered by data from the International Code Council.
3 investors
Keycard provides access control and identity management for AI agents, resolving a composite identity (user, device, agent, task) and issuing short-lived, least-privilege credentials scoped to each task when an agent requests access to tools, APIs, and data. It enforces policy at the edge, logs every agent action and policy decision to SIEMs like Splunk and Datadog, and is aimed at developers and organizations building or adopting agentic tools.
3 investors
Keycard provides infrastructure for AI agents to operate safely and securely in production environments, enabling developers to connect agents to services across multiple clouds while maintaining identity, policy, and audit controls.
3 investors
Keyframe Labs provides AI video personas that turn text and voice agents into lifelike video call experiences. The platform enables developers to deploy conversational video agents across enterprises, consumer apps, training platforms, and recruiting with production-grade, secure deployments.
3 investors
Keygraph is an application security platform that runs continuous, AI-driven penetration testing on every build, reporting findings only when accompanied by a working exploit. It combines static analysis (SAST), software composition analysis with reachability, secrets detection, blackbox/whitebox agentic pentesting, and AI-generated patch pull requests, deployed inside a customer's own AWS, GCP, or Azure environment.
3 investors
Kimono Labs provides browser-based tools that allow users to convert unstructured website data into machine-readable APIs without coding knowledge, using a bookmarklet or Chrome extension to automate web scraping and crawling.
3 investors
Kindo provides AI-native agents designed for DevOps, SRE, and platform engineering teams to automate CI/CD pipeline validation, system troubleshooting, and operational workflows. The platform autonomously executes infrastructure tasks, reduces mean time to recovery, and accelerates internal tool development across cloud infrastructure and observability systems.
3 investors
Knostic provides security tooling that discovers and protects AI agents and coding assistants along with related supply chain components such as MCP servers, skills, IDE extensions, and rules. Its platform detects shadow AI, blocks data exfiltration, and stops destructive commands.
3 investors
Kobiton provides a mobile test automation platform with a real-device cloud, device lab management, and AI-driven tools that generate Appium scripts from manual test sessions and run tests across physical Android and iOS devices. It serves enterprise QA and mobile development teams, offering cloud or on-prem deployment for continuous mobile testing.
3 investors















