MentionFox lists 91 Developer tools companies for 2024. Of them, 90 are Y Combinator companies (the newest batch here is Fall 2024, with 22); 1 won an SBIR or STTR award.
Companies91
Y Combinator90
SBIR/STTR winners1
Other years
All years (678) 2026 (89) 2025 (82) 2023 (79) 2022 (64) 2021 (83) 2020 (54)
Developer tools startups in 2024
| Company | What it does | Date | Amount | Round / stage | Record |
|---|---|---|---|---|---|
| Nlign Analytics, Inc. | Nlign software licenses | Award starts Sep 30, 2024 | $532,335 | SBIR Phase III | Federal award record |
| Abundant | Agent simulation and RL for researchers | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Alex | The Cursor for Xcode | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Capy | The IDE for the parallel age | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Cekura | Voice AI and Chat AI agents: Testing and Observability | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Consus | The fastest and cheapest way to use AI with ITAR or CUI data | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Diffusion Studio | Turn your agent into a professional video editor | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Endstack | The complete, collaborative workspace for humans and agents | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Freebuff | The free coding agent | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| HumanLayer | The multiplayer control plane for your software factory | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Innate | Personal AI Robots | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Kilvin | Custom software for your business | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| PermitPortal | AI Operating System for Pre-construction | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Relvy AI | AI powered debugging notebooks for incident response | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Revyl | The Mobile Development Platform | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Ryvn | Easy and secure customer cloud deployments | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Struct | Struct keeps prod running | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Surge | Stripe for telephony | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Synth | Prompt and Context Optimization for Coding Agents | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Variant | Creative intelligence | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Vespper | The best DOCX MCP for agents to edit microsoft word documents | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| vly.ai | The Lovable & Replit killers | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| x1 | AI app builder for creating and launching iPhone apps | Fall 2024 | Y Combinator batch | Y Combinator listing | |
| Cloudglue | The video context layer for AI. | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| cmux | Open source applied AI lab building next-gen devtools | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| CodeViz | One living model of your software architecture | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Conductor | Run a team of coding agents on your Mac | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Coval | Simulation & Evaluation that scales voice and chat AI agents | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Doublezero | Platform to build, use, and monetize fully autonomous agents | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Emergent | AI app builder that turns your ideas into monetizable software. | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| expand.ai | Turn any website into an API. | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Glasskube | Ship self-hosted software with Distr | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Haystack | Replay real customer journeys against every change before you ship | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| HeroUI | The UI framework for AI agents and developers to build beautiful apps. | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Hexclave | The user infrastructure platform | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Hyrex | The COLD Task Framework | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| ideate.xyz | ideate.xyz is an AI-powered 3D art suite on the web | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Miru | Config Management for Robotics | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Opslane | Verify AI-generated code before you ship it | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Oway | The coordination OS for the physical economy | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Panora | Turning messy inboxes into ERP-Ready Data | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Party | Secure multiplayer software factory for your whole team in minutes | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Pinnacle | API & SDK for RCS (the next-generation of texting) | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Random Labs | Random labs is building long running autonomous coding agents. | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| RunLocal AI | AI agent that optimizes inference for embedded compute like Jetson | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Scape | The intelligent inbox that works for you | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Spur | Spur is your AI QA Engineer | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Storia AI | Open source AI copilot that knows your company's code and its context | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Thunder Compute | GPUs for Agents | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Vibe | Making everyone a software engineer | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| VideoGen | Create professional videos in minutes with AI, online or via API | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Void | The open source Cursor alternative | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Voker | The Agent Analytics Platform | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| ZeroPath | Automatically find and fix your software vulnerabilities | Summer 2024 | Y Combinator batch | Y Combinator listing | |
| Agentic Labs | AI system design tools for dev teams | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| atopile | We make tools to design electronics circuit boards with code | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Bilanc | AI-Powered Engineering Productivity | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Centauri AI | Helps teams work effectively with AI coding agents. | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| CloudCruise | The developer platform for fast and reliable browser agents | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Datacurve | Frontier coding data for training and evaluating LLMs | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Decipher AI | QA agents that write tests 10x faster with zero maintenance | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Downlink | Make your LLMs 3x faster. | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Dragoneye | Custom video detection models in less than 5 minutes | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Driver | Context for Codebases | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Ellipsis | Cloud platform for coding agents | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Firebender | Most powerful coding agent for Android engineers | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Greptile | AI code review agent with complete context of your codebase | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Hatchet | The orchestration platform for teams who ship. | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Integuru | Generate fast, reliable APIs for any platform | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Keystroke | An all-in-one platform for building internal agents & workflows | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Leaping | Automate bug resolution | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Magic Hour | AI media creation platform for creators and developers | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Metofico | No Code Data Analysis for Life Science Research | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Million | Tools for agent verification | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Momentic | The agentic quality platform for web and mobile | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| nCompass Technologies | Optimize performance on GPUs - 10x faster | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Nuanced | the AI coding app for thinking | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| OneGrep | AI Agent for DevOps Workflow Automation | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| OpenFoundry | The fastest developer experience for building on open source AI. | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Pazi | Platform where autonomous companies are built | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Polished | Generate ads | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Precip | High precision AI weather models | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| renderlet | Build interactive applications that run anywhere | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Silogy | An AI-powered test and debug platform for chip developers | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Solari AI | Gives non-technical team members agents that work right out of the box | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Spark | AI-powered workflows for energy infrastructure | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Superagent | Security for AI-native developers | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Trieve | All-in-one API for search, RAG, & recommendations | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Upsolve AI | Deploy trustworthy data agent that know your business | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Vibrant Labs | Autonomously scaling environments | Winter 2024 | Y Combinator batch | Y Combinator listing | |
| Zep AI | The unified context layer for enterprise data | Winter 2024 | Y Combinator batch | Y Combinator listing |
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