Startups by category

Engineering, Product and Design:
who does AI recommend?

246 young startups in Engineering, Product and Design. For each, we ask AI the question its buyers would ask, without naming anyone, and show who it recommends.

246checked so far, of 246

18recommended by AI

228not named: AI picked others

Startups › Engineering, Product and Design

Your real competition

Who AI recommends in Engineering, Product and Design

When buyers ask about these startups' products, AI names these instead. They're who a young Engineering, Product and Design startup has to show up next to.

Cursornamed for 28 startups' buyers

Claude Codenamed for 18 startups' buyers

Windsurfnamed for 17 startups' buyers

CrewAInamed for 13 startups' buyers

LangGraphnamed for 13 startups' buyers

GitHub Copilotnamed for 12 startups' buyers

Langfusenamed for 11 startups' buyers

Arize Phoenixnamed for 9 startups' buyers

The startups

Engineering, Product and Design startups

The ones AI recommended come first, then the rest by name. Nothing here is paid.

21stYC Winter 2026UI building blocks for the agentic internetNamed in 2 of 2 answers atopileYC Winter 2024We make tools to design electronics circuit boards with codeNamed in 2 of 2 answers GreptileYC Winter 2024AI code review agent with complete context of your codebaseNamed in 2 of 2 answers Hamming AIYC Summer 2024Complete QA platform for voice agentsNamed in 2 of 2 answers HumanLayerYC Fall 2024The multiplayer control plane for your software factoryNamed in 2 of 2 answers MastraYC Winter 2025The Javascript framework for building AI agents, from the Gatsby devsNamed in 2 of 2 answers ReductoYC Winter 2024The complete agentic document platformNamed in 2 of 2 answers SigmanticAIYC Summer 2025The Cursor for Chip Design - Delivering Silicon-Ready Chip Designs…Named in 2 of 2 answers StacksyncYC Winter 2024Real-time and two-way sync between CRMs and DatabasesNamed in 2 of 2 answers TheoremYC Spring 2025Program verification so even your systems engineers can vibecodeNamed in 2 of 2 answers Unsloth AIYC Summer 2024Open-Source Reinforcement Learning (RL) & Fine-tuning for LLMs.Named in 2 of 2 answers AutosanaYC Summer 2025AI agents for E2E testing across mobile & webNamed in 1 of 2 answers Comfy DeployYC Summer 2024ComfyUI for everyone on your teamNamed in 1 of 2 answers CovalYC Summer 2024Simulation & Evaluation that scales voice and chat AI agentsNamed in 1 of 2 answers Domu Technology Inc.YC Summer 2024AI Agents for collectionsNamed in 1 of 2 answers DraftaidYC Winter 2024Go from 3D models to CAD drawings using AINamed in 1 of 2 answers HUDYC Winter 2025Platform and marketplace for RL environments and AI dataNamed in 1 of 2 answers OnlookYC Winter 2025The Developer tool for DesignersNamed in 1 of 2 answers .WaveYC Winter 2025Inference for real-time AINot namedAI picked GPT-4o, Claude 3.5 Sonnet +6 a0.devYC Winter 2025We make mobile apps using AI.Not namedAI picked RapidNative, Newly +6 A1Zap by A1BaseYC Winter 2025The social network layer for AI appsNot namedAI picked Streamlit, Gradio +6 AdamYC Winter 2025AI Powered CADNot namedAI picked Autodesk Fusion, Siemens NX +6 Agent RelayYC Fall 2026Let your teams' coding agents message each otherNot namedAI picked LangGraph, CrewAI +5 Agentic LabsYC Winter 2024AI system design tools for dev teamsNot namedAI picked Eraser.io, IcePanel +6 AlexYC Fall 2024The Cursor for XcodeNot namedAI picked Xcode Predictive Code Completion, GitHub Copilot for Xcode +6 AlkaliYC Spring 2025The smarter way to estimate steel.Not namedAI picked SketchDeck.AI, Steel Genie +6 Alkera AIYC Summer 2026Reliable and safe data engineering and data science agentsNot namedAI picked GitHub Copilot, Cursor +6 AlunaYC Summer 2024Data for biomedical AINot namedAI picked The Cancer Imaging Archive (TCIA), National Cancer Institute (NCI) Cancer Data Service (CDS) / CRDC +6 Amorphic LabsYC Summer 2026OpenRouter for Agent ToolsNot namedAI picked Composio, Apify Store +6 AnchorheadYC Winter 2026Evals for frontier research agentsNot namedAI picked MLE-bench, SciAgentArena +2 Andon LabsYC Winter 2024Autonomous organizations without humans in the loopNot namedAI picked Open Policy Agent AntigenYC Fall 2025Continuous offensive security for the enterprise.Not namedAI picked Horizon3.ai (NodeZero), Pentera +6 ArmatureYC Spring 2026We get your product picked by coding agents.Not namedAI picked Claude Code, Codex +5 ArtifactYC Winter 2025An Collaborative, AI-native IDE for Hardware EngineersNot namedAI picked SiliCode, Synopsys.ai Copilot +6 AspectYC Fall 2025Intelligent media storage for creative teams.Not namedAI picked iconik, Quantum CatDV +6 AtlasGridYC Fall 2025Accelerate Product IterationNot namedAI picked UXCam, Smartlook +6 AtrisaYC Spring 2026AI Agents for Analog Circuit DesignNot namedAI picked SPICE, Cadence Spectre +6 AttuneYC Spring 2025Faster builds, zero effort.Not namedAI picked WarpBuild, BuildJet +6 AucertYC Fall 2026A team of expert AI agents that test mobile apps on their own.Not namedAI picked testRigor, Autify for Mobile +6 Aurorin CADYC Winter 2026Claude code for Mechanical EngineersNot namedAI picked Autodesk Fusion, PTC Creo +6 BilancYC Winter 2024AI-Powered Engineering ProductivityNot namedAI picked GitHub Copilot, Cursor +6 BitrigYC Summer 2025Build and ship native Swift apps with AINot namedAI picked Apple Xcode, Cursor +6 BloomYC Spring 2025Build and share mobile apps in secondsNot namedAI picked Expo, Flutter +6 BootLoopYC Summer 2025Firmware in minutes, not months - rigorously tested on real hardwareNot namedAI picked J-Link, ST-LINK +6 Boxes.devYC Fall 2026A better place to run your coding agents.Not namedAI picked E2B, Daytona +6 Button ComputerYC Winter 2026The tiny computer built for voice AI.Not namedAI picked Ray-Ban Meta Smart Glasses, AirPods Pro +6 ByteAskYC Fall 2026The AI coding agent for C and C++Not namedAI picked Cursor, Windsurf +6 Cactus ComputeYC Summer 2025Automation Foundation Models For Tiny DevicesNot namedAI picked NVIDIA Jetson Orin, Google Coral TPU +6 CaddyYC Fall 2025Your Personal AI for everyday work. Lives in your texts.Not namedAI picked Martin AI, Arlo +6 camelAIYC Winter 2024Unlimited inference at $5 per streamNot namedAI picked Featherless.ai, Awan LLM +6 CanaryYC Winter 2026Adversarial AI that breaks your AINot namedAI picked Qodo, Diffblue Cover +6 CapacitiveYC Spring 2025The data gateway for agents.Not namedAI picked HashiCorp Vault, AWS IAM +5 CapyYC Fall 2024The IDE for the parallel ageNot namedAI picked Paradev, Parallel Code +6 CedarYC Winter 2025Execute the best sales playbook in industryNot namedAI picked Scratchpad, Troops +6 CekuraYC Fall 2024Voice AI and Chat AI agents: Testing and ObservabilityNot named CerulionYC Summer 2024Open source operating system for robotsNot namedAI picked Ubuntu Linux, ROS 2 +6 ClickYC Summer 2026Managed Agents APINot namedAI picked OpenAI Agents API, Anthropic – Claude Managed Agents +6 CoArenaYC Summer 2026The biggest crowdsourced benchmark for Computer-UseNot namedAI picked SWE-bench, SWE-bench Verified +6 CodeAnt AIYC Winter 2024Autonomous offensive and defensive cybersecurity platformNot namedAI picked Horizon3.ai (NodeZero), Pentera +6 CodevisorYC Winter 2025The fastest native app for agentic engineering.Not namedAI picked Cursor, Windsurf +6 ComposalYC Fall 2026Swarms of agents acting like users to find bugs before releaseNot namedAI picked Synthetic Users, Uxia +6 CompyleYC Fall 2025The coding agent that actually collaborates with youNot namedAI picked GitHub Copilot, Cursor +6 ConductorYC Summer 2024Run a team of coding agents on your MacNot namedAI picked Claude Code, Aider +6 Confident AIYC Winter 2025Production Monitoring & Evals for AI AgentsNot namedAI picked Langfuse, LangSmith +6 CorelayerYC Winter 2026AI production engineer for regulated industriesNot namedAI picked ServiceNow, Dynatrace +2 CorsairYC Winter 2025OpenRouter for IntegrationsNot namedAI picked Postman, Insomnia +6 CuaYC Spring 2025Give every agent a cloud desktopNot namedAI picked E2B Desktop, Daytona Computer Use +6 cubicYC Spring 2025AI-powered code review platformNot namedAI picked CodeRabbit, GitHub Copilot Code Review +5 CyberdeskYC Summer 2025Self learning computer use agent for developersNot namedAI picked Anthropic Computer Use API, UI-TARS +6 d_modelYC Summer 2024Look inside the modelNot namedAI picked Microsoft’s InterpretML, DiCE +6 DalusYC Winter 2025AI-Powered Hardware System Design SoftwareNot namedAI picked Visure Requirements ALM, QRA Corp (QVscribe) +6 dari.devYC Fall 2025The Routing Layer for AI AgentsNot namedAI picked Anthropic, OpenAI +6 DatafruitYC Summer 2025The AI workspace for software implementationsNot namedAI picked Jira Software, ClickUp +6 Decipher AIYC Winter 2024QA agents that write tests 10x faster with zero maintenanceNot namedAI picked TestSprite, Momentic +6 DeepSim, Inc.YC Summer 2024An AI physics simulator for AI chip designNot namedAI picked Ansys RedHawk-SC Electrothermal, Cadence Celsius Thermal Solver +6 DelineateYC Winter 2025Agents for Accelerated Clinical Trial DesignNot named DextoYC Winter 2025AWS for AI AgentsNot namedAI picked LangGraph, LlamaIndex +6 Diode Computers, Inc.YC Summer 2024Automate circuit board design using AINot namedAI picked Celus, CircuitMind +6 DocketYC Spring 2025AI agents for web testingNot namedAI picked Tricentis Testim, Mabl +6 DoublezeroYC Summer 2024Platform to build, use, and monetize fully autonomous agentsNot namedAI picked LangGraph, CrewAI +6 DragoneyeYC Winter 2024Custom video detection models in less than 5 minutesNot namedAI picked Roboflow, LandingAI +4 DuckieYC Winter 2024Build AI Support Agents in MinutesNot namedAI picked LangChain, LangGraph +6 DynamiteYC Winter 2024Personalize your website for every visitor in <300msNot namedAI picked Dynamic Yield, Insider +6 e2eYC Spring 2026the software verification layer for the agentic coding eraNot namedAI picked tsc, mypy +6 Efficient Computation Inc.YC Fall 2025building principled reinforcement learning environmentsNot namedAI picked AlphaFold, RFdiffusion +6 EllipsisYC Winter 2024Managed Agent platform Not namedAI picked LangGraph, CrewAI +5 EmbedderYC Summer 2025Autonomous Firmware EngineerNot namedAI picked CMock, Fake Function Framework (fff) +6 EntanglYC Summer 2024Find & resolve issues in data center engineering & operations using AINot namedAI picked Google’s DeepMind F2YC Summer 2025The AI platform for private markets investorsNot namedAI picked Hebbia, Keye +6 FastshotYC Fall 2025Lovable for mobile appsNot namedAI picked FlutterFlow, Adalo +6 FeldyYC Winter 2024Field-First AI for home servicesNot namedAI picked Canvas, Matterport +6 FeynYC Spring 2025Custom models trained on your dataNot namedAI picked XGBoost, Random Forest +6 FirebenderYC Winter 2024Most powerful coding agent for Android engineersNot namedAI picked Gemini in Android Studio, GitHub Copilot +5 fixaYC Fall 2024Fix your voice agents fasterNot namedAI picked OpenAI Realtime, Gemini Multimodal Live +6 FlootYC Summer 2025The app platform inside Claude and ChatGPT.Not namedAI picked v0, Bolt.new +6 FreebuffYC Fall 2024The free coding agentNot namedAI picked Codeium, Windsurf +6 FreesoloYC Spring 2025Product Native ModelsNot namedAI picked Microsoft Presidio, spaCy +4 GodelaYC Spring 2025AI Physics Engine to replace simulations and prototypesNot namedAI picked Ansys SimAI, Siemens Simcenter PhysicsAI +6 GradonYC Fall 2026Legora for AEC (Architecture, Engineering, & Construction) firmsNot namedAI picked Autodesk Forma, TestFit +6 Graphify LabsYC Summer 2026On-device Knowledge Graph engine for Enterprise SoftwareNot namedAI picked Z3, CVC5 +6 hardware intelligenceYC Summer 2026AI tools for the chips your AI runs onNot namedAI picked Synopsys, Cadence +6 HaystackYC Summer 2024Replay real customer journeys against every change before you shipNot namedAI picked Playwright, Cypress +6 HeliumYC Summer 2024Self Improving SoftwareNot namedAI picked VWO, Evolv AI +5 HelixDBYC Spring 2025The fastest & most scalable graph-vector database on the marketNot namedAI picked Neo4j, FalkorDB +5 HeraYC Summer 2025The AI-native creative canvasNot namedAI picked Infogiph, Eraser.io +6 herdrYC Fall 2026building the open agent runtimeNot namedAI picked RabbitMQ, Apache Kafka +6 HeroUIYC Summer 2024The UI framework for AI agents and developers to build beautiful apps.Not namedAI picked A2UI, CopilotKit +6 Hestus, Inc.YC Summer 2024An AI-powered CAD softwareNot namedAI picked Autodesk Fusion, PTC Creo +6 HexclaveYC Summer 2024The user infrastructure platformNot namedAI picked WorkOS, PropelAuth +5 hillclimbYC Fall 2025Training Data for Recursive Self-ImprovementNot namedAI picked arXiv, PubMed Central Open Access +6 HopliteYC Summer 2026Effortlessly deploy cloud software factories.Not namedAI picked GitHub Codespaces, Gitpod +6 HueYC Fall 2026Test agents in realistic worlds built from production usageNot namedAI picked VCR, Pydantic +3 Human BehaviorYC Spring 2025Understand your users beyond the numbersNot namedAI picked Microsoft Clarity, Fullstory +6 HyperProbeYC Summer 2026AI engineer that debugs and fixes production incidents in realtimeNot namedAI picked PagerDuty, Datadog +6 HyrexYC Summer 2024The COLD Task FrameworkNot named ideate.xyzYC Summer 2024ideate.xyz is an AI-powered 3D art suite on the webNot namedAI picked Meshy, Tripo AI +6 idlerYC Summer 2025Hill-climb any benchmark, for any model, in any domain.Not namedAI picked Braintrust, Langfuse +6 InstaBoxYC Spring 2026Cloud computers for AI agentsNot namedAI picked E2B, Modal +6 InteguruYC Winter 2024Generate fast, reliable APIs for any platformNot namedAI picked Kong, Envoy +6 InterfereYC Summer 2025Give engineering, product, and design teams insight into unseen issuesNot namedAI picked AFL++, libFuzzer +6 Jeevy FabricationYC Spring 2025AI Driven EPC - Weld Fabrication ContractorNot named KilvinYC Fall 2024Custom software for your businessNot namedAI picked Airtable, SmartSuite +6 Lamina LabsYC Spring 2026Near-real-time video infrastructure for LLMsNot namedAI picked HeyGen, Synthesia +6 LaminarYC Summer 2024Understand why your AI agent breaks. Iterate fast to fix it.Not namedAI picked Langfuse, Arize Phoenix +6 LarkYC Summer 2025The E2E testing layer for AI-driven developmentNot namedAI picked mabl, Katalon Studio +6 LattedYC Winter 2024Automated Content EngineNot namedAI picked HeyGen, Synthesia +6 LeapingYC Winter 2024Automate bug resolutionNot namedAI picked Sentry Seer, Tembo +6 LemmaYC Fall 2025Production Monitoring for AI agentsNot namedAI picked LangSmith, Langfuse +4 LightSprintYC Spring 2026Software factory for product teamsNot namedAI picked GitHub, GitLab +6 Lingo.devYC Fall 2024The Localization Engineering PlatformNot namedAI picked DeepL, GPT +2 LinzumiYC Spring 2026Team chat to command all your company's coding agentsNot namedAI picked GitHub Copilot, GitLab Duo +6 LocusYC Fall 2025Payment infrastructure for AI agentsNot namedAI picked Mastercard Agent Pay, Visa Intelligent Commerce +6 MacadamiaYC Winter 2025AI Agents for Complex Engineering ProjectsNot namedAI picked GitHub, Jira +6 MagiCodeYC Summer 2024A Reliable AI Frontend EngineerNot namedAI picked v0 by Vercel, Lovable.dev +6 MagnitudeYC Summer 2025Run open models as fast as your hardware allowsNot namedAI picked MLX, llama.cpp +6 MarblismYC Winter 2024AI Employees who love overtimeNot namedAI picked HubSpot, Klaviyo +6 MartiniYC Winter 2026AI Video Production for ProfessionalsNot namedAI picked Runway, Kling AI +6 MesmerYC Spring 2025We build software factories for engineering teamsNot namedAI picked GitHub, GitLab +6 MethodYC Spring 2025Agents that improveNot namedAI picked GitHub Copilot, Cursor +6 MetoficoYC Winter 2024No Code Data Analysis for Life Science ResearchNot namedAI picked GraphPad Prism, JASP +6 MillionYC Winter 2024Tools for agent verificationNot namedAI picked ESLint, Ruff +6 MinroYC Fall 2025Identify churn risk and stay close to users at scaleNot namedAI picked Gainsight CS, Vitally +6 MirrorsYC Fall 2026Fix recurring AI agent mistakes with real-time guidanceNot namedAI picked Langfuse, Braintrust +5 MomenticYC Winter 2024Mo, the AI QA engineer that bug-bashes your app before every releaseNot namedAI picked testRigor, Katalon Platform +6 MonteYC Summer 2025Continual Learning for AgentsNot namedAI picked Letta, MemGPT +6 MOVEdotYC Fall 2025AI Agents for Hardware EngineeringNot namedAI picked Schemalyzer, BV Circuits +6 MSPilotYC Fall 2025Turn AI adoption into a recurring revenue line.Not namedAI picked Microsoft Copilot Studio, Power Automate +6 Munito AIYC Fall 2026Open-model inference provider for Europe, private by default.Not namedAI picked Scaleway Generative APIs, OVHcloud AI Endpoints +6 nCompass TechnologiesYC Winter 2024Optimize performance on GPUs - 10x fasterNot namedAI picked TensorRT, ONNX Runtime +6 Nimbic AIYC Spring 2025Automatically write and update internal docs with every code commit.Not namedAI picked FastAPI, NestJS +6 OmnaraYC Summer 2025The Open-Source Alternative to Claude Managed AgentsNot namedAI picked LangGraph, CrewAI +6 OneGrepYC Winter 2024AI Agent for DevOps Workflow AutomationNot namedAI picked Datadog, Prometheus +6 OpenYC Winter 2024Enterprise AI customer supportNot namedAI picked Salesforce Service Cloud (Agentforce), Zendesk (Zendesk AI) +6 OpenCrawlYC Fall 2026High-performance hyper-personalized search indexes.Not namedAI picked CLIP, OpenCLIP +6 OpenRelayYC Summer 2026Distributed, hardware-agnostic AI inferenceNot namedAI picked llm-d, Ray Serve +6 ORO AIYC Fall 2026RL environments that teach AI to run businesses autonomouslyNot namedAI picked Salesforce, SAP +6 OuterportYC Summer 2024Design automation for industrial electrical controlsNot namedAI picked EPLAN Electric P8, Siemens TIA Selection Tool +6 PalisadeYC Summer 2026AI-native sales agents that run marketplacesNot namedAI picked Amazon Rufus, Walmart's AI assistants +1 PanelsYC Summer 2025Audio Data for AI LabsNot namedAI picked Hugging Face Datasets, OpenSLR +6 Paradev (formerly Superset)YC Spring 2026Building self-improving softwareNot namedAI picked GitHub Copilot, Cursor +6 PartclYC Spring 2025Design a chip in minutesNot namedAI picked Verilator, Synopsys VCS +6 PartyYC Summer 2024Secure multiplayer workspace for teams building with agentsNot namedAI picked E2B, Northflank Sandboxes / Runloop +6 PaziYC Winter 2024Platform where autonomous companies are builtNot namedAI picked LangGraph, CrewAI +6 Phone HarnessYC Fall 2026Let your agent control your phoneNot namedAI picked Mobile-Agent (Alibaba), AppAgent (Tencent) +6 PhotoniumYC Spring 2025AI-Powered Optical Consulting & SoftwareNot namedAI picked CODE V, Ansys Zemax OpticStudio +6 PinnacleYC Summer 2024API & SDK for RCS (the next-generation of texting)Not namedAI picked Twilio, Sinch +4 PlexeYC Spring 2025Open-source agents to build predictive ML models from a promptNot named PolishedYC Winter 2024Generate ads. Iterate till perfect.Not namedAI picked AdCreative.ai, Pencil +6 PolymetYC Summer 2024AI Product DesignerNot namedAI picked Galileo AI, Figma AI +6 Pretzel AIYC Winter 2024AI toolingNot namedAI picked LangChain, LlamaIndex +6 PrismYC Spring 2025Abundant Intelligence for EveryoneNot namedAI picked OpenRouter, Together AI +6 PrizedYC Summer 2026A cloud devbox that feels localNot namedAI picked GitHub Codespaces, DevPod +6 ProbeYC Spring 2026The Agent-Native Research StackNot namedAI picked Weights & Biases, MLflow +6 ProliferateYC Summer 2025Do your life's work with agentsNot namedAI picked LangGraph, CrewAI +6 PromiYC Summer 2024Providing quick product and design feedback via digital twinsNot namedAI picked Gong, Dovetail +6 PromptlessYC Winter 2025An AI teammate that automatically updates your customer-facing docsNot namedAI picked Dosu, Docusaurus +6 ProtoYC Fall 2026A design tool with the accuracy of Cursor & creative freedom of FigmaNot namedAI picked Figma, v0 by Vercel +6 QuetzalYC Summer 2024Simple, LLM-first translation and internationalization for softwareNot namedAI picked Lokalise, Crowdin +6 RadiusYC Fall 2025Code and browse in the same placeNot namedAI picked Perplexity Comet, Arc +6 RaindropYC Winter 2024Sentry for AI AgentsNot named Random LabsYC Summer 2024Random labs is building long running autonomous coding agents.Not namedAI picked Cursor, Windsurf +6 ReactWiseYC Summer 2024AI Co-Pilot for Chemical Process OptimizationNot namedAI picked Synthia, AiZynthFinder +1 ReframeYC Winter 2026AI-native, hardware procurement marketplaceNot namedAI picked DigiKey, Mouser +6 RefreshYC Spring 2025Training gyms for computer use and software engineering workNot namedAI picked SWE-bench, SWE-Gym +6 ReJotYC Winter 2025We turn complex API integrations into drop‑in full‑stack libraries Not namedAI picked Stripe, Plaid +6 Relvy AIYC Fall 2024AI powered debugging notebooks for incident responseNot namedAI picked Resolve.ai, Cleric +6 renderletYC Winter 2024Build interactive applications that run anywhereNot namedAI picked WebGPU, bgfx +6 ReplicasYC Spring 2026Run any coding agent harness in the cloudNot namedAI picked GitHub Copilot Workspace, Devin +6 RepromptYC Winter 2024AI Agents for LocationNot namedAI picked Radar, TomTom +6 Resin TechnologiesYC Fall 2026Resin helps engineers design electronics faster and more reliablyNot namedAI picked CELUS, Circuit Mind +6 REV1YC Winter 2026Claude Code for Mechanical EngineersNot namedAI picked DraftAid, Draw AI (MachIntell) +6 RindlerYC Summer 2026The IDE for TokenmaxxersNot namedAI picked Claude Code, Cursor +6 RivetYC Fall 2025Explore dozens of design directions with your agentNot namedAI picked Galileo AI, Figma AI +6 RiveterYC Fall 2024Turn the web into structured dataNot namedAI picked Firecrawl, Diffbot +6 RunLocal AIYC Summer 2024AI agent that optimizes inference for embedded compute like JetsonNot namedAI picked Google AutoML, Once-for-All (OFA) +6 RuntimeYC Spring 2026The AI agent harness for payment teamsNot namedAI picked LangGraph, CrewAI +6 RysticYC Fall 2026Train models and test agents in high-fidelity simulated environmentsNot namedAI picked MuJoCo, PyBullet +6 Saphira AIYC Summer 2024The Enablement Layer for Physical AINot namedAI picked Arm, Synopsys +6 SemioticYC Fall 2025Studio-Grade Design at ScaleNot namedAI picked Mixo, Framer +6 SentrialYC Winter 2026Datadog for Agent ReliabilityNot namedAI picked LangSmith, Arize Phoenix +6 shortkitYC Winter 2026Media infra for consumer appsNot namedAI picked Mux, Cloudflare Stream +6 SideKitYC Winter 2026Consumer app studio.Not namedAI picked Qustodio, Aura Parental Controls +6 SilogyYC Winter 2024An AI-powered test and debug platform for chip developersNot namedAI picked Cadence Verisium, Synopsys VSO.ai +6 SimanticYC Fall 2026Firmware simulation for AI agentsNot namedAI picked Renode, QEMU +5 SimplexYC Summer 2024AI agents to enroll providers with payorsNot namedAI picked Assured, CredFlow AI +6 SimulithicYC Fall 2026AI users that test your app on every device and browserNot namedAI picked testRigor, Testsigma +6 SkillsyncYC Winter 2026Search your agent session historyNot namedAI picked Mem0, Zep +6 SmoothYC Fall 2024Fast, simple, reliable AI browser agentNot namedAI picked Browser-Use, Skyvern +6 Solari AIYC Winter 2024Gives non-technical team members agents that work right out of the boxNot namedAI picked Zapier, Make +6 SourcebotYC Fall 2025Helping humans and AI agents understand massive codebasesNot namedAI picked Sourcegraph, GitHub Enterprise +6 SparklesYC Winter 2026Make everyone on your team an engineerNot namedAI picked Cursor, GitHub Copilot Enterprise +6 SpecificYC Fall 2025The cloud platform built for coding agentsNot namedAI picked Replit, Lovable.dev +6 SpurYC Summer 2024Spur is the validation infrastructure enterprises use to ship at the…Not namedAI picked Tricentis, ACCELQ +6 stagewiseYC Summer 2025The makers of Klex Bots, your own team of digital coworkers.Not namedAI picked ReAct, AutoGPT +6 StarSlingYC Spring 2025Self-Driving CI: fast AI-native GitHub Actions runnersNot namedAI picked Swatinem/rust-cache, sccache +5 Stellon LabsYC Summer 2025Building tiny frontier AI models that run on edge devicesNot namedAI picked Hugging Face SmolLM2, Meta Llama 3.2 +6 StillwindYC Winter 2025PCB component librarianNot namedAI picked SnapEDA, Ultra Librarian +6 Storia AIYC Summer 2024Open source AI copilot that knows your company's code and its contextNot namedAI picked Continue, Cline +6 StructYC Fall 2024Struct keeps prod runningNot namedAI picked BigPanda, PagerDuty +6 SubtraceYC Winter 2025Zero code network tracerNot namedAI picked Pixie, BCC +6 SuperlogYC Spring 2026Make software self-healingNot namedAI picked Resolve AI, Middleware OpsAI +6 SurgeYC Fall 2024Stripe for telephonyNot namedAI picked Telnyx, Plivo +5 Synthetic SciencesYC Winter 2026Infrastructure for Autonomous ScienceNot namedAI picked Tecan, Hamilton +6 The Company CompanyYC Fall 2026The operating system for tech startups.Not namedAI picked Firmgrove, Nautis +4 The Context CompanyYC Fall 2025Find what's losing you customers and money in your AI agent and fix itNot namedAI picked Arize Phoenix, Langfuse +6 The Letter CompanyYC Fall 2026The world's first coding agent, harness, & IDE for growth engineering.Not namedAI picked Statsig, LaunchDarkly +6 The Synthesis CompanyYC Summer 2024100x faster scientific evidence synthesisNot namedAI picked Polyglot Search Translator, Covidence +6 TomaYC Winter 2024AI Applied ResearchNot namedAI picked Metaview, Juicebox (PeopleGPT) +6 TopologicalYC Summer 2025Physics-based foundation models for CAD optimization.Not namedAI picked nTop, Diabatix +6 TraceRoot.AIYC Summer 2025Open Source AI Agent Improvement PlatformNot namedAI picked Langfuse, Arize Phoenix +5 TrainLoopYC Winter 2025Reasoning Fine-TuningNot namedAI picked DeepSeek-Math, DeepSeek-R1 +4 TrimYC Winter 2025A foundation model for physics.Not namedAI picked NVIDIA Modulus, PhysicsNeMo +6 ValgoYC Winter 2026Insurance risk layer for physical AINot namedAI picked Waymo VariantYC Fall 2024Creative intelligenceNot namedAI picked Cursor, Windsurf +6 VespinYC Spring 2026An inbox for your coding agentsNot namedAI picked Claude Code, GitHub Copilot Workspace +6 VibeYC Summer 2024Making everyone a software engineerNot namedAI picked Retool, Superblocks +6 Visibl SemiconductorsYC Winter 2026Custom silicon for power electronicsNot namedAI picked TSMC, GlobalFoundries +3 vly.aiYC Fall 2024The Lovable & Replit killersNot namedAI picked Lovable, Bolt.new +6 VoidYC Summer 2024The open source Cursor alternativeNot namedAI picked Zed, VSCodium +6 VokerYC Summer 2024The Agent Analytics PlatformNot namedAI picked Langfuse, Arize Phoenix +6 VybeYC Spring 2025Secure internal apps. Built by AI in seconds. Powered by your data.Not namedAI picked Retool, Superblocks +6 WaferYC Summer 2025AI that makes AI fastNot namedAI picked FlashAttention-2, FlashAttention-3 +4 WeaveYC Winter 2025AI to understand and then route engineering workNot namedAI picked Claude 3.5 Haiku, GPT-4o-mini +6 WildcardYC Winter 2025AEO/GEO for E-Commerce and RetailNot namedAI picked Google Merchant Center, OpenAI +5 Workers IOYC Fall 2026Simulation environments for verifying mission-critical softwareNot namedAI picked Astrée, Polyspace +6 ZatannaYC Winter 2026Building the infrastructure for AI to interact with softwareNot namedAI picked Anthropic’s Claude Computer Use, OpenAI's Operator +6