Developer Tools Companies

Cursor (Anysphere)

San Francisco, United States

Cursor, built by Anysphere, is the leading AI-first code editor for pair programming with AI. Raised $2.3B in 2025 at a $29.3B valuation, becoming the fastest-growing dev tool.

Vercel AI

San Francisco, United States

Vercel AI provides a frontend cloud platform and AI SDK enabling developers to rapidly deploy AI-powered web applications. Their technology abstracts away the complexities of managing AI model integrations, API keys, and infrastructure through features like Fluid Compute and built-in adapters. Vercel AI targets developers prioritizing speed and ease-of-deployment for AI applications, offering a streamlined workflow from development to production with integrated security features.

Vercel

San Francisco, United States

Vercel is a frontend cloud platform providing developers with the infrastructure to build and deploy web applications. Their core offering is an AI Cloud, integrating AI SDKs and edge functions to enable personalized and dynamic web experiences. Vercel targets web developers seeking to leverage AI capabilities directly within their frontend applications, focusing on performance and scalability.

Retool

San Francisco, United States

Retool is a developer platform enabling businesses to rapidly build and deploy custom internal tools. Their core offering is a unified engine that connects to diverse data sources – including databases, APIs, and Large Language Models – with a focus on production-grade reliability. Retool targets organizations seeking to overcome engineering bottlenecks and efficiently create purpose-built software for operational workflows, data management, and AI integration without extensive coding.

Redis

Mountain View, United States

Redis provides a fully-managed, in-memory data platform optimized for real-time applications, including those leveraging artificial intelligence. Their core offering is Redis Stack, which incorporates vector databases and semantic search capabilities to accelerate AI workloads like chatbots and LLM-powered agents. Redis targets developers seeking to reduce latency and infrastructure costs associated with AI applications by providing a high-performance caching and data storage layer.

Auth0 AI

Buenos Aires, Argentina

Auth0 AI, now part of Okta, provides identity and access management solutions enhanced with artificial intelligence. Their platform utilizes AI-driven adaptive authentication and bot detection to secure both human users and AI agents across applications. Targeting developers and organizations building AI-powered applications, Auth0 AI uniquely addresses the growing need for secure access control in environments increasingly reliant on machine interaction.

Periodic Labs

San Francisco, United States

Periodic Labs is building next-generation AI training infrastructure. They raised a massive $300 million seed round led by Felicis and Andreessen Horowitz, one of the largest seed rounds in history.

Augment

Palo Alto, United States

Augment provides AI-powered coding assistance for enterprises, understanding entire codebases for contextual suggestions.

Sauce Labs

San Francisco, United States

Sauce Labs provides a cloud-based platform for automated software testing across web and mobile applications. Their core offering leverages AI-powered “Intelligent Agents” to enhance test coverage, error reporting, and overall software quality at scale. Targeting DevOps and quality assurance teams, Sauce Labs differentiates itself through access to a vast infrastructure of real devices, emulators, and browsers, combined with AI-driven insights to accelerate release cycles and improve digital experiences.

Sourcegraph

San Francisco, United States

Sourcegraph is a code intelligence platform that enables developers and AI agents to efficiently navigate and understand large, complex codebases. Their core technology is a universal code search engine, coupled with tools like Cody, an AI coding assistant designed to operate effectively within extensive and often legacy code environments. Sourcegraph targets enterprise development teams struggling with code complexity and aims to improve both human and AI-driven code comprehension and maintainability at scale.

Replit

San Francisco, United States

Replit is a collaborative, browser-based Integrated Development Environment (IDE) that simplifies software creation and deployment across multiple languages. Its core offering, including features like Ghostwriter, leverages large language models to provide AI-powered code completion, generation, and explanation directly within the IDE. Replit targets a broad range of developers – from students and beginners to professionals – and has gained traction as a platform for educational coding and rapid prototyping, boasting over 3 million users and supporting deployments to various cloud providers.

Sentry

San Francisco, United States

Sentry provides application performance monitoring and error tracking software for software development teams. Their platform utilizes AI-powered error analysis and tracing to pinpoint the root cause of application issues – from specific code commits to slow database queries – across the entire application stack. Targeting DevOps and development teams, Sentry streamlines debugging workflows and facilitates faster issue resolution with integrations for popular development tools like Slack, Jira, GitHub, and more.

BuilderAI

London, United Kingdom

Here's a company description for BuilderAI, based on the provided information and aiming for factual, specific, and professional language: BuilderAI is a UK-based technology company that streamlines custom software development through an AI-powered assembly process. Their core product utilizes generative AI to combine pre-built, tested software components – including UI elements, APIs, and backend functions – into functional applications. This approach targets businesses seeking rapid, cost-effective development of bespoke software solutions without requiring extensive in-house coding expertise.

Mux

San Francisco, United States

Mux is a US-based provider of video infrastructure and APIs that enable developers to seamlessly integrate high-quality live and on-demand video functionality into their applications. Their core technology centers around a robust video processing pipeline and API offering features like rapid video still extraction and customizable playback. Mux targets developers and businesses seeking to efficiently build and scale video experiences without the complexities of managing underlying video infrastructure.

Nylas

San Francisco, United States

Nylas provides a unified API platform enabling developers to integrate email, calendar, and meeting functionality into their applications. Their core technology is a connectivity layer supporting bi-directional data sync with over 250 providers – including Gmail, Microsoft 365, and Zoom – eliminating the need for individual integrations. Nylas targets developers seeking to accelerate the build of communication-driven features, such as scheduling automation or contextual in-app messaging, without the complexities of managing diverse provider APIs.

GoodData

San Francisco, United States

GoodData is a US-based platform provider specializing in embedded, agentic AI for business intelligence. Their composable data intelligence platform enables developers to rapidly build and deploy custom AI applications and automated workflows directly within existing applications. GoodData targets businesses seeking to enhance their offerings with AI-driven insights and automation, particularly those prioritizing developer control and scalable performance.

Poolside

Paris, France

Poolside is a French foundation model company developing AI agents specifically for software development and deployment within enterprise environments. Their core technology focuses on building and operationalizing large language models to enhance developer productivity and automate coding tasks. Unlike many AI providers, Poolside prioritizes data security and control by offering on-premise, VPC, or workstation deployment options, targeting organizations with stringent compliance and security requirements.

Render

San Francisco, United States

Render is a cloud platform specializing in application deployment and scaling for developers. Their core offering is a unified infrastructure enabling users to build, deploy, and manage applications – including those leveraging AI – without managing underlying infrastructure. Render targets developers seeking a streamlined, end-to-end platform for rapid application delivery and scalability, with recent integrations focused on debugging AI applications via tools like Claude Code and Cursor.

Warp

San Francisco, United States

Warp develops a next-generation terminal and agentic development environment enabling developers to build and deploy applications with integrated AI assistance. Its core innovation lies in allowing users to chain together customizable AI “Agents” – powered by models like OpenAI’s GPT – directly within the terminal to automate tasks ranging from code generation and debugging to deployment workflows. With over 500,000 users, Warp is rapidly gaining traction as a productivity tool for software engineers seeking to accelerate their development cycles and leverage AI throughout the entire application lifecycle.

Codeium

Mountain View, United States

Codeium develops Windsurf, an AI-native integrated development environment (IDE) and coding assistant. Utilizing a proprietary AI model called Cascade, Windsurf provides code completion and contextual awareness across 70+ programming languages. Targeting professional developers and enterprise teams, Codeium aims to enhance coding efficiency and maintain developer workflow through its AI-powered tools.

Tinybird

Madrid, Spain

Tinybird is a real-time data platform that lets developers build data products and analytics APIs at any scale. Processes billions of rows instantly.

Lightning AI

New York, United States

Lightning AI provides a cloud-based platform for the full AI development lifecycle, from coding and prototyping to training, scaling, and serving models. Built by the creators of the open-source PyTorch Lightning framework, their platform simplifies AI development by offering a zero-setup, browser-based environment. Lightning AI targets machine learning engineers and data scientists seeking to accelerate model development and deployment without infrastructure management.

PostHog

San Francisco, United States

PostHog is an open-source product analytics platform with session replay, feature flags, A/B testing, and surveys. Used by 50,000+ companies.

Tabnine

Tel Aviv, Israel

Tabnine develops AI-powered coding assistants, including its core product – a code completion tool available as a cloud-based service and self-hosted option – that integrates with over 50 IDEs and editors. Leveraging deep learning models trained on billions of lines of publicly available, permissively licensed code, Tabnine offers features like whole-line and full-function code completion, as well as AI-powered code suggestions and debugging assistance. Recognized by Gartner as a leading AI assistant for code generation, Tabnine serves enterprise development teams seeking to improve developer velocity while maintaining code privacy and compliance.

Clerk

San Francisco, United States

Clerk provides a complete, full-stack authentication and user management solution for web application developers. Their core offering is a suite of pre-built, customizable UI components and backend infrastructure designed specifically for modern JavaScript frameworks like React, Next.js, and Remix. Clerk targets companies building SaaS products and web applications seeking to rapidly integrate robust user accounts, organization management, and subscription billing without extensive in-house development.

Modal

New York, United States

Modal provides serverless cloud computing platform optimized for AI/ML workloads. Raised $87M Series B at $1.1B valuation.

n8n

Berlin, Germany

n8n is an open-source workflow automation platform with native AI capabilities. Enables building AI-powered automations with 400+ integrations and code flexibility.

Builder.io

San Francisco, United States

Builder.io is a visual development platform with AI-powered code generation. Their Visual Copilot converts Figma designs to code, and they build tools for creating performant websites and apps with drag-and-drop editing.

Braintrust

San Francisco, United States

Braintrust is an enterprise-grade platform for evaluating and improving AI applications. Provides tools for logging, evals, datasets, and prompt playground.

LangChain

San Francisco, United States

LangChain is a US-based developer tools company providing an open-source framework and engineering platform for building applications powered by Large Language Models (LLMs). Their core offering centers on “chains,” “agents,” and memory modules that enable developers to construct complex LLM-based workflows and applications with enhanced observability through their LangSmith tracing tool. LangChain targets AI developers and engineering teams seeking to rapidly prototype, deploy, and monitor reliable LLM applications without vendor lock-in, offering both pre-built architectures and low-level customization options.

Railway

San Francisco, United States

Railway is a cloud infrastructure platform that simplifies the deployment and scaling of applications, with a specific focus on AI and machine learning workloads. The company provides developers with tools for local development and one-click deployments, abstracting away the complexities of cloud infrastructure management. Railway targets developers seeking to rapidly prototype and scale applications without requiring deep expertise in DevOps or distributed systems.

Codacy

Lisbon, Portugal

Codacy provides automated code review and analysis using AI to detect security vulnerabilities, code patterns, and quality issues.

Locofy

Singapore, Singapore

Locofy is a design-to-code platform that automates the conversion of UI designs from tools like Figma into clean, production-ready React, Next.js, and mobile code. Utilizing a proprietary AI model trained on design patterns and code structures, Locofy accelerates front-end development workflows. Their primary target market is web and mobile development teams seeking to reduce manual coding efforts and improve design-to-deployment velocity.

Exafunction

Mountain View, United States

Exafunction develops Windsurf, an AI-native integrated development environment (IDE) and coding assistant powered by large language models. Windsurf aims to improve developer productivity by providing contextual code completion, remembering codebase specifics, and maintaining workflow continuity. The company targets professional software developers and enterprises seeking to accelerate development cycles and improve code quality through AI-assisted tools.

LiveKit

San Francisco, United States

LiveKit is an open-source platform for building realtime audio and video applications. Powers voice AI agents with ultra-low latency infrastructure.

Botpress

Quebec City, Canada

Botpress is a Canadian company offering an open-source platform for developing and deploying AI agents. Their platform distinguishes itself through a no-code/low-code studio environment and extensive integration capabilities, enabling businesses to automate a wide range of workflows. Botpress targets developers and organizations seeking a flexible, self-hosted solution for building conversational AI applications powered by large language models (LLMs).

Exa

San Francisco, United States

Exa (formerly Metaphor) provides neural search API using embeddings to find semantically similar content across the web.

Continue

San Francisco, United States

Continue is an open-source AI code assistant platform that integrates into VS Code and JetBrains IDEs. With 20K+ GitHub stars, it allows developers to create custom AI assistants using any model.

Lovable

Stockholm, Sweden

Lovable enables anyone to build software through conversational AI, generating full-stack applications from descriptions.

LlamaIndex

San Francisco, United States

and aiming for a factual, specific, and professional tone: LlamaIndex provides a data framework and end-to-end agentic workflow platform designed to connect large language models (LLMs) with diverse data sources, including documents and images. Their core innovation lies in delivering highly accurate, OCR-powered document understanding and retrieval, enabling the creation of AI agents for complex tasks like automated document processing and enterprise automation. LlamaIndex targets businesses seeking to build LLM-powered applications requiring reliable data ingestion and contextual understanding from unstructured data, and positions itself as a leading framework for agentic workflows.

Craft AI

Paris, France

Craft AI is a French MLOps provider specializing in pre-built and custom AI applications designed for enterprise deployment. Their platform focuses on data sovereignty and security, keeping data on-premise while offering solutions across departments like marketing, operations, and IT. Craft AI targets organizations seeking to improve efficiency and competitiveness with trustworthy, explainable AI, while also prioritizing cost control and carbon footprint reduction.

Humanloop

London, United Kingdom

Humanloop provides tools for evaluating, improving, and deploying LLM applications. Helps teams ship reliable AI products with prompt management, evaluation, and fine-tuning.

Vapi

San Francisco, United States

Vapi provides a platform for developers to build and deploy configurable voice AI agents. Their core technology is a comprehensive API enabling advanced conversational AI functionality for phone-based applications. Vapi targets a broad market ranging from startups to large enterprises seeking to automate phone operations and create scalable voice AI products.

Phind

San Francisco, United States

Phind is an AI search engine for developers, providing code-focused answers and explanations with its own fine-tuned models.

Supermaven

San Francisco, United States

Supermaven provides the fastest AI code completions with a 1 million token context window. Founded by the creator of Tabnine, it offers ultra-low latency autocomplete that understands your entire codebase.

Speechly

Helsinki, Finland

Speechly is a Finnish company specializing in real-time Automatic Speech Recognition (ASR) technology delivered via a streaming API. Their core product is a cloud-based ASR engine optimized for low-latency transcription and understanding, particularly in demanding applications like real-time communication and interactive voice response systems. Speechly targets developers building voice-enabled applications requiring high accuracy and speed, offering a developer-friendly alternative to traditional, batch-oriented speech-to-text solutions.

Sieve

San Francisco, United States

Sieve provides infrastructure for deploying and scaling video and audio AI. Offers pre-built AI functions and serverless compute for media processing.

Browserbase

San Francisco, United States

Browserbase provides serverless headless browser infrastructure, enabling developers to reliably and scalably integrate web access into AI agents and automated applications. Their core offering is a managed platform compatible with tools like Playwright, eliminating the need for users to maintain browser infrastructure themselves. This positions Browserbase as a cost-effective alternative to solutions like Browserless, targeting developers building AI-powered web applications and automation workflows.

Inngest

San Francisco, United States

Inngest is a workflow orchestration platform for AI and backend engineers. Enables building reliable, event-driven applications with automatic retries.

Reface

Kyiv, Ukraine

Reface develops AI-powered mobile applications, specializing in generative AI technology for hyperrealistic face swapping and content personalization. Beyond its consumer-facing face swap application, the company offers a platform enabling clients to rapidly prototype and validate AI-driven mobile app concepts without requiring extensive coding. Reface targets businesses and entrepreneurs seeking to leverage generative AI for innovative mobile experiences, offering a low-barrier entry point for app development and validation.

Vellum

San Francisco, United States

Vellum is a development platform for building production-ready LLM applications. Provides prompt engineering, evaluation, deployment, and monitoring tools.

Resend

San Francisco, United States

Resend is an email API for developers that makes sending emails simple and reliable. Built by the creator of React Email.

Langfuse

Berlin, Germany

Langfuse is an open-source LLM engineering platform for tracing, evaluation, prompt management, and metrics to debug and improve LLM applications.

Not Diamond

San Francisco, United States

Not Diamond is an AI model router that automatically selects the best LLM for each query. Optimizes for quality, cost, and latency across multiple model providers.

Portkey

San Francisco, United States

Portkey is an AI gateway that helps teams ship reliable, cost-efficient, and fast AI applications. Provides unified API, observability, guardrails, and caching for LLMs.

Trigger.dev

London, United Kingdom

Trigger.dev is a platform for running long-running background jobs with automatic retries and observability. Perfect for AI workflows and data pipelines.

AgentOps

San Francisco, United States

AgentOps provides observability and developer tools for AI agents. Their platform helps teams build, monitor, and debug reliable AI agents at scale with session replays and analytics.

Zindi

Cape Town, South Africa

Zindi operates a competitive platform hosting machine learning challenges sourced from organizations across Africa. Their core offering connects a community of over 100,000 data scientists and AI builders with real-world problem sets, offering prize money and recruitment opportunities as incentives. This model addresses the shortage of skilled AI talent in Africa while providing businesses access to innovative solutions and a pipeline of qualified candidates.

DeepSeek

Hangzhou, China

DeepSeek is a China-based AI company developing and releasing open-source large language models (LLMs) focused on coding and general reasoning capabilities. Their product line includes DeepSeek-LLM, DeepSeek-Coder, and the recently released DeepSeek-MoE, utilizing a Mixture-of-Experts architecture for enhanced performance. DeepSeek targets developers and researchers by providing both open-source models and commercial API access to their advanced LLMs.

Booster Robotics creates humanoid robot products, uniting developers globally to drive productivity evolution with developer-friendly tools.

Code Metal

San Francisco, United States

Code Metal accelerates critical industries with provably correct, automated code translation and optimization between programming languages.

GitLab

San Francisco, United States

GitLab provides a comprehensive DevSecOps platform integrating AI-powered features throughout the software development lifecycle. Their core offering, GitLab Duo, utilizes large language models to deliver contextual code suggestions, automated vulnerability detection, and conversational AI assistance directly within the platform. Targeting professional software development teams, GitLab aims to accelerate development velocity and improve code security by embedding AI capabilities into every stage of the process.

Holberton School

San Francisco, United States

Holberton School is a post-secondary institution offering an intensive, project-based computer science education. Their curriculum focuses on foundational CS principles and practical application of technologies like TensorFlow, React, and C, preparing students for roles in software engineering. Targeting career switchers and aspiring developers, Holberton differentiates itself by emphasizing why things work, not just how, and boasts a strong track record of graduate placement at leading tech companies.

Teachable Machine

Mountain View, United States

Teachable Machine is a web-based platform developed by Google that enables users to rapidly create machine learning models using a no-code interface. The platform focuses on image, audio, and pose-based recognition, allowing individuals to train custom models directly within their browser. Primarily targeting educators, artists, and hobbyists, Teachable Machine lowers the barrier to entry for machine learning by eliminating the need for programming expertise and facilitating quick prototyping for integration into web applications and creative projects.

Helicone

San Francisco, United States

Helicone is an open-source observability platform for LLM applications. Provides logging, analytics, rate limiting, and caching with one line of code integration.

Greptile provides an AI-powered API that understands entire codebases. Enables developers to build code search, documentation, and understanding tools.

Pythagora

San Francisco, United States

Pythagora builds GPT Pilot, an AI coding agent that writes entire applications from scratch. Enables developers to build apps through conversation with AI.

Tavily

San Francisco, United States

Tavily provides a search API optimized for AI agents and RAG applications. It delivers clean, LLM-ready search results, helping developers build AI applications that need real-time web information.

Goose AI

San Francisco, United States

Goose is an open-source AI agent framework by Block (Square) that goes beyond coding. It can write and execute code, debug errors, interact with the file system, and runs entirely locally for enterprise security.

Factory

San Francisco, United States

Factory builds AI-powered coding agents, termed “Droids,” that automate software development tasks including coding, testing, and deployment. Their core technology centers on agent-native software development, enabling these agents to function within existing developer tools and CI/CD pipelines without requiring workflow modifications or model integrations. Factory targets both startups and enterprises seeking to accelerate development cycles and automate routine engineering tasks.

Pieces for Developers

Cincinnati, United States

Pieces for Developers provides a local, context-aware AI companion for software developers. Its core technology centers on capturing and managing workstream data – from browsers, IDEs, and collaboration tools – to provide long-term memory and contextual recall for large language models. This differentiates Pieces by offering enhanced developer productivity and data privacy through on-device processing and LLM integration, targeting individual developers and teams prioritizing control over their data.

Raycast

London, United Kingdom

Raycast develops a keyboard-driven launcher and productivity toolkit for macOS and Windows. Its core technology centers on a customizable extension framework enabling integration with developer tools, internal systems, and external APIs – increasingly leveraging large language models for task automation and information retrieval. The company targets professional developers and power users seeking to enhance workflow efficiency through keyboard-centric control and extensible functionality.

Gradio

New York, United States

Gradio provides open-source Python libraries and a platform for rapidly building and sharing web-based user interfaces for machine learning models. Its core technology centers on automatically generating interactive web components from Python functions, eliminating the need for traditional web development skills. Gradio targets machine learning practitioners and researchers seeking streamlined tools for model demonstration, testing, and deployment – particularly those prioritizing speed and ease of use over highly customized frontends.

Streamlit

San Francisco, United States

Streamlit provides an open-source Python library enabling data scientists and machine learning engineers to rapidly build and deploy interactive data applications. Its core technology centers on automatically handling UI updates and state management based on Python code, minimizing front-end development requirements. Streamlit uniquely targets the gap between data science experimentation and production deployment, facilitating easy sharing and collaboration on ML models and analyses.

Kapa.ai

San Francisco, United States

Kapa.ai develops AI agents specifically for customer self-service, focused on providing accurate answers to technical questions. Their core technology centers on retrieval-augmented generation (RAG) applied to proprietary technical documentation, enabling AI assistants trained on a company’s specific knowledge base. They target software companies and technical product teams seeking to improve support efficiency and reduce reliance on human agents, demonstrated by a client base including OpenAI, Docker, and Mapbox.

Mendable

San Francisco, United States

Mendable provides a platform for developers to build and deploy custom AI chat applications focused on knowledge retrieval. Their core technology centers on enabling businesses to train secure AI agents on proprietary technical documentation and data sources. They target sales and support teams seeking to automate responses to customer and employee inquiries, thereby reducing support ticket volume and improving response times.

Meilisearch

Paris, France

Meilisearch develops an open-source, lightning-fast search engine designed for developers. Its core technology centers on a customizable ranking algorithm and optimized indexing for sub-50ms response times, enabling relevant “search-as-you-type” experiences. Meilisearch targets developers seeking to integrate powerful, easily deployable search and AI retrieval capabilities into web applications and platforms without complex configuration.