Top Open Source Startups in 2026

GitLab is the first single application for the entire DevOps lifecycle. Only GitLab enables Concurrent DevOps, unlocking organizations from the constraints of the toolchain. GitLab provides unmatched visibility, higher levels of efficiency, and comprehensive governance. This makes the software lifecycle 200% faster, radically improving the speed of business.

MongoDB is the leading modern, general purpose database platform, designed to unleash the power of software and data for developers and the applications they build. Headquartered in New York, MongoDB has more than 15,000 customers over 100 countries. The MongoDB database platform has been downloaded over 60 million times and there have been more than one million MongoDB University registrations.

Databricks' vision is to dramatically simplify big data processing. It was founded by the team that created and continues to drive Apache Spark, a powerful open source data processing engine built for sophisticated analytics, ease of use, and speed. Databricks offers a cloud-based integrated workspace for big data that lets users go from data ingest, to visual exploration and production jobs, making it easy to turn data into value, without the hassle of managing complex infrastructure, systems and tools. Databricks is venture-backed by Andreessen Horowitz and NEA.

Sysdig is the secure DevOps company, and we’re at the forefront of the container and Kubernetes revolution. We are passionate, technical problem-solvers, continually innovating and delivering powerful solutions to secure and operate cloud-native applications in production. Our consistent contributions to open source software projects reflect our commitment to the open cloud movement. We value diversity and open dialog to spur ideas, working closely together to achieve goals. And we're a great place to work too — we were awarded the 2019 Bay Area Best Places to Work Award from San Francisco Business Times and the Silicon Valley Business Journal. We are looking for team members who share our commitment to customers and are willing to dig deeper, understand problems and deliver innovative solutions.

Our integrated open source governance platform (nexus) helps more than 1,000 organizations and 10 million software developers simultaneously accelerate innovation and improve application security. our machine learning engine (nexus intelligence) has analyzed more than 65 million open source components. devops teams eliminate friction associated with manual governance and ship secure software faster than ever.

Rasa supplies the standard infrastructure for conversational AI, providing the tools required to build better, more resilient contextual assistants. With more than 3 million downloads since launch, Rasa Open Source is loved by developers worldwide, with a friendly, fast-growing community learning from each other and working together to make better text- and voice-based AI assistants. Rasa offers three key products in its suite of conversational AI offering. Rasa Open Source is the most popular open source software in conversational AI. Rasa X, released in 2019, is a free toolset that helps developers quickly improve and share an AI assistant built with Rasa Open Source. Rasa Enterprise is the company's commercial offering, providing an enterprise-grade platform for developing contextual assistants at scale. Rasa runs in production everywhere from startups to Fortune 500s, and provides the data privacy and security needed to enterprises of every size. Rasa is privately held, with funding from Accel, Andreessen Horowitz, Basis Set Ventures, and others. The company was founded in 2016 and has offices in Berlin, Germany and Edinburgh, United Kingdom

Enigma builds world-class data infrastructure, developer-friendly APIs, and intelligent tools that radically transform how businesses interact with each other. By engineering better attributes from the ground up and telling a more complete story, we empower our customers with the confidence they need to automate key business decisions. We’re a team of curious, driven individuals with diverse backgrounds and skills, but we’re all passionate about engineering deeper understanding through data—together.

Founded by the team that built Apache Kafka®, Confluent builds a streaming platform that enables companies to easily access data as real-time streams. Every byte of data has a story to tell, something of significance that will inform the next thing to be done. In a data-driven enterprise, how we move our data becomes nearly as important as the data itself. With greater speed and agility, data’s value increases exponentially. From its very early days, we have open-sourced Apache Kafka® and have led it to impressive industry-wide adoption across several thousand companies. Now we are focusing on building a streaming platform to help other companies get easy access to enterprise data as real-time streams.

ToolJet is an AI platform that empowers teams to build and deploy internal tools in minutes - turning ideas into business applications faster than ever. With 35K+ stars on GitHub, we’re one of the most loved open source platforms in the developer community. We partner with industry leaders - from telecom giants, to financial institutions, to cutting-edge unicorns and startups across the globe. Our 50-member team works across the US and India, building at the intersection of AI and productivity. Backed by Microsoft’s M12, Nexus Venture Partners, January Capital, and Ratio Ventures, we’re on a mission to redefine how businesses create software - faster, smarter, and more accessible for everyone.

AI is changing how software gets built. Code production is becoming a commodity. The focus is shifting from writing code to orchestrating, verifying, and governing change – and the toolchain is the new constraint. We're at the center of this shift. We build Develocity, the context-engineering layer for AI-driven software delivery used by some of the world's leading software organizations – Netflix, Airbnb, Spotify, SAP, major global banks, and hundreds more. Develocity helps software teams achieve delivery excellence through deep observability, build and test acceleration and efficiency, and AI-powered intelligence across the entire toolchain – for Gradle Build Tool, Apache Maven™, sbt, Bazel, npm, and Python, with support for additional build tools coming soon.