Top Open Source Startups in 2026

PingCAP is the fastest-growing enterprise subscription company our investors have ever seen. And how are we growing so fast? By building TiDB, a globally scalable hybrid transactional and analytical database and one of the most popular open source database in the world (don’t take our word for it, check it out: github.com/pingcap/tidb), which enables companies to painlessly scale their business while keeping the underlying infrastructure simple. Our product has been trusted and verified by web-scale application leaders and adopted by over 1500 users across industries. We’re being led by the best in the space—our founders were the original creators of TiDB. We’re looking for talented and amazing team players who want to accelerate our growth, while doing some of the best work of their careers. Join us as we build the database for the future! PingCAP is founded by the team that built TiDB, a world leading open-source, cloud-native, distributed SQL/NewSQL database for elastic scale and real-time analytics, which is compatible with MySQL, and enables companies to painlessly scale their business while keeping the underlying infrastructure simple and serve as a one-stop solution for all online transactions and analysis. We have raised US$342M in total for the past 6 years, and are the most valued NewSQL company on the planet! Our products have been trusted by large scale industry leaders and adopted by over 1500 companies across different industries, including Square, PayPay, Webank, Hulu, Booking.com, Dailymotion, Shopee, Zomato, VNG, Tencent, Xiaomi, Oppo, etc.We’re looking for talented and amazing team players who want to accelerate our growth, while doing some of the best work of their careers. Join us as we build the database for the future! Community: · Twitter: twitter.com/PingCAP · GitHub: github.com/pingcap/tidb · Stack Overflow: stackoverflow.com/questions/tagged/tidb · LinkedIn: linkedin.com/company/pingcap · Community Slack: pingcap.com/tidbslack

Archesys provides a wide range of technical services and has been doing so for over 20 years, making a significant impact in the areas of organization, culture, and technology in both the private and public sectors. From digital modernization to process management, our team is the go-to resource for various government agencies looking to improve or overhaul their operations.

Upbound is the industry’s first platform for building internal cloud platforms. Designed around control planes, Upbound offers a new methodology for building an internal cloud platform, purpose-built for your organization. Customers can quickly build, deploy, manage, secure, and use their platforms all from a single point of control.

Natively store data for graph, document and search needs. Utilize feature-rich access with one query language. Cloud – On-Prem – Anywhere ArangoDB is an open-source, highly scalable Graph Database with Multi-Model capabilities. In addition to graph it is natively supporting a number of data-models including Document, and Key-Value as well as Full-Text Search and Retrieval. It serves as the scalable backbone for Graph-Analytics and complex data architectures across many different industries. Developers can build high-performance applications using a convenient SQL-like query language or JavaScript extensions. Oh, and did we mention it is open source?

We are a venture-backed tech startup with headquarters in San Francisco (Salesforce Tower) but our team is distributed across 8 timezones and we have a remote-first work culture - and not just because of Covid. Working on developer tools and open-source technology is part of our DNA. We are the maintainers of several open-source projects in the Kubernetes space: 1. vcluster - Virtual Kubernetes Clusters: vcluster.com (certified Kubernetes distribution) 2. DevSpace - Docker-Compose But For Kubernetes: devspace.sh 3. kiosk - Multi-Tenancy Extension for Kubernetes: kiosk.sh (AWS security best practice for EKS) 4. jsPolicy - Kubernetes Policies using JavaScript & TypeScript: jspolicy.com Our commercial product is called Loft (loft.sh) and brings all our open-source projects together in one platform which enables high-velocity engineering teams to move faster when building cloud-native software. Most of our customers are startup unicorns and Fortune 500 companies.

Code for America is committed to building a team as diverse as the nation we serve. We’re made up of people-centered problem solvers: technologists, advocates, storytellers, and organizers from many different backgrounds and communities around the country. We merge the best parts of technology, nonprofit, and government. We believe government at all levels can and should work well for everyone— and the mindful use of technology makes it possible. We’re known for building digital tools, but the work doesn’t stop there. We seek to transform government by showing what’s possible when communities are included in policy and service design. We use insights and ideas from real people to guide us to real solutions that break down barriers to meet community needs and improve government in meaningful ways. Want to use your skills for good and help us drive change that lasts? Join our team!

Buildly is a platform for cloud application development. We help enterprise and startup teams build well crafted applications and get to market faster with our insights driven AI communication and requirements gathering tools and our product marketplace for connecting clients with remote teams, partners and tools.

Grafana Labs provides an open and composable monitoring and observability stack built around Grafana, the leading open source technology for dashboards and visualization. There are more than 3,000 Grafana Labs customers, including Bloomberg, Citigroup, Dell Technologies, Salesforce, and TomTom, and more than 20M Grafana users around the world. Grafana Labs helps companies manage their observability strategies with the LGTM Stack, which can be run fully managed with Grafana Cloud or self-managed with the Grafana Enterprise offerings, both featuring scalable metrics (Grafana Mimir), logs (Grafana Loki), and traces (Grafana Tempo) as well as extensive enterprise data source plugins, dashboard management, alerting, reporting, and security. Grafana Labs is backed by leading investors Lightspeed Venture Partners, Lead Edge Capital, GIC, Sequoia Capital, Coatue, and J.P. Morgan.

We are building the next enterprise search engine fueled by NLP and open-source. Building on top of latest NLP research we leverage question answering & transfer learning to provide granular, semantic search results tailored to your domain. Haystack on GitHub: github.com/deepset-ai/haystack Haystack Website: haystack.deepset.ai

dOrg is a decentralized autonomous collective of builders specialized in Web3 design and development. We envision a future where power is radically decentralized – people can easily coordinate and transact without intermediaries; institutions are transparent and responsive to the needs of their constituents; voluntary collectives outcompete coercive monopolies; wealth is fairly distributed; and machines handle the boring work while humans focus on meaningful pursuits. We believe that web3 will be a key part of this future and we’re here to build it. Interested in joining our collective? Sign up here ---> airtable.com/shrtrCffLVrimVKjd