Developer Tools startup ecosystem
We track 171 organisations in this sector across 6+ countries.
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Rust Warsaw Meetup: October 2026
The October meeting of Rust Warsaw, the city's community for the Rust programming language. The group meets in person in Warsaw to go into Rust, share experience and connect, and keeps a Telegram channel running between events.
Salih Güler
Senior developer advocate at AWS focused on frontend, cross-platform and web development across the JavaScript ecosystem. He is an announced speaker at the 2026 ZurichJS Conf in Zurich.
Sascha Konietzke
Sascha Konietzke is Co-founder of the headless-CMS company Contentful. A founder in the German startup ecosystem, Sascha leads the headless-CMS company Contentful.
Scott Tolinski
Software engineer at Sentry, co-host of the Syntax.fm web development podcast and founder of the Level Up Tutorials education platform for JavaScript and frontend developers. He is an announced speaker at the 2026 ZurichJS Conf in Zurich.
Sebastian Bergmann
Sebastian Bergmann is the creator of PHPUnit, the most widely adopted unit testing framework for the PHP programming language, used by millions of developers worldwide. He is Co-Founder of thePHP.cc, a German consultancy specializing in software quality, PHP architecture, and test-driven development. Bergmann is a prolific open-source contributor and internationally recognized speaker at major software development conferences. His work on PHPUnit has had a foundational impact on software quality practices in the PHP ecosystem.
Situm
Situm (Situm Technologies, S.L.) is a Spanish indoor positioning and wayfinding technology company, describing itself as a worldwide leader in the category for over a decade. Its solutions include interactive indoor maps, indoor and outdoor navigation, and geolocation-based tracking, delivered through Visual Mobile and Web SDKs and REST APIs for developers. Situm's technology is used in hospitals, airports, retail spaces, campuses, and transit systems, including an indoor wayfinding app deployed in Turkish hospitals.
Snyk
Snyk is a developer security platform founded in 2015 in London that helps software teams find and fix vulnerabilities in open-source dependencies, container images, infrastructure-as-code, and proprietary code. The company raised over $1 billion in funding and reached a peak valuation of $8.5 billion in 2021, becoming one of Europe's most valuable cybersecurity startups. Snyk integrates directly into developer workflows and CI/CD pipelines, positioning security as a developer-first concern. It serves over 1,500 enterprise customers including Google, Salesforce, and Atlassian.
Sofia GDG DevFest 2026
Bulgaria's edition of the global Google Developer Group DevFest, held annually in Sofia with 600+ developers. Covers Android, Flutter, web, cloud (GCP), Firebase, and AI/ML engineering with talks in English from local and international speakers. Free admission; a primary networking event for Sofia's developer community which includes large local employers like VMware, SAP Labs, and a growing startup scene.
SOLANA BUILD STATION WARSAW
An eight-day build space for Solana developers preparing for the Colosseum Hackathon, running at The Shire on the 12th floor of Zebra Tower in Warsaw. The programme opens on 6 October at midday and combines co-working with mentoring and networking, closing with the demo day on 13 October.
Spacelift
Infrastructure automation platform for engineering teams using Terraform, OpenTofu, CloudFormation, Pulumi, and Ansible. Spacelift helps enterprises manage IaC workflows, policy controls, and secure cloud deployments at scale.
Spring I/O
Organizer of Spring I/O, a major European conference for the Java and Spring ecosystem. Spring I/O is an event organiser based in Barcelona, Spain. Organising events in the Events, Java, Developer Tools, Open Source space.
Spring I/O 2026
Leading European conference for the Spring and Java ecosystem at Palau de Congressos, with deep technical talks by framework contributors and backend experts. Strong channel for enterprise Java, fintech infrastructure, and data-platform tooling startups.
SREcon26 EMEA 2026
USENIX's SREcon Europe/Middle East/Africa is held at the Convention Centre Dublin for site reliability and production engineers. The conference features interactive learning sessions, demonstrations, keynotes and panels on building and operating large-scale, reliable systems.
Stanislas Polu
Co-founder and CTO of Dust and a former research engineer at OpenAI, where he worked on reasoning and formal mathematics, now building enterprise AI agents.
Storyblok
Storyblok is a headless content management system founded in 2017 in Linz, Austria by Dominik Angerer and Alexander Feiglstorfer. The platform provides a visual editor and API-first architecture that enables developers and marketing teams to create, manage, and publish content across websites, mobile apps, and digital displays from a single source. Storyblok has raised over $80 million from investors including Mubadala Capital, HV Capital, and 3VC. The company serves thousands of customers including Adidas, Tesla, and Pizza Hut. As a fully remote-first Austrian company that competes with Contentful and Sanity, Storyblok is a standout example of enterprise SaaS innovation from outside Europe's traditional tech hubs.
Superteam Poland
Superteam Poland is the Polish chapter of Superteam, the community organisation of the Solana ecosystem. It supports developers building on Solana with grants, bounties and job opportunities, and runs the country's Solana events, including the Colosseum Hackathon build space and demo day in Warsaw.
Swan
French embedded-banking (banking-as-a-service) platform letting software companies embed accounts, cards and payments. Licensed electronic money institution authorised by the French ACPR; partnered with BNP Paribas.
Swiss JavaScript Group
Non-profit developer community based in Zurich that runs ZurichJS meetups and the annual ZurichJS Conf, Switzerland's premier JavaScript and TypeScript conference. It gathers hundreds of developers, engineering leads and dev-tool startups for talks, workshops and networking around modern web technologies.
Talent Arena 2026
Developer-first event aligned with MWC week, featuring coding sessions, architecture deep dives, and hackathon-style programs around AI, cloud, and cybersecurity. Useful for startup engineering recruiting and employer branding with senior technical talent.
Tatum
Tatum is a developer platform that unifies dozens of blockchain protocols into a single API, allowing enterprises to build crypto features without specialized blockchain teams. The platform abstracts wallet creation, transactions, and smart contract interactions into simple endpoints. By 2026, Tatum positions itself as the “Stripe for crypto infrastructure,” serving banks and fintechs that want to launch regulated digital-asset services. Its focus is on reliability and developer speed rather than speculative crypto exposure.
