Venture Building startup ecosystem
We track 6 organisations in this sector across 6+ countries.
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1Kubator
Founded in 2015 by Alexandre Fourtoy. 1Kubator is a private incubator network in 10+ cities that forms startups from scratch in a 10-month program, and provides pre-seed funding typically €15K-€35K (often around €25K for about 10% equity) via the 1KVEST fund managed by Phitrust Impact Investors. Supported 500+ entrepreneurs. Scope: National.
Antler Berlin
Antler Berlin is the German branch of Antler's day-zero venture-building model, designed for people who want to start companies before they have a finished team or fully formed idea. Instead of operating like a conventional accelerator that waits for startups to apply, Antler brings together selected founders, operators, and domain experts, then structures an intensive process around co-founder matching, problem discovery, validation, and early company formation. The Berlin program matters because it plugs into one of Europe's deepest pools of technical, industrial, and cross-border startup talent. It is especially relevant for B2B SaaS, climate, and deep-tech founders who need both an initial company-building framework and access to follow-on capital. In ecosystem terms, Antler Berlin sits at the very beginning of the funding pipeline, upstream from seed funds and growth investors. That makes it a useful counterpart to more established accelerators and incubators already in the directory, broadening coverage of how new startups are formed in Germany before they become visible to mainstream venture capital. It also reinforces the directory's mapping of institutions that shape founder formation, not just later-stage company financing.
Demium
Founded 2013. Talent incubator that forms teams and builds startups from idea stage in a 6-month program, with up to EUR 100K pre-seed from its fund. Expanded to multiple European cities; reports 78% survival across 40+ companies. Scope: International.
Palta
Palta is a Cyprus-based venture studio focused on consumer health and wellness applications built around subscription economics. Rather than acting as a passive investor, it helps create and scale products by centralizing growth, product, marketing, and monetization capabilities that individual app teams would struggle to build alone in the early stages. That model is especially effective in mobile health categories where onboarding, retention, experimentation cadence, and paid acquisition are central to company outcomes. In the European ecosystem, Palta stands out because it applies venture-building discipline to consumer health software rather than to generalist B2B startups. It is therefore a useful counterpart to broader venture builders in the directory while also connecting to wearable and digital-health companies through its category focus. Palta expands the directory's picture of how consumer health businesses are incubated and scaled, especially when the core advantage lies in mobile growth systems rather than in proprietary hardware.
Tesonet
Tesonet is a Vilnius-based founders-led venture builder founded in 2008 by Tomas Okmanas and Eimantas Sabaliauskas. The group builds, accelerates, and invests in technology products across cybersecurity, AI, web intelligence, EdTech, and SportTech verticals. Its portfolio companies include Oxylabs, Surfshark, and nexos.ai, in addition to the better-known Nord Security and Hostinger. The group employs over 3,500 people and operates Cyber City, a 35,000 m² tech campus in Vilnius.
Venture Catalysts
Venture Catalysts is an innovative venture studio and venture builder program based in Porto, Portugal, specializing in spinning up companies from scientific research and technical projects. Founded around 2015 (with roots as a university initiative), Venture Catalysts takes a hands-on approach to pair scientists and engineers with business co-founders to create startups in fields like medtech, cleantech, and AI. The program identifies promising technologies (often from local universities like University of Porto or from labs across Portugal) and provides a structured process to form a company, develop an MVP, and obtain early funding. Each year, it selects a batch of projects and offers resources such as lab access, initial capital (seed grants or investment from partnered funds), and a network of corporate partners for pilots. A distinctive feature is how it integrates venture building with funding: Venture Catalysts can provide seed capital through grants or its partnered VC funds (often up to €200k), and also connects teams with larger investors for follow-ons. The studio’s track record includes helping create SWORD Health (digital physiotherapy startup that became a unicorn) and AddVolt (electric truck battery solution acquired by Daimler). These successes highlight the model’s efficacy – both companies started as technical projects in Portugal and through Venture Catalysts’ support, gained product-market fit and international traction. The venture studio is backed by both private and public stakeholders (it has worked with Portugal’s innovation agency and corporates like EDP in energy tech). Located in Porto’s up-and-coming innovation district, Venture Catalysts has contributed to making Porto a deep-tech startup hub beyond the usual Lisbon scene. The program puts heavy emphasis on team formation – often recruiting experienced entrepreneurs or MBAs to join scientific founders as CEOs or business leads, ensuring startups have both technical depth and commercial acumen. With a regional focus, it has kept many high-tech startups in Northern Portugal, strengthening the local ecosystem. In summary, Venture Catalysts serves as a venture co-founder for scientists – turning lab breakthroughs into viable companies by providing the missing pieces (business talent, early capital, industry links). Its portfolio’s achievements, like SWORD Health’s growth, demonstrate the powerful potential of the venture studio model in catalyzing innovation.
