Startup directory in Europe
Browse startup organisations across Europe. Each entry links to its country, city, and sector pages.
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Deepnote
Deepnote is a collaborative, browser-based data notebook often described as “Figma for data scientists.” It enables teams to explore data, build analyses, and share results in real time without the friction of local environments. By 2026, it is a default tool for modern data teams and has significant traction in the US market. The company is a Czech-born SaaS success story with global adoption.
DeepSea Technologies
Maritime AI company building vessel-performance optimization and semi-autonomous shipping software (Cassandra, Pythia) to cut fuel use and emissions. Founded 2017, acquired by Japan's Nabtesco in 2023.
deepset
deepset is a Berlin-based AI company founded in 2018 that helps enterprises build custom natural-language and LLM applications. It created Haystack, a widely used open-source framework for retrieval-augmented generation and LLM pipelines, and offers a commercial enterprise platform on top of it for building production AI agents and search systems.
DefendEye
DefendEye is a Kraków-based deep-tech startup building fully autonomous, AI-powered tube-launched UAV systems for dual-use perimeter security and defence. Founded in 2023 by serial entrepreneur James Buchheim with a multinational team, its core product is a sub-250g drone stored in a sealed launch tube that deploys in under ten seconds via motion-triggered radar — with no trained pilot — climbs to altitude, performs AI human detection in milliseconds, and streams encrypted video to a cloud command centre before returning autonomously. The system is dual-use by design: civilian applications cover search-and-rescue and critical-infrastructure inspection, while security variants address perimeter breaches, border surveillance and active-shooter response. With an IP65 airframe, night-vision camera, onboard neural processor and optional Starlink connectivity, DefendEye targets NATO-facing procurement and is building an NDAA-compliant supply chain. It raised ~PLN 4.8M (~€1.1M) in a May 2025 seed round led by Polish deep-tech VC Hard2beat with Sunfish Partners, to finalise its commercial product and begin EU and US certification.
Defguard
Defguard is a Warsaw-based open-source cybersecurity company building the only enterprise VPN platform that embeds multi-factor authentication natively at the WireGuard protocol level, closing the gap between network access and identity that standard WireGuard deployments leave open. The fully self-hosted platform unifies VPN connectivity, identity and access management, SSO (Google Workspace, Microsoft Entra ID, Okta, LDAP, Active Directory), firewall policy orchestration and SIEM integration in a single Rust-built stack that customers run entirely on their own infrastructure — with no third-party cloud dependency and no US CLOUD Act exposure, supporting GDPR, NIS2, HIPAA and ISO 27001 compliance. Defguard spun out of teonite, a Polish software venture builder co-founded by CEO Robert Olejnik, and was publicly released on GitHub in May 2023 under an AGPL licence; its open-source core has gathered around 2,700 GitHub stars, with enterprise features under a commercial licence. In May 2025 it raised €1.2M (PLN 5.2M) in a pre-seed round led by Polish VC Hard2beat, with SMOK Ventures, S20 Team and cybersecurity firm ISEC, plus angels including Łukasz Jesis (Xopero). Version 2.0, released in April 2026, re-architected the platform with high availability and built-in SSL termination.
Delfos Energy
AI-powered asset performance management ('virtual engineer') platform for wind, solar, hydro and battery storage assets. Global HQ in Barcelona. Raised about EUR 6.3M in 2024.
Deliverect
Deliverect provides omnichannel digital ordering infrastructure for restaurants and food retail, integrating 1,000+ third-party platforms — Uber Eats, DoorDash, Deliveroo — directly into point-of-sale systems, with tools for menu management, fleet dispatch, loyalty and in-store kiosks. Founded in 2018 in Ghent by Zhong Xu, Jan Hollez, Jelte Vrijhoef and Jerome Laredo, the company reached unicorn status in January 2022 after a $208 M Series D at a $1.4 B valuation. Total funding exceeds $332 M from Coatue, DST Global and Redpoint. Deliverect now serves 96,000+ locations across 52 countries including KFC, Burger King and Chipotle.
Deliveroo
Deliveroo is a London-based food delivery platform founded in 2013 by Will Shu and Greg Orlowski. The company connects consumers with restaurants, grocery stores, and convenience retailers through its app and rider network. Deliveroo went public on the London Stock Exchange in March 2021. The company operates across the UK, Europe, Asia, and the Middle East, and has invested heavily in its Editions dark kitchen network and its advertising platform for restaurant partners. Deliveroo competes with Uber Eats and Just Eat in its core markets and serves millions of consumers monthly.
Delivery Hero
Delivery Hero is a Berlin-based global online food ordering and quick-commerce company founded in 2011 and listed on the Frankfurt Stock Exchange since 2017. The company operates food delivery platforms in more than 70 countries under local brand names and employs over 40,000 people globally. As of May 2026, Delivery Hero has a market capitalisation of approximately €13.7 billion and Uber has increased its stake to 19.5%, though no completed takeover has occurred. Delivery Hero is one of Europe's largest publicly listed tech companies.
Delora
Web3 execution layer that lets developers embed multi-chain token swaps and bridges directly into their applications through a single unified API. Execution runs on transparent, auditable smart contracts, with composable components developers integrate only as needed and a partner portal for fee monetization. Built by Delora Labs.
Demoboost
Sales enablement platform for B2B SaaS teams to build interactive product demos and personalised storylines without engineering help. Sales and marketing teams use Demoboost to accelerate pipeline, shorten sales cycles, and scale product-led-growth motions. Backed by Movens Capital.
denxpert
EHS&S compliance software provider spun out of EY Denkstatt in 2021, offering a cloud platform for environment, health, safety, ESG and CSRD reporting used by 500+ companies across 30 countries.
Depop
Depop is a social commerce marketplace for buying and selling secondhand fashion, popular among Gen Z users. Founded in London and acquired by Etsy in 2021 for $1.6 billion, Depop combines social-media-style profiles and feeds with peer-to-peer transactions. The platform has over 30 million registered users and is a leading player in the circular fashion economy.
DEScycle
Deep-tech company using Deep Eutectic Solvents — non-toxic, low-energy salts — to recover critical and precious metals from e-waste and industrial waste via a modular, distributed platform. Backed by EU Horizon, EIC Accelerator, SPRIND, Innovate UK and a Mitsubishi partnership.
DesignVerse
Bucharest-based AI platform that provides a context layer for enterprise software development, generating production-ready applications aligned to a company's existing design systems, architecture standards, and internal documentation. Upgraded EUROCONTROL's legacy software in six weeks instead of six months. Raised $5.5M seed from Begin Capital and Gapminder VC.
Detectify
Detectify is a Stockholm-based cybersecurity company founded in 2013 that offers an external attack surface management and web-vulnerability scanning platform, powered by a crowdsourced community of ethical hackers whose findings are automated into its product. It helps security teams continuously discover and monitor their internet-facing assets for weaknesses.
Devo
Devo is a cloud-native security data platform that replaces legacy SIEM with real-time analytics, SOAR, and AI-driven behavioral analytics. Founded in Madrid in 2011 as Logtrust, it rebranded to Devo and expanded globally with headquarters now in Cambridge, Massachusetts and its European hub in Madrid. The platform serves enterprise security operations centers with ThreatLink automated alert triage and Behavior Analytics AI models. Devo has raised $481M in total funding, including a $100M Series D from Georgian, Bessemer, and Insight Partners, and holds a US Air Force SIEM contract worth $9.5M.
DevSkiller
Technical skills assessment platform used by enterprise engineering teams to screen, interview, and upskill developers with real-world coding tasks. Pivoted in recent years toward developer skills management and internal capability mapping alongside hiring. Backed by Movens Capital.
Dexory
Dexory is a UK-based warehouse intelligence company that combines autonomous mobile robots with AI software to give logistics operators real-time visibility into their inventory. Founded in 2015 as BotsAndUs, it rebranded to Dexory in November 2022 after pivoting toward warehouse inventory intelligence. Its purpose-built robots autonomously scan warehouses and feed data into the DexoryView cloud platform, which builds real-time digital twins of facilities for inventory tracking and operational optimisation. The company serves sectors including third-party logistics, retail, manufacturing, and air cargo, and is headquartered in Wallingford, Oxfordshire.
Digital Health
San Marino health-technology company at Via Onesto Scavino 10 in Falciano, building applications and digital platforms for the healthcare sector. Its work covers remote patient monitoring, telemedicine consultations and patient support programmes intended to improve access to care, raise treatment adherence and reduce hospitalisations. The company holds San Marino's impresa ad alto contenuto tecnologico recognition.
