Startup directory in Europe
Browse startup organisations across Europe. Each entry links to its country, city, and sector pages.
Showing 541–560 of 1189 Startup
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Kahoot!
Kahoot! is an Oslo-based game-based learning platform that has transformed how educators, trainers, and corporate teams engage audiences through interactive quizzes, presentations, and knowledge checks. The platform has hosted billions of cumulative participants across 200+ countries and serves both the K-12 education market and enterprise training use cases. Kahoot! went public on the Oslo Stock Exchange and has acquired complementary edtech products including Clever and Motimate to expand its learning ecosystem. With its combination of consumer virality and enterprise adoption, Kahoot! is one of Norway's most recognizable global technology brands and a defining example of gamification applied to learning at massive scale.
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Kaia Health
Kaia Health is a Munich-based digital therapeutics company that develops prescribable smartphone apps for chronic conditions, including Kaia Rueckenschmerzen for back pain and a COPD programme, delivering physiotherapy exercises, relaxation techniques and education. Kaia Rueckenschmerzen is registered as a Class IIa medical device and is reimbursable in Germany through the DiGA prescription pathway, where patients activate the therapy with an access code from their statutory or private health insurer. The company is legally registered as kaia health software GmbH, headquartered in Munich.
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Kantox
Kantox is a Barcelona-founded currency management automation company whose FX risk management software helps finance teams automate foreign exchange workflows, including dynamic hedging, dynamic pricing across currencies, in-house FX netting, payments and collections, and hedge accounting. It serves industries such as travel, adtech, logistics, food, chemicals, pharma, and manufacturing, and has grown to more than 200 people across offices in Barcelona and London. As of July 2023, Kantox is a BNP Paribas company but continues to operate independently under its own brand.
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Katalist
Katalist is a Slovenian-founded generative-AI startup building an end-to-end pre-production workspace for video: writers and directors can import or draft a script, let the system break it down into beats, shots, and storyboards, generate consistent character and location renders, and iterate on the look of every scene before a single frame is filmed. The key differentiator is character- and setting-consistency across shots — the hard problem that plagues early image and video models — which Katalist addresses with reference-conditioning and scene graphs rather than naive prompt chaining. The target users are in-house content teams at brands, boutique production studios, and advertising agencies that have to produce far more video than their traditional pipelines can absorb, and that need a visual ideation layer that survives client feedback cycles. The company graduated from 500 Global's Eurasia program and is one of the more interesting European pre-production tools competing with the LTX Studio / Showrunner generation of US AI-film products.
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Katana
Cloud inventory and manufacturing (MRP) software for product businesses, with real-time stock control across channels and production workflows. Founded 2017 in Tallinn.
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Keboola
Keboola provides an all-in-one data operations platform for connecting, cleaning, and orchestrating data pipelines. It is known for flexibility, modularity, and an enterprise-grade pay-as-you-go model. The company has been profitable for years and raised a late Series A to accelerate global expansion. By 2026, Keboola is a trusted DataOps layer for mid-market and enterprise customers.
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Keelvar
AI-native agentic sourcing and procurement-optimization platform that automates enterprise sourcing events end-to-end, optimizing over $100bn in annual spend. Customers include Mars and Coca-Cola. Founded 2012.
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Keepz
QR-based payments fintech founded in Tbilisi in 2023. Keepz enables merchants to accept payments via Apple Pay, Google Pay, bank cards, open banking, and cryptocurrency without requiring customers to download an app. The company was the first in Georgia to obtain an open banking licence and, in December 2024, helped Georgia become one of the first countries to enable tax payments via digital assets. It has onboarded over 20,000 merchants and is expanding into Turkey and Italy.
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Kencko
Kencko is a Portuguese-founded direct-to-consumer brand selling instant fruit-and-vegetable smoothie mixes designed to be ready in 30 seconds without shopping, chopping or cleanup. The company cites Harvard-linked nutrition research behind its products and reports more than a million members and tens of thousands of customer reviews.
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Kerecis
Kerecis is an Icelandic biotech and medical technology company known for developing wound-healing products derived from fish skin. Its work is notable because it turns a locally abundant natural material into a clinically relevant regenerative scaffold used in difficult wound-care cases, including burns, trauma, and chronic ulcers. The biological rationale and manufacturing approach set it apart from software-led health companies: this is a deep life-science and materials business built around research, regulatory rigor, and medical adoption. In the European ecosystem, Kerecis is a useful example of how world-class biotech can emerge from a small geography when the product is grounded in differentiated science and clear clinical utility. It expands the directory's health coverage into advanced materials and tissue regeneration, complementing digital health and wearable platforms without overlapping with them. For the broader startup map, Kerecis shows that high-impact European innovation is not limited to apps or infrastructure, but also includes biologically sophisticated products with global medical significance.
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Keybotic
Keybotic (Keybotic S.L.) is a Barcelona-based robotics company, headquartered at the Parc Tecnologic Barcelona Activa, building Keyper, an autonomous robot-dog for industrial inspection. Keyper patrols facilities, navigates 3D-mapped routes, and uses visual, thermal, and acoustic sensing with AI to detect gas leaks, thermal anomalies, and equipment failures in real time, targeting chemicals, oil and gas, energy and utilities, mining, and research facilities. The company's technology won first prize at the DARPA Robotics Challenge and it has been awarded a Eureka Eurostars grant for advanced robotic solutions.
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Keyrock
Keyrock is a Brussels-based digital-asset market-making and trading firm offering market making, OTC and options trading, onchain liquidity provisioning, and asset-management strategies for crypto markets. It also provides ecosystem-development and validator services, publishes crypto-market research, and recently raised Series C funding from SC Ventures.
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Kilo Health
Kilo Health is a Vilnius-based digital health company founded in 2013 that builds, acquires, and scales a portfolio of 30+ health and wellness apps spanning weight management, fitness, mental health, chronic disease management, and personal care. The company serves over 7 million paying customers globally and employs 500+ people across Lithuania, Germany, and Latvia. Kilo Health operates as a health-app studio, applying performance marketing expertise and data-driven product iteration to grow individual apps rapidly. It is one of the largest and most profitable digital health companies in the Baltics, demonstrating Lithuania's strength in consumer app businesses.
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Kiutra
Kiutra is a Munich-based deep tech startup developing cryogenic systems and services for quantum technologies. The company manufactures helium-3-free cryostats that reach sub-kelvin and millikelvin temperatures, including the L-Type Rapid, X-Type, S-Type, and T-Type product lines, and offers cryogenic characterisation lab services for quantum device development. Kiutra serves leading quantum computing companies and research institutions globally and is a sponsor of Finnish Quantum Days 2026.
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Kiwi.com
Kiwi.com is a Brno-founded online travel agency that uses proprietary Virtual Interlining technology to combine flights from airlines that do not formally codeshare, creating unique multi-carrier itineraries unavailable on traditional booking platforms. The platform searches across 750+ carriers including low-cost airlines, trains, and buses to find the cheapest routes. Founded in 2012 by Oliver Dlouhy, the company grew rapidly and became one of the largest travel booking platforms in Europe, processing tens of millions of bookings annually. Kiwi.com also offers a Guarantee product that protects travelers on self-transfer connections.
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Klarna
Klarna is a Swedish fintech company that pioneered the “buy now, pay later” (BNPL) model globally. Founded in 2005 by Sebastian Siemiatkowski, Niklas Adalberth, and Victor Jacobsson, Klarna started by offering online shoppers in Sweden a way to purchase goods on invoice (pay after delivery). Over the next decade, the company expanded across Europe and beyond, becoming a dominant online payments provider. As of 2021, Klarna was Europe’s highest-valued private tech company at $45.6 billion, reflecting meteoric growth fueled by consumers’ appetite for installment payments. Klarna’s app and services allow users to split purchases into interest-free installments or pay later, and it partners with over 450,000 retailers worldwide, including global brands like H&M, IKEA, and Nike. The company has over 150 million users across 45 countries and handled $80 billion in transaction volume in 2021. Klarna’s journey, however, has seen dramatic swings: after reaching a $45B valuation in mid-2021, a combination of rising interest rates and tech market downturn led to a downround in 2022, cutting its valuation to $6.7 billion (an 85% drop). The company restructured, laying off 10% of its staff, and refocused on profitability. By 2023, Klarna returned to profit and saw renewed growth, aided by expanding beyond BNPL into a full shopping app with price comparison, loyalty features, and banking services (Klarna obtained a banking license in Europe in 2017). In 2025, Klarna reportedly delayed an IPO amid market volatility but ultimately went public in September 2025, raising $1.37 billion. Despite valuation fluctuations, Klarna remains the global leader in BNPL, with a strong brand among Gen Z and millennial shoppers. Its journey from a small Stockholm startup to a financial giant serving 65 million customers (2025) at one point valued at $75 billion exemplifies the rise (and resiliency) of Europe’s fintech sector.
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KleinVision
KleinVision is the creator of the AirCar, a dual-mode vehicle that can drive on roads and transform into a certified aircraft. The AirCar has received a Certificate of Airworthiness and completed cross-country test flights, making it one of the few credible flying-car projects globally. By 2026, the company is working toward small-scale production and licensing partnerships, including interest from international markets such as China.
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Kneip
Kneip is a Luxembourg-founded investment-data and fund-reporting company that sits in the plumbing between asset managers, fund domiciles, and the distribution channels (banks, platforms, regulators) where funds are actually sold. For decades it has been one of the largest providers of European fund data dissemination, handling NAVs, KIIDs/PRIIPs KIDs, MiFID II data templates, and regulatory reporting packages for hundreds of asset managers — unglamorous but absolutely load-bearing infrastructure for the EUR 5-trillion-plus Luxembourg fund industry. In 2022 Kneip was acquired by Deutsche Börse and integrated into the group's data-services business, effectively turning a Luxembourg-grown fund-tech operator into part of a top-tier European exchange's data franchise. It is a clean example of how Luxembourg's tax and legal specialization in funds translates into globally relevant software companies that outsiders rarely hear about.
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Kodesage
AI platform that maps, documents and modernises legacy enterprise software entirely on-premises, keeping source code and data inside the customer's environment. Built for regulated banking, insurance and energy; raised a $6.6M seed led by VentureFriends.
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Kognic
Kognic is a Gothenburg-based AI company, formerly known as Annotell, founded in 2018 that provides a data platform for annotating and refining the sensor data used to train and validate perception systems in automated driving and other safety-critical AI. Its tools help automotive and robotics teams align their datasets and models with human intent.
