Top startups in Luxembourg 2026
Independently seeded from public ecosystem coverage and company-owned pages, verified against official registers where possible. Ranking is never paid: startups are ordered by data quality and relevance, and every profile links to its sources. Looking for every Luxembourg company? Browse all companies →
Zigzag-conceptCustom textiles & promotional products
Zigzag-concept is a Luxembourg custom textiles & promotional products company.
LuxQuantumQuantum
LuxQuantum S.à r.l.-S is a Luxembourg deep-tech startup working on quantum cybersecurity, building interoperability between traditional and quantum tools (Post-Quantum Cryptography and Quantum Key Distribution). Its registered office is at 9, avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette.
digitalUsRegTech
digitalUs S.à r.l. is a University of Luxembourg (SnT) spin-off whose AI-based entity-resolution technology connects public data points into a unified digital profile to automate and speed up background screening and compliance risk intelligence.
ElleQuantFinTech
GenAI-powered SaaS for private-market investors that helps deal teams scale deal flow and surface investment insights.
Endurica EuropeMaterials Simulation
European arm of elastomer-durability software and services provider Endurica, offering CAE workflows for fatigue analysis of rubber and elastomers.
AI PlanetAI
AI platform and community (formerly DPhi) offering community-driven AI learning and an AI marketplace. AI Planet S.à r.l. is the Luxembourg entity of the AI Planet group.
Antaria LuxembourgBusiness Services
Business-services group dedicated to independent pharmacists, building solutions to develop pharmacy businesses while preserving their independence.
Astroport Space TechnologiesSpacetech
Space-construction company developing lunar in-situ construction materials from regolith and the robotic site-preparation processes needed to build landing pads and surface infrastructure on the Moon; selected for ESRIC's start-up support programme. Astroport Space Technologies S.à r.l. is the Luxembourg subsidiary of the US-based Astroport group.
BobbystoneSoftware
Technology provider behind the "Oh My Guide!" mobile app and platform, which gamifies physical spaces (cities, museums, factories, festivals) so visitors discover them through play.
CapilexFinTech
Capilex S.A. is a Luxembourg-registered fintech delivering automated, real-estate-backed business lending using AI, financial algorithms and PSD2 open-banking data.
CollectoryArt Tech
Collectory S.à r.l. audits, secures and certifies the value, ownership, authenticity and provenance of valuable artworks, pairing physical artworks to tamper-proof blockchain records and smart contracts for the art market.
DivizendFinTech
Divizend Luxembourg S.à r.l. is the Luxembourg entity of the Divizend wealth-tax fintech, which automates the reclaim of foreign dividend withholding tax for individual and institutional investors.
eduGamiTecEdTech
eduGamiTec is a Luxembourg EdTech company whose platform lets small units of curriculum be merged into digital games, turning entertainment into playful, motivating learning for children.
EPR MobilityMobility
Consultation, development and research in conventional, alternative and sustainable powertrains for vehicles and for mobile and stationary systems.
FiveofficesFlex Office Marketplace
Digital marketplace for flexible office space that connects companies seeking short- and medium-term offices with companies that have unused capacity to sublet.
Haven Cyber TechnologiesCybersecurity
Haven Cyber Technologies is a Luxembourg-based buy-and-build cybersecurity group that acquires and grows cyber security companies to provide security services for mid- and large-sized organisations.
KeymittIoT
Keymitt S.A. is a Luxembourg IoT company making smart-lock retrofitting devices and MicroBot actuators that turn traditional locks and switches into smartphone- and voice-controlled smart-home devices.
kShuttle InternationalFinTech
kShuttle International S.à r.l. is a Luxembourg-registered regtech whose ExRP platform structures ESG, tax and financial data to help large organisations comply with frameworks such as CSRD, the EU Taxonomy, IFRS 16 and Pillar Two.
Lingua Custodia LuxembourgAI
Lingua Custodia Luxembourg S.à r.l. is the Luxembourg entity of a Franco-Luxembourg fintech specialising in natural-language processing for finance, including machine translation and generative-AI document tools; it opened its Luxembourg office in 2019 and is a member of the LHoFT.
Meracle Health (Luxembourg)HealthTech
MedTech company optimising the delivery of respiratory therapy, developing a digital smart-spacer system that gives patients and clinicians real-time LED feedback on inhaler technique to improve medication delivery to the lungs.
No Big DealHealth & Wellbeing
No Big Deal S.A. is a Luxembourg startup (registered office 9 Rue du Laboratoire, L-1911 Luxembourg) that lets brands create gamified mobile health and wellbeing challenges, such as step counts and screen-time limits, rewarding users with brand discounts.
RegTech DatahubFinTech
RegTech Datahub S.à r.l. is a Luxembourg-registered regtech, a LHoFT Catapult Kickstarter winner, working on regulatory data solutions including fund look-through and .TPT (Tripartite Template) file generation.
Symbiose ManagementFinTech
Symbiose Management S.à r.l. is a Luxembourg-registered fintech building an AI- and satellite-data-driven platform for the valuation of forest assets and carbon-negative, nature-positive investment solutions.
TechnOptizDeeptech
TechnOptiz is a Luxembourg deeptech spin-off providing software sensors for biogas plants that estimate hard-to-measure variables of the anaerobic-digestion process, giving operators real-time diagnosis of biological health and reducing the risk of acidification and system failure.
Trustly EuropeFinTech
Trustly Europe S.A. is the Luxembourg-registered entity within the Trustly group, an open-banking account-to-account payments provider, listed on the LHoFT Luxembourg Fintech Map.
Tulum EnergyEnergy
Clean-hydrogen company developing a methane-pyrolysis process to produce turquoise hydrogen and solid carbon without CO2 emissions, targeting hard-to-abate industrial sectors.
Upwork Payments EuropeFinTech
Upwork Payments Europe S.A. is the Luxembourg-registered payments entity within the Upwork group, listed on the LHoFT Luxembourg Fintech Map.
WestyleFinTech
Luxembourg FinTech company developing an integrated cross-channel e-wallet and payment platform.
DataQube LuxembourgICT
DataQube Luxembourg is a Luxembourg-registered ICT company in the edge data-centre space, providing modular data-centre infrastructure.
Flawless PhotonicsSpace
Flawless Photonics is the Luxembourg-registered entity of the Flawless Photonics group, working on in-space manufacturing of high-purity optical fibre and related photonics technology.
GomSpace LuxembourgSpace
GomSpace Luxembourg is the Luxembourg subsidiary of the GomSpace group, a nanosatellite and small-satellite systems manufacturer.
Intelligentsia ConsultantsCleanTech Consulting
Intelligentsia Consultants is a Luxembourg-registered consultancy advising on innovation, sustainability and clean-technology projects and EU funding.
Redwire Space EuropeSpace
Redwire Space Europe is the Luxembourg subsidiary of Redwire Corporation, a space-infrastructure company building components and systems for satellites and spacecraft.
team size and founding year come from unverified ecosystem coverage, marked as pending in each profile's provenance table