French photonics and optical engineering SME providing simulation, design, and testing services across aerospace, energy, and environmental sensing projects.
L-UP SAS is a Paris-based technology SME specializing in optics, photonics, and advanced engineering services for the aerospace, energy, and environmental sectors. They contribute optical design, simulation, and testing expertise to large European consortia — spanning lidar instruments, solar cell optics, photonic integrated circuits, composite structures, and aviation safety systems. Their work consistently sits at the intersection of physics-based modeling and hardware validation, helping research projects bridge the gap from lab prototypes to industrially viable components.
Core contributor across INREP (transparent conductive oxides), HIPERION (micro-tracking solar cells), LEMON (lidar for greenhouse gases), Be-Smart (BIPV glazing), and ELENA (lithium niobate photonic platform).
Active in MADELEINE (adjoint-based MDO with HPC), ACASIAS (integrated antennas in aero-structures), SuCoHS (high-temperature composites), IMOTHEP (hybrid electric propulsion), GREAT (trajectory optimization), and ECO-COMPASS (bio-composites for aircraft).
SENS4ICE focused on icing detection in supercooled large droplet conditions with flight test campaigns; AIRMES addressed end-to-end maintenance and systems health monitoring.
ECO-COMPASS (bio-fibre/bio-resin composites for aviation), SuCoHS (fire-resistant composite structures), and FIBRE4YARDS (fibre-reinforced plastics for shipbuilding).
ELENA (2022-2025) develops a European lithium niobate PIC platform with electro-optic modulators and monolithic integration — their most recent and forward-looking project.
FOCETA addressed foundations for dependable machine learning and trustworthy autonomy — a departure from their hardware-focused work.
In their early H2020 period (2015-2018), L-UP focused on advanced materials — indium-free electrodes for photovoltaics, bio-composites for aircraft interiors, and airline maintenance optimization. From 2019 onward, their portfolio shifted decisively toward sensing and measurement technologies (lidar for greenhouse gases, icing detection systems), high-performance solar optics, and photonic integrated circuits. The trend shows a company moving from materials-level contributions toward complete optical and sensing systems with higher integration complexity.
L-UP is positioning itself as a photonics and optical systems integrator, moving from component-level materials work toward full sensing instruments and foundry-ready photonic platforms — expect them to pursue more lidar, PIC, and electro-optic projects.
L-UP operates exclusively as a participant — across all 16 projects they have never coordinated, which is typical for a specialist SME that provides deep technical contributions rather than managing consortia. With 178 unique partners across 26 countries, they have an exceptionally broad network for their size, suggesting they are sought after as a reliable technical partner. Their participation in mostly RIA projects (13 of 16) indicates they are valued for research-intensive work rather than close-to-market demonstrations.
An unusually well-connected SME with 178 distinct consortium partners across 26 countries, giving them visibility across much of the European research landscape. Their network spans aerospace primes, photonics labs, and energy research institutes, making them a useful bridge between these communities.
L-UP occupies a rare niche as a small company that credibly spans both photonics/optics and aerospace engineering — most SMEs specialize in one or the other. Their ability to contribute optical design, simulation, and testing to projects ranging from lidar instruments to composite aircraft structures makes them unusually versatile for consortium builders. For anyone assembling a project that needs optical or photonic expertise applied to transport, energy, or environmental monitoring, L-UP brings both the technical depth and the collaborative track record of 16 successful EU project participations.
