What Fluxim does

Fluxim AG is a privately held Swiss company headquartered in Winterthur that develops simulation software and characterization hardware for research and development in organic electronics, with primary applications in OLED displays and lighting, perovskite and organic solar cells, photodetectors, and batteries. The company has operated in this niche for over 20 years and serves universities, government research institutes, and corporate R&D labs globally. Its product portfolio comprises Setfos (advanced optical and electrical device modeling for OLEDs and solar cells), Laoss (FEM-based simulation for large-area device upscaling), Paios (opto-electric characterization instrument with integrated measurement database), Phelos (angular luminescence spectrometer for EL and PL measurements), Litos and Litos Lite (multi-channel stability and JV characterization platforms with up to 56 parallel channels), Opixs (display pixel simulation software for OLED, QLED, and microLED design), and Vitios (combined PL/EL/IR imaging with electrical characterization).

Underlying technology is grounded in proprietary drift-diffusion and finite-element solvers purpose-built for organic and thin-film semiconductor devices, with a large embedded material database and 650+ research papers citing Fluxim tools as validation. The company generates revenue through quote-based software licensing (annual subscription), hardware instrument sales, and associated support and services. Distribution combines direct enterprise sales with an international distributor network, a free Setfos evaluation trial to seed academic adoption, and active engagement at industry conferences (IMID, ISOPHOS, SIMOEP, ISOS, PSCO). Customer segments are predominantly horizontal, split between research universities and institutes (primary) and industry R&D labs in display, OLED, and photovoltaic manufacturing (primary), with targeted use cases in perovskite, organic, and quantum-dot solar cell stability testing.

Name

Fluxim

Legal name

Fluxim AG

Website

https://fluxim.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Fluxim AG is a Swiss-based provider of physics-based simulation software and characterization instruments for OLED, perovskite and organic solar cell, photodetector, and battery R&D, serving universities, government institutes, and corporate R&D labs worldwide.

Ownership category

akta.pro rank

Headquarters

HQ city

Winterthur

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Supply Chain

Revenue model

1. Software Licenses: Fluxim generates revenue through licensing of simulation software products including Setfos, Laoss, Opixs, and characterization software Paios. Software is offered with evaluation periods and perpetual or subscription licensing options.
2. Hardware Sales: Sale of characterization and measurement hardware including Paios instruments, Litos and Litos Lite stability testing systems, Phelos spectrometers, and Vitios imaging equipment.
3. Support and Services: Technical support, training, and professional services associated with software and hardware products.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Fluxim designs, manufactures, and licenses simulation software and characterization hardware used by R&D teams working on OLED displays, lighting, perovskite and organic solar cells, photodetectors, and batteries. The portfolio combines device-physics simulation tools (Setfos, Laoss, Opixs) with measurement instruments (Paios, Phelos, Litos, Litos Lite, Vitios) that together cover the full R&D workflow from material characterization to large-area device optimization.

Product overview

Fluxim offers a portfolio of simulation software and characterization hardware for R&D in OLEDs, perovskite and organic solar cells, photodetectors, and battery technologies. The product suite includes: Setfos (advanced device modeling software for optical/electrical simulation of OLEDs and solar cells), Laoss (FEM-based simulation for large-area device upscaling), Paios (opto-electric characterization instrument), Phelos (angular luminescence spectrometer), Litos (multi-channel stability testing platform), Litos Lite (parallel JV and stability measurement system with up to 56 channels), Opixs (display pixel simulation software for OLED/QLED/microLED design), and Vitios (solar cell imaging platform combining PL, EL, and IR imaging with electrical characterization). All tools are designed and built in Switzerland, trusted by universities, research institutes, and industry labs worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Setfos Advanced OLED and solar cell modeling software providing a complete suite for simulating optical and electrical characteristics including light emission, absorption, light scattering, and charge transport. Used by academic and industry R&D teams to optimize OLEDs, perovskite and organic solar cells, photodetectors, and batteries.
• Laoss FEM-based simulation software for upscaling to large-area OLEDs, solar cells, displays, and PV modules, performing electrical, thermal, and optical simulations. Targets R&D teams scaling devices from lab to production.
• Paios Opto-electric characterization instrument that performs various optoelectrical characterizations on OLEDs and solar cells with one click, storing measurements in a database with analysis, comparison, and post-processing capabilities.
• Phelos Angular resolved spectrometer that measures electroluminescence (EL) and photoluminescence (PL) of OLEDs and light-emitting materials over various angles and polarization states.
• Litos Multi-channel stress-test system for accelerated degradation analysis on OLEDs and solar cells, enabling reliable assessments of device stability.
• Litos Lite JV and stability characterization instrument with up to 56 channels for parallel JV measurements and stressing at constant voltage or current, with independent MPP tracking and ISOS protocol compatibility.
• Opixs Display simulation software for testing pixel designs, analyzing power use and colour, and comparing OLED, QLED, and microLED concepts. Includes TurboLED optimization for next-generation display architectures.
• Vitios Compact imaging tool for solar cell scale-up combining PL, EL, and IR imaging with electrical characterization, with software for seamless measurement customization and embedded post-processing.

Quantifiable outcome

• 36.9% power reduction demonstrated in TurboLED display design through Opixs simulation
• +3 more outcomes

Named customers20 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature9 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Excyton LimitedcoreStrategic or Co-development Partner · 12 September 2023Collaboration on TurboLED technology - a novel pixel design for displays with stacked LEDs achieving 36.9% power reduction. Excyton fabricated prototypes and Fluxim provided Opixs simulation software for power consumption analysis.
• King Abdullah University of Science and Technology (Kaust)coreStrategic or Co-development PartnerResearch collaboration on TurboLED display technology alongside Excyton and Durham University. Contributed to development of novel pixel design for reduced power consumption and expanded color gamut.
• Durham UniversitycoreStrategic or Co-development PartnerAcademic collaboration on TurboLED research project for display technology innovation. Partnered with Excyton and Kaust on pixel design simulation and validation.
• ZHAW (Zurich University of Applied Sciences)minorStrategic or Co-development PartnerAcademic partnership for OLED research. ZHAW researchers use Fluxim tools (Paios, Phelos, Setfos) for characterization and simulation of OLEDs in various regimes.
• Stanford UniversityminorStrategic or Co-development PartnerAcademic research collaboration. Stanford researchers use Fluxim tools for perovskite solar cell and organic solar cell research. Dr. Justin Chen and Jon Bartelt cited as users.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Abet Technologies: Manufactures solar simulators and light sources widely used in PV research and stability testing, comparable to Fluxim's Litos Lite solar simulator and characterization workflow for perovskite and CQD cells.
• Sinton Instruments: Specialist in solar cell characterization instruments (lifetime, implied Voc, MPP tracking), used by the same perovskite and silicon solar cell labs that buy Fluxim's Paios and Litos Lite systems.
• Lumerical (Ansys): FDTD and photonic device simulation software widely used by OLED and PV researchers for optical modeling, directly competing with Setfos and Laoss in display and solar cell device simulation.
• COMSOL: Multiphysics simulation platform used for electrical, thermal, and optical modeling of OLEDs, solar cells, and batteries, overlapping with Setfos, Laoss, and the new Opixs display tool in both academia and industry R&D labs.
• Silvaco (Victory Device): TCAD and device simulation software used for solar cell, OLED, and semiconductor device physics, directly comparable to Setfos for drift-diffusion and optical modeling in PV and display R&D.
• Instrument Systems (Konica Minolta Sensing): Specializes in light measurement instrumentation for displays, LEDs, and OLEDs (spectroradiometers, goniophotometers), directly comparable to Phelos for angular EL/PL characterization in display R&D.
• Radiant Vision Systems: Provider of display measurement and characterization systems (luminance, color, mura) for OLED and microLED displays, overlapping with Fluxim's Phelos and Vitios for EL/PL and imaging-based device characterization.

Emerging players

• Crosslight Software (Bruker): TCAD-style device simulator focused on LEDs, laser diodes, and solar cells, with a similar drift-diffusion approach to Setfos and used by academic and industrial compound semiconductor and OLED groups.

Broad incumbents

• Synopsys (TCAD Sentaurus): Industry-standard TCAD suite for semiconductor and PV device simulation. While it serves a much broader semiconductor customer base, Sentaurus Device is used by large display and solar cell R&D teams that Fluxim also targets.
• Newport / MKS Instruments (Oriel): Broad photonics and solar simulation portfolio including Oriel solar simulators and light sources, supplying the same PV research labs that purchase Fluxim's stability and characterization hardware.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Fluxim