What TriOS does

TriOS Mess- und Datentechnik GmbH is a German manufacturer of optical measurement technology for water quality monitoring, founded in 1998 as a University of Oldenburg spin-off. The company designs and produces a portfolio of spectral sensors — photometers (OPUS, LISA UV, NICO, TW Master Series), fluorometers (RAMSES, microFlu HC, enviroFlu), radiometers, and electrochemical (eCHEM) sensors — leveraging proprietary Linear Spectral Analysis (LSA) firmware that enables precise measurements in challenging matrices including seawater, high-turbidity borehole water, and industrial effluents. Its products are deployed in drinking water utilities, municipal and industrial wastewater treatment plants, environmental monitoring agencies, marine research programs (Argo floats, Great Barrier Reef monitoring), and offshore/industrial process applications, with ruggedized variants rated for deep-sea use to 6,000m depth.

TriOS generates revenue primarily through hardware sales of optical sensors, complemented by calibration, repair, and end-of-life disposal services. The company operates a dual go-to-market model combining a direct enterprise field-sales organization (at least ten named regional managers covering EMEA, APAC, North America, South America, and Oceania) with a reseller partner network accessed via a dedicated member portal. Pricing is handled through direct sales engagement on a multi-year contract basis, with no public price list. The business is supported by a 4,000+ m² integrated facility in Rastede, Germany, housing R&D, production, and marketing; two wholly-owned subsidiaries (TriOS Analytics Southeast Asia and TriOS Analytics Oceania) were established in 2024 to support international expansion, and a new networked intelligent buoy product (ÉCHO) was launched in 2025-2026, signaling an evolution from discrete sensor sales toward integrated monitoring systems.

Name

TriOS

Legal name

TriOS Mess- und Datentechnik GmbH

Website

https://trios.de

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

51–100 employees

Short description

TriOS is a German manufacturer of optical sensors for water quality monitoring, serving utilities, wastewater operators, environmental agencies, and marine research programs worldwide through spectral photometers, fluorometers, and electrochemical sensors.

Ownership category

akta.pro rank

Product category

Water Quality Monitoring Sensors

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Analytical Laboratory Instrument Manufacturing (334516)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Laboratory Analytical Instruments (3826)

akta.pro primary industry

Water Quality Monitoring (Surface Water, Stormwater, Drinking Water) (EUAHACAC)

akta.pro secondary industries

Water Quality Monitoring, Compliance & Reporting (Sampling, Lab, Regulatory) (EUANAAAG), Watershed/Source Water & Raw Water Quality Monitoring (intakes, reservoirs, groundwater) (EUANAJAH)

Keywords

• Water quality sensors
• Optical measurement technology
• Spectral photometers
• Marine fluorometers
• Environmental monitoring instruments

Headquarters

HQ city

Rastede

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Optical Sensors and Measurement Devices: TriOS generates revenue primarily from the sale of optical sensors including photometers, fluorometers, radiometers, and eCHEM sensors for water quality monitoring applications.
2. Calibration and Maintenance Services: The company offers calibration services (including MEPC calibration), repair services, and maintenance through their RMA process, with turnaround times of approximately 5-6 weeks.
3. Disposal Services: End-of-life equipment disposal services for old TriOS equipment in accordance with Electronic Equipment Act requirements.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

TriOS designs, manufactures, and sells optical sensors and measurement instruments for water quality monitoring. The product range covers photometers (OPUS, LISA UV, NICO), fluorometers (RAMSES, microFlu HC, enviroFlu), radiometers, and electrochemical (eCHEM) sensors used in drinking water, wastewater, environmental, marine research, and industrial process applications. The offering is complemented by the TW Master Series for drinking water, controllers, accessories, the SEPIA environmental sub-brand, and the ÉCHO networked measurement buoy. All production stages are carried out at the company site in Rastede, Germany.

Product overview

TriOS Mess- und Datentechnik GmbH is a German manufacturer of optical sensors for water analytics with over 25 years of experience. The product portfolio centers on spectral measurement technology including photometers (OPUS, LISA UV, NICO), fluorometers (RAMSES, microFlu HC, enviroFlu), and electrochemical sensors (eCHEM). The offering follows a modular approach with core sensors complemented by the TW Master Series for drinking water, controllers for system integration, and accessories. The SEPIA sub-brand handles environmental sensor systems. Key platforms include OPUS with Linear Spectral Analysis (LSA) firmware for challenging environments, LISA UV for organic carbon monitoring, and NICO for reagent-free nitrate detection. Applications span drinking water, wastewater, environmental monitoring, marine research, and industrial process monitoring worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• SEPIA: Spectral sensor brand mentioned on the website as sepia-sensors.com

Products and services

• OPUS Hyperspectral Photometer Hyperspectral photometer featuring Linear Spectral Analysis (LSA) firmware that compensates for environmental effects and ensures precise nitrate detection in challenging water conditions including seawater, brackish water, and industrial processes. Designed for marine and deep-sea deployment to 6000m depth.
• LISA UV Photometer Immersible photometer for monitoring organic carbon (SAC254) and water quality parameters, used in environmental monitoring, moor rewetting, and wastewater treatment applications, with automatic cleaning systems.
• NICO UV-Absorption Photometry Sensor Reagent-free UV-absorption photometry sensor for nitrate monitoring with multiple detection channels that compensate for turbidity, enabling precise measurements even in borehole water with high sediment loads and response times under 20 seconds.
• RAMSES Spectral Light Measuring Device Spectral-resolution light measuring device (radiometer) for marine research and environmental monitoring applications, originally developed as the first spectral-resolution light measuring device available on the market.
• TW Master Series Sensor series specifically designed for drinking water applications, providing precise and continuous measurements for monitoring drinking water quality parameters such as nitrogen and carbon compounds.
• TW-Turb Turbidity Sensor Turbidity sensor for water quality monitoring in drinking water and environmental applications.
• ecoTurb Turbidity Measurement Device Turbidity measurement device for environmental and water monitoring applications.
• CUBE Compact Measurement Device Compact measurement device for water quality parameters, used in monitoring applications.
• microFlu HC Oil Detection Sensor UV fluorescence sensor for detecting trace oil concentrations (ppb range) in marine environments using polycyclic aromatic hydrocarbons (PAH) detection, with automatic daylight compensation and titanium housing.
• enviroFlu Environmental Fluorometer Environmental fluorometer for hydrocarbon detection in marine and industrial applications, with titanium housing and RS-485 Modbus RTU interface.
• TriOS Controllers Control units for managing and operating TriOS sensor networks and data acquisition systems.
• SEPIA Environmental Sensor Systems Sub-brand for environmental sensor systems, operating from a separate website at sepia-sensors.com, extending TriOS's environmental monitoring portfolio.
• ÉCHO Intelligent Measurement Buoy Networked intelligent measurement buoy for continuous in-situ water quality analysis, designed to bring bodies of water to speak through comprehensive water analytics, with wireless data transmission.
• Calibration, Repair, and Disposal Services Post-sale services for TriOS equipment including MEPC calibration, repair through an RMA process, and end-of-life disposal in accordance with the Electronic Equipment Act, offered to all sensor customers.

Quantifiable outcome

• Response times under 20 seconds for NICO sensors
• +3 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature13 records

Partnerships

Five partnerships are on record, tiered core and minor.

• IC ENDÜSTRİcoreChannel Partner/ Reseller/ Distributor · 1 January 2025Turkish distribution and implementation partner for TriOS sensors. Delivered and installed ten monitoring stations equipped with TriOS sensors (LISA UV, pH, conductivity, dissolved oxygen) for ISU Kocaeli wastewater monitoring project. Collaborated at IFAT Eurasia trade show.
• SEPIAminorOthersRelated sensor brand/entity mentioned on TriOS website. SEPIA sensors are referenced as a separate product line on the TriOS ecosystem.
• German Water Partnership (GWP)minorOthersIndustry association membership providing networking and industry representation in the German water sector.
• DWA (Deutsche Vereinigung für Wasserwirtschaft)minorOthersGerman Water Association membership for industry networking and professional development in water management.
• NWZ (Nordwest-Zeitung)minorOthersRegional media partnership, likely related to local news coverage in the company's home region.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• s::can Messtechnik GmbH: Austrian manufacturer of optical water quality sensors (spectrometers, UV-Vis probes, nitrite/nitrate/carbon monitors) for drinking water, wastewater, and environmental monitoring — the most direct head-to-head competitor to TriOS in Europe with overlapping product positioning and customer base.
• Sea-Bird Scientific: Marine-focused oceanographic sensor manufacturer (CTD, ECO fluorometers/turbidity) deployed on Argo floats and moorings — competes directly with TriOS RAMSES, microFlu, and OPUS sensors in marine research and autonomous platform deployments.
• Aanderaa Data Instruments: Norwegian oceanographic and marine monitoring sensor maker (SeaGuard, oxygen/optical sensors) comparable to TriOS in marine and aquaculture applications, especially for offshore and coastal water quality monitoring.

Broad incumbents

• Hach (Lange / Danaher): US-based broad-line water quality instrumentation supplier covering photometry, electrochemistry, and process analytics with global distribution; competes with TriOS on multi-parameter tenders while offering broader portfolio scale.
• Endress+Hauser (Liquiline / spectro::lyser): Swiss-headquartered process instrumentation conglomerate with a dedicated UV-Vis spectrometer (spectro::lyser) for nitrate, carbon, and SAC measurement in water/wastewater — overlaps with TriOS OPUS/LISA/NICO in industrial and municipal process monitoring.
• Xylem Analytics (WTW / YSI): Global water technology group with WTW photometers and YSI multi-parameter water quality sondes serving the same drinking water, wastewater, and environmental lab/field markets as TriOS with significantly larger scale and distribution.
• Yokogawa Electric (Process Analyzers): Japanese industrial automation leader with process liquid analyzers (nitrate, turbidity, pH) used in power, water, and chemicals industries; broad incumbent competitor to TriOS in industrial process monitoring segments.
• HORIBA (Water Quality): Japanese analytical and measurement instrument conglomerate offering water quality analyzers, fluorometers, and spectrophotometers — broader portfolio but overlapping with TriOS in environmental fluorescence and laboratory-to-process water analytics.

Emerging players

• Atlas Scientific: US-based emerging player in low-cost water quality sensing probes for environmental monitoring, aquaculture, and hobbyist/industrial edge use cases; partial overlap with TriOS in reagent-free monitoring but serving a different price and channel.

Regional players

• SOMMER Messtechnik (or equivalent regional Austrian-German optical probe maker): Austrian/Swiss optical water sensor manufacturer focused on UV-Vis immersion probes for drinking water and wastewater — region-overlapping niche competitor comparable to TriOS in EU alpine and DACH-region tenders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/triosgmbh
• LinkedInlinkedin.com/company/trios-mess--und-datentechnik-gmbh
• Instagraminstagram.com/triosanalytics

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries2 records

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 TriOS