Groupe Tera
Groupe TERA is a French publicly-traded firm (Euronext Growth Paris) that designs and sells proprietary 'Made in France' air quality sensors (NextPM, gas sensors, Safyr OPC) and operates the Atmotrack data platform, serving OEM integrators and enterprises in mobility, cleanroom, and environmental monitoring applications.
- Company typePublic
- Founded2001
- HeadquartersCrolles, France
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Groupe Tera does
Groupe TERA is a French publicly-traded company (Euronext Growth Paris, ticker ALGTR; ISIN FR0013429404) founded in 2001 by Pascal Kaluzny, headquartered in Crolles, France, and operating in air quality measurement and monitoring. The group's operating perimeter following the October 2025 divestiture of laboratory activities to CELNOR France is structured around two pillars: TERA Sensor, which designs, develops and commercializes proprietary patented 'Made in France' air quality sensors (NextPM fine particle sensors, silicon-based gas sensors, and Safyr OPC for cleanrooms) under a fabless model for OEM integrators; and Atmotrack, a digital data platform acquired in May 2025 that processes sensor data through a proprietary API integrated with external data sources (weather, health, traffic) using big-data algorithms. Revenue is generated primarily through B2B hardware sales to OEM integrators (€2.107M in 2024, +22% YoY) and nascent data/digital services; prior to divestiture, laboratory chemical-analysis services (€10.774M in 2024) contributed the majority of consolidated revenue. The go-to-market is sales-led with dedicated European OEM sales teams supplemented by distribution partnerships (notably ION Science, a global photo-ionization leader) for international reach.
The company serves OEMs integrating sensors into building, mobility, automotive and cleanroom applications (e.g., Valeo, Flowbird, ION Science, Senseware, HeX/safyr.), as well as enterprises and public-sector clients using air quality data (Transdev, Vinci, Egis, Burgeap, Soitec, Sartorius, CHU, Atmo, INSERM, IFSTTAR, ECOMESURE). The 2024 consolidated revenue was €12.882M with EBITDA of €867k, and €7.1M was reported for H1 2025; FY2025 EBITDA was €309k. The group completed its IPO on Euronext Growth Paris on July 16, 2019, and has since raised additional capital via a €5M financing (April 2023, €1.5M reserved capital increase plus €3.5M convertible bonds) and a €1.01M capital increase with preferential subscription rights (January 2025). In March 2026, an OPRA-related cancellation of 2,000,000 shares caused P2LV (controlled by the founder/CEO) to cross the 50% ownership threshold, indicating a potential going-private trajectory. Recent M&A includes Atmotrack (May 2025) and Omwave (November 2023), with Omwave integration requiring a deep reorganization that extended into H1 2025.
Groupe Tera firmographics
Firmographics- Name
- Groupe Tera
- Legal name
- S.A. à conseil d'administration Groupe TERA
- Website
- https://groupe-tera.com
- Company type
- Public
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Groupe TERA is a French publicly-traded firm (Euronext Growth Paris) that designs and sells proprietary 'Made in France' air quality sensors (NextPM, gas sensors, Safyr OPC) and operates the Atmotrack data platform, serving OEM integrators and enterprises in mobility, cleanroom, and environmental monitoring applications.
- Ownership category
- akta.pro rank
Groupe Tera industry classification
Industry- Product category
- Air Quality Sensors and Monitoring
- NAICS
- Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Indoor Air Quality (IAQ) Environmental Monitoring (VOC/CO2/PM2.5) (HSAHAGAG)
- akta.pro secondary industry
- Smart Air Quality Sensors, Purifiers & Humidifier/Dehumidifier Integration (HSAOANAH)
Keywords
Where Groupe Tera is headquartered
LocationHeadquarters
- HQ city
- Crolles
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Groupe Tera business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Supply Chain, Operations, Marketing or Sales
Revenue model
- Sensor Sales (OEM): Sale of proprietary air quality sensors (NextPM, gas sensors) to OEM integrators who embed them into their products. Sensor sales reached 2.107 M€ in 2024 with 9,770 units sold. Growth of 22% compared to 2023 but EBE remains negative at -717 k€.
- Laboratory Analysis Services: Chemical analysis of air pollutants in laboratories. In 2024, the consolidated laboratory activity generated 10.774 M€ revenue with EBE above 20% of sales. Laboratories include TERA Environnement (Crolles and Fuveau) and Toxilabo. Note: Laboratory activities were sold to CELNOR France in October 2025, so this stream will cease.
- Digital/Data Services: Environmental data exploitation through proprietary API, connected data sources, and big data algorithms. The digital activity continues construction phase, notably through strategic partnership with Flowbird. Expected to gain momentum following 1 M€ capital increase in January 2025.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | B2B sensor sales to OEM integrators |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels4 records
Groupe Tera product offering
Product offeringCore offering
Groupe TERA designs, develops, and commercializes proprietary "Made in France" air quality sensors (NextPM particle sensors and silicon-based gas sensors) sold to OEM integrators who embed them into their products. The company also operates the Atmotrack digital data platform, which provides real-time air quality analysis through a proprietary API connected to external data sources (weather, health, traffic), powered by big data algorithms. Sensor and data solutions serve industries including mobility, construction, healthcare, clean rooms, smart cities, and environmental research.
Product overview
Groupe TERA operates a three-component integrated offering focused on real-time air quality measurement: (1) TERA Sensor - designs and manufactures proprietary patented 'made in France' sensors including NextPM and Safyr OPC product lines for fine particle and gas measurement; (2) Atmotrack - a digital data platform acquired in 2025 that provides real-time air quality analysis through a proprietary API connected to external data sources using big data algorithms; and (3) digital software solutions for professional analysis of air quality data from sensors, complemented by individual citizen sensors. The company has divested its laboratory analysis business to refocus exclusively on sensor and digital data activities.
Differentiator
Problem solved
Functional benefit
Brands
- TERA Sensor: Proprietary air quality sensors 'Made in France' with patented technology for real-time measurement
- Atmotrack
- NextPM
- Safyr OPC
Products and services
- TERA Sensor (NextPM fine particle sensors) TERA Sensor designs, develops, and commercializes proprietary patented "Made in France" fine particle sensors (NextPM) and gas sensors for real-time air quality measurement. Sold under a fabless strategy to OEM integrators who embed them into their products for air quality monitoring in buildings, schools, industrial settings, mobility, and other applications.
- Atmotrack Digital Data Platform Atmotrack is a digital data platform acquired in May 2025 that provides real-time air quality analysis through a proprietary API connected to external data sources (weather, health, traffic). It uses big data algorithms to process and valorize air quality data from sensors, addressing professional needs for qualified environmental data.
- Safyr OPC Sensor Safyr OPC is an air quality measurement sensor specifically designed for ultra-demanding environments such as cleanrooms, developed in partnership with HeX Group and safyr. for semiconductor, pharmaceutical, and biotech facility applications.
Quantifiable outcome
- 9,770 sensor units sold in 2024 with 22% revenue growth in OEM sensor sales
- +2 more outcomes
Companies that use Groupe Tera
Customer profileNamed customers19 records
Segments5 records
Ideal customer profiles3 records
Groupe Tera technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
AI capability3 records
Feature4 records
Groupe Tera partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered major, core and minor.
- CELNOR FrancemajorSale of chemical analysis laboratory activities (TERA Environnement and Toxilabo) to CELNOR France, representing a major strategic transformation of the company's operational scope.
- AtmotrackcoreAcquisition of Atmotrack to add a key component for building an environmental data offering. Atmotrack provides connected sensor solutions that complement TERA's existing capabilities.
- OmwavecoreAcquisition of Omwave to strengthen position in real-time air quality monitoring. Omwave was integrated into TERA Sensor operations but the takeover proved more complex than expected, requiring significant reorganization in late 2024.
- HeX® + safyr.®minorCo-development partnership resulting in the launch of Safyr OPC sensor, an air quality measurement sensor dedicated to ultra-demanding environments (clean rooms).
- ION SciencecoreGroupe TERA signed a distribution contract with ION Science, a British manufacturer and world leader in photo-ionization sensors. ION Science distributes Groupe TERA's air quality measurement sensors as part of their comprehensive sensor portfolio, extending TERA's market reach internationally.
- Senseware (USA)minorPartnership with US technology company Senseware for the installation of NextPM fine particle sensors in all buildings of a US commercial real estate leader in 2022.
- ECOMESUREminorECOMESURE selected Groupe TERA's fine particle sensors for air quality measurement in Boston public schools in the United States, demonstrating international recognition of sensor performance.
- FlowbirdcoreStrategic and commercial partnership with Flowbird, a global leader in parking solutions. The partnership focuses on environmental data services, with a demonstrator deployed in Aix-en-Provence with over 100 measurement points. Engineers are working on joint developments to provide qualified environmental data to customers.
- ValeocorePartnership with Valeo for the development of next-generation air quality sensors. The collaboration has shown conclusive results, advancing the development of innovative sensor technology for automotive and other applications requiring precise air quality measurement.
- Sherbrooke (Canada)minorPartnership initiating Groupe TERA's development in North America through collaboration with Sherbrooke-based partners in the environmental monitoring sector.
Scale indicators15 records
Recent moves7 records
Expansion highlights6 records
Groupe Tera competitors and assessment
Company assessmentEmerging players
- Aclima: US-based company building hyperlocal air quality sensor networks and data services; comparable to Atmotrack as a data-centric AQ platform targeting buildings and cities.
- Kunak Technologies: Spanish manufacturer of air quality monitoring stations and smart sensors for environmental and industrial use; direct niche peer in the European AQ monitoring market with comparable Smart City / IoT positioning.
Direct peers
- Sensirion: Swiss manufacturer of high-precision gas and particle sensors (PM2.5, VOC, NOx, CO2) used in air quality monitors, HVAC, and automotive applications; closest listed comparator to TERA Sensor's NextPM and silicon-based gas sensor roadmap.
- Aeroqual: New Zealand-based developer and manufacturer of integrated air quality monitoring sensors and stations for indoor and outdoor use; competes head-to-head with NextPM/Atmotrack-class offerings.
- Vaisala: Finnish global leader in environmental and industrial measurement (weather, AQ, CO2); comparable as a premium instrumentation player serving meteorology, municipalities, and cleanroom customers with similar sensor + data value proposition.
- ION Science: UK-based manufacturer of photo-ionization (PID) and gas detection sensors, and a Groupe TERA distribution partner; directly comparable on VOC/AQ sensor categories and international industrial customer base.
Broad incumbents
- Bosch Sensortec: Bosch subsidiary producing MEMS gas, pressure, and environmental sensors used in consumer and automotive AQ applications; an incumbent competitor whose scale could pressure TERA's OEM positioning in automotive and smart-home channels.
- Honeywell International: Diversified industrial conglomerate with significant fixed gas detection, building AQ, and IAQ portfolios (e.g., Honeywell BW, XCD, IAQ sensors); a broad incumbent across many of Groupe TERA's target verticals.
Others
- Apogee Instruments: US manufacturer of environmental sensors (CO2, O2, PAR, spectral) used in research, agriculture, and monitoring applications; adjacent rather than directly competitive, but comparable in low-volume, high-precision sensor manufacturing for professional AQ users.
Regional players
- Air Monitors Ltd: UK-focused supplier of air quality monitoring instrumentation, sensors, and reference-grade stations; comparable through its European AQ distributor/representative role and overlap with ION Science distribution set.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Groupe Tera social profiles
Digital presenceGroupe Tera compliance and trust
Trust signalCompliance1 record
Groupe Tera financial estimates
Financial estimateRevenue estimate
Valuation estimate
Groupe Tera leadership team
Management profileNumber of profiles
Profiles4 records
Groupe Tera subsidiaries and ownership
Company hierarchySubsidiaries4 records
Groupe Tera funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Groupe Tera M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Groupe Tera
What does Groupe Tera do?
Groupe TERA designs, develops, and commercializes proprietary "Made in France" air quality sensors (NextPM particle sensors and silicon-based gas sensors) sold to OEM integrators who embed them into their products. The company also operates the Atmotrack digital data platform, which provides real-time air quality analysis through a proprietary API connected to external data sources (weather, health, traffic), powered by big data algorithms. Sensor and data solutions serve industries including mobility, construction, healthcare, clean rooms, smart cities, and environmental research.
Is Groupe Tera a public or private company?
Groupe Tera is a public company. It is classified as public and is currently operating.
When was Groupe Tera founded?
Groupe Tera was founded in 2001. It employs 51 to 100 people.
Where is Groupe Tera based?
Groupe Tera is headquartered in Crolles, France, in the Europe region.
How does Groupe Tera make money?
Three revenue lines are on record. Sensor Sales (OEM) is the primary driver. The others are laboratory Analysis Services and digital/Data Services.
Who are Groupe Tera's main competitors?
Emerging players on record are Aclima and Kunak Technologies. Direct peers are Sensirion, Aeroqual, Vaisala and ION Science. Broad incumbents are Bosch Sensortec and Honeywell International. Apogee Instruments is listed as an others. Air Monitors Ltd is listed as a regional player.
Does Groupe Tera have an API?
Yes. Groupe TERA operates a proprietary API that connects to external data sources including weather, health, and traffic data. The API is used to provide real-time air quality analysis and is part of the Atmotrack digital platform. Developers can access environmental data through this API for building applications that utilize air quality information.
What industry is Groupe Tera in?
Groupe Tera's product category is Air Quality Sensors and Monitoring. Its primary akta.pro industry code is HSAHAGAG, Indoor Air Quality (IAQ) Environmental Monitoring (VOC/CO2/PM2.5), with a secondary code of HSAOANAH, Smart Air Quality Sensors, Purifiers & Humidifier/Dehumidifier Integration. Its NAICS code is 334512 and its SIC code is 3823.