What Enviro Technology Services does

Enviro Technology Services, now operating as Cura Terrae Air, is a UK-based environmental monitoring systems provider founded in 1983 and headquartered in Stroud, Gloucestershire. The company was acquired by the Cura Terrae group of environmental companies in December 2022 and completed its rebranding to Cura Terrae Air on 10 September 2025. It sells, installs, and services air quality monitoring instruments, industrial continuous emissions monitoring systems (CEMS), and scientific research instrumentation, operating as both a UK & Ireland distributor for multiple international manufacturers (OPSIS, Palas, Aerosol Magee Scientific, Gasera, ABB-LGR, GRIMM, Droplet Measurement Technologies, Teledyne API) and an integrator of bespoke turn-key monitoring systems.

The company's core technology centres on air quality and emissions detection using Differential Optical Absorption Spectroscopy (DOAS), chemiluminescence, Cavity Attenuated Phase Shift (CAPS) spectroscopy, gas filter correlation, photoacoustic multi-gas analysis, and off-axis ICOS techniques. Its flagship CEMS offering leverages OPSIS DOAS cross-duct technology for non-contact, non-extractive stack gas measurement, supplemented by the proprietary bettair multi-parameter sensor and a zero-emission mobile monitoring laboratory called the Smogmobile. Supporting services include systems integration, installation and commissioning, Local Site Operator (LSO) coverage, CPD-certified training, 24/7 online data hosting, and recurring maintenance service contracts.

Cura Terrae Air generates revenue through a mix of one-time equipment sales (and equipment hire for temporary needs), recurring annual service contracts covering maintenance, calibration, consumables, software support, and emergency callout, and subscription-based data management services with quarterly and annual reporting. It serves four primary vertical segments: UK local authorities and government bodies for regulatory air quality compliance, industrial operators (power plants, waste incinerators, cement, steel, chemicals) for MCERTS-certified emissions monitoring, the scientific and research community for atmospheric and climate research, and export markets spanning more than 75 countries. Go-to-market is executed via direct enterprise field sales supported by 16 regional service engineers offering 48-hour emergency response, complemented by technical content marketing, industry events, webinars, and STEM outreach.

Name

Enviro Technology Services

Legal name

Cura Terrae Air Ltd

Website

https://et.co.uk

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

11–50 employees

Short description

Cura Terrae Air (formerly Enviro Technology Services) is a UK-based air monitoring systems provider, distributing and integrating continuous emissions monitoring systems (CEMS), air quality instruments, and scientific research analysers for local authorities, industrial operators, research institutions, and export markets across 75+ countries.

Ownership category

akta.pro rank

Product category

Air Quality Monitoring and Emissions Monitoring Solutions

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (3345), Analytical Laboratory Instrument Manufacturing (334516)

SIC

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

akta.pro primary industry

Climate Data Measurement & IoT/Telemetry Enablement (Energy/Meter/Asset Data Ingest) (EUABAEAI)

akta.pro secondary industries

Air Quality & Emissions Management (BPAHAJAI), Audit-Ready Controls, Assurance & Compliance Workflow Tools (CSRD/SEC/ISSB) (EUABAEAG)

Keywords

• Air quality monitoring
• Continuous emissions monitoring
• Environmental monitoring systems
• Industrial emissions analysis
• Particulate monitoring instruments

Headquarters

HQ city

Stroud

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Air Monitoring Equipment Sales: Sale of air quality monitoring instruments, industrial emissions analysers, and scientific research instrumentation. Products include continuous gas analysers, particulate monitors, BTEX analysers, greenhouse gas analysers, and CEMS equipment.
2. Service Contracts: Flexible service contracts providing ongoing maintenance, timely repairs, and proactive system checks. Includes travel, mileage, consumables, TSE helpline, software support, and emergency breakdown callout services.
3. Data Management Services: Quality-assured comprehensive reports and 24/7 online data access through personalized air quality data hosting website. Includes quarterly and annual reporting, expert recommendations, and ongoing support.
4. CEMS Solutions: Specification, installation, and commissioning of OPSIS CEMS systems for continuous emissions monitoring. Includes site visit, detailed specification, installation, and commissioning services.
5. Equipment Hire: Products available for hire in addition to purchase, providing flexible options for customers with temporary monitoring needs.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Enviro Technology Services (now Cura Terrae Air) supplies air quality monitoring instruments, industrial emissions analysers, and continuous emissions monitoring systems (CEMS), acting as UK and Ireland distributor for partner brands including OPSIS, Palas, Gasera, Aerosol Magee Scientific, ABB-LGR, Teledyne API, GRIMM Aerosol, Droplet Measurement Technologies, and bettair. The company complements its hardware portfolio with systems integration, installation and commissioning, recurring service contracts with 48-hour engineer response, 24/7 data management, training, and Local Site Operator services for local authority, industrial, and scientific/research customers across more than 75 countries.

Product overview

Cura Terrae Air (formerly Enviro Technology Services) offers a comprehensive portfolio of air monitoring products and services operating across three main categories: Air Quality Monitoring, Industrial Emissions Monitoring, and Scientific and Research Instrumentation. The product range includes continuous gas analysers (Teledyne API, AirYX, Synspec, Gasera), particulate monitors (Met One Instruments, Sintrol, GRIMM Aerosol), specialist analysers (ABB LGR greenhouse gas and isotope analysers, CVAS mercury monitors, Droplet Measurement bioaerosol sensors), and the proprietary bettair® multi-pollutant sensor. The OPSIS DOAS CEMS technology forms the core of their industrial emissions offering. Supporting the hardware portfolio is a suite of services including systems integration, data management, installation and commissioning, service contracts, training, and LSO services. The company operates as both a manufacturer of turn-key monitoring systems and as UK/Ireland distributor for major brands including OPSIS, Palas, Aerosol Magee Scientific, Gasera, and ABB-LGR.

Differentiator

Problem solved

Functional benefit

Products and services

• OPSIS DOAS CEMS Cross-duct Differential Optical Absorption Spectroscopy (DOAS) Continuous Emissions Monitoring System for non-contact, non-extractive measurement of stack gases directly as they flow through the duct. Measures NO, NO2, SO2, CO, CO2, HF, HCl, NH3, H2O, H2S, VOCs, TOC and specific aldehydes/amines. Applied in power plants, cement plants, waste incinerators, brick kilns, steel mills, glass manufacturing, and chemical industries.
• Continuous Gas Analysers Real-time gas monitoring instruments for measurement of NOx, NO, NO2, SO2, CO, CO2, O3, NH3, H2S, and other gaseous pollutants in ambient air and industrial emissions.
• Particulate Monitors Real-time and accurate monitoring of particulate matter emissions including PM10, PM2.5, PM1, and dust concentration measurement for ambient air quality and industrial applications.
• Industrial Emissions Analysers Real-time, accurate analysis of industrial emissions including certified CEMS solutions for gases and particulates, designed for compliance with environmental regulations.
• Los Gatos Research (LGR) Off-Axis ICOS Analysers ABB Los Gatos Research high performance analysers for measurement of trace gases, greenhouse gases and stable isotopes, used in scientific and research applications.
• CVAS Mercury Monitors High-performance mercury vapor analysis instruments for scientific and research applications.
• bettair Static Node Outdoor multi-pollutant indicative sensor which also measures ambient noise. Awarded as the most accurate multi-parameter air quality sensor available.
• GASERA ONE PULSE Photoacoustic Multi-Gas Analyser Versatile multi-gas monitoring solution offering accurate ppb-level detection using photoacoustic technology.
• Synspec GC955 BTEX Analyser Precise analyser for measurement of benzene, toluene, ethylbenzene, xylene (BTEX) and other hydrocarbons in ambient air.
• Sintrol 305QAL Dust Monitor MCERTS and TÜV certified Dust Emissions Monitor for official emissions measurements.
• ABB LGR GLA131-GGA Microportable Greenhouse Gas Analyser Microportable greenhouse gas analyser that simultaneously reports fugitive emissions measurements of methane and carbon dioxide.
• AirYX NO2/NOx/NO Analyser Series 200 Ultra-sensitive analyser for precise, interference-free measurement of NO2/NOx and NO.
• GRIMM Aerosol Scanning Mobility Particle Sizer Systems Particle sizer system using technology for highest size resolution and lowest particle diffusional losses, even for smallest particles.
• Droplet Measurement Technologies WIBS-5 Bioaerosol Sensor Real-time bioaerosol sensor for single particle measurement of atmospheric bacteria, moulds, pollen, and other bioaerosols.
• Met One Instruments MCERTS Particulate Profiler ES-405 Air quality sensor providing accurate real time measurements of four key particulate concentrations in both indoor and outdoor environments.
• Met One Instruments BAM-1020 Continuous Particulate Monitor Cost-effective, continuous particulate monitor that automatically measures and records airborne particulate concentration levels.
• Teledyne API T200 NOx Analyser NOx analyser using chemiluminescence detection principle for accurate and dependable low level measurements for ambient analysis or dilution CEMS monitoring.
• Teledyne API MCERTS N500 CAPS NOx Analyser Analyser measuring True NO2, NOx, and NO gases using superior Cavity Attenuated Phase Shift (CAPS) Spectroscopy.
• Trailers and Monitoring Enclosures High security steel enclosures on one or two axles and monitoring enclosures and shelters for air quality monitoring stations.
• Air Quality Monitoring Vehicle (Smogmobile) Zero-emission, mobile air quality monitoring laboratory fitted with next-generation state-of-the-art instruments that can measure pollutants and greenhouse gases in real time, both inside and outside the vehicle, while stationary or on the move.
• Air Monitoring Equipment Service Contracts Flexible service contracts providing ongoing maintenance, timely repairs, and proactive system checks for air monitoring equipment. Include travel, mileage, consumables, TSE helpline, software support, and emergency breakdown callout, delivered by experienced UK-wide engineers with a 48-hour response time.
• Systems Integration Integration of multiple analysers and ancillary items (calibration and communication systems) into a single centralised monitoring system, from design through to bespoke turn-key solutions.
• Continuous Emissions Monitoring Systems (CEMS) Solutions Complete CEMS solutions including specification, installation, and commissioning of OPSIS CEMS for measuring gaseous air pollutants and particulates from industrial processes.
• Data Management Service Comprehensive air quality data management service providing quality-assured reports, 24/7 online data access through an interactive portal, expert recommendations, and quarterly/annual reporting.
• Installation and Commissioning Customised installation and commissioning service for air monitoring systems, from planning through to handover and customer training.
• Local Site Operator (LSO) Service Regional service engineers perform routine on-site checks including calibration checks, filter changes, and site housekeeping for customers lacking in-house resources.
• Air Quality Monitoring Systems Training Bespoke analyser and systems training providing knowledge to operate air monitoring systems confidently, with CPD certificates upon completion.

Quantifiable outcome

• 48-hour emergency response time for industrial and ambient customer equipment
• +2 more outcomes

Named customers20 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and flagship.

• GaseracoreChannel Partner/ Reseller/ Distributor · 14 April 2026Cura Terrae Air announced as official UK & Ireland distributor of Gasera gas analysers, bringing their exciting range of single and multi-gas analysers to the UK and Ireland market. Gasera specialises in photoacoustic multi-gas monitoring solutions offering accurate ppb-level detection.
• Aerosol Magee ScientificflagshipChannel Partner/ Reseller/ Distributor · 1 September 2025Exclusive partnership effective 1st September 2025 for the supply of world-leading instrumentation for the measurement and research of carbonaceous aerosols, including the Aethalometer AE33 for black carbon measurement.
• Palas GmbHcoreChannel Partner/ Reseller/ Distributor · 27 May 2025Enviro Technology Services (now Cura Terrae Air) entered new supplier agreement as official UK distributor of Palas. Palas provides full QAL1/MCERTS certified real-time fine dust monitors for air quality monitoring, scientific research, and regulatory monitoring.
• dnota (bettair)flagshipChannel Partner/ Reseller/ Distributor · 12 January 2024Exclusive partnership to bring the award-winning bettair node to the UK and Ireland. Bettair provides the most accurate multi-parameter air quality sensor for real-time pollution mapping, also measuring ambient noise.
• OPSISflagshipChannel Partner/ Reseller/ DistributorUK distributor for OPSIS CEMS, bringing cutting-edge optical, cross-duct, multi-gas measurement technology. OPSIS DOAS systems allow measurement of gases directly as they flow through the stack without contact, applicable to nearly any CEM and Process Control application.
• ABB Los Gatos Research (LGR)coreTechnology or IntegrationLong-standing partnership with ABB LGR, having supplied over 100 analysers to universities, laboratories, and monitoring stations worldwide. ABB LGR provides high-performance analysers for trace gases, greenhouse gases, and stable isotopes using Off-axis ICOS technology.
• GRIMM Aerosol TechnikcoreTechnology or IntegrationPartnership for Scanning Mobility Particle Sizers (SMPS) capable of measuring ultrafine nanoparticles. GRIMM technology is known for highest size resolution and lowest particle diffusional losses.
• Droplet Measurement TechnologiescoreTechnology or IntegrationPartnership providing LiDARs using pulsed lasers for remote atmospheric aerosol monitoring, and WIBS-5 Wideband Integrated Bioaerosol Sensor for real-time single particle measurement of atmospheric bacteria, moulds, and pollen.
• Teledyne APIcoreTechnology or IntegrationPartnership for chemiluminescence NOx analysers, CO analysers using gas filter correlation, and CAPS NOx analysers providing interference-free measurements.

Scale indicators6 records

Recent moves7 records

Market position

Strengths4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/airmonitoring
• Facebookfacebook.com/envirotechnology
• LinkedInlinkedin.com/company/enviro-technology-services-plc

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Enviro Technology Services