Air quality monitoring companies are at the forefront of tackling air pollution challenges, offering innovative technologies to assess and improve air quality. This industry comprises businesses that supply devices and solutions for real-time monitoring of pollutants, essential for public health and regulatory compliance. With growing awareness of the health impacts associated with poor air quality, the market is moving towards advanced monitoring systems that incorporate IoT and data analytics. As air quality becomes a priority for cities globally, these companies are poised for growth in supporting smarter air management and informing environmental policy decisions.

The companies featured in this list range from small teams to larger entities, showcasing their specialization in air quality solutions. Many are headquartered in regions affected by diverse air pollution challenges, with founding years stretching from the early 1980s to recent startups. Whether focusing on advanced sensor technology or software for data analytics, these firms share a commitment to providing accurate air quality monitoring crucial for communities, health authorities, and businesses alike. Their geographic spread from Europe to Asia illustrates a global push towards enhanced air quality stewardship.

Continue reading to explore the top air quality monitoring companies.

Top 22 Air Quality Monitoring Companies

1. IQAir: First in Air Quality

• Website: iqair.com
• Ownership type: Venture Capital
• Headquarters: Steinach, St. Gallen, Switzerland
• Employee distribution: China 45%, United States (USA) 28%, Switzerland 20%, Other 7%
• Latest funding: $3.3M, August 2020
• Founded year: 1963
• Headcount: 501-1000
• LinkedIn: the-iqair-group

IQAir: First in Air Quality, founded in 1963 and based in Steinach, Switzerland, is an air quality technology company that focuses on monitoring and purification solutions. With a workforce of around 242 employees, the company has established itself as a significant player in the air quality sector. IQAir offers a variety of products, including advanced air purifiers and air quality monitoring devices, designed for consumers, businesses, and organizations that prioritize clean air. Their operations extend to a digital platform that provides real-time air quality data, allowing users to track pollution levels and engage with their community. IQAir has also received funding, with a notable amount of $3.3 million reported in August 2020, indicating investor confidence in their mission to improve air quality globally. The company collaborates with various organizations, including the United Nations and Greenpeace, to promote awareness and action against air pollution, further highlighting their commitment to the industry.

2. Aeroqual

• Website: aeroqual.com
• Ownership type: Private
• Headquarters: Auckland, Auckland, New Zealand
• Employee distribution: New Zealand 87%, United States (USA) 9%, Libya 4%
• Founded year: 2001
• Headcount: 51-200
• LinkedIn: aeroqual-ltd

Aeroqual, founded in 2001 and based in Auckland, New Zealand, is a private company focused on air quality monitoring solutions. With a workforce of around 53 employees, Aeroqual designs and delivers integrated systems that allow for real-time measurement of air quality. Their offerings include a variety of products such as portable and fixed monitoring systems, advanced software for data management, and consulting services aimed at helping clients comply with air quality standards. The company has established a strong presence in multiple sectors, including construction, industrial hygiene, and government, and has been involved in over 500 projects in the U.S. alone. Aeroqual's innovative sensor technology and commitment to providing reliable data have made them a trusted partner for organizations worldwide, including collaborations with government agencies like the U.S. EPA.

3. Clarity Movement Co.

• Website: clarity.io
• Ownership type: Venture Capital
• Headquarters: Berkeley, California, United States (USA)
• Employee distribution: United States (USA) 80%, United Kingdom (UK) 10%, China 10%
• Latest funding: Series A, $9.6M, July 2022
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: claritymovement

Clarity Movement Co., based in Berkeley, California, is a company focused on air quality monitoring solutions. Established in 2014, Clarity offers a comprehensive suite of products, including advanced air quality sensors and cloud-based data management services. Their innovative Sensing-as-a-Service model combines hardware, software, and expert support, allowing clients to effectively monitor air pollution. Clarity serves a wide range of customers, from government agencies to community organizations, all of whom require precise air quality data for regulatory compliance and public health initiatives. The company has been involved in numerous projects globally, deploying their sensors in cities like London, Paris, and Los Angeles, and has received $9.6 million in funding as of July 2022, reflecting strong investor interest in their solutions. Clarity's commitment to improving air quality management is evident in their partnerships and the impact of their technology on communities worldwide.

4. Airly

• Website: airly.org
• Ownership type: Private
• Headquarters: Palo Alto, California, United States (USA)
• Latest funding: Series A, $5.5M, November 2022
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: airlypl

Airly, founded in 2016 and based in Palo Alto, California, is a private company specializing in air quality monitoring. With a team of approximately 39 employees, Airly provides real-time data solutions that cater to the needs of governments, businesses, and communities. Their offerings include advanced air quality sensors, a robust data platform for analysis, and mobile applications designed to monitor air quality effectively. The company aims to empower clients with accurate data and actionable insights to understand and mitigate air pollution. Airly has gained traction in the industry, evidenced by their recent Series A funding of $5.5 million in November 2022, which supports their growth and innovation initiatives. Their commitment to community engagement is also notable, as seen in campaigns like #LetSchoolsBreathe, which aim to enhance awareness and improve air quality in local areas.

5. Met One Instruments, Powered by Acoem

• Website: metone.com
• Ownership type: Private
• Headquarters: Grants Pass, Oregon, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1989
• Headcount: 51-200
• LinkedIn: met-one-instruments-inc.

Met One Instruments, Powered by Acoem, is a private company based in Grants Pass, Oregon, specializing in air quality monitoring and meteorological instruments. Established in 1989, the company has built a reputation for manufacturing high-quality devices that serve a wide array of applications, from regulatory compliance to environmental monitoring. Their product lineup includes regulatory air quality monitors, indoor air quality solutions, gas analyzers, and meteorological systems, among others. Met One Instruments is dedicated to providing accurate and reliable data, which is crucial for their clients, including regulatory agencies, environmental consultants, and industrial hygiene professionals. The company emphasizes superior customer service and offers extensive support, including calibration and training, ensuring that their clients can effectively utilize their products. With a focus on innovation and customization, Met One Instruments continues to adapt to the evolving needs of the air quality monitoring industry.

6. Airveda

• Website: airveda.com
• Ownership type: Private
• Headquarters: Ghaziabad, Uttar Pradesh, India
• Employee distribution: India 96%, United States (USA) 4%
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: airveda

Airveda, based in Ghaziabad, Uttar Pradesh, India, is a private company founded in 2016 that specializes in air quality monitoring solutions. With a team of 11 to 50 employees, Airveda focuses on providing comprehensive solutions for both indoor and outdoor air quality management. Their product range includes advanced air quality monitors and a data platform that allows for real-time monitoring and analysis. The company serves a wide array of clients, from individual consumers to businesses and organizations, all aiming to enhance air quality and minimize pollution exposure. Airveda is recognized for its innovative use of IoT and AI technologies to tackle air pollution and climate change. They have received accolades such as the Air Quality Monitoring System of the Year at the Good Air Summit & Awards 2024, highlighting their impact in the industry. Their mission extends beyond just monitoring; they aim to make air quality data accessible for policymakers and empower citizens to take action for better air quality.

7. Atmo

• Website: atmotube.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 90%, Lithuania 10%
• Latest funding: Seed, November 2020
• Founded year: 2015
• Headcount: 11-50
• LinkedIn: atmotube1

Atmo, officially known as Atmotech Inc., is a San Francisco-based company specializing in air quality monitoring and environmental technology. Founded in 2015, Atmo has developed a range of products aimed at helping consumers and businesses monitor air quality in real-time. Their flagship products include the Atmotube PRO, a portable air quality monitor, and the Atmocube, an indoor environmental monitoring system. These devices measure various pollutants, including particulate matter and volatile organic compounds, providing users with critical data to make informed decisions about their air quality. Atmo's solutions cater to a variety of settings, from residential homes to commercial buildings, emphasizing the importance of creating healthier environments. The company has also engaged in research projects and partnerships to enhance its offerings and contribute to the broader discourse on air quality management. With a small team of around 21 employees, Atmo operates primarily in the United States, with a minor presence in Lithuania. The company has not reported any recent funding, indicating a self-sustaining operational model since its last seed funding round in late 2020.

8. EarthSense

• Website: earthsense.co.uk
• Ownership type: Private
• Headquarters: Leicester, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 100%
• Latest funding: Other (Debt), $841,000, March 2025
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: earthsense-aq

EarthSense is an environmental consulting firm based in Leicester, England, specializing in air quality monitoring and modeling solutions. Established in 2016, the company has developed innovative products such as the Zephyr air quality monitor and the MappAir modeling suite. These tools are designed to assist various sectors, including local authorities, schools, and construction, in managing air quality data effectively. EarthSense's expertise stems from its academic roots at the University of Leicester, which has contributed to its cutting-edge approach to air quality challenges. The company actively engages in projects that promote public health and environmental awareness, such as collaborating with city councils to reduce pollution and improve community health outcomes. Recently, EarthSense secured funding to support its growth and development in the air quality monitoring space.

9. Awair

• Website: getawair.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 61%, South Korea 39%
• Latest funding: Series B, $10.0M, May 2019
• Founded year: 2013
• Headcount: 11-50
• LinkedIn: bitfinder

Awair, based in San Francisco, California, specializes in air quality monitoring solutions. Founded in 2013, the company has developed a range of products, including the Awair Element and Awair Omni, designed to track key environmental factors that impact indoor air quality. Their offerings cater to a variety of customers, including homeowners, educational institutions, and businesses, all seeking to enhance the health and wellbeing of their indoor environments. Awair's technology not only provides real-time data but also offers actionable insights to help users improve air quality. The company has received $10 million in Series B funding, reflecting its growth potential and the increasing importance of air quality monitoring in today's health-conscious society.

10. Aclima, Inc.

• Website: aclima.io
• Ownership type: Private
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: aclima-inc-

Aclima, Inc., founded in 2010 and based in San Francisco, California, is an environmental technology company that specializes in air quality measurement and analysis. The firm has developed a sophisticated platform that combines a network of mobile and stationary sensors to measure air pollution and greenhouse gases with remarkable precision. Their flagship products, Aclima Pro and air.health, provide actionable insights for governments, businesses, and communities, enabling them to address air quality issues effectively. Aclima's technology allows for block-by-block resolution of pollution data, which is crucial for understanding and mitigating environmental impacts at a local level. The company has received accolades for its innovative approach and has been recognized for its contributions to environmental justice, making it a significant player in the air quality monitoring industry.

11. Kaiterra

• Website: kaiterra.com
• Ownership type: Venture Capital
• Headquarters: Crans-Montana, Valais, Switzerland
• Employee distribution: China 38%, India 24%, United States (USA) 15%, Other 24%
• Latest funding: Series A, October 2017
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: kaiterra

Kaiterra, established in 2014 and based in Crans-Montana, Switzerland, is a company dedicated to air quality monitoring and data analytics. They offer a range of products, including the Sensedge air quality monitors, which are designed to provide accurate and real-time measurements of indoor air quality. Kaiterra's solutions cater to various sectors, including workplaces, schools, and buildings aiming for certifications like WELL and LEED. Their web app enhances the functionality of their hardware by providing comprehensive analytics and reporting tools, enabling users to make informed decisions about air quality management. With a workforce distributed across multiple countries, including China, India, and the United States, Kaiterra is positioned to address global air quality challenges. Their focus on creating healthier environments through data-driven insights underscores their relevance in the air quality monitoring industry.

12. Scentroid (IDES Canada Inc.)

• Website: scentroid.com
• Ownership type: Private
• Headquarters: Whitchurch-Stouffville, Ontario, Canada
• Employee distribution: Canada 100%
• Founded year: 2007
• Headcount: 11-50
• LinkedIn: scentroid

Scentroid (IDES Canada Inc.), founded in 2007 and based in Whitchurch-Stouffville, Ontario, is an environmental monitoring company that specializes in air quality and odour management solutions. With a workforce of 11 to 50 employees, Scentroid has developed a robust portfolio of products, including chemical analyzers, olfactometers, and various sampling devices. Their offerings cater to a wide array of industries such as cannabis, construction, health, and more, demonstrating their capability to meet the specific needs of different sectors. Scentroid also provides consulting services, helping clients navigate environmental regulations and ensuring compliance. The company has established a global presence, shipping products to over 45 countries, and has garnered trust from notable clients, including government agencies and research institutions. Their innovative approach to air quality monitoring and commitment to delivering precise solutions underscore their role in the industry.

13. Dnota Medio Ambiente

• Website: dnota.com
• Ownership type: Private
• Headquarters: Tres Cantos, Madrid, Spain
• Employee distribution: Spain 100%
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: dnota

Dnota Medio Ambiente, founded in 2010 and based in Tres Cantos, Madrid, Spain, is a private environmental technology company that specializes in air quality monitoring solutions. With a workforce of approximately 78 employees, Dnota offers a wide array of products, including air quality analyzers, portable monitoring devices, and IoT solutions tailored for smart cities. The company provides consulting and calibration services, catering to municipalities, industries, and educational institutions. Their commitment to enhancing air quality management is evident in their innovative use of technology, such as the bettair IoT devices, which facilitate precise air quality mapping and monitoring. Dnota's involvement in significant projects, including air quality monitoring at major airports, underscores their active role in the industry and their dedication to promoting public health through improved air quality.

14. Oizom

• Website: oizom.com
• Ownership type: Venture Capital
• Headquarters: Ahmedabad, Gujarat, India
• Employee distribution: India 100%
• Latest funding: May 2022
• Founded year: 2015
• Headcount: 51-200
• LinkedIn: oizom-instruments

Oizom, based in Ahmedabad, Gujarat, India, is an environmental monitoring company that specializes in air quality solutions. Founded in 2015, Oizom has developed a range of products designed to monitor various environmental parameters, including air quality, odorous gases, and particulate matter. Their flagship products, such as Polludrone and Odosense, are tailored for applications in urban settings, industrial environments, and research institutions. Oizom's technology is notable for its patented e-Breathing technology, which enhances the accuracy of data collection even in challenging conditions. The company has successfully implemented over 2000 installations worldwide, serving clients that include city authorities and industrial sectors. Oizom's focus on real-time data analytics and compliance with environmental standards underscores its commitment to improving air quality monitoring practices.

15. Enviro Technology Services Ltd

• Website: et.co.uk
• Ownership type: Private
• Headquarters: Stroud, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 100%
• Founded year: 1983
• Headcount: 11-50
• LinkedIn: enviro-technology-services-plc

Enviro Technology Services Ltd, based in Stroud, England, is an environmental monitoring company that specializes in air quality and emissions monitoring solutions. Established in 1983, the company has developed a robust portfolio of products and services aimed at helping clients comply with environmental regulations. Their offerings include air quality monitoring systems, continuous emissions monitoring systems (CEMS), and scientific research instrumentation. They also provide essential services such as installation, commissioning, and training for air monitoring equipment. With a dedicated team of experts, Enviro Technology Services has supported local authorities, industrial sectors, and scientific research organizations in over 75 countries, showcasing their global reach and expertise. Their commitment to quality and customer satisfaction is reflected in positive testimonials from various clients, including local councils and research institutions. As part of the Cura Terrae group of environmental companies, they continue to innovate and adapt to the evolving needs of the air quality monitoring industry.

16. Bettair Cities

• Website: bettaircities.com
• Ownership type: Private
• Headquarters: L'Hospitalet De Llobregat, Catalonia, Spain
• Employee distribution: Spain 100%
• Latest funding: Other (Grant), September 2019
• Founded year: 2017
• Headcount: 11-50
• LinkedIn: bettair-cities

Bettair Cities, based in L'Hospitalet De Llobregat, Catalonia, Spain, is an environmental technology company that specializes in air quality monitoring solutions. Founded in 2017, Bettair develops advanced sensor devices and a comprehensive software platform that enables municipalities and organizations to effectively measure and analyze air pollution. Their innovative technology allows for the identification of pollution sources and the implementation of strategies aimed at improving environmental health. Bettair's offerings include the bettair® static nodes, which measure various air quality indicators such as NO2, CO, O3, and particulate matter, among others. The company has participated in several projects aimed at enhancing urban air quality, demonstrating its active involvement in the industry. Bettair's approach combines cutting-edge technology with a commitment to public health, making it a notable player in the air quality monitoring field.

17. Vortex

• Website: vortexiot.com
• Ownership type: Corporate
• Headquarters: Neath, Wales, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 84%, Brazil 10%, Nigeria 5%
• Latest funding: January 2022
• Founded year: 2017
• Headcount: 11-50
• LinkedIn: vortexiot

Vortex is an environmental technology company based in Neath, Wales, founded in 2017. The company focuses on air quality monitoring and urban management solutions, providing innovative products such as VTX Air and VTX City. These products are designed to help local authorities and industrial businesses monitor environmental conditions effectively. Vortex emphasizes real-time data and predictive analytics, enabling clients to meet regulatory compliance and enhance public health. The company has established partnerships, including a significant collaboration with the Smart Transport Hub to monitor air quality at a hyperlocal level. Vortex is also committed to sustainability, participating in initiatives like the United Nations’ Race to Zero campaign, which aims for net-zero carbon emissions by 2050. With a workforce of 11-50 employees, Vortex is actively contributing to the air quality monitoring industry.

18. Sensorbee

• Website: sensorbee.com
• Ownership type: Private
• Headquarters: Sweden
• Employee distribution: Sweden 89%, Philippines 11%
• Founded year: 2018
• Headcount: 11-50
• LinkedIn: sensorbee1

Sensorbee, founded in 2018 and based in Linköping, Sweden, is a private technology company focused on environmental monitoring solutions. With a team of 19 employees, Sensorbee develops a range of products including air quality monitors, weather stations, and data loggers. Their offerings are tailored for governments and businesses aiming to enhance air quality and adhere to environmental regulations. The company prides itself on providing customizable solutions, allowing clients to configure sensors to meet specific monitoring needs. Sensorbee also integrates cloud-based data management, enabling users to access and analyze environmental data efficiently. Their commitment to sustainability is evident in their solar-powered devices, which facilitate continuous monitoring without reliance on external power sources. Sensorbee's innovative approach positions them as a significant player in the air quality monitoring sector, contributing to healthier environments globally.

19. Envirotech Instruments

• Website: envirotechindia.com
• Ownership type: Private
• Headquarters: New Delhi, Delhi, India
• Employee distribution: India 100%
• Founded year: 1982
• Headcount: 201-500
• LinkedIn: envirotech-instruments

Envirotech Instruments Pvt. Ltd., based in New Delhi, India, is an environmental technology firm that specializes in air quality monitoring solutions. Established in 1982 by alumni of the Indian Institute of Technology (IIT), the company has developed a comprehensive range of instruments designed for ambient air monitoring, noise monitoring, and stack emission monitoring. Their products are utilized by pollution control boards, various industrial sectors, and research institutions, ensuring compliance with environmental regulations. Envirotech has built a robust customer base, serving over 2000 clients in India and extending its reach to neighboring countries in South Asia and the Middle East. The company is recognized for its commitment to indigenous technology development, which enhances its credibility and relevance in the air quality monitoring industry.

20. CityAir - air quality monitoring and forecast

• Website: cityair.global
• Ownership type: Private
• Headquarters: Wilmington, Delaware, United States (USA)
• Founded year: 2018
• Headcount: 51-200
• LinkedIn: cityair-tech

CityAir, established in 2018 and based in Wilmington, Delaware, is a private company focused on air quality monitoring and management. It offers a comprehensive suite of products and services, including software platforms and hardware devices tailored for both indoor and ambient air quality monitoring. The company serves a variety of clients, including municipalities, industrial sectors, and property managers, all of whom aim to enhance air quality and adhere to environmental regulations. CityAir's technology is designed to provide real-time insights and forecasts, enabling users to make informed decisions regarding air quality management. The company has expanded its reach internationally, with projects in the USA, India, Switzerland, the Netherlands, and Slovakia, and maintains partnerships with leading universities to advance its research in atmospheric physics and AI technology.

21. Argos Scientific, Inc.

• Website: argos-sci.com
• Ownership type: Private
• Headquarters: Camas, Washington, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2006
• Headcount: 11-50
• LinkedIn: argos-scientific-inc

Argos Scientific, Inc., based in Camas, Washington, is an environmental consulting firm founded in 2006. With a team of 11 to 50 employees, the company specializes in air quality monitoring and offers a variety of services tailored to meet the needs of government agencies, healthcare organizations, and industrial clients. Their offerings include real-time air monitoring, compliance audits, and the development of air monitoring programs. Argos has been involved in significant projects, such as deploying low-cost particulate sensors in Los Angeles and Portland to identify local pollution sources. They also focus on methane monitoring and have developed systems that provide real-time data critical for assessing health impacts in communities. Their expertise extends to participating in the development of EPA and CARB technical system audits, showcasing their commitment to maintaining high standards in air quality management.

22. Netronix, Inc.

• Website: netronix.io
• Ownership type: Private
• Headquarters: Philadelphia, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 69%, Germany 31%
• Founded year: 1977
• Headcount: 11-50
• LinkedIn: netronix-inc-

Netronix, Inc., based in Philadelphia, Pennsylvania, operates as Aethair, an environmental monitoring company established in 1977. With a workforce of 11-50 employees, the company focuses on advanced solutions for air quality and environmental data. Aethair's offerings include a range of monitoring devices and a robust data analytics platform, which serve various sectors such as industrial and commercial organizations. Their products, including the Aethair IAQ and Aethair PRO, provide real-time data access and analytics, enabling effective environmental management. Aethair's platform is recognized for its security and scalability, making it a trusted choice for clients needing reliable air quality monitoring solutions. The company has built a reputation for integrating third-party sensors, enhancing the flexibility and functionality of their monitoring systems.

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