Aclima is the leader in hyperlocal air quality and greenhouse gas measurement and analysis.

Aclima's next-generation platform helps governments, communities, and enterprise customers accelerate action to reduce emissions and protect public health.

Aclima was founded in 2007 by Davida Herzl and Reuben Herzl. The company is headquartered in San Francisco, California, with offices in Portland, Oregon and New York.

Aclima has pioneered an entirely new way to measure and analyze air pollution and greenhouse gases, block by block and around the world.

The Aclima hardware and software technology platform translates billions of scientific measurements from its network of stationary and roving sensors into environmental intelligence for governments, businesses, and communities.

Aclima is dedicated to catalyzing bold action to protect public health, reduce climate-changing emissions and advance equity. The company holds a broad patent portfolio for networked, indoor, wearable, and mobile air quality sensing technologies.

Aclima is currently mapping air quality in North America from New York to California, including all nine counties in the Bay Area and California environmental justice communities served by Assembly Bill 617. With partners, Aclima is also mapping cities in Europe, Latin America, Asia, and North Africa.


Aclima sensing technology has measured air pollution and greenhouse gases block by block in more than 150 cities in 14 countries.


Aclima is backed by Clearvision Ventures, Microsoft Climate Innovation Fund, Robert Bosch Venture Capital (RBVC), Plum Alley, Rethink Impact, Splunk Inc. and others. The company raised $40M in Series B round on Nov 19, 2020. This brings Aclima's total funding to $64M to date.


Aclima was recognized as a 2017 World Economic Forum Technology Pioneer, as well as being named one of the prestigious 2018 Global Cleantech 100 companies.



  • Year founded: 2007
  • Funding Info: $64M over 2 Rounds (Latest Funding Type: Series B)
  • Yearly Revenue: NA
  • Employee Size: 51-200
  • Business Valuation: NA
  • City/Town: San Francisco
  • State: California
  • Country: United States
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