Radar · Air Pollution Management Tech in San Francisco
Best Air Pollution Management Tech Companies in San Francisco, United States
The 49 best Air Pollution Management Tech companies in San Francisco, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Watershed.
By Rohit KhannaTrends & Stories
49companies tracked
$1Bdisclosed funding
1unicorns
34have raised
Ranked: Best Air Pollution Management Tech companies in San Francisco
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Watershed 🦄 Provider of platform for enterprise sustainability programs, measurement, reporting, and action 78Funding top 18%Growth top 24%Moat top 25%Product top 28% All 11 signals ▾Fundingtop 18% Growthtop 24% Moattop 25% Producttop 28% Talenttop 28% Techtop 34% Newstop 38% Markettop 39% Patentstop 46% Innovationtop 47% Globaltop 49% Funding: Raised $170M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Growth: Headcount 11 → 225 (+1945%) across vintages · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 78/100 | $170M | 7 mo ago | Series C | 225 | Christian Anderson Co-Founder | SanityTurbopackNode.js+25 | 31 patents Shear‑resistant geomembranes for civil/environmental containment and waterproof bag systems | — |
| 2 | Charm Industrial Operator of carbon removal technology converting biomass into bio-oil for sequestration | $108M | 34 mo ago | Series B | 92 92 → 104 (+13%) | Peter Reinhardt Co-Founder & CEO | SentryApple iCloud MailGoogle Workspace+19 | — | 3 job openings |
| 3 | Molekule Manufacturer of air purification and humidification devices with filtration technology 50Funding top 28%Innovation top 29%Patents top 29%Product top 34% All 13 signals ▾Fundingtop 28% Innovationtop 29% Patentstop 29% Producttop 34% Moattop 38% Techtop 41% Growthtop 45% Customerstop 50% Talentbottom 49% Marketbottom 44% Globalbottom 40% Newsbottom 36% Fin. healthbottom 29% Funding: Raised $97.9M across 6 rounds · 6 rounds over 10 yrs (0.6/yr) Innovation: 77 patents (top 23% of patent-holders) · 39 filings since 2022 vs 38 in 2017-21 rank vs industry peers · Fliar Intelligence Index 50/100 | $98M | 15 mo ago | Public | 92 92 → 81 (-12%) | Jason Dibona CEO | ShopifyApple iCloud MailMicrosoft 365+16 | 77 patents Indoor air purification and disinfection using photocatalytic, UV, and filtration technologies | — |
| 4 | Patch Provider of solutions to offset the carbon footprint | $80M | 46 mo ago | Series B | 40 | Brennan Spellacy Co-Founder & CEO | WebflowSalesforceGSAP+24 | 3 patents Patents concentrated in transport & manufacturing processes | — |
| 5 | Aclima Provider of air pollution and greenhouse gas measurement solutions | $77M | 22 mo ago | Series B | — | Davida Herzl Co-Founder & CEO | HubSpot CMS HubHubSpotcore-js+13 | 80 patents Real-time multi-sensor networks for localized methane detection and environmental mapping. | — |
| 6 | NCX Provider of solutions to offset the carbon footprint 69Moat top 21%Funding top 22%Patents top 24%Tech top 25% All 9 signals ▾Moattop 21% Fundingtop 22% Patentstop 24% Techtop 25% Innovationtop 29% Talenttop 38% Growthtop 45% Marketbottom 46% Globalbottom 42% Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents Funding: Raised $74.4M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) rank vs industry peers · Fliar Intelligence Index 69/100 | $74M | 15 mo ago | Series B | 50 | Zack Parisa Co-Founder & CEO | WordPress Block EditorWordPressMySQL+43 | 80 patents Field emission cathode devices for high‑performance X‑ray and electron beam sources | — |
| 7 | Aclima Provider of connected sensor networks for environment awareness 53Moat top 21%Innovation top 22%Patents top 22%Funding top 30% All 10 signals ▾Moattop 21% Innovationtop 22% Patentstop 22% Fundingtop 30% Talenttop 39% Marketbottom 43% Globalbottom 43% Techbottom 38% Growthbottom 30% Newsbottom 18% Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents Innovation: 80 patents (top 23% of patent-holders) · 44 filings since 2022 vs 22 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $64M | 22 mo ago | Series B | 51 | Davida Herzl Co-Founder & CEO | — | 80 patents Real-time hyper-local atmospheric pollutant sensing, methane detection, and multi‑sensor data analytics | — |
| 8 | Lithos Carbon Provider of carbon dioxide removal through enhanced rock weathering on farms | $63M | 32 mo ago | Series A | 1 | Mary Yap Co-Founder & CEO | — | — | 1 partnership |
| 9 | Heirloom Provider of direct air capture technology for permanent carbon dioxide removal 40Funding top 26%Talent top 28%Moat top 39%Market bottom 45% All 8 signals ▾Fundingtop 26% Talenttop 28% Moattop 39% Marketbottom 45% Growthbottom 40% Globalbottom 39% Techbottom 37% Newsbottom 19% Funding: Raised $53.0M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $53M | 8 mo ago | Series B | 54 | Noah Mcqueen Co-Founder | Webflow EcommerceWebflowLenis+10 | — | — |
| 10 | ClimateAI Developer of an AI platform providing climate risk management solutions | $38M | 39 mo ago | Series B | 27 27 → 43 (+59%) | Max Evans Co-Founder & COO | WordPress Block EditorElementorWordPress+27 | 22 patents AI-powered high-resolution weather and climate forecasting using deep generative neural networks | — |
| 11 | Living Carbon Provider of biotechnology based carbon storage solutions 53Partners top 18%Funding top 23%Growth top 25%News top 28% All 9 signals ▾Partnerstop 18% Fundingtop 23% Growthtop 25% Newstop 28% Moattop 39% Talentbottom 49% Techbottom 42% Marketbottom 40% Globalbottom 39% Partners: 5 contract events in 12 mo · Named contractor/client in 5 deals Funding: Raised $36.0M across 5 rounds · 5 rounds over 4 yrs (1.2/yr) rank vs industry peers · Fliar Intelligence Index 53/100 | $36M | 3 mo ago | Series A | 25 25 → 38 (+52%) | Maddie Hall Co-Founder & CEO | WebflowTypekitGoogle Font API+12 | — | — |
| 12 | SINAI Online platform that provides decarbonization solutions for companies, enabling them to go beyond carbon… | $36M | 28 mo ago | Series A | 55 | Maria Fujihara Co-Founder & CEO | Webflow EcommerceWebflowcore-js+19 | — | — |
| 13 | Vaulted Deep Provider of permanent carbon removal solutions using deep underground waste injection | $32M | 22 mo ago | Series A | — | Julia Reichelstein Co-Founder & CEO | WordPress Block EditorCart FunctionalityWordPress+20 | — | 1 job opening · 1 award |
| 14 | Noya Developer of an energy-efficient direct air capture system for carbon removal | $22M | 41 mo ago | Series A | 35 | Josh Santos Co-Founder & CEO | WebflowApple iCloud MailGoogle Workspace+12 | 31 patents Carbon dioxide capture and removal technologies for fluid streams | — |
| 15 | Rubi Manufacturer of biobased textiles made from captured carbon emissions 32Funding top 28%Partners top 32%Moat top 35%Talent top 38% All 7 signals ▾Fundingtop 28% Partnerstop 32% Moattop 35% Talenttop 38% Newsbottom 48% Globalbottom 39% Marketbottom 31% Funding: Raised $18.6M across 6 rounds · 6 rounds over 4 yrs (1.5/yr) Partners: 2 partnership announcements in 12 mo (2 in 24 mo) rank vs industry peers · Fliar Intelligence Index 32/100 | $19M | 8 mo ago | Series A | 12 12 → 28 (+133%) | Neeka Mashouf Co-Founder & CEO | — | — | — |
| 16 | Evergrow Carbon offtake company | $14M | 39 mo ago | Seed | 7 | — | WebflowApple iCloud MailGoogle Workspace+18 | — | — |
| 17 | Terrapass Carbon offset and renewable energy certificates provider | $6M | 229 mo ago | Series A | 5 | — | Cart FunctionalityWooCommerceWordPress+32 | — | — |
| 18 | Ecosapiens NFT project enabling consumers to make a positive impact on the climate | $5M | 40 mo ago | Seed | 7 | Garret Dafferner Co-Founder & CCO | PlasmicSentryTypeScript+25 | — | — |
| 19 | Everest Carbon Provider of carbon removal solution | $3M | 20 mo ago | Seed | — | Pascal Michel Co-Founder & CEO | WebflowGSAPcore-js+12 | — | — |
| 20 | Trelys Production of bio animal feed ingredient using methanogen bioconversion | $3M | 111 mo ago | Deadpooled | 3 | Jay Kouba Founder & CEO | — | 23 patents Microbial fermentation processes for producing methionine and other amino acids using hydrogenotrophic microbes. | — |
| 21 | Planette Online platform offering solutions for weather forecasting | $2M | 29 mo ago | Seed | — | Kalai Ramea Co-Founder and CTO | Wix eCommerceWixSentry+25 | — | — |
| 22 | CNaught Provider of carbon offset API management platform | $2M | 15 mo ago | Seed | 4 | Steven Siger Cofounder and COO/CLO | WebflowVimeoVercel+17 | — | 1 launch |
| 23 | Atmo Offering AI based weather forecasting solutions | $2M | 19 mo ago | Series A | 10 | Johan Mathe Co-Founder & CTO | WebflowGSAPAmazon Web Services+12 | — | — |
| 24 | C.Scale Developer of a platform for building decarbonization and carbon emission prediction | $2M | 9 mo ago | Seed | — | Jack Rusk Co-Founder & CEO | — | 30 patents AI-driven data annotation, sampling, and preprocessing for computer vision and document analysis | 1 launch |
| 25 | Aerial Online platform to calculate and offset the carbon footprint | $2M | 63 mo ago | Seed | 9 | Ebby Amir Co-Founder & CTO | — | 4 patents Patents concentrated in health & consumer products | — |
| 26 | Woosh Air Internet first brand offering smart air filter products | $1M | 51 mo ago | Seed | 7 | — | Shogun Page BuilderCart FunctionalityShopify+28 | — | — |
| 27 | Anthrogen Developer of molecular machines for human health, frontier manufacturing, society | $500K | 25 mo ago | Seed | — | Connor Lee Co-Founder & CTO | Framer SitesReactPriority Hints+4 | — | — |
| 28 | Precip Provider of precision rainfall tracking and monitoring solutions | $500K | 25 mo ago | Seed | — | Sam Lolla Co-Founder | AstroPostHogLinkedin Insight Tag+11 | — | — |
| 29 | Reefgen Manufacturer of underwater vehicles for marine habitat restoration | $225K | 74 mo ago | Funding Raised | — | Tom Chi Founder | WebflowjQueryHSTS+8 | 5 patents Underwater substrate attachment systems for marine seed planting and flora/fauna anchoring | — |
| 30 | Arcturus Technologies Provider of a platform offering climate and weather data analytics solutions | $150K | 58 mo ago | Seed | 8 | Jonathan Mccullagh CEO & Founder | — | 2 patents Synthetic mRNA cap chemistry and modular AI/logic knowledge representation systems | — |
| 31 | Wren Offering solutions to offset the carbon footprint | $150K | 84 mo ago | Seed | 13 | — | SentryNode.jsErlang+20 | — | — |
| 32 | Canopi Offering solutions to reduce carbon emission for startups | $125K | 61 mo ago | Deadpooled | 2 | Taishi Nojima Co-Founder | — | — | — |
Top 12 Air Pollution Management Tech companies in San Francisco
#1
Series C · San Francisco, California · founded 2019 · 225 employees$170.5Mraised▾
Series C · San Francisco, California · founded 2019 · 225 employees
Provider of platform for enterprise sustainability programs, measurement, reporting, and action. The platform offers tools for carbon accounting, emissions reduction, and sustainability disclosure preparation. It facilitates target setting and progress tracking toward decarbonization. The platform supports audit-grade data and methodologies vetted by third-party auditors.
Fliar Intelligence Index™ 78how this company ranks against its industry peers
Funding
top 18%Growth
top 24%Moat
top 25%Product
top 28%Talent
top 28%Tech
top 34%Funding: Raised $170M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) · Last round Series C (Dec 2025)
Growth: Headcount 11 → 225 (+1945%) across vintages · Fresh capital in last 24 mo
Moat: Editorial + unicorn rating 9/10 · IP moat: 31 patents · Unicorn
Audience (LinkedIn): 76k LinkedIn followers — 20.2% of this cohort's audience
Funding rounds
- Dec 2025Series C$14.5M
- Jun 2025Grant (prize money)$55K
- Feb 2024Series C$100.5M
- Feb 2022Series B$70M
Founders & team
Investors
Sequoia Capital, Kleiner Perkins, Lowercarbon Capital, Greenoaks, Emerson Collective, Galvanize Climate Solutions
Tech stack
6SenseCloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Tag Manager
#2
Series A · San Francisco, California · founded 2019 · 25 employees$36Mraised▾
Series A · San Francisco, California · founded 2019 · 25 employees
Provider of biotechnology based carbon storage solutions. It uses biochemistry to enhance a tree natural ability to draw down atmospheric carbon.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Partners
top 18%Funding
top 23%Growth
top 25%News
top 28%Moat
top 39%Talent
bottom 49%Partners: 5 contract events in 12 mo · Named contractor/client in 5 deals
Funding: Raised $36.0M across 5 rounds · 5 rounds over 4 yrs (1.2/yr) · Last round Series A (Apr 2026)
Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo
Audience (LinkedIn): 17k LinkedIn followers — 4.5% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Apr 2026Series A$13M
- Jan 2023Series A$21M
- Feb 2022Grant (prize money)$500K
- Feb 2022Series A$15M
Founders & team
Investors
Temasek, Lowercarbon Capital, Toyota Ventures, Felicis Ventures, Day One Ventures, Goat Capital
Tech stack
CloudflareGoogle AnalyticsGoogle Font ApiGoogle Hosted LibrariesGoogle Tag ManagerGoogle Workspace
#3
Series B · San Francisco, California · founded 2020 · 54 employees$53Mraised▾
Series B · San Francisco, California · founded 2020 · 54 employees
Provider of direct air capture technology for permanent carbon dioxide removal. The company accelerates natural carbon mineralization to capture carbon dioxide from the atmosphere. It integrates this mineralization approach into direct air capture facilities. The company’s facilities are powered by renewable energy and constructed with labor protections.
Fliar Intelligence Index™ 40how this company ranks against its industry peers
Funding
top 26%Talent
top 28%Moat
top 39%Market
bottom 45%Growth
bottom 40%Global
bottom 39%Funding: Raised $53.0M across 4 rounds · 4 rounds over 5 yrs (0.8/yr) · Last round Series B (Dec 2025)
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Moat: Editorial + unicorn rating 6/10 · 9 curated direct competitors tracked
Audience (LinkedIn): 36k LinkedIn followers — 9.5% of this cohort's audience
Activity (LinkedIn): 2 partnerships (incl. Chyoda Corporation) announced in 12 mo
Funding rounds
- Dec 2025Series B—
- Feb 2025Series B—
- Dec 2024Series B$150M
- Mar 2022Series A$53M
Founders & team
Investors
Lowercarbon Capital, Energy Ventures, Prelude Ventures, Ahren, Breakthrough Energy, Microsoft
Tech stack
CloudflareCore-JsGodaddyGoogle WorkspaceHstsHttp/3
#4
Public · San Francisco, California · founded 2014 · 92 employees$97.9Mraised▾
Public · San Francisco, California · founded 2014 · 92 employees
Manufacturer of air purification and humidification devices with filtration technology. The company offers air purifiers utilizing PECO technology alongside HEPA filtration. These devices aim to remove pollutants, allergens, and other particles from indoor air. The company also provides humidifiers designed to maintain comfortable humidity levels. Replacement filters for the air purification devices are available for purchase.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Funding
top 28%Innovation
top 29%Patents
top 29%Product
top 34%Moat
top 38%Tech
top 41%Funding: Raised $97.9M across 6 rounds · 6 rounds over 10 yrs (0.6/yr) · Last round Post IPO (May 2025)
Innovation: 77 patents (top 23% of patent-holders) · 39 filings since 2022 vs 38 in 2017-21 · 11 product lines
Patents: 77 patents matched (strict assignee match) · 39 filings since 2022 vs 38 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 11k LinkedIn followers — 2.8% of this cohort's audience
Funding rounds
- May 2025Post IPO$6.6M
- May 2023Post IPO$10M
- Sep 2021Angel—
- Aug 2020Angel—
Founders & team
Investors
Founders Circle Capital, Inventec, Crosslink Capital, Uncork Capital, TransLink Capital, Foundry
Tech stack
Animate.CssApple Icloud MailApple PayBootstrapCart FunctionalityCloudflare
#5
Series A · San Francisco, California · founded 2020 · 12 employees$18.6Mraised▾
Series A · San Francisco, California · founded 2020 · 12 employees
Manufacturer of biobased textiles made from captured carbon emissions. The company’s process removes carbon dioxide from the atmosphere. It creates textiles using virtually zero water and land. The textiles are the same material already used in apparel. The material biodegrades at the end of its life. The technology uses enzymes to convert carbon dioxide to cellulose.
Fliar Intelligence Index™ 32how this company ranks against its industry peers
Funding
top 28%Partners
top 32%Moat
top 35%Talent
top 38%News
bottom 48%Global
bottom 39%Funding: Raised $18.6M across 6 rounds · 6 rounds over 4 yrs (1.5/yr) · Last round Series A (Nov 2025)
Partners: 2 partnership announcements in 12 mo (2 in 24 mo)
Moat: Editorial + unicorn rating 7/10 · 3 curated direct competitors tracked
Audience (LinkedIn): 11k LinkedIn followers — 3.0% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Nov 2025Series A$7.5M
- Dec 2024Grant (prize money)$970K
- Nov 2023Seed$5.1M
- Mar 2023Seed$8.7M
Founders & team
Investors
Talis Capital, Tin Shed Ventures, Necessary Ventures, H&M Group Ventures, Collab Fund, America’s Seed Fund
#6
Series B · San Francisco, California · founded 2010 · 50 employees$74.4Mraised▾
Series B · San Francisco, California · founded 2010 · 50 employees
Provider of solutions to offset the carbon footprint. It provides a data-driven forest carbon marketplace. Its platform allows users to buy carbon credit to offset the carbon footprint.
Fliar Intelligence Index™ 69how this company ranks against its industry peers
Moat
top 21%Funding
top 22%Patents
top 24%Tech
top 25%Innovation
top 29%Talent
top 38%Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents · Soonicorn
Funding: Raised $74.4M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) · Last round Grant (prize money) (Apr 2025)
Patents: 80 patents matched (strict assignee match) · 80 filings since 2022 vs 0 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 10k LinkedIn followers — 2.6% of this cohort's audience
Funding rounds
- Apr 2025Grant (prize money)$349.3K
- Jan 2025Grant (prize money)$4M
- Mar 2022Series B$50M
- May 2021Series A$20M
Founders & team
Investors
Microsoft, Union Square Ventures, Version One Ventures, Gratitude Railroad, Alpha Edison, Scribble Ventures
Tech stack
Adobe Experience Platform LaunchAstroBrowser-Update.OrgCloudflareCloudflare Bot ManagementCore-Js
#7
Series B · San Francisco, California · founded 2010$77Mraised▾
Series B · San Francisco, California · founded 2010
Provider of air pollution and greenhouse gas measurement solutions. They use a network of sensors and data analytics to map and analyze air pollution and greenhouse gases at a hyperlocal level. Its platform combines sensing technology,cloud computing and artificial intelligence to provide real time insights on air quality and emissions.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 8k LinkedIn followers — 2.2% of this cohort's audience
Activity: 1 awards announced in 12 mo
Funding rounds
- Sep 2024Conventional Debt$13M
- Jun 2023Grant (prize money)—
- Nov 2020Series B$40M
- Jun 2018Series A$24M
Founders & team
Investors
Social Capital, The Schmidt Family Foundation, Radicle Impact Partners, Rethink Impact, Plum Alley Investments, Kapor Capital
Tech stack
CloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Font ApiHsts
#8
Series B · San Francisco, California · founded 2010 · 51 employees$64Mraised▾
Series B · San Francisco, California · founded 2010 · 51 employees
Operator of a purpose-driven technology company intended to catalyze bold climate action that protects public health reduces emissions, and delivers clean air for all. The company diagnoses the health of the air and tracks climate-changing pollution and is powered by its network of roving and stationary sensors, which measures air pollution and greenhouse gases at unprecedented scales and with block-level, hyperlocal resolution, and their professional analytics software, translates billions of scientific measurements into environmental intelligence for governments, companies, and communities, enabling governments, businesses, and communities to harness innovative environmental intelligence to raise awareness, manage climate-related risk and make smarter decisions in service of human and planetary health.
Fliar Intelligence Index™ 53how this company ranks against its industry peers
Moat
top 21%Innovation
top 22%Patents
top 22%Funding
top 30%Talent
top 39%Market
bottom 43%Moat: Editorial + unicorn rating 8/10 · IP moat: 80 patents · Soonicorn
Innovation: 80 patents (top 23% of patent-holders) · 44 filings since 2022 vs 22 in 2017-21
Patents: 80 patents matched (strict assignee match) · 44 filings since 2022 vs 22 in 2017-21 · Latest publication 2026
Founders & team
Investors
LEONID, Clearvison Ventures, Kapor Capital, Social Capital, Womens VC Fund II, KTB Network
Tech stack
Hubspot Cms HubHubspotLightboxJqueryGoogle AnalyticsCloudflare Bot Management
#9
Seed · San Francisco, California · founded 2024$2Mraised▾
Seed · San Francisco, California · founded 2024
Developer of a platform for building decarbonization and carbon emission prediction. The platform facilitates whole life carbon assessments across project portfolios. It allows users to define assemblies, highlight emitters, and access project-specific insights. The platform also streamlines reporting and allows for data exports to various formats.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 3k LinkedIn followers
Activity: 1 product launches announced in 12 mo
Funding rounds
- Nov 2025Seed$2M
Founders & team
Investors
Active Impact Investments, Wireframe Ventures
#10
Series A · San Francisco, California · founded 2023$32.3Mraised▾
Series A · San Francisco, California · founded 2023
Provider of permanent carbon removal solutions using deep underground waste injection. This involves the removal of organic waste, such as manure and sewage sludge, preventing atmospheric and environmental contamination. The waste is injected deep into the earth for permanent storage, leveraging technology adapted from the oil and gas industry. This process offers a dual benefit of waste management and carbon sequestration. The company collaborates with various partners, including waste operators and trucking companies, to facilitate waste collection and injection.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 7k LinkedIn followers
Hiring: 3 hiring posts in 12 mo (public) · momentum +3 · hiring: Location Manager, Local Manager
Activity: 1 awards announced in 12 mo
Funding rounds
- Sep 2024Series A$32.3M
- 2023Seed—
Founders & team
Investors
Climate Capital, Prelude Ventures, Lowercarbon Capital, Earthshot Ventures, Fall Line Capital, Rethink Impact
Tech stack
Cart FunctionalityCloudflareCloudflare Bot ManagementGodaddyGoogle AnalyticsHttp/3
#11
Seed · San Francisco, California · founded 2022 · 4 employees$2.2Mraised▾
Seed · San Francisco, California · founded 2022 · 4 employees
Provider of carbon offset API management platform. It offers solutions such as customizable flows, integrations, and more.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 3k LinkedIn followers
Activity: 1 product launches announced in 12 mo
Funding rounds
- May 2025Seed$4.5M
- Oct 2023Seed$2.2M
Founders & team
Investors
Greycroft, Carthona Capital, Long Run Capital, Bow Capital, FJ Labs, Silence
Tech stack
CdnjsCloudflareCloudflare Bot ManagementCookieyesFont AwesomeGoogle Analytics
#12
Series B · San Francisco, California · founded 2018 · 92 employees$108Mraised▾
Series B · San Francisco, California · founded 2018 · 92 employees
Operator of carbon removal technology converting biomass into bio-oil for sequestration. The company collects agricultural residue and uses pyrolyzers to convert it into bio-oil. This carbon-rich liquid is then transported to injection well sites. The bio-oil is pumped underground where it solidifies for permanent storage. The company also produces biochar for carbon removal.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 16k LinkedIn followers — 4.1% of this cohort's audience
Hiring: 3 hiring posts in 12 mo (public) · momentum +3 · hiring: Injection Engineering Manager, Sr. Manufacturing & Commissioning Engineer
Funding rounds
- Oct 2023Series B$8M
- Jun 2023Series B$100M
- 2021Seed—
Founders & team
Investors
Seek Ventures, Exor, General Catalyst, Lowercarbon Capital, Kinnevik, Thrive Capital
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementGatsbyGoogle AnalyticsGoogle Tag Manager
Funding & investor landscape
$1Btotal disclosed funding
33companies funded
76disclosed rounds
0rounds last 90 days
Most active investors
Y Combinator7 rounds
Notable founders
Christian Anderson
Co-Founder · Watershed
Taylor Francis
Co-Founder · Watershed
Maddie Hall
Co-Founder & CEO · Living Carbon
Noah Mcqueen
Co-Founder · Heirloom
Shashank Samala
Co-Founder & CEO · Heirloom
Jason Dibona
CEO · Molekule
Neeka Mashouf
Co-Founder & CEO · Rubi
Leila Mashouf
Co-Founder & CTO · Rubi
Zack Parisa
Co-Founder & CEO · NCX
Max Nova
Co-Founder & COO · NCX
Davida Herzl
Co-Founder & CEO · Aclima
Jack Rusk
Co-Founder & CEO · C.Scale
Prism market signals · United States · country-scoped Prism corpus, 19,235,917 docs
Market landscape — 10 sub-themes by coverage
Share of Air Pollution Management Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH SIGNALS · United States
How research on Air Quality is moving in the United States
A read on the academic research around Air Quality — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 8,692 United States-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and intensifying — the enthusiastic (strongly-positive) share moved 1% → 10% across 2008–2026.
top research entities
- Harvard University480
- Minnesota Project437
- University of California, Berkeley282
- Chockie Group International263
- Environmental Protection Agency255
leading researchers
DISTENDER · ETHNIKO KAI KAPODISTRIAKO PANEPISTIMIO ATHINON UOA · UNIVERSIDADE DE AVEIRO · UNIVERSITAT ZU KOLN · CLIMATE SOLUTIONS UNIPESSOAL LDA · Fitzgerald, Will · Gehrke, Gretchen · Joel Schwartz
▲
Breakthroughs665 · 8%
▲ 6%→8% share
▲1.3× share momentum1 median citations87% since 2021mostly methods-led
Breakthroughs are rising (6%→8% of field), led by Air pollution.
rising sub-themes (early→recent)
- Air pollution31→322
- Pollution18→144
- Particulates17→114
- Pollutant10→96
- Aerosol8→57
Newly emergingAtmosphere (unit) 0→25 · Carbon dioxide 0→20 · Hazardous waste 0→17
Landmark Transparent air filter for high-efficiency PM2.5 capture · 978 cites
◆
Advancements1,775 · 20%
▲ 17%→21% share
▲1.2× share momentum1 median citations86% since 2021mostly empirical
Advancements are rising (17%→21% of field), led by Air pollution.
rising sub-themes (early→recent)
- Air pollution89→900
- Pollution42→352
- Particulates44→300
- Pollutant30→218
- Environmental health28→179
Newly emergingAir monitoring 0→29 · Environmental monitoring 0→26 · Coronavirus disease 2019 (COVID-19) 0→25
Landmark Fine-Particulate Air Pollution and Life Expectancy in the United States · 2,277 cites
▼
Concerns2,375 · 27%
▼ 35%→26% share
▼0.7× share momentum3 median citations80% since 2021mostly empirical
Concerns are cooling (35%→26% of field), led by Air pollution.
rising sub-themes (early→recent)
- Air pollution214→1218
- Pollution62→474
- Environmental health114→444
- Particulates87→341
- Pollutant63→221
Newly emergingCoronavirus disease 2019 (COVID-19) 0→62 · Equity (law) 0→33 · Ethnic group 0→23
Landmark Global estimates of mortality associated with long-term exposure to outdoor fine particulate matter · 2,352 cites
RESEARCH HOTSPOTS · United States
Where air quality is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
Boston817 · +0.08
SF Bay Area522 · +0.07
New York490 · +0.07
Los Angeles348 · +0.09
Atlanta337 · +0.10
Seattle234 · +0.13
Pittsburgh172 · +0.15
San Diego128 · +0.14
Ann Arbor109 · -0.02
Philadelphia100 · +0.04
PATENT SIGNAL · United States
Who's filing air quality patents in the United States
United States air quality patent filing is accelerating — 1,763 filings from 1,198 assignees (2016–2025), led by FORD Global TECH, Honeywell INT, BASF; annual filings 141→156.
1,763 filings1,198 assigneespeak 209/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- FORD Global TECH231
- Honeywell INT124
- BASF109
- GM Global TECH Operations104
- Carrier98
- General Electric81
- Ingevity South Carolina68
- IBM67
Common questions
How many Air Pollution Management Tech companies are there in San Francisco, United States?
Radar tracks 49 indexable Air Pollution Management Tech companies headquartered in San Francisco, United States that meet our profile-completeness bar.
What is the total funding raised by Air Pollution Management Tech companies in San Francisco, United States?
The Air Pollution Management Tech companies in San Francisco, United States on this list have raised a combined $1B in disclosed equity funding across 33 funded companies.
Which is the highest-funded Air Pollution Management Tech company in San Francisco, United States?
Watershed is the highest-funded Air Pollution Management Tech company in San Francisco, United States, with $170.5M in disclosed equity funding.
How many Air Pollution Management Tech companies in San Francisco, United States are funded?
33 of the 49 Air Pollution Management Tech companies in San Francisco, United States on this list have disclosed at least one equity funding round.
How many Air Pollution Management Tech unicorns are there in San Francisco, United States?
1 Air Pollution Management Tech company in San Francisco, United States on this list is valued at $1B or more.
Who are the top investors in San Francisco, United States Air Pollution Management Tech companies?
The most active investors in San Francisco, United States Air Pollution Management Tech companies on this list include Climate Capital, Y Combinator, Lowercarbon Capital, MCJ, Microsoft.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.