Company lists
The California edition · 2026

Sustainability techcompanies in California

Energy efficiency, green housing, renewable energy, environmental management, smart grid and more: the companies building sustainability tech in California, with their founders, funding, team size and business models.

2,130 company profiles460 with recorded fundingNovember 2026 edition
California · Photo: Wikimedia Commons (Public domain)

Recent sustainability tech business events in California

Funding, M&A, contract wins and launches involving 2,835 sustainability tech companies in California, last 24 months: 117 funding rounds · 110 M&A deals · 103 Contracts · 15 launches. Newest first; companies and investors link to their Fliar profiles. Latest event in our news feed: Jun 2026.

M&AAcquisition · Completed

Axon networks acquires Greenwave systems

Network orchestration and connectivity assurance vendor Axon Networks acquired software-defined mobile network solutions company Greenwave Systems.

Software-defined mobile network solutions
M&AMerger · Announced

Verse acquires Atlas

Atlas and Verse, both NiCE companies, merge under the Verse brand, combining two fully-managed AI solutions that work together synergistically.

AI-powered solutions for homebuilders
M&AAcquisition · Announced

Mubadala acquires Power factors

Mubadala Investment Company has taken a minority stake in Power Factors, the San Francisco-based software platform for renewable energy operators. Abu Dhabi's sovereign wealth fund is…

Renewable energy software platform
M&AMerger · Announced

Tomi environmental solutions acquires Carbonium

TOMI Environmental Solutions, Inc. today announced that it has executed a non-binding letter of intent (the “LOI”) to merge with Carbonium Core, Inc.

M&AAcquisition · Announced

Stem acquires Raicoon

Stem announced it has acquired software assets from raicoon, a solar fault-detection software provider, in a tech M&A deal.

Solar fault-detection software
ContractSupply

Caelux · client: Solx

The Solx-Caelux deal specifies 3 GW of hybrid modules over five years.

Solar Technology
LaunchWatershed agents

Watershed

Climate solutions provider Watershed announced the launch of Watershed agents, providing new AI tools to enable sustainability teams to significantly accelerate data cleaning and analysis.

AI tools
ContractTechnology

Aligos therapeutics · client: Xiamen Amoytop Biotech

Aligos Therapeutics has signed an exclusive licence agreement with Xiamen Amoytop Biotech for the development and commercialisation of pevifoscorvir sodium in Greater China for chronic…

Contract

Xiamen Amoytop Biotech · client: Aligos therapeutics

Aligos Therapeutics has signed an exclusive licence agreement with Xiamen Amoytop Biotech for the development and commercialisation of pevifoscorvir sodium in Greater China for chronic…

Pharmaceuticals
FundingEquity

Lindsey systems

B. Riley Securities, a full-service investment bank, served as exclusive financial advisor to Lindsey Systems in connection with a majority equity investment from First Reserve, a global…

Investors First reserve
Utilities and power infrastructure
M&AAcquisition · Announced

C.Scale acquires Building transparency

C.Scale, a building performance data platform, announced that it has acquired the Tally life cycle assessment tool from Building Transparency.

FundingGrowth Capital Loan

Turn therapeutics

Turn Therapeutics, Inc. (Nasdaq: TTRX), a clinical-stage dermatology company developing novel therapies for inflammatory skin diseases, today announced it has entered into a growth…

Investors Avenue Venture Opportunities Fund II, L.P.
Dermatology
M&AAcquisition · Completed

Aurelius acquires Landis+gyr

On 8 April 2026, Landis+Gyr Group AG, a publicly listed global energy technology company, announced the successful completion of the divestiture of its Europe, Middle East and Africa…

Energy Technology
ContractSupply

Infinium · client: Saba

Infinium's Project Atlas has been selected to supply sustainable aviation fuel (SAF) certificates under SABA's next-generation SAF procurement — a landmark effort designed to accelerate…

Aviation Fuel
ContractSupply

Lumos diagnostics · client: Micro-pak

Lumos Diagnostics Holdings Ltd (ASX: LDX) said it has signed a three-year contract manufacturing agreement with Micro-Pak and already received an initial purchase order worth US$250,000…

Diagnostics
Funding

Rubi

Rubi, the company pioneering the next era of manufacturing with technology that transforms carbon into essential materials, today announces a $7.5 million funding round and significant…

Investors Ap ventures, FH One Investments, Talis capital, Cmpc ventures
Carbon-based materials and enzyme technology manufacturing
M&AAcquisition · Completed

Aurelius acquires Landis+gyr

As a result of the transaction, AURELIUS has acquired Landis+Gyr's EMEA operations, encompassing the full metering portfolio for residential electricity, ICG electricity, gas, thermal…

Energy technology
ContractSupply

Living carbon · client: Mckinsey

Under the agreements, the companies have contracted 131,240 tons of carbon dioxide removal from Living Carbon over a 10-year period

Environmental Services
ContractTechnology

Clean energy technologies · client: Hoppy Power Ltd.

Key Takeaways Clean Energy Technologies executed a non-binding Letter of Intent with Hoppy Power Ltd. to evaluate deployment of CETY's proprietary High Temperature Ablative Pyrolysis…

Funding

Centivax

Centivax, Inc., a clinical-stage biotechnology company engineering vaccines and therapies for durable, universal protection against highly diverse targets, announced the closing of a $37…

Investors Structure fund, Meiji seika pharma, Sigmas Group, Kendall Capital Partners
Biotechnology
ContractTechnology

Pinnacle infotech · client: Etap

ETAP & IES: Strengthening intelligent power system analysis and performance-driven, energy-efficient design.

ContractTechnology

Etap · client: Pinnacle infotech

Pinnacle Infotech, a global leader in digital construction, today announced its expansion into end-to-end design and engineering services, alongside the signing of six Memorandums of…

Technology
ContractSupply

Neovolta · client: Luminia

In December 2025, NeoVolta and Luminia announced a strategic supply collaboration framework under which NeoVolta would receive a right of first refusal to supply battery energy storage…

Energy storage
FundingNon-recourse debt financing

Fervo energy

Fervo Energy, a global company of next-generation geothermal deployment, closed $421 million in non-recourse debt financing for the first phase of its flagship Cape Station development.

Geothermal energy
ContractSupply

Origin materials · client: HP Embalagens

Origin Materials has entered a distribution agreement with HP Embalagens to supply polyethylene terephthalate (PET) bottle caps made from recycled materials.

Packaging
ContractService

Matrix Bottling Group · client: Origin materials

Under that agreement, Matrix Bottling is responsible for bottling and capping services involving Origin’s PET caps.

Packaging
M&AAcquisition · Completed

Evertec acquires Dimension

Cade (General Superintendency of the Administrative Council for Economic Defence) has approved, without restrictions, the sale by Totvs and B3 of the Dimension - infrastructure company…

Sustainability tech companies in California, by funding and team

Few sustainability tech companies in California publish revenue, so this list compares what is on record instead: recorded equity funding, team size, revenue model, age and stage. The 50 companies below lead on recorded funding and team size among 2,130 active companies.

Showing 25 of 50

Provider of AI and app-based smart windows glasses for buildings

Construction tech
US$3.01bnSeries H · Dec 2018
410+21% 12 mo to Dec 2021LinkedIn · Oct 2026
Subscription
19 yr2007
0none in 3 months

Developer of next-generation geothermal projects delivering carbon-free energy

Renewable energy tech
US$1.12bnSeries E · Dec 2025
305-2% vs previous recordLinkedIn · Oct 2026
Fee-for-service
9 yr2017
0none in 3 months · last posted Mar 2026

Provider of solar panels, solar panel kits, and related components

Solar energy
US$845.32mSeries E · Jan 2018
137-1% vs previous recordLinkedIn · Oct 2026
Physical commerce
21 yr2005
0none in 3 months

Developer of onsite linear power generators

Renewable energy tech
US$739.40mSeries F · Apr 2025
518+41% 12 mo to Dec 2019LinkedIn · Jul 2026
Physical commerce
16 yr2010
0none in 3 months · last posted Dec 2025

Provider of fully-funded energy efficiency and sustainability solutions. It offers end-to-end services, including financing, expertise, and project management, to implement energy-saving and renewable upgrades across multiple sites. This allows clients to focus on their core business while achieving OPEX reduction and meeting ESG goals. Services encompass real-time data monitoring, enabling performance analysis and sustainability reporting, along with flexible financing options. The company's approach facilitates faster and larger-scale implementation of sustainability initiatives than clients

Energy efficiency tech
US$733.00mSeries E · Oct 2024
346LinkedIn · Jul 2026
Fee-for-service
11 yr2015
0none in 3 months · last posted May 2026

Offsets and renewable energy marketplace

Financial exchanges
US$712.17mSeries D · Jan 2023
269LinkedIn · Oct 2026
Commission on transaction / E-commerce - product
10 yr2016
0none in 3 months · last posted Jun 2026

Manufacturer of electrochromic glasses

Construction tech
US$563.90mSeries D · Oct 2023
35-10% 12 mo to Dec 2022LinkedIn · Oct 2026
E-commerce - product / Physical commerce
16 yr2010
0none in 3 months

Provider of software for solar and storage system design and sales

Renewable energy tech
US$537.40mSeries D · Feb 2022
300+27% 12 mo to Dec 2022LinkedIn · Oct 2026
Subscription
13 yr2013
0none in 3 months · last posted Jan 2026

Provider of smart energy management solutions

Energy efficiency tech
US$534.75mSeries D · Jun 2022
205+53% 12 mo to Dec 2020LinkedIn · Oct 2026
Physical commerce / Subscription
13 yr2013
0none in 3 months

Manufacturer of thin-film solar cells and panels

Renewable energy tech
US$520.00mSeries D · Jun 2012
89+0% vs previous recordrecorded
Physical commerce
24 yr2002
0none in 3 months

Developer of portable nuclear microreactors designed to replace diesel generators

Energy efficiency tech
US$517.96mSeries D · Dec 2025
587LinkedIn · Oct 2026
Physical commerce
7 yr2019
0none in 3 months

Developer of carbon transformation technology producing fuels and feedstock products

Air pollution management tech
US$472.37mSeries C · May 2025
267+164% 12 mo to Dec 2022LinkedIn · Jul 2026
Advertising / Commission on transaction
11 yr2015
0none in 3 months

Provider of smart panel for home energy management

Energy storage tech
US$418.81mSeries C · Jan 2026
407-35% vs previous recordLinkedIn · Oct 2026
Physical commerce / Subscription
12 yr2014
0none in 3 months · last posted Jun 2026

Developer of biologics to treat hepatitis B infection

Infectious diseases
US$415.00mSeries D · Mar 2021
84+66% 12 mo to Dec 2022LinkedIn · Oct 2026
Physical commerce
8 yr2018
0none in 3 months

Business energy price comparison website helping UK businesses save on energy bills

Life sciences platforms and tools
US$390.01mSeries D · Dec 2015
47-94% 12 mo to Dec 2022LinkedIn · Jul 2026
E-commerce - product / Physical commerce
20 yr2006
0none in 3 months

Provider of cell-free cancer liquid biopsy test

Genomics
US$388.62mSeries D · Jun 2024
851+114% 12 mo to Dec 2020LinkedIn · Oct 2026
E-commerce - product / Physical commerce
11 yr2015
0none in 3 months · last posted Jun 2026

Developer of thermal management solutions for data centers and electronic devices

Micro electro mechanical systems
US$333.00mSeries D · Mar 2026
91+79% vs previous recordLinkedIn · Jul 2026
Physical commerce
8 yr2018
0none in 3 months · last posted Feb 2026

Provider of diagnostics for identifying infectious diseases using microbial DNA

Healthcare it
US$315.00mSeries C · May 2024
212-9% 12 mo to Dec 2022LinkedIn · Jul 2026
Subscription
12 yr2014
0none in 3 months · last posted Jun 2026

Provider of magnet recycling solutions

Solid waste management tech
US$293.00mSeries C · Jan 2026
100-61% 12 mo to Dec 2021LinkedIn · Jul 2026
Physical commerce
5 yr2021
0none in 3 months

Developer of vaccines to treat infectious diseases

Infectious diseases
US$283.00mSeries D · Apr 2020
594+61% 12 mo to Dec 2023LinkedIn · Oct 2026
E-commerce - product / Physical commerce
13 yr2013
0none in 3 months · last posted Mar 2026

Provider of technology to enhance electric grid capacity and flexibility

Smart grid
US$279.74mPE · Jan 2025
102LinkedIn · Oct 2026
Physical commerce
16 yr2010
0none in 3 months · last posted Jun 2026

Provider of flexible thin-film photovoltaic cells

Photonics
US$272.87mSeries E · Oct 2012
34-4% 12 mo to Dec 2022LinkedIn · Jul 2026
Physical commerce
21 yr2005
0none in 3 months

Develops antibiotics against multidrug-resistant (MDR) superbug infections

Infectious diseases
US$272.36mSeries E · Dec 2020
23-20% 12 mo to Dec 2022LinkedIn · Oct 2026
Fee-for-service
19 yr2007
0none in 3 months

Residential solar financing provider

Crowdfunding
US$250.46mSeries C · Aug 2016
77+18% 12 mo to Dec 2021LinkedIn · Jul 2026
Lending
15 yr2011
0none in 3 months

Developer of affordable homes for senior living

Real estate & infrastructure developers
US$250.00mSeries D · Jul 2022
293+16% 12 mo to Dec 2021LinkedIn · Oct 2026
Fee-for-service
43 yr1983
0none in 3 months
50 of 2,130 companies shown here · the full list is on Radar
Fliar Radar

Explore all 2,130 sustainability tech companies in California on Radar

This page shows the top 50. Radar has the complete, filterable list with contacts and live company signals.

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  • Every company, not just 50All 2,130 sustainability tech companies in California, filterable by stage, funding, team size, revenue model and age.
  • Founders and decision-makersLeadership teams with roles and verified LinkedIn profiles, ready for outreach.
  • Live signalsFunding rounds, hiring, launches and M&A as they happen, with alerts on the companies you follow.
  • Save and exportBuild lists, compare companies side by side and export them from your Radar account.

Explore sustainability tech companies in California by what you are looking for

Find top sustainability tech companies in California for cleaner buildings, energy, water and environmental management. Explore sustainability technology companies and sustainable tech startups in California.

8 ways to explore sustainability tech in California

Energy efficiency and building management techGreen buildings and affordable housingRenewable energy and storage technologyAir, water and waste management technologySmart grid and connected energy techSustainability tech startups in California

Energy efficiency and building management tech

Technology for reducing building energy use and improving operations.

  1. Redaptive

    Provider of fully-funded energy efficiency and sustainability solutions. It offers end-to-end services, including financing, expertise, and project management, to implement energy-saving and renewable upgrades across multiple sites. This allows clients to focus on their core business while achieving OPEX reduction and meeting ESG goals. Services encompass real-time data monitoring, enabling performance analysis and sustainability reporting, along with flexible financing options. The company's approach facilitates faster and larger-scale implementation of sustainability initiatives than clients

    Energy efficiency tech
    See in list
  2. Turntide

    Provider of smart energy management solutions

    Energy efficiency tech
    See in list
  3. Span.IO

    Provider of smart panel for home energy management

    Energy storage tech
    See in list
  4. Stem

    Provider of AI and cloud-driven energy solutions

    Smart grid
    See in list
  5. Swell Energy

    Provider of home energy systems integrating solar, storage, and virtual power

    Property management tech

Green buildings and affordable housing

Companies developing sustainable buildings and housing solutions.

  1. BRIDGE

    Developer of affordable homes for senior living

    Real estate & infrastructure developers
    See in list
  2. Therma

    Provider of solutions for temperature and humidity monitoring

    Field force automation
  3. Aro Homes

    Provider of constructing carbon negative green building services

    Green buildings
  4. HomeBoost

    Online platform providing home energy assessment solutions

    Property management tech
  5. Haven Connect

    Provider of property management software solutions for affordable housing

    Affordable housing

Renewable energy and storage technology

Providers of solar, renewable power and energy storage technology.

  1. Solyndra

    Provider of solar panels, solar panel kits, and related components

    Solar energy
    See in list
  2. Xpansiv

    Offsets and renewable energy marketplace

    Financial exchanges
    See in list
  3. Aurora Solar

    Provider of software for solar and storage system design and sales

    Renewable energy tech
    See in list
  4. Nanosolar

    Manufacturer of thin-film solar cells and panels

    Renewable energy tech
    See in list
  5. Mosaic

    Residential solar financing provider

    Crowdfunding
    See in list

Air, water and waste management technology

Environmental technology for air quality, water systems and waste.

  1. Twelve

    Developer of carbon transformation technology producing fuels and feedstock products

    Air pollution management tech
    See in list
  2. Noveon

    Provider of magnet recycling solutions

    Solid waste management tech
    See in list
  3. Heirloom

    Provider of direct air capture technology for permanent carbon dioxide removal

    Air pollution management tech
    See in list
  4. Watershed

    Provider of platform for enterprise sustainability programs, measurement, reporting, and action

    Air pollution management tech
    See in list
  5. Charm Industrial

    Operator of carbon removal technology converting biomass into bio-oil for sequestration

    Air pollution management tech

Smart grid and connected energy tech

Digital infrastructure for grid, utility and energy monitoring.

  1. Smart Wires

    Provider of technology to enhance electric grid capacity and flexibility

    Smart grid
    See in list
  2. Everactive

    Developer of self-powered chips for wireless ambient Internet of Things devices

    Iot applications
    See in list
  3. AiDASH

    AI-powered platform for managing critical infrastructure assets

    Geographic information systems
    See in list
  4. Gridware

    Real-time grid intelligence platform for safer, more resilient power grids

    Smart grid
  5. OhmConnect

    Provider of energy management software solutions

    Energy efficiency tech

Sustainability tech startups in California

Recently founded sustainability tech companies in California.

  1. Noveon

    Provider of magnet recycling solutions

    Solid waste management tech
    See in list
  2. Equilibrium Energy

    Provider of software solutions for portfolio management

    Renewable energy tech
  3. GridCARE

    Provider of AI data center power solutions leveraging existing grid infrastructure

    Energy storage tech
  4. Lithos Carbon

    Provider of carbon dioxide removal through enhanced rock weathering on farms

    Air pollution management tech
  5. Quilt

    AI-based heat control systems for homes

    Smart homes
278 companies in California

Sustainability tech companies hiring in California

Sustainability tech employers with active hiring signals.

  1. Fervo Energy

    Developer of next-generation geothermal projects delivering carbon-free energy

    Renewable energy tech
    See in list
  2. Mainspring Energy

    Developer of onsite linear power generators

    Renewable energy tech
    See in list
  3. Redaptive

    Provider of fully-funded energy efficiency and sustainability solutions. It offers end-to-end services, including financing, expertise, and project management, to implement energy-saving and renewable upgrades across multiple sites. This allows clients to focus on their core business while achieving OPEX reduction and meeting ESG goals. Services encompass real-time data monitoring, enabling performance analysis and sustainability reporting, along with flexible financing options. The company's approach facilitates faster and larger-scale implementation of sustainability initiatives than clients

    Energy efficiency tech
    See in list
  4. Xpansiv

    Offsets and renewable energy marketplace

    Financial exchanges
    See in list
  5. Aurora Solar

    Provider of software for solar and storage system design and sales

    Renewable energy tech
    See in list
41 companies in California

Public sustainability tech companies in California

Publicly listed sustainability tech companies in California.

  1. View

    Provider of AI and app-based smart windows glasses for buildings

    Construction tech
    See in list
  2. Fervo Energy

    Developer of next-generation geothermal projects delivering carbon-free energy

    Renewable energy tech
    See in list
  3. Brii Biosciences

    Developer of biologics to treat hepatitis B infection

    Infectious diseases
    See in list
  4. BillionToOne

    Provider of cell-free cancer liquid biopsy test

    Genomics
    See in list
  5. Vaxcyte

    Developer of vaccines to treat infectious diseases

    Infectious diseases
    See in list
67 companies in California
Mobile reach

Top 10 sustainability tech apps from California

The most-installed Android apps published by sustainability tech companies headquartered in California — 10.3M installs between them. 129 companies on this page publish at least one app; each company (legal entity) appears once, with its most-installed app.

1 of 10
1

iNaturalist

by iNaturalist

Installs6.6M
Rating3.8112K ratings
Installs, year on year+23%
Last updatedMar 2026
iNaturalist screenshot 1iNaturalist screenshot 2iNaturalist screenshot 3iNaturalist screenshot 4iNaturalist screenshot 5
2

SwitchBot

by Switch Bot

Installs2.1M
Rating2.627K ratings
Last updatedMay 2026
SwitchBot screenshot 1SwitchBot screenshot 2SwitchBot screenshot 3SwitchBot screenshot 4SwitchBot screenshot 5SwitchBot screenshot 6
3

Tap Water Stations & Hydration

by Tap Projects

Installs403K
Rating2.96776 ratings
Installs, year on year+9%
Last updatedAug 2025
Tap Water Stations & Hydration screenshot 1Tap Water Stations & Hydration screenshot 2Tap Water Stations & Hydration screenshot 3Tap Water Stations & Hydration screenshot 4Tap Water Stations & Hydration screenshot 5Tap Water Stations & Hydration screenshot 6
4

Light DJ Entertainment Effects

by Mango Bee Software

Installs250K
Rating3.1418 ratings
Installs, year on year+11%
Last updatedApr 2026
Light DJ Entertainment Effects screenshot 1Light DJ Entertainment Effects screenshot 2Light DJ Entertainment Effects screenshot 3Light DJ Entertainment Effects screenshot 4Light DJ Entertainment Effects screenshot 5Light DJ Entertainment Effects screenshot 6
5

Jackery

by Jackery

Installs209K
Rating2.58410 ratings
Last updatedMay 2026
Jackery screenshot 1Jackery screenshot 2Jackery screenshot 3Jackery screenshot 4
6

HVAC Superheat Calculator

by SuperheatCalc

Installs188K
Rating4.16230 ratings
Installs, year on year+6%
Last updatedSep 2023
HVAC Superheat Calculator screenshot 1HVAC Superheat Calculator screenshot 2HVAC Superheat Calculator screenshot 3HVAC Superheat Calculator screenshot 4HVAC Superheat Calculator screenshot 5HVAC Superheat Calculator screenshot 6
7

Yardi Maintenance Mobile

by Yardi

Installs130K
Rating2.92313 ratings
Installs, year on year+13%
Last updatedDec 2024
Yardi Maintenance Mobile screenshot 1Yardi Maintenance Mobile screenshot 2Yardi Maintenance Mobile screenshot 3Yardi Maintenance Mobile screenshot 4Yardi Maintenance Mobile screenshot 5Yardi Maintenance Mobile screenshot 6
8

Litterati - The Global Team Cl

by Litterati

Installs129K
Rating3.46628 ratings
Installs, year on year+5%
Last updatedMay 2024
Litterati - The Global Team Cl screenshot 1Litterati - The Global Team Cl screenshot 2Litterati - The Global Team Cl screenshot 3Litterati - The Global Team Cl screenshot 4Litterati - The Global Team Cl screenshot 5Litterati - The Global Team Cl screenshot 6
9

Lighter for Philips Hue Lights

by A Better Home

Installs119K
Rating3.8691 ratings
Installs, year on year+8%
Last updatedNov 2025
Lighter for Philips Hue Lights screenshot 1Lighter for Philips Hue Lights screenshot 2Lighter for Philips Hue Lights screenshot 3Lighter for Philips Hue Lights screenshot 4Lighter for Philips Hue Lights screenshot 5Lighter for Philips Hue Lights screenshot 6
10

Mira Fertility & Cycle Tracker

by mira

Installs86K
Rating4.71805 ratings
Last updatedMay 2026
Mira Fertility & Cycle Tracker screenshot 1Mira Fertility & Cycle Tracker screenshot 2Mira Fertility & Cycle Tracker screenshot 3Mira Fertility & Cycle Tracker screenshot 4Mira Fertility & Cycle Tracker screenshot 5Mira Fertility & Cycle Tracker screenshot 6
RadarBrowse every sustainability tech company in California on RadarOpen the full list and use the App Downloads and App Growth filters to keep only companies with a mobile app. This rail shows only the ten most-installed.Browse on Radar
For investors and data teams

Put this intelligence into your own tools

The figures on this page come from Fliar’s company, funding, hiring and news data. Use it through the Investor Intelligence API and company data exports, or explore every company, founder and investor in Radar.

Capital & corporate activity

Sustainability tech funding and M&A across the United States

6,712 recorded equity rounds have gone to 14,526 sustainability tech companies in the United States — how much, at which stage, into which sub-sectors, from whom, and how California compares. Debt, IPO and grant rounds are excluded.

equity rounds, last 12 months117

US$3.99bn

equity rounds, last 24 months424

US$9.29bn

raised over five yearsUS$47.96bn

2,087 rounds in the United States

M&A deals, California110

last 24 months

Capital by year

Equity funding into sustainability tech in the United States

amount rounds
$6.4bn2018396
$3.1bn2019367
$5.3bn2020412
$11bn2021469
$11bn2022451
$9.9bn2023418
$7.6bn2024361
$5.6bn2025299
$3.0bn202689

Bars show US$ raised; the number under each year is equity rounds. 2026 is year to date. The peak year was 2021, with US$11.22bn across 469 rounds.

The funding ladder · five years

Rounds and typical cheque by stage

AngelUS$46.50m10 rounds · median US$6.00m
SeedUS$1.91bn859 rounds · median US$1.31m
Series AUS$8.18bn575 rounds · median US$9.09m
Series BUS$10.15bn335 rounds · median US$19.17m
Series CUS$10.16bn164 rounds · median US$40.00m
Series D+US$16.91bn133 rounds · median US$100.00m
Private equityUS$595.00m11 rounds · median US$65.00m
Where the money went · five years

Most-funded sub-sectors

Renewable energy techUS$8.94bn196 rounds · 99 companies
Solid waste management techUS$6.36bn180 rounds · 83 companies
Air pollution management techUS$5.87bn305 rounds · 172 companies
Infectious diseasesUS$4.00bn147 rounds · 96 companies
Energy efficiency techUS$3.66bn190 rounds · 97 companies
Smart gridUS$2.47bn121 rounds · 74 companies
Energy storage techUS$2.12bn41 rounds · 19 companies
Corporate activity · last 24 months

M&A in California

93Acquisition
12Merger
5Takeover

Most active acquirers

  1. Aurelius3
  2. Mirum pharmaceuticals3
  3. Nextracker3
  4. Na3
  5. Cepheid3

Most acquired or merged

  1. Dimension5
  2. Bluejay therapeutics4
  3. Cidara therapeutics4
  4. Monogram biosciences4
  5. Landis+gyr3

Each deal appears in the events strip at the top of the page.

Go deeper in the sustainability tech landscape reports:

Sustainability Tech Industry Landscape of the United States
Industry landscape report

Sustainability Tech Industry Landscape of the United States

The financials above are one chapter. The full sustainability tech landscape of California maps the whole industry — every segment, the capital behind it, the talent market and where the next opportunities are.

  • Market map of every sub-sector
  • Funding & company formation by year
  • Revenue, profit & financial strength
  • Digital footprint: traffic, apps, releases
  • Hiring, skills & pay
  • Founders & leaders
  • News & sentiment
  • Where demand runs ahead of supply
Read the sustainability tech landscape of California

Sustainability tech funding in California

460 sustainability tech companies in California have recorded equity funding, US$28.02bn in total. Totals and round dates describe the historical record; they are not current valuations.

Founders and momentum in California

Meet the people behind sustainability tech companies in California. 1,044 of 2,130 companies list founders or leaders; where a public LinkedIn profile matches exactly, the expanded profile shows the photo, headline, location and education.

Explore California sustainability tech companies by sub-sector

The most common specialisations among sustainability tech companies in California. Open a company to see what it sells, who runs it and how far it has come.

Keep exploring sustainability tech in the United States and nearby markets.

Company lists

Company listSustainability Tech Companies in Atlanta, United States77 companiesCompany listSustainability Tech Companies in Austin, United States129 companiesCompany listSustainability Tech Companies in Boston, United States169 companiesCompany listSustainability Tech Companies in Chicago, United States98 companiesCompany listSustainability Tech Companies in Dallas, United States65 companiesCompany listSustainability Tech Companies in Denver, United States73 companiesCompany listEnterprise Applications Companies in California, United States14,138 companiesCompany listConsumer Companies in California, United States8,884 companiesCompany listBusiness Services Companies in California, United States8,079 companiesCompany listHigh Tech Companies in California, United States7,564 companiesCompany listRetail Companies in California, United States6,276 companiesCompany listFinTech Companies in California, United States5,461 companiesCompany listMedia & Entertainment Companies in California, United States5,292 companiesCompany listEnterprise Infrastructure Companies in California, United States5,278 companies

Explore more lists: nearby cities and other sectors in California

444 more company lists you can search, plus the Radar directory pages for each place.

Sustainability tech in nearby cities

Sustainability tech in other US cities

Other sectors in California

Browse the Radar directory

Coming soon