Best Environment Companies in Los Angeles, United States
The 81 best Environment companies in Los Angeles, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: SolarReserve.
Our analysis of 90 Environment companies
$38.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in Los Angeles
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | SolarReserve Independent solar power producer | $937M | 107 mo ago | 59 | 2007 | — | — | 47 patents Solar thermal power generation using heliostat control and advanced thermal energy storage. | — |
| 2 | 8minute Provider of solar energy storage solutions 40Funding top 31%Market top 48%Growth bottom 42%Global bottom 37% All 5 signals ▾Fundingtop 31% Markettop 48% Growthbottom 42% Globalbottom 37% Newsbottom 27% Funding: Raised $400M across 5 rounds · 5 rounds over 6 yrs (0.8/yr) Market: 147 employees (top 37% of Energy) rank vs industry peers · Fliar Intelligence Index 40/100 | $400M | 53 mo ago | 147 147 → 236 (+61%) | 2009 | — | — | — | — |
| 3 | Sylmar Group Provider of industrial water treatment services 29Funding top 19%Talent top 38%News bottom 47%Global bottom 36% All 5 signals ▾Fundingtop 19% Talenttop 38% Newsbottom 47% Globalbottom 36% Marketbottom 18% Funding: Raised $130M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 29/100 | $130M | 3 mo ago | 6 | 2019 | Michael Warady Co-Founder | — | — | — |
| 4 | Radiant Nuclear 🦄 Developer of portable nuclear microreactors designed to replace diesel generators 55Funding top 26%Growth top 28%Moat top 37%Market bottom 49% All 8 signals ▾Fundingtop 26% Growthtop 28% Moattop 37% Marketbottom 49% Talentbottom 49% Techbottom 41% Globalbottom 32% Partnersbottom 32% Funding: Raised $55.0M across 7 rounds · 7 rounds over 6 yrs (1.2/yr) Growth: Web rank 10,000,000 → 5,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 55/100 | $55M | 6 mo ago | 34 | 2019 | Doug Bernauer Founder & CEO | Top 5M | — | — |
| 5 | Antares Industries Provider of micro-sized nuclear reactors for remote off-grid 22Funding top 22%Talent top 38%Moat top 50%Tech bottom 40% All 8 signals ▾Fundingtop 22% Talenttop 38% Moattop 50% Techbottom 40% Globalbottom 35% Innovationbottom 31% Patentsbottom 29% Marketbottom 27% Funding: Raised $38.1M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 22/100 | $38M | 6 mo ago | — | 2023 | Julia Dewahl Co-Founder | Top 10M | 2 patents Design and optimization of firearm flash hider muzzle devices | 1 partnership |
| 6 | OriginClear Provider of wastewater treatment services | $32M | 43 mo ago | 35 | 2007 | — | Top 10M | 11 patents Advanced water treatment technologies including algae biomass purification and organic contaminant removal | — |
| 7 | Cadiz Provider of waste-water treatment services | $27M | 75 mo ago | 21 21 → 15 (-29%) | 1983 | Susan K Chairman & Chief Executive Officer | Top 10M | — | — |
| 8 | Arensis Provider of waste to energy solutions | $17M | 94 mo ago | — | 2016 | Julien Uhlig Founder & CEO | — | — | — |
| 9 | Natural Ocean Well Provider of water management services 55Innovation top 20%Growth top 28%Patents top 28%Funding top 39% All 7 signals ▾Innovationtop 20% Growthtop 28% Patentstop 28% Fundingtop 39% Globalbottom 46% Techbottom 43% Marketbottom 15% Innovation: 56 patents (top 28% of patent-holders) · 47 filings since 2022 vs 9 in 2017-21 Growth: Web rank 50,000,000 → 10,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 55/100 | $16M | 19 mo ago | 8 | 2019 | — | Top 10M | 56 patents Underwater desalination systems integrating green hydrogen production and brine management | — |
| 10 | Mote Provider of wood waste recycling services 37Funding top 31%Patents top 31%Innovation top 35%Moat bottom 49% All 6 signals ▾Fundingtop 31% Patentstop 31% Innovationtop 35% Moatbottom 49% Globalbottom 40% Marketbottom 20% Funding: Raised $14.4M across 2 rounds · 2 rounds over 3 yrs (0.7/yr) Patents: 19 patents matched (strict assignee match) · 17 filings since 2022 vs 2 in 2017-21 rank vs industry peers · Fliar Intelligence Index 37/100 | $14M | 16 mo ago | 10 | 2017 | — | — | 19 patents Biomass gasification syngas production with heat integration and feedstock preparation | — |
| 11 | Dyrt Provider of food waste management services 9Funding top 42%Talent bottom 45%Tech bottom 35%Global bottom 33% All 5 signals ▾Fundingtop 42% Talentbottom 45% Techbottom 35% Globalbottom 33% Marketbottom 11% Funding: Raised $4.7M across 2 rounds · 2 rounds over 3 yrs (0.7/yr) Talent: 1 named leader on record rank vs industry peers · Fliar Intelligence Index 9/100 | $5M | 18 mo ago | 5 | 2020 | Lee Robinson Founder & CEO | Top 50M | — | — |
| 12 | T2M Global Provider of services to convert waste to energy 53Patents top 36%Innovation top 37%Funding bottom 48%Tech bottom 44% All 6 signals ▾Patentstop 36% Innovationtop 37% Fundingbottom 48% Techbottom 44% Productbottom 44% Globalbottom 37% Patents: 23 patents matched (strict assignee match) · 23 filings since 2022 vs 0 in 2017-21 Innovation: 23 patents (top 48% of patent-holders) · 23 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $4M | 13 mo ago | — | 2017 | — | — | 23 patents Cloud-based video gaming platforms and streaming infrastructure for interactive entertainment | — |
| 13 | Trinary Energy Provider of capital and development support for renewable energy projects 37Talent top 45%Funding bottom 48%Global bottom 25% All 3 signals ▾Talenttop 45% Fundingbottom 48% Globalbottom 25% Talent: 2 named leaders on record Funding: Raised $3.9M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 37/100 | $4M | 10 mo ago | — | 2020 | Jeremy Horton CEO | — | — | — |
| 14 | Active Membranes Developer of electro-active membrane technology for desalination and water treatment 27Talent top 38%Moat top 48%Funding bottom 46%Market bottom 40% All 5 signals ▾Talenttop 38% Moattop 48% Fundingbottom 46% Marketbottom 40% Globalbottom 36% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Moat: Editorial + unicorn rating 4/10 · 9 curated direct competitors tracked rank vs industry peers · Fliar Intelligence Index 27/100 | $2M | 12 mo ago | — | 2022 | Eric Hoek Co-Founder | — | — | — |
| 15 | Shift Energy Holdings Provider of municipal waste to biomass energy producing services | $1M | 145 mo ago | — | 2014 | Rodney Alves CEO | — | — | — |
| 16 | ClimateMinder Irrigation solutions provider for agriculture, golf, landscaping, and water management | $763K | 164 mo ago | — | 2005 | Bulut Ersavas Founder | — | 2 patents Integrated irrigation and climate control technologies for precision agriculture. | — |
| 17 | Better Earth Developer of solar energy projects | $405K | 21 mo ago | 295 | 2019 | Zain Jan Co-Founder & CEO | Top 10M | — | — |
| 18 | Retold Recycling Provider of clothing recycling services | $300K | 40 mo ago | 7 | 2018 | — | Top 5M | — | — |
| 19 | MAA'VA Operator of green building communities | $250K | 42 mo ago | 1 | 2020 | — | — | — | — |
| 20 | Greenbelt Resources Waste-to-energy solutions provider, converting waste into biofuels and valuable byproducts | $172K | 141 mo ago | 3 | 2001 | Darren Eng CEO & President | — | — | — |
Top 12 Environment companies in Los Angeles
#1
Funding Raised · Los Angeles, California · founded 2019 · 6 employees$130Mraised▾
Provider of industrial water treatment services
- Feb 2026Conventional Debt$130M
#2
Series D · Los Angeles, California · founded 2019 · 34 employees$55Mraised▾
Developer of portable nuclear microreactors designed to replace diesel generators. The company offers a compact reactor with equipment to generate electricity. The reactors leverage air cooling and high-speed turbomachinery. The units can provide thermal power for facility heating or water desalination. The fuel is designed to be meltdown-proof. The reactors are assembled, fueled, and tested in the factory. After fuel depletion, the entire container is shipped back for refueling.
- Dec 2025Series D$300M
- Feb 2025Series C$66M
- Oct 2024Series C$100M
- Apr 2023Series B$40.7M
#3
Series B · Los Angeles, California · founded 2023$38.1Mraised▾
Antares Industries is a company focused on providing abundant energy from Earth to the Asteroid Belt. They are building micro-sized nuclear reactors to power remote off-grid locations.
- Dec 2025Series B—
- Dec 2025Conventional Debt$25M
- Sep 2025Series B$71M
- Sep 2024Series A$30M
#4
Series A · Los Angeles, California · founded 2020$3.9Mraised▾
Provider of capital and development support for renewable energy projects. The company facilitates project execution by de-risking transactions and offering clear paths to closing. It offers professional support to contractors, developers, and businesses, increasing efficiency in all aspects of each transaction. The company provides access to early-stage capital, procurement lines, and engineering relationships.
- Aug 2025Series A$3.9M
- Aug 2025Conventional Debt—
#5
Series A · Los Angeles, California · founded 2017 · 10 employees$14.4Mraised▾
Provider of wood waste recycling services
- Feb 2025Series A$13.1M
- Aug 2023Grant (prize money)$1.2M
#6
Series A · Los Angeles, California · founded 2019 · 8 employees$16.5Mraised▾
Provider of water management services
- Nov 2024Series A$11M
- Dec 2022Seed$3.5M
- Jan 2021Seed$2M
#7
Funding Raised · Los Angeles, California · founded 2017$4.3Mraised▾
Provider of services to convert waste to energy
- May 2025Grant (prize money)$1.6M
- Jun 2021Grant (prize money)$2.5M
- Aug 2019Grant (prize money)$150K
#8
Seed · Los Angeles, California · founded 2022$2.3Mraised▾
Developer of electro-active membrane technology for desalination and water treatment. The technology addresses fouling and scaling challenges, simplifying process design with minimal pre-treatment needs. It enhances freshwater recovery while reducing capital and operating costs. The membranes are manufactured in standard spiral wound module sizes, fitting into existing pressure vessels and systems. Each pressure vessel can be energized independently, allowing flexible deployment.
- Jun 2025Seed$913.4K
- Jul 2024Seed$2.3M
#9
Series A · Los Angeles, California · founded 2020 · 5 employees$4.7Mraised▾
Developer of a food waste management platform designed to provide simplicity for large-scale producers of food waste while bringing compliance to an evolving regulatory environment. The company specializes in web dashboards to visualize and track the impact of composting, with metrics such as CO2e and water conserved, in-vessel composting systems and food waste management, thereby enabling large-scale producers to build the solution to manage food waste.
- Dec 2024Series A$4.7M
- Jun 2023Seed$20K
#10
Acquired · Los Angeles, California · founded 2009 · 147 employees$400Mraised▾
8minute is a provider of solar energy storage solutions. It offers hybrid (Solar energy+Storage) as well as standalone storage solutions. Has developed several solar projects in the US with power generation capacity ranging from 19MW to 329 MW.
- Jan 2022Conventional Debt—
- Jan 2022PE$400M
- Dec 2020Conventional Debt$125M
- Jun 2020Conventional Debt$225M
#11
Deadpooled · Los Angeles, California · founded 2007 · 59 employees$937.4Mraised▾
SolarReserve develops large scale solar projects and has commercialized a proprietary advanced solar thermal technology with integrated energy storage. The company has more than $1.8 billion of projects in construction and operation worldwide, with development and long-term power contracts for 482 megawatts (MW) of solar projects as of sept 2015.
- Jul 2017Grant (prize money)$2M
- Sep 2015Series C$19.4M
- Sep 2015Grant (prize money)$2.4M
- Nov 2012Series C$586M
#12
Public · Los Angeles, California · founded 2007 · 35 employees$31.9Mraised▾
Provider of wastewater treatment services
- Oct 2022Post IPO$25M
- Nov 2021Post IPO$150K
- Dec 2020Post IPO$325K
- Jun 2020Post IPO$105K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Environmental Monitoring is moving in the United States
A read on the academic research around Environmental Monitoring — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 3,039 United States-affiliated papers.
- United States Geological Survey157
- Cary Institute of Ecosystem Studies112
- Environmental Protection Agency84
- National Research Council79
- National Park Service76
- Software deployment2→31
- Pollution3→27
- Air quality index1→25
- Water quality10→34
- Air pollution3→25
- Air quality index14→60
- Air pollution8→51
- Pollutant4→32
- Sampling (signal processing)14→42
- Water quality23→48
- Human health1→32
- Pollution4→33
- Air quality index6→31
- Pollutant6→28
- Biodiversity1→22
Where environmental monitoring 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.
Who's filing environmental monitoring patents in the United States
United States environmental monitoring patent filing is accelerating — 450 filings from 343 assignees (2016–2025), led by LEEO, Valencell, United Parcel Service; annual filings 47→49.
- LEEO41
- Valencell25
- United Parcel Service21
- Honeywell INT20
- Apple18
- Venturedyne18
- Pillar TECH17
- IND Scient16