Best Environment Companies in Sydney, Australia
The 94 best Environment companies in Sydney, Australia in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Bingo Industries.
Our analysis of 309 Environment companies
$75.8b in tracked funding; 79% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in Sydney
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Bingo Industries Waste collection and management company | $1.8B | 65 mo ago | Public | — | 2013 | Kentico CMSApple iCloud MailGoogle Maps+24 | — |
| 2 | Infigen Energy Renewable Energy Developers | $473M | 70 mo ago | Acquired | Ross Rolfe CEO & MD | 2003 | — | — |
| 3 | Silex Provider of laser based semiconductor materials | $123M | 34 mo ago | Public | Michael Goldsworthy Founder & CEO & MD | 1988 | Amazon ALBAmazon Web ServicesNetlify+11 | — |
| 4 | Tellus Holdings Infrastructure development company focused on products produced from waste resources, salt and clay | $11M | 114 mo ago | Series B | Duncan Merwe Founder | 2010 | — | — |
| 5 | Goldwind Australia Solar and wind farm developers | $7M | 70 mo ago | Funding Raised | — | 2009 | — | — |
| 6 | Sircel Focused on e-waste solutions and recycling | $5M | 23 mo ago | Series A | Anthony Karam CEO/MD | 2018 | WordPressMySQLPHP+32 | — |
| 7 | NRN Renewable energy infrastructure business that aims to create a greener future by providing greater access to… | $3M | 10 mo ago | Series A | — | 2019 | WordPressMySQLPHP+25 | — |
| 8 | Enaxiom Energy and water company offering products for decarbonisation and wastewater treatment | $2M | 2 mo ago | Seed | Bijan Rahimi Co-Founder & CEO | 2023 | — | — |
| 9 | Phoslock Offers algae management solution | $550K | 105 mo ago | Public | — | 1994 | — | — |
| 10 | Epho Provider of commercial solar PV installation and maintenance services | $497K | 78 mo ago | Acquired | Oliver Hartley CEO & MD | 2013 | — | — |
Top 12 Environment companies in Sydney
#1
Seed · Sydney, New South Wales · founded 2023$1.8Mraised▾
Energy and water company offering products for decarbonisation and wastewater treatment. It offer products for decarbonization and wastewater treatment, including concentrated solar power linear, boilers, water heaters, and more.
- Apr 2026Seed$1.8M
#2
Series A · Sydney, New South Wales · founded 2019 · 11 employees$3.4Mraised▾
NRN (National Renewable Network) is an Energy Infrastructure business in Australia that aims to create a greener and more sustainable future by providing greater access to renewable energy plans. They help Australians protect themselves from rising energy costs and lower emissions.
- Aug 2025Conventional Debt$32.6M
- Aug 2025Series A$11.2M
- Jun 2024Seed$1M
- Dec 2023Seed$2.4M
#3
Public · Sydney, New South Wales · founded 2013 · 268 employees$1.8Braised▾
Waste collection and management company
- Jan 2021Post IPO$1.8B
#4
Public · Sydney, New South Wales · founded 1988 · 38 employees$123.3Mraised▾
Provider of laser based semiconductor materials
- Aug 2023Grant (prize money)$3.3M
- Feb 2023Post IPO$120M
#5
Series A · Sydney, New South Wales · founded 2018 · 4 employees$5Mraised▾
Sircel is a green-technology company focused on eradicating e-waste through local collection, drop-off events, and recycling solutions for businesses, councils, schools, and communities.
- Jul 2024Series A$5M
#6
Acquired · Sydney, New South Wales · founded 2003 · 550 employees$473Mraised▾
Infigen Energy is a developer, owner and operator of renewable energy generation in Australia. The company owns six wind farms and a solar farm with a combined installed capacity of 557 MW operating in New South Wales, South Australia and Western Australia.
- Jul 2020Post IPO—
- Apr 2018Conventional Debt$473M
#7
Funding Raised · Sydney, New South Wales · founded 2009$7.2Mraised▾
Golwin Australia is a solar and wind farm developer. Offers investment, construction, and operation and maintenance services. Project portfolio includes Gullen Range wind farm with a capacity of 165.5MW in New South Wales, 19.5MW Mortons Lane wind farm in Western Victoria and a 20MW White Rock solar farm in New England Tablelands.
- Aug 2020Grant (prize money)$7.2M
#8
Series B · Sydney, New South Wales · founded 2010 · 41 employees$11.1Mraised▾
Infrastructure development company focused on products produced from waste resources, salt and clay
- Dec 2016Series B$11.1M
#9
Acquired · Sydney, New South Wales · founded 2013$497Kraised▾
Epho is a New South Wales-based commercial solar PV system installer and commissioner. Offers other multiple solutions like planning, designing, repairing and maintenance of the systems. Developed a 1MW rooftop solar system in Brendale, a 6MW power rooftop systems for Brisbane Airport, a 100kW solar power plant in Horsley Park etc.
- Dec 2019Grant (prize money)$497K
#10
Public · Sydney, New South Wales · founded 1994 · 40 employees$550Kraised▾
Phoslock (formerly knows as IMT Holdings) develops a tool 'Phoslock' (developed in Commonwealth Scientific and Industrial Research Organisation, Australia) which is used for the treatment of blue-green algae. It works by consuming the phosphate present in the water, thus decreasing the phosphate availability to algae and find application in naturally occurring water bodies, swimming pool and water reservoir.
- Sep 2017Post IPO$4.6M
- Sep 2008Unattributed$550K
#11
Seed · Sydney, New South Wales · founded 2013 · 7 employees—raised▾
Provider of solar& wind -as-a-service systems on a residential and commercial scale
- Aug 2023Conventional Debt—
- Aug 2023Seed—
#12
Series A · Sydney, New South Wales · founded 2013—raised▾
Provider of food and garden recycling services
- Jun 2022Series A—
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 in Sydney is moving
A read on the academic research around Environmental Monitoring in Sydney — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 52 papers.
UNSW Sydney, UTS, and Western Sydney University lead Sydney's air quality, heavy metals, and ecotoxicology research, with a cautiously optimistic tone (mean stance 0.32) skewing toward breakthroughs and advancements.
- UNSW Sydney16
- University of Technology Sydney15
- Western Sydney University10
- University of Sydney9
- The University of Sydney8
- Wireless sensor network2
- Environmental engineering2
- Scale (ratio)2
- Water quality2
- Pollutant2
- Biochemical engineering2
- Wireless sensor network2
- Reliability (semiconductor)2
- Environmental chemistry2
- Aquatic ecosystem2
- Drainage basin2
- Wireless sensor network2
- Instrumentation (computer programming)1
- Field (mathematics)1
- Environmental pollution1
Common questions
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.