Best Energy Efficiency Tech Companies in New South Wales, Australia
The 72 best Energy Efficiency Tech companies in New South Wales, Australia in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Willow.
Our analysis of 50 Energy Efficiency Tech companies
$7.8b in tracked funding; 86% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy Efficiency Tech companies in New South Wales
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Willow Provider of a SaaS and AI-driven digital twin platform for commercial spaces | $110M | 42 mo ago | Series A | Joshua Ridley Co-Founder | 2017 | WordPressApple iCloud MailMySQL+24 | 1 partnership · 1 award |
| 2 | CIMET Provider of white-label platform for customer experience management | $27M | 51 mo ago | Series B | Ankit Jain Founder & CEO | 2016 | Apple iCloud MailMicrosoft 365Node.js+14 | — |
| 3 | CIM SaaS & AI-driven building analytics platform for commercial properties | $10M | 45 mo ago | Series A | David Walsh Founder & CEO | 2015 | WebflowGSAPMicrosoft Clarity+21 | 2 launchs · 1 partnership |
| 4 | Switch Automation Provider of IoT and SaaS-driven building energy management solutions | $9M | 74 mo ago | Series A | Deb Noller Co-Founder & CEO | 2012 | — | — |
| 5 | Wattwatchers SaaS and IoT-based meter energy consumption monitoring devices | $9M | 56 mo ago | Series B | Gavin Dietz CEO & MD | 2007 | WordPressMySQLPHP+35 | — |
| 6 | Aeris Environmental HVAC Optimization systems with patented technology | $6M | 132 mo ago | Public | — | 2000 | Cart FunctionalityWooCommerceWordPress+30 | — |
| 7 | Gridsight Developer of an AI-driven electrical digital twin for distribution networks 40AI top 30%Talent top 38%Growth top 45%Funding top 49% All 7 signals ▾AItop 30% Talenttop 38% Growthtop 45% Fundingtop 49% Techbottom 42% Globalbottom 37% Marketbottom 26% AI: Classified as an AI company · Product described with: ai-driven Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $5M | 14 mo ago | Series A | Kurt Walkom Co-Founder & Chief Commercial Officer | 2020 | WebflowApple iCloud MailGoogle Workspace+13 | 1 partnership |
| 8 | Bluglass Manufacturer of custom GaN laser diodes and LEDs | $4M | 28 mo ago | Public | Jim Haden CEO | 2005 | WordPressMySQLPHP+8 | — |
| 9 | Lleaf Provider of light diffusers for indoor farms and greenhouses 6Funding bottom 46%Global bottom 38%Market bottom 20% All 3 signals ▾Fundingbottom 46% Globalbottom 38% Marketbottom 20% Funding: Raised $3.5M across 1 rounds · 1 rounds over 4 yrs (0.2/yr) Global: Investors from 3 countries beyond Australia rank vs industry peers · Fliar Intelligence Index 6/100 | $4M | 45 mo ago | Seed | — | 2016 | — | — |
| 10 | Objective Enterprise content management and data governance solution | $647K | 137 mo ago | Public | — | 1987 | Craft CMSSentryApple iCloud Mail+28 | — |
| 11 | BeforeYouBid SaaS-driven building inspection services | — | 71 mo ago | Series A | Rhys Rogers CEO | 2015 | — | 3 awards |
| 12 | Envizi Energy intelligence for utility customers, meter monitoring | — | 87 mo ago | Acquired | — | 2004 | — | 1 launch |
Top 12 Energy Efficiency Tech companies in New South Wales
#1
Series A · Wollongong, New South Wales · founded 2020 · 17 employees$4.5Mraised▾
Developer of an AI-driven electrical digital twin for distribution networks. It provides a foundational grid model and decision layer for modern networks. The company offers solutions for flexible interconnection and energization. It also provides automated screening of interconnection queues and dynamic day-ahead curtailment quantification.
- Apr 2025Series A$4.5M
- 2021Seed—
#2
Series A · Sydney, New South Wales · founded 2017 · 321 employees$109.7Mraised▾
Provider of a SaaS and AI-driven digital twin platform for commercial spaces. It offers services such as project designing, 3D model creation, digital engineering, maintenance manuals with sensor IoT data, creating smart building features, and more. The solution enables users to perform predictive maintenance, track maintenance requests, get access to energy consumption data, analyze it, and more. It also offers community management solutions such as booking common facilities, inventory management, sending notifications, tracking & responding to tenant requests, and emergency management, among others.
- Dec 2022Angel$28.8M
- Sep 2021Series A$43M
- 2019Series A$37.9M
#3
Public · Silverwater, New South Wales · founded 2005 · 8 employees$4.3Mraised▾
Manufacturer of custom GaN laser diodes and LEDs. It provides end-to-end design, fabrication, and packaging services. The company utilizes a proprietary low-temperature growth process for higher efficiency and performance. Its products serve the industrial, defense, display, and scientific markets. It offers both small-batch custom solutions and high-volume production capabilities.
- Feb 2024Post IPO$4.3M
#4
Series B · Sydney, New South Wales · founded 2016 · 80 employees$26.6Mraised▾
Provider of white-label platform for customer experience management. The platform provides a real-time dashboard for automated marketing, concierge assistance, and enables customizing websites. It also provides an end-to-end digital comparison platform using an automated system to reduce conversion times and offers personalized rewards and loyalty.
- Mar 2022Series B$26.6M
#5
Series A · Sydney, New South Wales · founded 2015 · 82 employees$9.7Mraised▾
SaaS & AI-driven building analytics platform for commercial properties. The platform provides users with machine learning and building intelligence technology for analyzing the performance of buildings. Solutions are provided for industries including commercial, retail, manufacturing, and more. Features include operation management, tenant management, portfolio management, asset management, energy management, maintenance management, and more.
- Sep 2022Series A$6.7M
- Mar 2017Series A$3M
#6
Series B · Sydney, New South Wales · founded 2007 · 24 employees$9.3Mraised▾
SaaS and IoT-based meter energy consumption monitoring devices. Enables real-time monitoring and control of electrical circuits over the internet. It can be used for residential, commercial and industrial, and utility applications.
- Sep 2021Series B$5.3M
- Dec 2019Grant (prize money)$2.7M
- Aug 2017Series A$2M
- Apr 2017Series A$2M
#7
Seed · Sydney, New South Wales · founded 2016 · 5 employees$3.5Mraised▾
Provider of light diffusers for indoor farms and greenhouses. It offers luminescent diffusers to deal with the issue of growth, yield, and crop control. Its products are designed to increase the photosynthesis activity of plants and crops. It is also used to stimulate phytochromes. It is mainly used for fruits, flowers, and aquatic plants.
- Sep 2022Seed$3.5M
#8
Series A · Sydney, New South Wales · founded 2012 · 62 employees$9.5Mraised▾
Provider of IoT and SaaS-driven building energy management solutions. It offers the integration of energy metering devices, HVAC, lighting, and other electrical and mechanical sub-systems in buildings to a cloud-hosted building management system for real-time monitoring and controlling. Its applications are in financial services, retail, grocery, and commercial real estate.
- Apr 2020Series A$5M
- Apr 2018Series A$3.2M
- Jan 2016Seed—
- Feb 2015Seed$1.2M
#9
Public · Rosebery, New South Wales · founded 2000 · 21 employees$6.4Mraised▾
HVAC Optimization systems with patented technology. Their AerisGuard anti-microbial multi-enzyme technology safely cleans and removes contamination from coils, surfaces, and ductwork the same time as providing protection from recontamination. AerisGuard - helps improve indoor air quality, enhance performance and reduce energy consumption.
- Jun 2015Post IPO$3.9M
- Aug 2009Post IPO$2.5M
#10
Public · Sydney, New South Wales · founded 1987 · 347 employees$647.2Kraised▾
Enterprise content management and data governance solution. The products offered are ECM to gather, archive, analyze documents, collaborate, secure sharing and produce legislative documents, review, assess, measure and manage complex plans, maps and images, electronic plan reviews for building compliance, policy building, facilitate project management, social collaboration tools, and more.
- Jan 2015Grant (prize money)$647.2K
#11
Series A · Sydney, New South Wales · founded 2015 · 26 employees—raised▾
SaaS-driven building inspection services. Provides solutions for inspectors, property managers, buyers, agents, and more. Offers solutions including building & pest inspection, pool inspection, contract review, and more.
- Jun 2020Series A—
#12
Acquired · Sydney, New South Wales · founded 2004 · 70 employees—raised▾
Envizi (fka Carbon Systems) provides a suite of hosted energy management systems. It consolidates interval meter data from utility meter providers and sub-metering systems to simplify and standardize monitoring of electricity, gas and water use at a granular level. It partners with utilities to offer their customer better insights about utility expense based on smart meter data.
- Mar 2019PE—
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy Efficiency Tech coverage by sub-theme.
Regulatory-risk over time flat
Funding & growth over time
funding flat · growth rising
How research on Energy Efficiency & Buildings is moving in Australia
A read on the academic research around Energy Efficiency & Buildings — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 541 Australia-affiliated papers.
- UNSW Sydney66
- University of Technology Sydney38
- University College London36
- Newcastle University36
- Deakin University32
- Energy management3→35
- Energy management system1→15
- Microgrid2→13
- Energy (signal processing)2→12
- Renewable energy1→10
- Energy management18→39
- Microgrid4→25
- Renewable energy4→25
- Passive cooling8→24
- Energy management system13→25
- Heat pump3→14
- Mechanical engineering1→4
- Electricity1→4
- Thermal1→4
Where energy efficiency is researched across Australia
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.
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.