A climate action ecosystem
We bring together climate tech innovators, investors, committed corporates, and government agencies to drive impactful climate action.
Connected, we co-innovate for climate action.
The Greenhouse Climate Tech Hub is 3,800 sq m of co-working space for climate tech companies in Sydney’s Salesforce Tower.
Greenhouse Challenge is an open innovation platform that helps organisations identify and adopt climate tech solutions.
Building a diverse and thriving ecosystem
People are at the heart of every community, and the diverse actors in our ecosystem create more value than the sum of their parts.
Through consultation we identified eight distinct groups that together create the climate action ecosystem, we then further broke these down further to a cascading view to show that everybody has a role to play.
You can join us by:
Collaborating with us on a project to further climate action
Attending and proposing events and initiatives
Working from the Greenhouse Climate Tech Hub

A bustling hub of climate technology
Join an epicentre of climate technology with some of Australia’s most promising climate tech companies.
In the heart of Sydney’s CBD
Make the rapidly evolving Circular Quay district your home, where innovation and culture meet to form a new way of working.

Offices, desks, meeting rooms and event spaces
Host your team, investors, and clients in your new home; a cutting-edge place of climate innovation.
Premium facilities at your fingertips
A hireable Tesla fleet, the city’s largest bike storage facility, the best end-of-trip facilities in Sydney, and much more.
See the Tech Hub for yourself
Visit our space and meet our team.
Experience the community our members have been building.
.png)

Solar ScaleUp Challenge
The Australian Renewable Energy Agency (ARENA) is sponsoring this global challenge to accelerate innovation in large-scale solar.
This challenge aims to:
- Ultra low-cost solar (ULCS): We aim to reduce the installed cost of solar to just AU 30 cents per watt by 2030, and achieve a levelised cost of electricity below AU $20 per megawatt hour.
- Significant scale: We aim to ramp up our annual installation rate in Australia from 5 gigawatts today to 50 gigawatts per year, so that we can increase Australia's capacity to 1 terawatt (1,000 gigawatts) by 2050.
Crowdsource your climate solutions
Greenhouse Challenge facilitates genuine collaboration between climate tech collaborators, investors, corporate partners, and government agencies to achieve substantive commercial and emissions reduction outcomes.
If you’d like to work with us to reduce emissions in an area, we’d love to hear from you. Click the button below and let’s start collaborating.
Scaling climate action with designed collaboration
With over 30 years of combined experience building companies, facilitating large-scale change, and merging innovators across industries, the Greenhouse team are your allies for accelerating climate action.
.jpg)
An innovative event space in the heart of Sydney



Our Sydney-based tech hub is home to several event, collaboration and meeting spaces.
From conferences and workshops to product launches and networking events, we have the perfect space for your next event.
Short heading goes here
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Subscribe to our newsletter
The latest Greenhouse news, upcoming events and initiatives, and how you can get involved - once a month, in your inbox.
Connect with us
We’re always interested to learn something new. Whether you’d like to join our Climate Tech Hub, work with our Greenhouse Challenge platform, or join our community, we’d love to hear from you.
Office - Greenhouse Climate Tech Hub
Sydney NSW 2000, Australia