Sustainability start-ups Krosslinker and Ayrton Energy secure S$1 m each

Grand Finale of the Livability Challenge 2025.

• The 2025 Grand Finale witnessed another record-breaking year, attracting more than 1,200 submissions from over 100 countries competing for the top prize in two tracks: Decarbonisation and Cool Earth. 

• Passive cooling using advanced aerogel technology and safe, cost-effective storage and transport to accelerate adoption of hydrogen as a clean fuel were the top winners at the Grand Finale. 

Singapore, 7 May: Krosslinker and Ayrton Energy have emerged as the top winners at The Liveability Challenge (TLC) 2025 Grand Finale for their innovative solutions to drive decarbonisation and tackle climate challenges. 

The two groundbreaking projects were the standouts among eight finalists, each securing a S$1 million grant in catalytic funding to help advance and scale their solutions sustainably. 

The winner of the Cool Earth track was Singapore-based deep-tech start-up Krosslinker, which develops passive cooling technologies in the form of aerogel materials capable of reducing surface temperatures by up to 10 degrees Celsius and ambient temperatures by up to 5 degrees Celsius. 

The winner of the Decarbonisation track was Canada-based Ayrton Energy, which develops technology for safe and cost-effective hydrogen storage and transport, and addresses infrastructure challenges that currently hinder the widespread adoption of hydrogen energy. 

The two winners were selected after a competitive and rigorous judging session, where all eight finalists pitched their innovative solutions live to a judging panel at the Grand Finale, held at ParkRoyal Collection Marina Bay as part of Ecosperity Week. 

These pioneering climate solutions are integral in advancing progress towards the climate targets set under the Paris Agreement in 2015 – an urgent imperative as global temperatures reach dangerously new highs each year.  

With rising heat, extreme weather events and ecological deterioration afflicting society and natural ecosystems, solutions must be mobilised to address these climate impacts while contributing to the global targets of reducing emissions by 43 per cent by 2030 and achieving net zero by 2050. 

This will require coordinated efforts across society, enabling regulatory frameworks and strategic investments to enable the large-scale deployment of innovative climate technologies. 

Presented by Temasek Foundation and organised by Eco-Business, TLC was launched in 2018 as a platform to search for the most disruptive and innovative solutions that solve the pressing sustainability challenges of today. 

Today, TLC is Asia’s largest sustainability solutions platform and since its first edition, has attracted thousands of applications globally, shortlisted and incubated 53 finalists, and deployed more than S$12 million in funding to help these startups, who have gone on to raise hundreds of millions more.  

In its eighth edition, TLC searched for solutions across two tracks: Decarbonisation and Cool Earth. The Decarbonisation track seeks disruptive deep-tech solutions that provide scalable and impactful solutions to reduce carbon emissions across diverse industries. The Cool Earth track seeks groundbreaking innovations that specifically address the challenges posed by climate-induced extreme weather conditions. 

The eight shortlisted finalist teams – Ayrton Energy, CatAmmon, Cetogenix, CO2Tech, D-CRBN, Eztia Corp, Krosslinker and SXD, Inc – represent various countries including Singapore, Australia, Belgium and the United States. 

TLC’s strategic partners this year are Enterprise Singapore, OCTAVE Well-being Economy Fund, TRIREC and Valuence Ventures. Amazon Web Services was the Tech for Good partner for the event. 

“We are very happy and excited [to have secured this award], but this is just the beginning. We have a very big job to do to make sure that we develop solutions that equitably reach everybody and not just the tech-savvy community. Many thanks to Temasek Foundation for all the inspiring work that you have been doing, and to all our investors who have specially flown in for this event. To all the fellow finalists who keep inspiring us – it's such amazing work to solve some of the most difficult challenges in this world and committing to a cause rather than building easy solutions,” said Dr Gayathri Natarajan, Co-founder and CEO of Krosslinker Private Limited.  

“We’re really excited to be able to have this funding support and cement our position in Singapore and Southeast Asia. I'm very grateful to Temasek Foundation for believing in the tech that we're building, and in our ability to decarbonise these hard-to-abate sectors. I wouldn't be here if it weren't for my fantastic team of nerds, as I like to call them back home, as well as the support that we have from our investors both locally and internationally,” said Dr Brandy Kinkead, Chief Technology Officer of Ayrton Energy Inc. 

“At Temasek Foundation, we believe in the urgency of supporting bold and deep-tech innovative solutions that can drive real progress in decarbonising our planet, and keeping our environment cool even with rising temperatures. Our catalytic funding reflects this important commitment – helping innovators move from promising innovations to operational prototypes with potential to scale. Beyond The Liveability Challenge, Temasek Foundation is growing our network of climate tech challenges across the region into China, Indonesia and Vietnam. By doing so, we aim to accelerate innovators’ paths to commercialisation and deliver real impact for both the people and the planet. Our heartiest congratulations to Krosslinker Private Limited and Ayrton Energy Inc on this exciting milestone,” said Heng Li Lang, Head of Climate and Liveability at Temasek Foundation.  

“TLC has become a fixture in the global sustainability innovation ecosystem, providing a vital catalytic platform for promising start-ups with cutting-edge climate tech solutions from all over the world. By driving innovation, entrepreneurship, ecosystem collaboration and access to finance, it helps groundbreaking ideas move beyond the prototype stage to deliver real-world impact. In a world dangerously close to irreversible planetary thresholds, accelerating these solutions is no longer optional – it is critical,” said Jessica Cheam, Founder and CEO of Eco-Business. 

In addition to the two S$1 million in grants (S$1 million for each winner), a total of S$400,000 in investment and grant opportunities were awarded to the finalists by TLC’s strategic partners [see Appendix A].  

The Grand Finale also hosted an Innovation Dialogue where speakers Mark Gainsborough, Chairman, Seatrium; Magdalene Loh, Director, Urban Systems and Solutions, Enterprise Singapore; and Dr Dazril Phua, Chief Operating Officer, Nandina REM, identified the solutions needed to advance climate tech solutions and innovation in Singapore and globally – including ecosystem building, policy and financial support and public private partnerships. 

Experts said that clear market signals and policy coherence were key to enabling climate technologies to scale. “Technology risk is (usually) the least of the problem. But is the market going to develop the way as expected and is there a supportive policy framework and regulation? Unfortunately, there are too many cases in the climate tech space where the market hasn't developed as we expected because of an ever-changing policy and regulation landscape,” Mark Gainsborough, Chairman of Singapore-listed marine engineering company Seatrium, shared during the Innovation Dialogue.  

Magdalene Loh, Director, Urban Systems and Solutions, Enterprise Singapore, noted that in addition to scaleability and exportability, climate tech solutions must be effectively priced to attract customers, and designed for easy integration into existing systems or processes. 

“Today, many of the climate tech solutions that we're seeing do need to interact with existing infrastructure – existing systems that clients would already be used to. How would these tech solutions integrate? Many times, you need the buy-in internally within the organisation, not just with the innovation team. There are different facets of the clients to [consider] to secure buy-in as well,” Loh said.