Climate tech startups in Southeast Asia attracted US$166 million in disclosed equity funding in 2025, marking a year-on-year increase despite a challenging global fundraising environment, according to a report released by market intelligence platform Tracxn.
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The sector raised US$166 million last year, up 10 per cent from US$152 million in 2024, although still below the record US$288 million raised in 2023, the report found.
Across the region, climate tech startups raised about US$1.1 billion through 268 disclosed funding rounds over the past 8 years, largely backed by venture capital investors.
Singapore was the dominant climate tech hub in Southeast Asia, accounting for about US$872 million of the roughly US$1.1 billion in disclosed equity funding tracked by Tracxn from 2018 to 2 June 2026. Indonesia followed with US$162 million, while Vietnam attracted US$53 million over the same period.
Indonesia and Vietnam’s funding for climate tech startups driven largely by electric mobility companies. Indonesian electric vehicle (EV) maker ALVA raised US$50 million, while Vietnamese electric motorcycle manufacturer Dat Bike secured US$51 million.
Funding by stage. Year-to-date figures are considered up to 2 June, 2026. Image: Tracxn
Electric mobility companies were among the region’s best-funded individual startups. Singapore-based shared electric mobility operator Beam led the rankings with US$135 million in total funding, followed by smart-grid company Amperesand with US$93 million and e-scooter operator Neuron with US$81 million.
By sector, solid waste management technology attracted the most capital at US$105 million, followed by smart-grid technology at US$97 million. Energy efficiency, air pollution management and renewable energy technologies rounded out the top five sectors.
Several large fundraising rounds accounted for a substantial share of sector totals. Amperesand’s US$80 million Series A round represented the largest single investment in the dataset, while waste-management firms Blue Planet and Green Li-ion raised US$46 million and US$41 million respectively.
The concentration of funding in sectors such as waste management, smart-grid infrastructure, energy efficiency and renewable energy reflects areas that governments across Southeast Asia have prioritised as they seek to expand clean energy capacity, electrify transport and strengthen power systems.
Singapore’s SEEDS Capital, the venture capital arm of state-owned Enterprise Singapore, participated in 15 rounds, making it the most active investor. It was followed by Entrepreneur First with 13 investments and Wavemaker Impact with 10.
Despite the sector’s early-stage profile, the report identified signs of maturation. Southeast Asia’s climate tech ecosystem has recorded 20 acquisitions and 10 public listings to date, with acquisitions concentrated in Singapore and listings spread across Thailand, Malaysia, Indonesia and Singapore.
In 2026 so far, four funding rounds worth about US$17 million have been recorded, all at seed or early stage. They included a US$9 million Series A round by Bangkok-based EV firm SLEEK, a US$4 million seed round for Singapore’s agritech firm Polybee Systems, and a US$4 million Series B investment in Vietnam’s Dat Bike.
Bangkok accounted for just over half of climate tech funding recorded in the first half of 2026, driven largely by SLEEK’s fundraising round, the report said.
