Asia Climate Tech Startups 2026: 12 Hottest Bets Reshaping the Region Green Economy
Asia climate tech startups 2026 are no longer running pilots. They are building platforms. In 2025, the region raised $2.79 billion in early-stage climate tech funding, and in 2026 the deal sizes are larger, the founders more experienced, and the commercial traction more real. From cold storage in India to seawater electrolysis in Japan to graphene for industrial decarbonization across Asia-Pacific, here are the 12 hottest climate tech bets the region is making right now.
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Why Asia Climate Tech Startups 2026 Are Accelerating
Asia climate tech startups in 2026 are entering a more grounded phase. The region is no longer driven by broad decarbonization narratives and early experimentation. Investors are becoming more selective, and the focus has shifted to technologies that can move beyond pilots and deliver measurable outcomes at scale.
This shift is visible in the types of companies attracting early-stage funding. Several of the deals highlighted here are in hardware, infrastructure, and industrial systems, areas that typically require longer timelines and more complex deployment. The IEA World Energy Investment report confirms that Asia now leads global deployment in multiple clean energy categories.
India has emerged as a key proving ground. The combination of cost sensitivity and large demand makes it a practical environment for climate startups to refine technologies before taking them to other markets. “Startups are increasingly using India as their home ground to refine product formulations and bring costs down by achieving economies of scale,” says Bharti Singhla of Momentum Capital, one of the region’s most active climate-focused early stage funds.
12 Hottest Asia Climate Tech Startups 2026: At a Glance
The table below summarises the 12 standout Asia climate tech startups and funds in 2026, covering their country, sector, stage, and funding size.
| # | Company | Country | Sector | Stage | Funding |
|---|---|---|---|---|---|
| 1 | Tan90 Thermal | India | Cold Chain / PCM Storage | Series A | $2.3M |
| 2 | Alt Carbon | India | Carbon Removal (ERW) | Seed | $12M |
| 3 | pHydrogen | Japan | Green Hydrogen | Seed | $2.1M |
| 4 | Amperesand | Singapore | AI Data Center Power | Series A | $80M |
| 5 | Recove | India | Plastic Waste / Circular Economy | Pre-Seed | $630K |
| 6 | Gridware | US / Asia Expansion | Grid Monitoring | Series B | $55M |
| 7 | Promethean Energy | Asia-Pacific | Waste Heat Recovery | Seed | Undisclosed |
| 8 | Terracarb | Asia-Pacific | Graphene for Decarbonization | Strategic Round | Undisclosed |
| 9 | Thermistance | Asia-Pacific | Passive Cooling Systems | Pre-Seed | Undisclosed |
| 10 | PhaBuilder | Asia-Pacific | Bioplastics (PHA) | Strategic Partnerships | Undisclosed |
| 11 | responsAbility | Switzerland / Asia | Climate Investment Fund | Fund | $460M |
| 12 | 2150 | Europe / Asia | Urban Climate Infrastructure | Fund | EUR 210M |
1. Cold Chain and Cooling: The Underrated Asia Climate Tech Opportunity
Tan90 Thermal (India, $2.3M Series A)
Tan90 Thermal builds portable cold storage systems powered by phase-change materials (PCM), often called cold batteries. These systems store thermal energy and release it over time, enabling refrigeration without continuous electricity. This is critical in regions with unreliable power supply. By reducing dependence on diesel-powered refrigeration, Tan90 claims up to 50 percent emissions reduction in last-mile cooling. Backed by NABVENTURES and Blue Ashva, it is scaling deployments and expanding into Southeast Asian markets.
Thermistance (Asia-Pacific, Pre-Seed)
Thermistance builds energy-free cooling systems designed to reduce reliance on traditional refrigeration and air conditioning. With rising temperatures across South and Southeast Asia, cooling demand is set to surge. Thermistance’s passive cooling approach offers a low-energy alternative for urban environments where electricity access remains inconsistent.
2. Carbon Removal: Asia Climate Tech Enters the Credibility Era
Alt Carbon (India, $12M Seed)
Alt Carbon focuses on enhanced rock weathering (ERW), a carbon removal method that accelerates natural geological processes to permanently lock away CO2. The startup is running 10-kiloton-scale pilot deployments, placing it among the most advanced ERW players in Asia. Backed by Lachy Groom and Shastra VC, Alt Carbon is building a full-stack carbon removal company combining science, logistics, and carbon credit monetization.
3. Energy and Industrial Efficiency: The Highest-Return Bet in Asia Climate Tech 2026
pHydrogen (Japan, $2.1M Seed)
pHydrogen is developing seawater electrolysis technology to produce green hydrogen without relying on freshwater resources, a major constraint in conventional production. Supported by Incubate Fund, the company is moving from lab prototypes to field-scale validation, expanding hydrogen viability across water-stressed regions of Asia.
Amperesand (Singapore, $80M Series A)
Amperesand tackles energy inefficiency in AI data centers through advanced power conversion systems. Its $80M Series A is one of the largest hardware raises among Asia climate tech startups in 2026, reflecting investor conviction that efficiency-first infrastructure solutions are now as strategically critical as generation capacity itself.
Promethean Energy (Asia-Pacific, Seed)
Promethean Energy recovers low-grade waste heat from industrial processes and converts it into usable energy, delivering 20 to 30 percent efficiency improvements in manufacturing clusters across Asia-Pacific. The value proposition is immediate cost reduction, making adoption achievable without regulatory pressure.
Gridware (US with Asia Expansion, $55M Series B)
Gridware develops real-time grid monitoring systems that detect faults and prevent outages. Its expansion into India highlights growing demand for grid resilience as renewable energy integration increases system complexity. AsiaTechDaily climate tech coverage places grid monitoring among the fastest-growing investment categories in the region this year.
4. Circular Economy and Advanced Materials in Asia Climate Tech
Recove (India, $630K Pre-Seed)
Recove builds a B2B marketplace for plastic recyclables, connecting waste generators with recyclers through a technology-enabled platform. Backed by Momentum Capital, Recove targets coordination inefficiencies within the circular economy, scaling with existing infrastructure rather than requiring new material science breakthroughs.
Terracarb (Asia-Pacific, Strategic Round)
Terracarb is developing ultra-low-cost graphene production targeting industrial decarbonization in cement and steel. These two sectors account for roughly 15 percent of global CO2 emissions. If Terracarb’s cost breakthrough holds at scale, the downstream impact on construction-sector emissions across Asia will be substantial.
PhaBuilder (Asia-Pacific, Strategic Partnerships)
PhaBuilder scales PHA-based bioplastics, a biodegradable alternative to conventional plastics, through partnerships with global consumer brands. This signals a shift in circular economy startups from experimentation to mainstream supply chain integration.
The Capital Scaling With Asia Climate Tech Startups 2026
Beyond individual startups, institutional capital is flowing into Asia climate tech at scale. responsAbility has committed $460 million to an Asia-focused climate strategy. 2150 has deployed EUR 210 million into urban climate infrastructure, with Asia among its primary targets. Both funds are targeting deployment-ready assets where the primary risk is execution, not invention. This presence of patient, infrastructure-focused capital signals that the Asia climate tech ecosystem is now mature enough to absorb long-term investment.
Full List: Asia Climate Tech Startups 2026
- Tan90 Thermal (India) – PCM cold storage, $2.3M Series A
- Alt Carbon (India) – Enhanced rock weathering, $12M Seed
- pHydrogen (Japan) – Seawater electrolysis hydrogen, $2.1M Seed
- Amperesand (Singapore) – AI data center power efficiency, $80M Series A
- Recove (India) – Plastic recyclables marketplace, $630K Pre-Seed
- Gridware (US / Asia) – Grid monitoring, $55M Series B
- Promethean Energy (Asia-Pacific) – Waste heat recovery, Seed
- Terracarb (Asia-Pacific) – Low-cost graphene, Strategic Round
- Thermistance (Asia-Pacific) – Passive cooling systems, Pre-Seed
- PhaBuilder (Asia-Pacific) – PHA bioplastics, Strategic Partnerships
- responsAbility (Switzerland / Asia) – $460M Asia climate fund
- 2150 (Europe / Asia) – EUR 210M urban climate fund
Related: Asia startup funding rounds 2026 and Singapore top tech startups 2026.
Frequently Asked Questions About Asia Climate Tech Startups 2026
Which Asia climate tech startups raised the most money in 2026?
Amperesand (Singapore) raised the largest individual round at $80 million Series A. Gridware raised $55 million Series B. At the fund level, responsAbility committed $460 million to an Asia climate strategy and 2150 deployed EUR 210 million in urban climate infrastructure.
What sectors are hottest for Asia climate tech startups in 2026?
The hottest sectors are industrial efficiency and waste heat recovery, cold chain and passive cooling, carbon removal via enhanced rock weathering, bioplastics and circular economy platforms, and grid monitoring for renewable integration. Investors are prioritizing companies with near-term commercial viability.
Why is India important for Asia climate tech in 2026?
India forces Asia climate tech startups to solve the hardest version of their problem: extreme cost sensitivity, large scale, and grid variability. Technologies that work commercially in India tend to be deployable across most other price-sensitive markets globally, making it the region’s most valuable proving ground.
