Thermal Management in India: A Rising Patent Base and Wide Startup Field

What it is

Thermal management is the engineering discipline of controlling heat within a system to keep components at safe, efficient operating temperatures. It uses conduction, convection, and radiation to move heat away from sources like batteries, processors, and power electronics.

Common techniques range from simple air cooling with fans and heat sinks to liquid cooling via cold plates or immersion, and two-phase systems like heat pipes and vapor chambers. Thermal interface materials (TIMs) fill microscopic air gaps between hot surfaces and coolers to improve heat transfer.

Without effective thermal management, devices throttle performance, degrade faster, or fail outright. It is a foundational requirement across electric vehicles, data centers, smartphones, aerospace, and industrial equipment.

The value chain

The thermal management value chain spans materials, components, system integration, and end-use industries. Value and defensibility concentrate in advanced materials and integrated system design.

• Raw Materials: Thermal interface materials, phase-change materials, substrates, and dielectric coolants. Global players include 3M, Honeywell, and Parker Hannifin.
• Components: Heat sinks, fans, liquid cooling modules, thermoelectric devices, and heat pipes. Key names: Aavid Thermalloy, Danfoss, NanoSonic.
• System Integration: Custom design and assembly of complete cooling solutions for specific applications. Dominated by Bosch, Emerson Electric, and Schneider Electric.
• End-Use Industries: Automotive, data centers, consumer electronics, aerospace, healthcare, and renewable energy. Margins are often captured at the integration stage, while materials innovation creates long-term defensibility.

Where it's heading

Global demand is expanding as electrification and high-performance computing push thermal loads higher. The global thermal management market is estimated at USD 81.97 billion in 2025, growing at 8.5% CAGR (Fortune Business Insights). India's accelerating EV adoption and data center build-out are creating parallel local demand.

• Advanced materials: Phase-change materials, next-generation TIMs, aerogels, and dielectric coolants are moving from lab to production (Lux Research).
• Two-phase cooling: Hyperscale data centers are adopting two-phase systems for sub-ambient performance and energy efficiency (Mordor Intelligence).
• Software-defined thermal management: Real-time sensors and predictive algorithms are optimizing cooling dynamically, cutting energy waste (Mordor Intelligence).
• Electrification pull: Vehicle electrification and high-power-density electronics remain the strongest demand drivers (BCC Research).
• India context: TERI has called for accelerated solar thermal adoption in industry, and the climate tech startup ecosystem counts over 800 ventures, though thermal management remains a cross-cutting enabler rather than a standalone category.

The opportunity in India

India's thermal management patent activity is rising, with 162 patents mapped in our dataset and momentum described as strong even before the most recent filings are fully published. This signals growing indigenous R&D, much of it concentrated in mobility and transport.

Our data links 87 patent-holding startups to thermal management, while 54 deep-tech companies explicitly reference it in their profiles. The gap suggests many firms embed cooling IP within broader system-level products rather than positioning themselves as pure thermal management plays.

White space exists beyond EV batteries. Data center liquid cooling, advanced TIMs, and thermal solutions for consumer electronics and industrial equipment remain under-explored by Indian startups. The mobility-transport sector has attracted $3.25 billion in funding across 423 companies, but dedicated thermal management ventures rarely raise standalone rounds, pointing to an opportunity for specialized investors.

India signal: patents, startups, capital

India's thermal management patent stock stands at 162, with a rising filing trend. The dominant sector is mobility-transport, reflecting the intense focus on battery and power electronics cooling.

Eighty-seven startups in our data hold thermal management patents. The most active include Exponent Energy (18 patents), Ola Electric (14), Sun Mobility (13), Ather Energy (9), and Matter Motor Works (6). A broader set of 54 companies reference thermal management in their profiles, such as Simplicomp, EVCRAT, COOLXPERT New Materials, AgniCool, and MATREXIA Advanced Technologies.

Sector-level funding in mobility-transport totals $3.25 billion across 423 companies, with a median raise of $1.7 million. Notable funded players include Ather Energy ($502M), Svaayatt Systems ($473M), and Netradyne ($308M). While this capital is not earmarked for thermal management alone, it underscores the financial weight of the application area where cooling innovation is most critical.

In our data

Sources

• What Is Thermal Management? A Clear Overview of Its ... ↗
• What is thermal management? ↗
• Thermal management introduction ↗
• Thermal Management Technologies Market Forecasts 2031 ↗
• Thermal Management System Market Size, Share [2034] ↗
• Climatiq named in the 2024 Gartner® Cool Vendors ... ↗
• Thermal Management Market Size, Share and Growth ... ↗
• Global Market for Thermal Management Technologies ... ↗