2026 Decarbonization Reality Check

The IEA estimates energy-related CO2 emissions increased 0.8% in 2024 to an all-time high of 37.8 Gt, alongside atmospheric CO2 concentrations of 422.5 ppm in 2024. This backdrop forces procurement, permitting, and financing decisions to move from voluntary to auditable decarbonization pathways.

At the same time, the World Bank reports carbon pricing revenues reached USD 104 billion in 2023, with 75 instruments in operation and 24% of global emissions now covered. This is a direct signal that more decarbonization value is being routed through price, border, and reporting mechanisms.

The global energy investment will reach USD 3.3 trillion in 2025, with USD 2.2 trillion into clean technologies versus USD 1.1 trillion into oil, gas, and coal. This shows a widening split that rewards solutions that electrify demand, stabilize grids, and derisk industrial conversion. Within that, the IEA expects USD 1.5 trillion in electricity sector investment in 2025 and USD 450 billion in solar investment.

These activities underscore where corporate power strategy, OEM roadmaps, and project finance are concentrating.

Decarbonization 2026 Starts at 37.8 Gt

Global energy investment is projected at a record USD 3.3 trillion in 2025, with clean technologies USD 2.2 trillion (renewables, nuclear, grids, storage, low-emissions fuels, efficiency, electrification) versus USD 1.1 trillion for oil, gas, and coal. This is an adoption-scale benchmark showing decarbonization is now a capex category, not a CSR program.

Further, IRENA calculates that tripling renewables by 2030 requires around 16.6% annual growth (2024-2030).

Electric car sales exceeded 17 million in 2024 and represent more than 20% of new car sales worldwide. Sales increased more than 25% year-on-year. The report also states that the global EV stock exceeded 60 million in 2024. This is evidence for decarbonization in mobility, upstream battery, and minerals supply chains.

The decarbonization sector expands as industries, governments, and investors intensify their commitments to reducing greenhouse gas emissions and transitioning toward low-carbon systems. Our platform records 5030+ startups within a broader base of 150 900 companies active in the global decarbonization ecosystem.

With a yearly industry growth rate of 1.92%, the market shows steady forward momentum, driven by regulatory mandates, corporate net-zero strategies, and accelerating deployment of clean technologies.

The industry is expected to grow from USD 2.37 trillion in 2025 to USD 6.57 trillion by 2034.

 

 

This sector’s companies have filed for more than 244 900 patents in areas like carbon capture, low-carbon fuels, industrial process optimization, emissions monitoring, and energy efficiency technologies.

Supporting this innovation is a global workforce of 18 million professionals, with 3700 new employees added in the past year.

Decarbonization activity is distributed across key global hubs. The USA, the UK, France, Germany, and Canada emerge as the top national centers for innovation, regulation, and scale-up activity.

At the city level, London, New York City, Houston, Singapore, and Berlin stand out as major nodes where industrial players, energy leaders, research institutions, and emerging startups converge to advance the low-carbon transition.

 

Credit: PwC

 

However, innovation requires transformation across technology, infrastructure, and supply chains in a sector like automotive. While 69% of the automotive companies are on track to meet their Scope 1 and 2 emissions targets, only 28% are progressing at the pace required to achieve their Scope 3 goals.

 

5 Top Decarbonization Startups to Watch

Earthics builds a MOF Technology

US-based startup Earthics develops MOF-based carbon capture technology that captures CO2 directly from gas streams at industrial sites. It employs proprietary MOFs that adsorb CO₂ with high selectivity, strong stability, and minimal energy use, while modular system components integrate into existing infrastructure.

Incoming process gas enters the MOF vessel, where CO2 is extracted using an energy-efficient separation method. It allows purified CO2-free gas to exit while the captured CO2 is removed via a dedicated outlet. It scales across applications ranging from power generation and heavy industry to transportation and processing facilities.

Entropic offers an Industrial Heat Decarbonization Platform

Dutch startup Entropic develops process simulation software that creates a digital model of an industrial site by combining uploaded operational data with structured inputs. This serves as the basis for precise technical and financial analysis.

Next, it pairs site data with parametric equipment models for technologies like heat pumps, heat exchangers, and thermal energy storage for engineers to evaluate performance, sizing requirements, and feasibility.

Further, it generates detailed reports that include technical specifications, energy savings, ROI projections, and spatial considerations for stakeholder review.

Electrofuel Marine provides On-Ship Fuel-to-Fuel Conversion

Singaporean startup Electrofuel Marine develops graphene-based nanocomposite membrane (GOMe)-based decarbonization technology. It separates CO2 and CH4 from ship flue gas and converts the captured CO2 into methanol from its flue-to-fuel reactor.

Next, the flue-to-fuel reactor combines the separated CO2 with hydrogen generated from seawater using onboard renewable energy. The reactor drives a controlled synthesis reaction that produces methanol, which functions as a carbon-neutral marine fuel.

Tulum Energy builds a Methane Pyrolysis Platform

Luxembourg-based startup Tulum Energy develops a methane pyrolysis platform that produces clean hydrogen from natural gas and biogas. Its system thermally decomposes methane in the absence of oxygen, while separating it into hydrogen and solid carbon. Further, it eliminates CO2 generation at the point of production and creates a marketable carbon co-product.

The platform leverages established machinery and supply chains to streamline deployment, reduce technical risk, and support large-volume industrial hydrogen demands. Moreover, the process yields solid carbon suitable for applications like carbon black, graphite, graphene, construction additives, filtration media, energy storage materials, and advanced composites.

ThermalCyclones offers an Electric Industrial Steam System

UK-based startup ThermalCyclones offers an industrial heat system that replaces traditional boilers by using a transcritical cycle with a proprietary working fluid. It combines rotational pseudo-hydrostatic compression with advanced heat exchange.

With this, the system draws energy from ambient air, waste heat, and electricity to achieve single-step temperature lifts to 225°C and steam pressures up to 40 bar.

Further, it provides simultaneous refrigeration and steam production, eliminates high-speed turbomachinery and sliding seals, and uses a non-flammable, ultra-low-global warming potential (GWP) fluid for safer performance.

Thus, ThermalCyclones offers a scalable heat solution that increases steam output for the same energy input, lowers operational costs, reduces dependence on fossil fuels, and advances industrial decarbonization without operational disruption.

Top Decarbonization Trends: Green Economy, CCS & Electrification

Discover the emerging trends in the decarbonization market along with their firmographic details:

The green economy domain includes 2165+ companies employing 130 000 people, with 45+ new employees added in the past year. Its 3.46% annual growth rate reflects increasing adoption of circular systems, low-carbon supply chains, green finance mechanisms, and sustainable industrial processes.

Carbon Capture & Sequestration has 510+ companies and 66 300 employees, including 30+ new hires in the last year. Its 2.12% annual trend growth rate shows steady advancement as governments and heavy industries scale capture solutions to reduce emissions from hard-to-abate sectors like cement, steel, and chemicals.

The electrification domain includes 7660+ companies employing 1.2 million people, with 208 new employees added this past year. An annual growth rate of 2.07% highlights the expanding change from fossil-fuel-driven systems toward electric alternatives across mobility, buildings, and industrial operations.

Financing the Transition: USD 2.3T Global Energy Investment in 2025

BNEF reports that USD 2.3 trillion was invested in the energy transition in 2025. This was split across electrified transport (USD 893 billion), renewables (USD 690 billion), and power grids (USD 483 billion). It also cites USD 127 billion in clean energy supply chain investment and USD 77.3 billion in climate tech equity finance.

Moreover, the European Commission states it is awarding EUR 2.9 billion in Innovation Fund grants to support decarbonization projects. This indicates that EU industrial decarbonization is being underwritten via public capital, not only ETS price signals. Additionally, the Commission allocated EUR 720 million to 7 projects under the first European Hydrogen Bank auction.

In total, these investors have backed more than 16 830 companies to demonstrate the wide dispersion of capital across emerging technologies, industrial applications, and climate-aligned business models.

 

Scope and Market Definition

This decarbonization outlook leverages the StartUs Insights Discovery Platform, which continuously analyzes 9M+ companies, 25K+ technologies and trends, and 190M+ patents, news articles, and market reports. It treated the scope as an ecosystem of solutions that reduce or remove emissions across energy, industry, transport, and the built environment. This approach captures the overlap between physical infrastructure shifts and enabling layers.

The analysis prioritizes hard-to-abate industrial decarbonization, grid and electrification constraints, low and zero-carbon fuels, CCUS, methane reduction, circular feedstocks, and MRV.