25 Top Climate Tech Companies to Know in 2025

Put simply, climate tech companies and startups are focused on emissions mitigations in all sectors. These companies are taking on the burden of climate change and tackling it with innovative and often groundbreaking technologies. 

While climate tech companies were less abundant — and raised less money — in the 2010s, investors started to take notice in 2020. $37.5B in capital was invested in climate tech companies in 2020, peaking at $75.4B in 2021, according to Pitchbook data. While investments have tapered off since then, investments in climate tech startups are still robust. 

Many of these innovative climate tech companies are in it for the greater good. They are mission-driven companies that want to make a difference — and have a clear vision on how to make that happen. 

Check out these 25 companies that are at the forefront of climate tech. 

 

 

25 Top Climate Tech Companies

GreenLancer

Founded in Detroit in 2013, GreenLancer is built on the vision that accelerating renewable energy adoption will create meaningful, lasting change for our planet and communities. The company's mission is to make solar and EV charger design, engineering, and field service management simple for clean energy contractors. While climate tech still faces many barriers, GreenLancer is making critical solar services more accessible — it’s the only online marketplace for contractors to select service partners to fill gaps within their engineering, procurement, construction, and maintenance processes. The company is growing in Detroit and across the country with its remote-first team.

 

Aquora Biosystems Inc.

Top climate tech company: Aquora Biosystems. Image source: Tim Fairley-Wax LinkedIn

Developed out of the University of Michigan's Environmental Biotechnology Lab, Aquora Biosystems harnesses biofilms to transform organic wastes into valuable products. The company's mission is to establish a refinery of the future that processes organic waste feedstocks instead of oil to realize a lower-carbon emission future

Aquora-enabled projects can deliver carbon abatement of 100 to 300 g CO2/MJ. Aquora's core membrane biofiltration technology is the product of a decade of research conducted by Aquora co-founders. Through detailed comparison with state-of-the-art technologies and bench-scale studies treating organic wastes like food waste, wastewater sludge, brewery wastewater, and dairy wastewater, Aquora's technology was developed to overcome hurdles facing existing solutions. 

 

Capture Tech

Founded in 2023 in Ann Arbor, Mich., Capture Tech is developing clean-tech, ecosystem-scale solutions using biochar to sustainably manage carbon, nutrient cycling, and biodiversity. The company's Biochar Capture Packs (BCPs) are a breakthrough in environmental remediation and offer a modular, efficient solution for treating contaminated water and soil. Capture Tech is committed to helping solve the challenges facing U.S soil and water quality. 

 

Encamp

Encamp helps environmental teams increase productivity and centralize data across entire organizations by strategically working with companies to transform their environmental compliance activities from a set of disjointed functions with high-tech software and high-touch expert support.

Encamp was built on the belief that environmental compliance is harder than it needs to be. If it's easier to comply with environmental regulations, companies will both be better stewards of the environment and achieve positive business outcomes with more efficient operations.

Encamp is a remote-first team — and currently hiring!

Adena Power

Adena Power wants to support a more sustainable and equitable clean energy transition for a Net Zero Future. The climate tech company is an energy storage provider using domestic raw materials and Ohio manufacturing to deliver sodium batteries to commercial and industrial markets. In 2024, Adena Power won a $200,000 grant from the U.S. Department of Energy (DOE) Wind Energy Technologies Office (WETO) and Office of Electricity to accelerate the development of its sodium solid-state battery technology for seamless integration with wind energy systems. The company is currently in the demonstration phase of this IP-protected energy storage solution and intends to launch its first product this year.

Powermers 

Powermers Smart Industries, Inc. is working to transform the global landscape of logistics and mobility by creating a unique ecosystem for accelerating the world’s shift to green-powered solutions. The Ohio-based company's vision is a world where sustainable transportation and industrial equipment are the norm, empowering conscious choices for a healthier planet.

Powermers established a Supply-Chain-as-a-Service business model to transform the global commercial transportation and industrial equipment markets. Powermers is a solutions integrator and has formed a network of partnerships with manufacturers and technology services to offer customers a comprehensive suite of solutions across the entire value chain with a large and growing fulfillment capacity.

SkySpecs

SkySpecs wants to make renewables the most efficient energy source in the world. The company is simplifying renewable energy asset management by offering purpose-built technologies and services that help deliver industry-leading productivity, efficiency, and returns. SkySpecs helps customers unlock the power of their data so they can make confident, informed decisions. In March 2025, the climate tech company raised $20M to scale its operations globally.

Fresh Coast Climate Solutions

Fresh Coast Climate Solutions' mission is to reverse climate change through bold solutions and transformative action. The Michigan-based climate tech company consults with organizations to implement innovative, equitable, and sustainable climate solutions that make an impact. Fresh Coast Climate Solutions' deep knowledge and skill in the circular economy, life cycle assessment, GHG inventories, carbon mitigation, ESG and CSR, water stewardship, and cleantech enable it to provide its clients with unique insights and solutions to complex problems.

Michelman

Michelman is a Cincinnati-based global developer and manufacturer of environmentally-friendly advanced materials for industry, offering solutions for the coatings, printing and packaging, and fibers and composites markets.

The company has a passion for environmentally conscious innovation, and its solutions are used in agricultural and architectural coatings, digital printing, foodservice packaging, and advanced composites for automotive and aerospace. From helping grow food and keep it fresh, to making vehicles lighter and more fuel efficient, to shielding our homes from the elements, Michelman‘s environmentally conscious solutions protect and enhance the materials that shape our world.

Sortera Technologies

Sortera Technologies is headquartered in Indiana. The climate tech company’s vision is to enable 100% reuse of metals recovered from end-of-life products for manufacturing of similar products. Sortera brings state-of-the-art artificial intelligence, image/data analytics, and advanced sensors to the industrial scrap metal recycling and re-use industry, boosting the strength of the circular economy.

Sortera's innovations and products offer cost, quality, and performance advantages to domestic industry while ensuring a safer and better environment for the future.

GoSun

GoSun has developed breakthrough solar technologies and created portable, practical solar products for recreation, emergency, and off-grid applications. 

As part of its ethos of giving back, GoSun is committed to helping people globally utilize this fuel-free technology. The company has partnered with NGO's and nonprofits like the American Red Cross to spread its solar technology in a socially, environmentally, and financially sustainable way throughout emerging markets in Asia, Latin America, and Africa.

Battle Motors

Ohio-based Battle Motors is the leader in the vocational truck industry, providing work-ready diesel, clean natural gas (CNG), and now EV chassis designed and manufactured in North America for the refuse and recycling markets. Battle Motor’s durable, dependable trucks are built to excel in many applications that now include middle- and last-mile delivery. 

Numat

Chicago-based Numat is on a mission to drive industrial efficiency through chemistry innovation. They are the first in the world to industrialize Metal-Organic Frameworks (MOFs) across critical industrial sectors. These MOF-based solutions are deployed in a variety of industries and applications to reduce the negative impact of chemical products and processes on human health and the environment.

For example, Numat's solutions can be used in next-generation protection technology in warfighter apparel to capture and destroy chemical weapons and toxic industrial chemicals, and in existing semiconductor manufacturing processes.

C-Motive

C-Motive is modernizing motor technology by prioritizing energy efficiency in every aspect of its design. C-Motive's mission is to create higher efficiency renewable generators applicable to the next generation of e-mobility vehicles, directly reducing carbon emissions. C-Motive's motors have unmatched torque, efficiency, and simplicity, leading to a new generation of applications that create more renewable power and waste less electricity. C-Motive's motors run on the principle of electrostatic forces, also known as "static cling,"​ and stand to change the machines that shape and run our lives. 

RoadRunner

RoadRunner is a remote-flexible, Pittsburgh-based climate tech company on a mission to accelerate the road to Zero Waste. The company's efficient, cost-effective, and sustainable waste operations aim to provide maximum value for customers and communities. The team is dedicated to leveraging technology and innovation to modernize a vital industry with integrity, expertise, and a passion for creating a future where waste is a problem of the past.

SusMaX

SusMaX is a startup spun out of Drexel University. SusMaX's mission is to contribute to the circular economy by utilizing patented technology to cost-effectively convert coal ash to valuable construction lightweight aggregate used in the construction industry. In 2023, the company was awarded $1 million in grant money by The National Science Foundation as part of its Small Business Innovation Research (SBIR) program. This funding enabled SusMaX to further develop its technology. In 2024, the company completed its fourth trial with success: its concrete samples achieved 14% and 22% higher strength at 7 and 28 days, respectively, compared to control samples.

PowerPanel

PowerPanel is the leader in dual-energy solutions that generate electricity and harness solar power for thermal storage. The company prides itself on understanding the unique energy demands and environmental goals across various sectors. Its Gen₂O solutions are tailored to a wide range of industries, including healthcare, hospitality, government, and NGOs, and will reduce operational costs, enhance energy efficiency, and help to achieve carbon neutrality.

Remora

Remora is based in Michigan and is on a mission to capture carbon from semi-trucks. They’re building a device that attaches to a truck's tailpipe and filters the carbon emissions out of its exhaust. The driver offloads the captured, compressed CO2 while they refuel and Remora sells the high-purity, liquid CO2 to end-users, or sells credits for permanently sequestering it underground in EPA-certified wells. Remora shares the revenue from the captured CO2 with its customers to create a new revenue stream for them while reducing their emissions.

Sniffer Robotics 

Sniffer Robotics is developing a safer, faster, and more accurate technology that provides impactful benefits to the industry and the environment.  

The Ann Arbor-based climate tech company is leveraging the latest technologies to automate manual methods for gas detection with an initial focus area on the Municipal Solid Waste industry — methane (CH4) gas is generated by the decomposition of waste. Methane has a high potency and contributes to climate change. Sniffer is focused on providing a more effective and accurate means of giving actionable data to the environmental industry through automated unmanned aerial vehicle (UAV) based solutions.

LanzaTech

LanzaTech doesn't just capture carbon. It takes it a step further by transforming carbon into something valuable and useful at scale. LanzaTech’s carbon recycling technology converts bacteria to fuels and chemicals, like sustainable aviation fuel. 

ClearFlame is on a mission to eliminate fossil fuels in economies worldwide. ClearFlame’s technology modifies traditional diesel-style compression engines, unlocking them to use a wide range of simple, clean, renewable, liquid fuels.

With electric vehicles still more than a decade away for heavy-duty industries like long-haul trucking, ClearFlame provides solutions for fleets and long-haul trucking that can be used today, without new infrastructure or a green premium.

Aeroseal

Based in Ohio, Aeroseal is a climate tech company on a mission to reduce the world's carbon emissions by 1 gigaton annually with its sealing technology. Aeroseal’s technologies inject a fog of sealant particles into ducts and walls that are inadequately sealed by manual solutions. The company's technology has sealed nearly 200,000 projects and saved nearly $2 billion in wasted energy. Aeroseal is one of the fastest-growing clean technology companies in the U.S. and currently has a presence in 27 countries and all 50 states across the U.S. 

75F

75F's solutions are leading to smarter and more sustainable buildings. The company's IoT-based building management system is so efficient that it can reduce worldwide greenhouse gas emissions by 5%, all while lowering energy costs for tenants and businesses and improving comfort for guests and occupants. 

The company's solution brings together hardware and software to analyze building performance and control and optimize existing HVAC equipment and systems. 

LIVAQ

LIVAQ, based out of the Newlab mobility hub in Corktown, is reinventing the ATV market with a sleek electric vehicle for eco-friendly off-road experiences, connecting riders to the outdoors. LIVAQ is currently taking preorders for its EQUAD vehicle.