Top Series A Climate tech companies

Companies decarbonising power, transport, agriculture, and industry. Filtered to companies whose latest disclosed round is Series A.

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Ranked by current headcount across Series A Climate tech companies. Refreshed monthly.

1
SMA Solar· Sandershausen, Hesse, Germany
Innovative and sustainable key technologies are prerequisites for renewable energy supply. More than 3,500 employees from 18 countries work to ensure that SMA is actively helping to promote the production and development of PV system technology worldwide.SMA is the only inverter manufacturer worldwide that offers the right inverter for every module type and system size ; for small residential systems, medium-sized commercial systems and large-scale plants; grid-connected photovoltaic systems; and off-grid and hybrid systems. SMA also develops technologically leading system solutions and is on the leading edge of the energy of the future, in areas such as intelligent optimization of self-consumption, grid integration of solar power and integration of batteries for more effective use of renewable energies. The intention of this LinkedIn profile is to share expert knowledge in inverter technology, interesting reference projects and new products in the field of commercial and large-scale solar power plants and to discuss today’s and future energy supply structures and solutions. We are looking forward to your comments, questions and feedback.Corporate information: https://www.sma.de/en/corporate-information.htmlData Protection: https://www.sma.de/en/data-protection-declaration.html
- Series A
- 2k employees
- Founded 2023
2
Red Ambiental· Monterrey, Nuevo León, Mexico
Red AmbientalMisión:Gestionar el Manejo Integral de residuos, ofreciendo Soluciones innovadoras valoradas por clientes y Sociedad. Asegurando el crecimiento rentable del negocio , así como la calidad de vida en el trabajo y el desarrollo del Capital Humano.Visión:Ser la Empresa más confiable para la gestión integral de residuos realizada de manera sustentable y segura, brindado una experiencia de servicio notable. Valores:Pasión por servirCumplimiento de Compromiso Excelencia en la EjecuciónSustentabilidadSeguridadIntegridadTrabajo en EquipoCapital HumanoRentabilidadPolítica de Calidad:Cumplir los compromisos adquiridos con los clientes, brindando una experiencia de servicio notable y fortaleciendo las relaciones comerciales de largo plazo. Política de Seguridad, Higiene y Medio Ambiente:Preservar la integridad física del ser humano y del medio ambiente ante riesgos generados por actos o condiciones inseguras.
- Series A
- 880 employees
- Founded 1997
3
GameChange Energy· Norwalk, Connecticut, United States
At GameChange Energy, we’re building the infrastructure that powers the clean energy future. Through our family of companies, we deliver smart, reliable solutions for utility-scale solar, energy storage, data centers, and other critical power applications around the world. From solar trackers and mounting systems to transformers, eBOS solutions, drone-based inspections, and customized infrastructure, our technologies are designed to help projects perform better, operate reliably, and scale with confidence. We combine engineering expertise with practical innovation to make clean energy more efficient, dependable, and accessible worldwide.
- Series A
- 580 employees
- Founded 2012
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4
Solar Energy· Curitiba, Paraná, Brazil
Especista- EPC Turn Key - Usinas empresariais, consórcios de energia.
- Series A
- 477 employees
- Founded 2012
5
Prozeal Green Energy Limited· Ahmedabad, Gujarat, India
Founded in 2013, Prozeal Green Energy Limited is a leading Renewable Energy Developer, Solar EPC company, and Independent Power Producer (IPP) committed to accelerating the global transition toward sustainable energy.What began with rooftop and ground-mounted solar projects has evolved into a comprehensive renewable energy platform delivering large-scale energy infrastructure across India and international markets. Today, Prozeal provides end-to-end solutions across Solar, Wind, Solar-Wind Hybrid, Battery Energy Storage Systems (BESS), Green Hydrogen, and Green Ammonia.With a strong focus on innovation, engineering excellence, safety, and execution, Prozeal has established itself as one of India's leading developers of Commercial & Industrial (C&I) Solar Parks and Utility-Scale Renewable Energy Projects.Our impact at a glance:• 3.2+ Billion Units of Clean Energy Generated• 20+ Million Tons of CO2 Emissions Reduced• Expertise Across Solar, Wind, Hybrid, BESS, Green Hydrogen & Green Ammonia• Successful Project Execution Across India and International Markets• Expanding Presence in Europe, Africa, and NepalLed by a visionary leadership team, Prozeal combines deep industry expertise with a future-focused approach to help businesses, industries, and communities achieve their sustainability and decarbonization goals.As we continue to expand globally, our mission remains clear: to develop reliable, scalable, and future-ready renewable energy solutions that create long-term value while building a cleaner, more resilient world.Awards & Recognition:• Gujarat State Green Future Leadership Award• Best Commercial & Industrial Utility Project Award• Company Excellence Award for EV Charging Solutions• GCCI Annual Trade Expo Recognition• ET Energy Leadership Awards• Platinum Partner at Gujarat Chemical and Petrochem Conference 2026.
- Series A
- 422 employees
- Founded 2013

6
Musa· São Paulo, São Paulo, Brazil
MUSA is a Brazilian-based technology company developing an innovative waste management solution. Our goal is to create an efficient ecosystem between Waste Generators, Transporters and Recyclers, ensuring 100% reuse by leveraging technology. We don’t see waste; we see valuable materials and economic potential. We are committed to transforming the market by building an effective supply chain of reusable materials for products and services. musa.coJoin us!
- Series A
- 365 employees
- Founded 2020
7
Solar Panda· Kenya
Solar Panda is a social enterprise providing smart, low-cost solar power to communities across Africa, enabling families and small businesses to flourish and grow.Our high-quality solutions provide customers living without electricity access to clean, safe and sustainable solar energy through a unique rent-to-own business model. Customers make a small down payment followed by daily or weekly payments, equivalent to their existing fuel costs, using mobile technology to unlock energy and then they own the unit outright as quickly as 1 year. The Solar Panda system comes with a quality guarantee and includes lamps, mobile phone charging, a radio, a flashlight and a portable lantern. Customers can easily upgrade when they're ready to TV and other appliances as they start building a reliable credit history with Solar Panda.
- Series A
- 359 employees
- Founded 2017
8
SOLO LLC· Lehi, Utah, United States
Since 2018, Solo has been the sales enablement platform that helps EPCs, installers, and dealers close more deals, move faster, and grow without the friction that slows most teams down.Today, Solo powers over 6 million proposals and 900k installations, with 70+ integrations that keep teams moving without the usual tool-switching and admin overhead. Battery-only proposals are live now too, letting contractors configure storage options, model savings across multiple operating modes, and deliver clear backup recommendations that help homeowners say yes faster.Roofing and HVAC are on the way, because we know the friction we eliminate in solar exists in every trade.Fast. Accurate. Built for the field. Visit gosolo.io.
- Series A
- 263 employees
- Founded 2018
9
WeVOIS Labs Pvt. Ltd.· Jaipur, Rajasthan, India
WeVOIS Labs Pvt. Ltd. is a technology-driven waste management and sanitation innovation company headquartered in Jaipur, Rajasthan. We work at the intersection of technology, sustainability, and civic infrastructure to transform how India manages its urban waste.Our solutions empower Urban Local Bodies (ULBs), municipalities, and corporate partners to build cleaner, smarter, and more efficient cities — fully aligned with India's Swachh Bharat Mission.What We Do:▸ Tech-enabled solid waste management for urban bodies▸ Sanitation worker welfare & tracking platforms▸ Smart city sanitation infrastructure consulting▸ CSR & government partnership programs▸ Data-driven SBM-U compliance reportingWho We Work With:▸ Nagar Nigam / Nagar Parishad / Nagar Palika▸ State & Central Government departments▸ Corporate CSR divisions▸ NGOs and social impact organizationsDriven by the mission to make India's cities cleaner, greener, and more dignified — WeVOIS Labs is building the future of waste management, one city at a time.📍 Jaipur, Rajasthan | 🌐 www.wevois.com
- Series A
- 259 employees
- Founded 2012
10
Kilimo· Cordoba, Córdoba, Argentina
Kilimo combines applied science with field implementation to deliver measurable results through agriculture.We work with companies, farmers, and local actors to improve water security in priority watersheds.Operating as a water stewardship platform, basin by basin.A single system for water decisions at scale.
- Series A
- 236 employees
- Founded 2014

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Find engineers and founders at Series A Climate tech companies

Series A Climate tech companies are some of the most active hirers in the market. The list above ranks the largest Climate tech companies whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 312 matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Climate tech share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Climate tech talent is concentrating right now.

Refolk converts this list into a search. Ask for “Series A Climate tech founders hiring senior engineers” or “design leads at Series A Climate tech companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Climate tech companies whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Wed, 16 Sep 2026 11:40:06 GMT

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The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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