Top Clean Energy Startups in 2026

Sense provides high-resolution energy monitoring for your entire home. Sense analyzes one million samples per second to provide you with energy insights, home awareness, and peace-of-mind from anywhere.

Blue Ink Digital provides realtime and exclusive leads directly to out customers so they can grow their business faster. Our clients range from small roof installers to nationwide solar panel providers. We take pride in leveraging technology to ensure that we can deliver the highest quality product to our clients.

Joule Case is advanced power made simple. Joule Case has created an entire product platform to provide portable and backup power for all applications. Joule Case battery systems can be charged via the wall outlet or solar. Our products are ideal for providing backup power for your home, mobile business, or other facility and are sized to your unique application. Joule Case is dedicated to replacing dirty combustion generators with a clean, quiet solution that enables further solar panel applications.

Our mission is to drive rapid decarbonization in global transport and power sectors by intelligently connecting electric vehicles to the grid. Our software uses predictive analytics and systems optimization to make it cheaper and safer for utilities to support the growth of electric vehicles, increase renewable energy adoption, and save customers money. Weave Grid is backed by premier energy-focused venture investors. Join us to tackle one of the biggest challenges and business opportunities of this century.

SolarGrade provides fast, easy-to-use software that standardizes solar & storage inspection procedures, enables team collaboration, and generates sharable professional reports. Our customers are any type of company that does work in the field from Engineering, Procurement and Construction, Operations and Maintenance, Independent Engineers to Quality Control Personnel.

Project Canary is a mission-driven B-Corp that helps reduce emissions in the energy, waste, and agriculture industries through independent assessment of carbon and environmental footprints. With offices in Denver and Austin, Project Canary achieves this goal by ingesting data from various sources, including its own proprietary environmental sensors, to calculate carbon emissions from different facilities in real-time. The resulting independent, trusted data can inform the procurement of offsets in real-time using microtransactions, formulate the data-driven ESG strategy that investors now demand, improve operations by identifying problem areas in minutes, and bolster customer engagement through radical supply chain transparency. Initially, Project Canary is focused on the energy industry. With thousands of energy assets analyzed and hundreds of environmental and air quality sensors currently deployed, Project Canary is positioned better than anyone to provide empirical ESG data. Project Canary’s success is attributed to the motivation, skill, and teamwork of its employees. The team understands the importance of maintaining a culture where relationships are valued, feedback is crucial, and trust in each other and our products/services is paramount. If you enjoy a fast-paced environment, mission-driven work, and being a valued member of a motivated diverse team, we want to hear from you.

HAX is an SOSV program for hard-tech startups transforming industry. HAX started in 2012 with the goal to provide entrepreneurs with the opportunity to solve the world’s problems through hardware. We’ve spear-headed the hardware renaissance and created the lean hardware movement, which led us to build the world’s largest community of hardware companies with our two-stage programs - Stage I in Shenzhen which helps startups build and ship products, and a Stage II program in San Francisco which is helping them scale worldwide. The 300+ startups HAX invested in have been tackling extremely important world challenges in consumer, health, enterprise and industrial environments, while impacting the world with amazing products such as Particle, Makeblock, Yeelight, Avidbots, Opentrons, Nura, Simbe Robotics, etc... Companies are hailing from the US at 60%, 20% from Europe and 20% from Asia.

Charm Industrial is a venture-backed startup in San Francisco with a mission to reverse climate change and return the atmosphere to 280ppm CO₂ – otherwise known as pre-industrial atmospheric CO₂ concentration. To accomplish this, we’re working on both carbon removal and emissions reductions. First, we’re working on carbon removal through bio-oil sequestration. Charm uses plants to capture CO₂ from the atmosphere. We convert biomass into a stable, carbon-rich liquid and then pump it deep underground. This removes CO₂ permanently from the atmosphere, out of reach of wildfires, soil erosion and land use change. Second, we’re working on emissions reductions by decarbonizing ironmaking, which makes up more than 7% of global emissions. Come help us fight climate change — gigatons or bust!

EverCharge enables widespread adoption of electric vehicles through dynamic power allocation. All buildings have limited electrical capacity preventing installation of chargers to support EV growth. EverCharge’s power management technology, SmartPower, increases charging capacity by up to 10 times drastically lowering installation costs making it possible to provide scalable charging in any building.