Best Energy Tech Companies in Boston, United States

Provider of community solar programs and energy solutions for businesses. It offers community solar subscriptions, enabling savings on electricity costs without rooftop panels. It delivers energy storage solutions and power purchase agreements for commercial users. It also offers community solar programs with no rooftop panels, sign-up fees, or long-term contracts, enabling savings on electricity costs. It focuses on clean energy asset development, customer acquisition, and management, minimizing risk for counterparties.

Funding rounds

• Apr 2026Conventional Debt$200M
• Feb 2026Series E$180M
• Mar 2024Series E$520M
• Jun 2023Conventional Debt—

Founders & team

Zaid AshaiCEO

Investors

US Bank, MUFG, Generate Capital, Good Energies, RCG, PJC

Tech stack

Apple Icloud MailAwinBootstrapCloudflareCloudflare Bot ManagementCore-Js

Provider of nanotech based electrode materials for supercapacitors. It offers nanotech-enabled electrodes, ultracapacitors, and thermal interface gap filler pads for electric vehicle batteries. Its features include low cost, high cell-level energy density, fast charging performance, thermal interface gap filler and roll-to-roll coating, and calendering equipment.

Funding rounds

• Nov 2025Series E$54M
• Sep 2025Series D—
• Apr 2025Grant (prize money)$47.5M
• Jan 2025Grant (prize money)$47.5M

Founders & team

John CooleyFounder & CEOEric KishCEO

Investors

Fortistar, GM Ventures, Marubun, Niterra, Catalus Capital, Samsung Venture Investment

Tech stack

Hubspot Cms HubHubspotJqueryCloudflare Bot ManagementGoogle Font ApiGlide.Js

Offering solutions for solid oxide fuel generators. It aims to replace internal combustion engines for backup and off-grid applications.

Funding rounds

• Sep 2025Series D$306.6K
• Dec 2024Series D$2.1M
• Jul 2024Series D$22.5M
• Nov 2022Series C$17M

Founders & team

Nate PalumboChief Technology Officer and FounderPaul OsenarCo-Founder & CEO

Investors

ITOCHU, Enphase Energy, Sunnova, Rogers Capital, H+ Partners, Cricetus Felix Ventures

Tech stack

ElementorFramer SitesGodaddyGoogle AnalyticsGoogle Font ApiHsts

Provider of charging solutions for electric vehicles. The company focused on the development of portable electric vehicle charging points. It provides EV charging solutions for businesses.

Funding rounds

• May 2025Series A$15.5M
• May 2025Venture Debt$15M
• Sep 2024Series A$13.3M
• May 2023Series A$7M

Founders & team

Joshua AvivFounder/CEO

Investors

Cleveland Avenue, Mark Cuban Companies, Tale VP, Pendulum, SVB, Summer Watson

Tech stack

Amazon SesAmazon Web ServicesCloudflareCloudflare Bot ManagementCore-JsGoogle Font Api

Developer of lithium metal battery technology using a vanadium cathode. The technology aims to eliminate dependence on a global supply chain. It focuses on producing a battery free of graphite, nickel, cobalt, and manganese. The company’s technology combines metals extraction and anode production at a single location.

Funding rounds

• Mar 2025Grant (prize money)—
• Mar 2024Series A$19.9M
• Aug 2023Series A—
• May 2022Series A$9.4M

Founders & team

Emilie BodoinCo-Founder & CEODonald SadowayCo-Founder

Investors

Oxy, Energy Capital Group, DOE

Developer of automated solar panel installation equipment. This equipment is designed to integrate seamlessly into existing workflows, minimizing disruption and maximizing efficiency. The focus is on providing technology easily adopted by existing crews, requiring no significant process changes or on-site integration. The equipment automates a key stage of solar construction, improving speed and reducing labor costs.

Funding rounds

• Jul 2025Series A$3.5M
• Jul 2025Grant (prize money)$4.9M

Founders & team

Jay WongFounder & CEO

Investors

Australian Renewable Energy Agency

Tech stack

AngularCart FunctionalityCore-JsGoogle Font ApiGoogle WorkspaceHsts

Developer of wing-in-ground technology-based electric sea gliders. Its passenger vehicles are a hybrid between an aircraft and a hydrofoil and use wing-in-ground-effect technology to travel at an altitude of a few metres above the surface of the water. It includes electric propulsion and long-distance travel.

Funding rounds

• Jun 2024Series A—
• Mar 2024Series A—
• Jul 2023Series A$60.5M
• Mar 2023Series A—

Founders & team

Michael KlinkerCo-Founder and CTOBilly ThalheimerCo-Founder & CEO

Investors

HIS, Caffeinated Capital, Founders Fund, Japan Airlines, Y Combinator, Hawaiian Airlines

Tech stack

Apple Icloud MailCdnjsCloudflareCloudflare Bot ManagementCloudflare TurnstileGoogle Analytics

Ofers a unified API for integration leading property management systems. The platform enables users to manage time and revenue. It helps in managing customers through its property managing features.

Funding rounds

• Sep 2025Series A$5M

Founders & team

Remen OkoruwaCo-Founder & CEONickolas JohnsonCo-Founder & CTOBen KellerCo-founder & COO

Provider of risk management solutions to improve the profitability of wind power. It offers hedge assessment which can provide the user with the basic knowledge on volume hedging landscape and options available in the location, expertise in managing the hedging structure to minimize the risk and provide the customized analysis on performance. It also provides solutions to track and analyze the generation and financial performance of wind farms.

Developer of eVTOL (electric vertical take-off and landing) aircraft management platform designed to optimize mobility and connectivity. The company's platform helps in the deployment of high-performance and ultra-quiet vertical flight systems, enabling clients to improve urban air mobility systems.

Provider of energy-saving HVAC solutions for heating, ventilating, and air conditioning systems. It offers(HLR) HVAC Load Reduction, a family of retrofit modules that remove carbon dioxide, volatile organic compounds, and other trace contaminants. The HLR solution minimizes the amount of outside air required to maintain indoor air quality, reducing the load on the HVAC system and resulting in significant energy savings.

Funding rounds

• May 2023Series B$13.9M
• Nov 2020Grant (prize money)—
• Mar 2020Series B$20M
• Mar 2016Series B$10M

Founders & team

Christian WeeksChief Executive Officer

Investors

Building Ventures, Ajax Strategies, Breakthrough Energy, OurCrowd, DOE, Leumi Partners

Provider of community solar subscriptions that offer savings on electricity bills. It connects individuals and businesses to community solar farms. Subscribers receive credits on their utility bills based on the solar farm's energy production. The service analyzes electricity usage to determine appropriate solar farm allocation. It manages subscriptions, billing, and crediting for solar project owners and subscribers.