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Top 20 Smart (Energy-Efficient) Home startups in USA
Oct 29, 2025 | By Alexander Gillet | 29 |
1
Funding: $4M
Pila Energy develops innovative battery systems and software to provide energy security and energy management for homes and businesses.
Pila Energy develops innovative battery systems and software to provide energy security and energy management for homes and businesses.
2
Funding: $1.2B
Base Power is a modern power firm for the electric era that has built a reliable and affordable residential energy service.
Base Power is a modern power firm for the electric era that has built a reliable and affordable residential energy service.
4
Funding: $300M
Lunar Energy was founded to transition homes to 100% clean energy—making our electricity greener, our air cleaner, and our energy more safe, secure and reliable for all.
Lunar Energy was founded to transition homes to 100% clean energy—making our electricity greener, our air cleaner, and our energy more safe, secure and reliable for all.
5
Funding: $230.3M
SPAN develops smart electrical panels that unlock whole-home, room and appliance energy data designed to lower your energy bill.
SPAN develops smart electrical panels that unlock whole-home, room and appliance energy data designed to lower your energy bill.
6
Funding: $182.3M
Aquion Energy is a company that manufactures sodium ion batteries and energy storage systems.
Aquion Energy is a company that manufactures sodium ion batteries and energy storage systems.
7
Funding: $174.5M
Atom Power built the world’s first and only true solid-state circuit breaker. Using semiconductors to control the current digitally, this breakthrough unlocks a future where power is smartly controlled and exponentially safer.
Atom Power built the world’s first and only true solid-state circuit breaker. Using semiconductors to control the current digitally, this breakthrough unlocks a future where power is smartly controlled and exponentially safer.
8
Funding: $174.6M
Sense is offering home owners better insight into their energy usage levels, so they can adjust accordingly. The tech, which relies on AI/ML, works with smart meters from companies like Landis+Gyr and Schneider Electric.
Sense is offering home owners better insight into their energy usage levels, so they can adjust accordingly. The tech, which relies on AI/ML, works with smart meters from companies like Landis+Gyr and Schneider Electric.
9
Funding: $153.8M
Mighty Buildings is a developer of 3D printing technology and automation platform that makes housing more affordable for customers.
Mighty Buildings is a developer of 3D printing technology and automation platform that makes housing more affordable for customers.
10
Funding: $134.5M
Dandelion is an Alphabet spinout that develops geothermal heating, air-conditioning and cooling systems
Dandelion is an Alphabet spinout that develops geothermal heating, air-conditioning and cooling systems
11
Funding: $119M
Aeroseal seals both air ducts and building envelopes so you waste less energy and reduce your bill
Aeroseal seals both air ducts and building envelopes so you waste less energy and reduce your bill
13
Funding: $100М
Solatube developed the system that revolutionized the way daylight was brought into a building. Known as a tubular daylighting device (TDD), this product was a compact and leakproof alternative to traditional skylights.
Solatube developed the system that revolutionized the way daylight was brought into a building. Known as a tubular daylighting device (TDD), this product was a compact and leakproof alternative to traditional skylights.
14
Funding: $97.5M
Sealed covers the upfront costs to install energy-saving upgrades like insulation, smart tech, and HVAC to make your house feel like new.
Sealed covers the upfront costs to install energy-saving upgrades like insulation, smart tech, and HVAC to make your house feel like new.
16
Funding: $33.1M
EnergyHub is the consumer face of the Smart Grid, helping home owners reduce energy consumption and save money. EnergyHub produces smart, simple, and cost-effective energy management tools that strengthen the relationship between consumers and utilities and solve the energy problems of today and tomorrow.
EnergyHub is the consumer face of the Smart Grid, helping home owners reduce energy consumption and save money. EnergyHub produces smart, simple, and cost-effective energy management tools that strengthen the relationship between consumers and utilities and solve the energy problems of today and tomorrow.
17
Funding: $25.9M
AeroShield Materials is creating thermally insulating transparent inserts. The inserts are only four millimeters of AeroShield's material and, when placed inside a double-pane window, provides 65 percent more energy efficiency.
AeroShield Materials is creating thermally insulating transparent inserts. The inserts are only four millimeters of AeroShield's material and, when placed inside a double-pane window, provides 65 percent more energy efficiency.
18
Funding: $25M
Franklin Whole Home has developed an integrated battery and control system with artificial intelligence. It is inverter-agnostic, can be used to charge electric-vehicle batteries, and turns homes into microgrids when utility services are down.
Franklin Whole Home has developed an integrated battery and control system with artificial intelligence. It is inverter-agnostic, can be used to charge electric-vehicle batteries, and turns homes into microgrids when utility services are down.
19
Funding: $16.3M
LIFX is the creator of Wi Fi-enable, multi-colored LED lights controllable via a smart device.
LIFX is the creator of Wi Fi-enable, multi-colored LED lights controllable via a smart device.
20
Funding: $15.7M
Zendure is the most durable external battery you can find for your everyday life. Works with most USB powered devices.
Zendure is the most durable external battery you can find for your everyday life. Works with most USB powered devices.
