Top 10 Energy-efficient cooling and air-conditioning startups

Updated: February 08, 2024

Energy-efficient cooling and air-conditioning startups are dedicated to developing innovative technologies and solutions, such as evaporative cooling systems, thermal storage, and advanced compressor designs, that prioritize energy efficiency, reduce greenhouse gas emissions, and improve cooling performance in buildings and industrial processes, contributing to a more sustainable and environmentally friendly approach to cooling and air-conditioning.
1
Country: USA | Funding: $266.6M
BlocPower is offering smart, all electric heating, cooling, and hot water systems to building owners for no money down.
2
Country: USA | Funding: $214.9M
Phononic innovates solid state semiconductor solutions that displace compressors, heat sinks and fans for cooling & heating
3
Country: USA | Funding: $134.5M
Dandelion is an Alphabet spinout that develops geothermal heating, air-conditioning and cooling systems
4
Country: USA | Funding: $132M
Ice Energy develops Ice Bear - thermal energy storage for air conditioning, that is lowering electric bills for businesses and homeowners, and reducing CO2 emissions.
5
Country: China
Broad Group produces clean air-conditioning systems and other sustainability-oriented products to enhance building efficiency. The company uses a patented, non-electric air chiller in its air conditioning design. Instead of using Freon (the traditionally used chiller), the system taps into natural gas to produce a solution that ultimately cools the air.
6
Country: USA | Funding: $83.5M
Sealed covers the upfront costs to install energy-saving upgrades like insulation, smart tech, and HVAC to make your house feel like new.
7
Country: Canada | Funding: $75.1M
BrainBox AI utilizes cloud-based computing, algorithms, and a proprietary process to create an autonomous building technology.
8
Country: Israel | Funding: $42.2M
Nostromo Energy designed a water-based energy storage system that is challenging the current BTM energy storage landscape.
9
Country: Ireland | Funding: $36.9M
Exergyn is a clean-tech company that develops waste heat recovery and conversion technology.
10
Country: USA | Funding: $17.7M
​Infinite Cooling's mission is to provide novel technology to enable water-sustainable thermoelectric power. Its technology reduces water consumption in evaporative cooling tower systems by over 20% by capturing water from cooling tower plumes
11
Country: Germany | Funding: €9.9M
MagnoTherm's cutting-edge energy conversion solutions allow cooling and heating with low pressure systems and is 40% more efficient than current systems.
12
Country: Germany | Funding: €10.5M
MAGNOTHERM builds highly efficient and sustainable cooling systems based on magnetocaloric materials. Instead of climate-damaging or hazardous refrigerant gases, it uses a temperature-active metal in combination with water.
13
Country: USA | Funding: $10.1M
Axiom Exergy transforms the world's cooling systems into intelligent, cloud-connected batteries.
14
Country: USA | Funding: $9.3M
Skycool Systems is improving the efficiency of all cooling systems by harnessing an untapped renewable resource. It's panels turn the sky into a renewable resource and reduce the electricity use of air conditioning and refrigeration systems
15
Country: USA | Funding: $9M
Quilt is building a sleek and AI-driven ductless heat pump system for the home.
16
Country: Canada | Funding: $6.1M
dPoint develops and sells membranes and energy recovery technology that significantly improve the energy efficiency and air quality in buildings. It has adapted its patented fuel-cell heat and humidity exchanger technology for use in energy recovery ventilator systems, which transfer heat and humidity between the intake and exhaust in a residential or commercial building’s ventilation system.
17
Country: India | Funding: ₹360M
Smart Joules offers retrofits for energy-intensive systems like cooling, heating, compressed air and steam in commercial and industrial facilities
18
Country: Germany | Funding: €4.4M
DABBEL controls the energy system in buildings using AI technology, reducing energy consumption and CO₂ emissions up to 40%
19
Country: France | Funding: $4.4M
Koolboks provides a storage technique due to the superior insulation and ice battery technology employed in the design. The sustainable cooling company, which offers accessible cold storage solutions to businesses across Africa
20
Country: UK | Funding: £2.7M
Monodraught manufactures natural lighting, air conditioning and ventilation technology that is now widely used by the likes of IKEA, Ford and Waitrose.
21
Country: Netherlands | Funding: $81.9K
Asperitas creates unique liquid cooling solution for data centers. By adding integration of power and network components, improving cooling physics with a strong focus on design and engineering for usability, Asperitas has come up with a complete and integrated solution which can be effectively utilised in most, if not all situations.
22
Country: Saudi Arabia | Funding: $1.5M
Iyris is creating special, high-tech glass that blocks heat, saves energy and produces electricity.
23
Country: Netherlands | Funding: €1.1M
SoundEnergy develops technology that uses freely available heat; industrial waste heat or solar heat and turns it into cooling. Its THEAC-25 converts the heat directly into cold. The technology is 100% clean: no refrigerants, no electricity, no GWP and no CO2.
24
Country: USA | Funding: $1M
Breezi builds wireless devices that enable homeowners to detect problems with their HVAC systems before they become severe.
25
Country: Serbia
SmartCat develops software (powered by AI) used to optimize heating and cooling devices, i.e. to reduce electricity consumption.
26
Country: USA | Funding: $750K
NETenergy is a thermal energy storage company that is creating a thermal battery designed to offset peak electricity load.
27
Country: USA | Funding: $150k
Hank is enabling service providers and building owners to proactively manage HVAC costs, lower tenant complaints, and strengthen relationships with an AI-powered virtual building engineer.
28
Country: Germany
Coolar’s system powers refrigerators that run independent from the electricity and instead with hot water from solar heat, which makes them close to carbon neutral.
29
Country: India
AMBIATOR works on alternatives to Air Conditioners for the Global South. They've developed the AMBIATOR 5 TR for Hoat and Dry climate zones that uses only 1kW of power vs 7.5 using water as a refrigerant. No compressors and refrigerants make the product eco-friendly, affordable, and have the ability to run on solar power. Future variants are being developed in the Room Air Conditioner segment for multiple climate zones that opens a global market.