Join the mission

2150 backs technology companies that aim to shape the sustainable cities of the future.

Aeroseal is a climate tech company on a mission to reduce the world's carbon emissions by 1 gigaton annually. How will we do it? With our leak sealing technologies. Small leaks are a big problem; the ducts and walls in buildings are inadequately sealed by manual solutions. Aeroseal’s technologies - HomeSeal Connect and AeroBarrier Connect - inject a fog of sealant particles into these pressurized spaces. Software tracks the entire process, creating a certificate of completion showing before and after leakage. Aeroseal is one of the fastest-growing clean technology companies in the U.S. and currently has a presence in 27 countries and all 50 states across the U.S. Our technology has sealed nearly 200,000 projects and saved nearly $2 billion in wasted energy. We were recently certified as a Great Place to Work for May 2022-2023. Ninety-three percent of employees at Aeroseal, LLC say it is a great place to work compared to fifty-seven percent of employees at a typical U.S.-based company.

Ampd Energy specializes in designing and manufacturing Energy Storage Systems (ESS) aimed at promoting an emission-free future for industries, particularly in construction. The company is dedicated to facilitating the energy transition by utilizing advanced battery technologies, connectivity, and data science.

AtmosZero is reimagining the boiler room for a decarbonized future. Our Electrified Boiler 2.0 has drop-in applicability across industry, the built environment, and wherever steam is used today.

Biomason develops cement by using microorganisms fed an aqueous solution, which harden to ASTM specification in ambient temperatures.

Blue Frontier has pioneered an innovative smart air conditioning system that operates with ultra-high efficiency. By adjusting the concentration of a salt solution, we achieve cooling with minimal energy consumption. This breakthrough enables our air conditioner to utilize less than half the electricity conventional systems require. Moreover, our A/C can operate without drawing electricity during its functioning, allowing us to shift energy consumption to non-peak periods—when electricity costs are lower and predominantly sourced from renewable energy. Beyond the imperative of energy conservation, our air conditioning system stands out as a superior alternative. Our technology enables the independent regulation of humidity and air temperature, a feat challenging to achieve with traditional A/C systems. Combined with intelligent distributed control systems, this capability ensures a consistent optimal comfort experience—never too hot or too cold, but just right.

CarbonCure Technologies creates, develops, and licenses solutions that consume waste CO2 to make better concrete. It spurs the market shift towards affordable green concrete by enabling concrete manufacturers to convert waste CO2 into solid minerals, locked away as a solid within concrete during manufacturing. It is a green building technology company currently serving concrete product manufacturers in the US and Canada. It offers concrete producers the ability to manufacture green concrete products without compromising on either quality or price. CarbonCure is a retrofit innovation that repurposes CO2 gas from large final emitters as a feedstock in concrete plants. The gas is permanently converted into embedded solid mineral carbonates that yield material, environmental, and production advantages. By enabling concrete manufacturers to consume CO2 into concrete products during manufacturing, the technology differentiates an otherwise traditional commodity concrete product while achieving superior material performance characteristics. In addition to technology, CarbonCure provides demand-pull marketing and environmental reporting/certification services to reinforce its customers’ exclusive competitive positioning. The technology is licensed at a very low CAPEX to concrete producers, generating a recurring revenue stream. CarbonCure Technologies was founded in 2007 and is headquartered in Halifax, Nova Scotia.

We're building the future of public transport — convenient, affordable, connected, and zero-emission. Our goal is to make it easier and more enjoyable to get from A to B with Ember than it is with your own car. We’re a tech company, not a traditional bus operator. We've built a platform that coordinates our entire operation – everything from monitoring vehicles and controlling chargers to selling tickets and calculating ETAs. This allows us to use electric buses more intensively than anyone else in the world, leading to a massive emissions reduction. It also helps us provide a much better passenger experience, with innovative features like demand-responsive stops. We’re still tiny, with two routes and 24 buses. The challenge is to scale this 100x whilst staying lean, increasing efficiency, and delivering an even better product experience. We’ve recently raised equity from some of Europe’s leading climate VCs and are looking for mission-driven individuals who can help take us to the next level.

Hometree is a home energy services company on a mission to accelerate the transition to net zero. By fixing, installing, and financing home energy hardware, we're helping homeowners transition to low-carbon living when they’re ready. Heating is responsible for 14% of all greenhouse gas emissions in the UK. If we're serious about hitting those net zero goals to mitigate the climate emergency, we need to act. The transition has already begun, but it’s a mammoth task and it won’t happen overnight. We know the challenges on the table – with soaring energy costs, expensive heat pumps, and home infrastructure challenges, homeowners are left with many pressing questions - which option should I choose - heat pump or hydrogen boiler? Who will install the equipment - and how will I afford it? That's where Hometree comes in. We understand that homeowners will make the journey at their own pace - and our role is to assist them along the way. Today, we offer boiler and home emergency cover - but we’re rapidly expanding our products and services to install and finance low-carbon home energy hardware, so that we can help steer more UK homeowners to a cleaner and brighter future. Decarbonisation will transform the way we all heat our homes, and this is just the start of the Hometree journey. Let's transform home energy together.

Kelvin is an energy management and electrification platform for radiator-heated buildings. The Radiator Labs system uses smart thermostatic radiator enclosures (COZYS) networked to central heating controls to eliminate fuel waste, reduce building emissions, and improve tenant comfort. Its hybrid electrification platform enables buildings to electrify 60-80% of their space-heating requirements for 20% of the cost of typical electrification alternatives. Buildings outfitted with the Radiator Labs Hybrid Electrification technology can be programmed to optimize heating fuel sources based on energy pricing, building energy letter grades, and carbon fines. The Radiator Labs hybrid electrification technology would enable all radiator-heated buildings to meet NYC 2030 emission caps at a significantly reduced cost. Radiator Labs' technology has been validated by NYSERDA to save 25.5%, on average, in heating costs and was included in the 2019 New York State Technical Resource Manual (TRM). Radiator Labs is a recipient of the 2012 MIT Clean Energy Prize, the 2014 Popular Science Innovation Award, the 2014 Verizon Powerful Answers Award, the 2017 Architizer A+ Award, the 1776 Challenge Cup, and the 2020 New York City Department of Buildings Carbon Neutrality Innovation Challenge. Radiator Labs is also a member of the inaugural cohort of The Clean Fight, powered by NYSERDA and the New Energy Nexus.

Luxwall, Inc., located in Ypsilanti, MI, is a leader in innovative glass solutions poised to drive dramatic change in the built environment with a product portfolio that lowers carbon emissions from building energy use. Luxwall manufactures glass that acts as transparent insulation, providing thermal insulation values that rival fiberglass wall insulation. Luxwall patented technology has the potential to reduce global carbon emissions by more than 0.5 gigaton per year with mass adoption.

Metycle is building the platform to accelerate the global circular flow of secondary metals. At Metycle, we are bringing the $610 billion global scrap metal trading industry into the 21st century. We are building an online platform to connect buyers and sellers of scrap metal internationally, enabling the seamless flow of recycling material to accelerate the global circular flow of secondary metals. Secondary metals are essential building blocks in the global effort to reduce CO2 emissions by up to 95% compared to primary metal production and to make materials available for the global transition towards green energy production.