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Third Sphere
New York, United States
Third Sphere invests in early‑stage climate‑focused founders building hardware‑enabled solutions, often complemented by software and AI, that address mitigation, resilience, and adaptation challenges. They target pre‑see...
Portfolio
23+
Employees
10+
Founded
2013
AUM
≈ $0.0
Investment focus
Stages
Pre-Seed → Seed
Industries
Software OnlyHardwareArtificial IntelligenceClean Technology
Geographic scope
Global
Fund details
Check sizes
Min: $250.0K
Typical: $500.0K
Max: $2.0M
Sources
Third Sphere
Third Sphere invests in early‑stage climate‑focused founders building hardware‑enabled solutions, often complemented by software and AI, that address mitigation, resilience, and adaptation challenges. They target pre‑seed and seed rounds with initial checks of $250 k–$1 M and provide follow‑on capital up to $2 M to help companies scale in the US and global markets. Their thesis emphasizes techno‑economic efficiency, automation, and transformative impact on planetary systems while delivering strong financial returns.
Portfolio
23+
Employees
10+
Founded
2013
AUM
≈ $0.0
Check Sizes
Min: $250.0K
Typical: $500.0K
Max: $2.0M
Stages
Pre-Seed → Seed
Industries
Software OnlyHardwareArtificial IntelligenceClean TechnologyEnergy
Geographic scope
Global
Sources
Showing 20 of 20 matched portfolio companies
BlocPower utilizes proprietary technology to analyze and finance the upgrade of homes and buildings with energy-efficient, all-electric systems, including heat pumps and weatherization solutions. This approach reduces upfront costs to $0 down, making sustainable upgrades accessible while improving energy efficiency and indoor air quality.
Funding: $1.2M
Rough estimate of the amount of funding raised
Funding: $1.2M
Rough estimate of the amount of funding raised
Blueprint Power utilizes flexible energy capacity management to transform buildings into urban power plants, enabling owners to monetize excess energy while reducing carbon emissions. The company provides analytics, optimization, and monetization services that connect building assets to energy markets, addressing rising energy costs and enhancing operational resilience.
ChargeLab provides a hardware-agnostic software platform that operates EV chargers using the Open Charge Point Protocol (OCPP), enabling seamless management and interoperability across various charging hardware. The solution addresses the need for scalable and efficient infrastructure in the rapidly growing electric vehicle charging market, supporting network operators and fleet managers in optimizing their charging operations.
Funding: $34.3M
Rough estimate of the amount of funding raised
Funding: $34.3M
Rough estimate of the amount of funding raised
CYCLE provides electric utility e-bikes through a flexible monthly subscription model tailored for commercial delivery operations. Their service includes comprehensive maintenance, theft protection with GPS tracking, and options for various cargo and commuter e-bike models. This offering allows businesses to secure reliable, serviced electric fleet vehicles without the burden of ownership overhead.
Funding: $29.9M
Rough estimate of the amount of funding raised
Funding: $29.9M
Rough estimate of the amount of funding raised
Dorothy connects property owners with licensed public adjusters to facilitate the claims process for disaster-related damages, ensuring faster settlements and higher payouts. By leveraging a network of experts, Dorothy addresses the complexities of insurance claims, allowing individuals to recover from disasters without upfront costs.
Funding: $2.1M
Rough estimate of the amount of funding raised
Funding: $2.1M
Rough estimate of the amount of funding raised
EVOLOH sells standardized stack modules, such as the Nautilus TM stack, designed to reduce project delays and cost overruns for Engineering, Procurement, and Construction (EPC) firms. These modules simplify plant design and integration by allowing integrators to utilize standard, widely-available Balance of Plant (BOP) components. This approach results in lower factory and stack costs compared to future competitor projections while maintaining domestic supply chains.
Funding: $20.1M
Rough estimate of the amount of funding raised
Funding: $20.1M
Rough estimate of the amount of funding raised
Flair develops smart vents and wireless thermostats that integrate with existing HVAC systems to provide room-by-room temperature control and airflow management. This technology eliminates temperature imbalances in homes, enhancing comfort while reducing energy consumption.
Gradient develops high-efficiency window heat pumps that utilize a 120V electrical system to provide both heating and cooling solutions without the need for plumbing or electrical upgrades. This technology addresses the significant greenhouse gas emissions from traditional HVAC systems by offering a low-carbon alternative that enhances indoor comfort and supports decarbonization efforts in residential buildings.
Funding: $49.6M
Rough estimate of the amount of funding raised
Funding: $49.6M
Rough estimate of the amount of funding raised
The startup develops an intelligent power distribution system that utilizes a single-class two-wire architecture to deliver data and low-voltage power, facilitating the economical installation of building sensors. This technology enables builders to enhance sustainability and operational efficiency in electrifying buildings.
Radiator Labs manufactures insulated smart radiator covers that optimize heat distribution in steam-heated buildings. Their covers redistribute steam flow from overheated rooms to colder ones, allowing users to control apartment temperatures via a mobile application, thereby increasing comfort and reducing energy waste.
Nevoya operates a fully-electric trucking carrier focused on zero-emissions freight movement for shippers and 3PLs. The company integrates electrification with AI-first operations to enable intelligent automation within logistics. This approach helps customers achieve scalable growth while embracing sustainable, automated transportation solutions.
Funding: $3.0M
Rough estimate of the amount of funding raised
Funding: $3.0M
Rough estimate of the amount of funding raised
Plentify provides intelligent energy management systems that optimize the operation of home appliances, such as geysers and solar systems, by shifting energy use to cheaper, cleaner times. Its devices and platform reduce electricity costs by up to 30% for households and businesses, improving solar self-consumption and minimizing peak demand.
Funding: $4.1M
Rough estimate of the amount of funding raised
Funding: $4.1M
Rough estimate of the amount of funding raised
Renewell Energy repurposes idle oil and gas wells into gravity energy storage systems. This process converts existing infrastructure into a flexible, low-cost energy storage network that reduces greenhouse gas emissions. The technology provides a profitable solution for well owners while delivering zero-emissions electricity to the grid.
Sapient provides an enterprise plug load management system that utilizes machine learning to collect and analyze granular energy data from buildings. This technology addresses the lack of actionable insights for facility and sustainability teams, enabling them to implement targeted energy efficiency measures and achieve carbon reduction goals effectively.
Funding: $20.0M
Rough estimate of the amount of funding raised
Funding: $20.0M
Rough estimate of the amount of funding raised
SHYFT Power Solutions develops IoT and integrated software that enables real-time monitoring and control of distributed energy resources, including solar, batteries, and generators, through a unified dashboard. This technology enhances energy efficiency and operational performance for real estate developers, energy service providers, and homeowners, ultimately reducing energy costs.
Funding: $4.1M
Rough estimate of the amount of funding raised
Funding: $4.1M
Rough estimate of the amount of funding raised
Singularity provides a data-driven software platform that enables utilities and grid operators to accurately measure emissions and optimize decision-making for grid decarbonization. By leveraging precise emissions data, the platform addresses the challenge of reducing carbon footprints in energy systems.
Funding: $5.1M
Rough estimate of the amount of funding raised
Funding: $5.1M
Rough estimate of the amount of funding raised
The startup operates a network of smart vending machines that provide modern personal care essentials while integrating an interactive advertising platform. This technology enables consumers to conveniently access curated products and content on-the-go, addressing the need for immediate access to wellness items in busy environments.
Funding: $11.0M
Rough estimate of the amount of funding raised
Funding: $11.0M
Rough estimate of the amount of funding raised
Swell Energy provides smart grid technology and energy management solutions that enable homeowners and businesses to generate, store, and optimize their energy use through solar power and advanced battery systems. This approach allows users to achieve energy independence and mitigate the impact of rising energy costs while ensuring reliable power supply during outages.
Funding: $120.0M
Rough estimate of the amount of funding raised
Funding: $120.0M
Rough estimate of the amount of funding raised
Unety is a platform that combines underwriting and automation software with a private marketplace to help property owners and sustainability professionals secure funding for eco-friendly upgrades to commercial buildings. By providing tools to compare funding options and assess bankability, Unety streamlines the financing process for projects aimed at enhancing energy efficiency and sustainability.
Funding: $650.0K
Rough estimate of the amount of funding raised
Funding: $650.0K
Rough estimate of the amount of funding raised
Urbio provides a geospatial data management platform that centralizes and analyzes energy data from various sources, enabling utilities to identify optimal locations for solar PV installations and CO₂ hotspots. By automating energy system design with machine learning, Urbio significantly reduces project planning time, allowing users to complete in five minutes what traditionally takes five days.
Showing 3 of 3 unmatched portfolio companies