New York · Pre-Seed–Series A · 4 people tracked
Investment thesis
Third Sphere invests early-stage capital to upgrade systems it views as broken or overlooked when it comes to responsibility toward people, businesses, and the public. Rather than limiting its focus to carbon emissions reduction, the firm targets a wide range of sectors, from infrastructure to supply chains, with the aim of securing a more resilient future. The firm emphasizes climate and systemic improvements and highlights the growing importance of corporate venture partnerships for climate-tech founders.
Source: firm website, verified Aug 3, 2026.
Team · 4 people
from public directories
What they invest in
from 77 of 105 portfolio companiesCleantech ×22Hardware ×22AI & Machine Learning ×21Climate Tech ×18Energy ×18SaaS ×18Mobility & Transportation ×12IoT ×11
HQs:United States×37Germany×2United Kingdom×2Brazil×1Canada×1Switzerland×1
Investments · 105 tracked
founders shown can be your intro pathBy year:2021 · 22020 · 12018 · 12015 · 15 dated
3AM Innovations builds incident management technology for emergency response and event coordination, including a mobile app and deployable field kits.
Defense TechHardwareSaaSBuffalo, US
Katie Sullivan(Executive Officer)Mel Passarelli(Executive Officer, Director)inRyan Litt(Executive Officer, Director)Patrick O'Connor(Executive Officer, Promoter)Tom Dalfonso(Executive Officer)
BoardDaniel J. DiPofi(Director)
Co-investorsLaunch NYOUTBOUND CAPITALWNY Impact Investment Fund
Adiona provides FlexOps, a route optimization platform that uses AI and machine learning algorithms to plan and optimize delivery routes, depots, shifts, and parking for fleet operators.
AI & Machine LearningLogistics & Supply ChainSaaS
Startups developing new energy sources and innovative ways to store and use energy to ensure universal access to affordable, reliable, and sustainable energy.
Applied Carbon develops technologies to regenerate soil and sequester atmospheric carbon for climate change mitigation and soil health improvement.
AgTechCleantechClimate Tech
Jason Aramburu(CEO + Co-Founder)inMorgan M. Williams(COO + Co-Founder)in
Co-investorsAutodesk FoundationCongruent VenturesS2G InvestmentsTO VCWireframe VenturesZag Capital+1 more
Arbor provides a platform that helps households access renewable electricity at lower costs while reducing energy-related complexity.
ConsumerEnergySaaS
Co-investors645 VenturesCity LightFirst Round CapitalFJ LabsLowercarbon CapitalObvious Ventures+3 more
New York, US
Marc Kushner(Executive Officer, Director)David Weber(Executive Officer)Peter Gerber(Executive Officer, Director)
BoardAndrew Gaspar(Director)Ari Kushner(Director)Gary Handel(Director)
Co-investorsAugust Capital
Co-investorsMetaProp VenturesModerne VenturesStacked CapitalTekfen VenturesMetaPropTrust Ventures
BlocPower provides construction management and financing for energy-efficient building upgrades, serving building owners, developers, and communities across the United States.
CleantechClimate TechPropTech
Co-investorsAmerican Family Insurance Institute for Corporate and Social ImpactCleo CapitalMaC Venture CapitalOperator CollectivePulse FundVoLo Earth Ventures
Advanced ManufacturingClyde Hill, US
Aaron Holm(Executive Officer, Director, Promoter)
Co-investorsKnockout CapitalVU Venture PartnersLAUNCH
Turns buildings into power plants.
New York, US
Robyn Beavers(Executive Officer, Director)Jonathan Jaffe(Director)
Co-investorsCongruent VenturesFifth WallMetaProp VenturesMoxxie VenturesMetaPropTrust Ventures
Bowery Farming uses controlled environment agriculture to grow fresh produce locally in urban centers.
AgTechFoodTechNew York, US
Irving Fain(CEO & Founder)Christopher Livingston(Executive Officer)Darren Thompson(Executive Officer)
BoardAndy Wheeler(Director)Sara Robling(Director)Hans Tung(Director)in
Co-investorsHomebrewRed Swan VenturesRRE VenturesSV AngelFirst Round CapitalGeneral Catalyst+3 more
Builders Patch is a software platform for managing the multifamily housing finance process, covering deal application intake, document organization, due diligence, in-context communication among deal parties, AI-generated deal documents and reports, and asset management.
FintechPropTechSaaSMount Kisco, US
Kanan Ajmera(Founder)
Co-investorsThe Artemis FundUrban InnovationTenOneTen Ventures
BuildStream provides candidate sourcing and data research services for recruiting teams, using multiple data sources and manual verification to compile verified contact lists that reduce reliance on multiple software tools.
Construction TechFintechHR TechMarketplacesPropTechLondon, GB
Terry Clarke(Founder)inDavid Polonski(Founder)in
Co-investorsY CombinatorVentureSouq
Robotics furniture startup designed to change the way of living.
Co-investorsCanaan PartnersLoup VenturesUpHonest CapitalVU Venture PartnersBloomberg BetaIIMA Ventures+3 more
ChargeLab develops EV charging management software and a programmable charging platform used by EV drivers, installers, and software developers.
EnergyMobility & TransportationSaaSEtobicoke, CA
Zak Lefevre(Cofounder)Zak L.(Founder)in
Co-investorsConstruct CapitalCreative Destruction Lab (CDL)Expansion Venture CapitalKing River CapitalMaple VCNotation Capital+1 more
Co-investorsSpace Capital
Co-investorsAPA Venture Partners
Co-investorsTrucks VC
cove is an architecture firm that uses proprietary AI—drawing on a database of building codes, FEMA data, and cost analytics—to help real estate developers and owners with conceptual design, site master planning, permitting, code compliance, and cost estimating.
AI & Machine LearningConstruction TechPropTech
Sandeep Ahuja(Co-founder)Patrick Chopson(Co-founder)
Cycle.eco builds emission-free local transportation solutions for urban areas, focusing on decarbonizing city transport and replacing polluting vehicles and congestion.
Circular EconomyClimate TechLogistics & Supply ChainMobility & TransportationBerlin, DE
Luis Orsini-Rosenberg(Founder)
Co-investorsHeartfelt CapitalTechstarsVisionaries Club
Domatic offers a low-voltage wiring system that combines power and data into a single connection for building fixtures, enabling plug-and-play installation, automatic provisioning, and cloud-based analytics of building performance.
Construction TechIoTPropTech
Co-investorsBrick Mortar VenturesCatapult Ventures
Dorothy is a real-time weather and incident intelligence platform that tracks storms and other hazards and enriches affected addresses with property data, imagery, and loss history.
Climate TechData & InfrastructureInsurTech
Co-investorsKeiki CapitalKnoll VenturesMission One CapitalPortfoliaStellifiIndicator Ventures+1 more
EarthForce develops software and precision sensing technology to optimize wildfire prevention through fuel treatments at landscape scale.
AgTechClimate TechSaaS
Co-investorsAlleyCorpAmerican Family VenturesBold Capital PartnersClocktower VenturesKeiki CapitalZORA+2 more
EVA builds autonomous systems infrastructure for drones and robots serving multiple industries including logistics, energy, healthcare, agriculture, and security.
AI & Machine LearningLogistics & Supply ChainRoboticsMazamet, FR
Co-investorsTechstarsCascade Seed FundFullCircleStout Street Capital
Evoloh operates high-throughput factories that manufacture electrolyzer stacks, sold as its Nautilus stack module to EPCs and project developers building hydrogen plants.
Advanced ManufacturingCleantechEnergy
Jimmy Rojas(Founder)
Co-investorsBaruch Future VenturesJuniperSafar PartnersThe Engine Ventures
FireDome offers an autonomous wildfire defense system that combines an AI-guided launcher, eco-friendly fire-retardant smart capsules, and thermal and visual sensors to detect, suppress, and create protective firebreaks around properties.
AI & Machine LearningClimate TechHardware
Co-investorsATOORO FUNDCaesar Ventures
Firmus provides an AI platform that uses computer vision to analyze construction drawings, detecting errors, scope gaps, missing information, and discrepancies to reduce preconstruction risk.
AI & Machine LearningConstruction TechSaaS
Co-investorsfresh.fundNavitas CapitalPi LabsBlackstoneNVIDIA
Flair makes smart vents, pucks, and controls along with its hvacOS software platform to manage home heating and cooling on a room-by-room basis, including for central HVAC systems, mini-splits, window ACs, boilers, and electric baseboards.
CleantechHardwareIoTSan Francisco, US
Kenny Tay(Founder)
Co-investorsSkyview Ventures
Gisual provides an API that delivers near real-time commercial power outage data into network operations tools, letting telecoms and managed service providers automatically triage outage issues, attribute problems to power rather than network, and avoid unnecessary truck rolls.
Data & InfrastructureEnergySaaS
Co-investorsInvariantes Fund
Gradient manufactures plug-in 120V window heat pumps that provide cold-climate heating and cooling, along with the Nexus energy control software that coordinates distributed units.
CleantechClimate TechHardwareSan Francisco, US
Co-investorsAt One VenturesAzolla VenturesClimate InvestmentISVNew Climate VenturesSafar Partners+1 more
Greenq is a Brazilian company that builds waste collection tracking technology for municipal services.
Climate Tech
Edy CandelMoshe PelegShlomy Ashkenazy
Co-investors500 GlobalFusion VC
HAAS Alert operates a vehicle-to-everything (V2X) platform that delivers real-time safety alerts to drivers about roadway hazards, emergency vehicles, and roadside workers.
AI & Machine LearningIoTLogistics & Supply ChainMobility & TransportationSaaSChicago, US
Cory Hohs(Co-founder & CEO)Noah Levens(Co-founder)Jigar Patel(Co-founder)
Co-investorsDoon CapitalMichigan Capital NetworkStacked CapitalTechstarsThree Tree VenturesVolition Capital+1 more
Borrow offers online electric vehicle subscriptions with 3- or 6-month terms, handling reservation, credit check, insurance connection, and touchless delivery.
ConsumerMarketplacesMobility & Transportation
Kelvin builds products to modernize legacy radiator-heated buildings, including a smart radiator cover (the Cozy) and an Adaptive Electrification platform that replaces window ACs with smart heat pumps.
CleantechEnergyPropTech
Co-investorsCarbonDorm RoomMetaPropMetaProp VenturesPartnership Fund for NYCRed Bear Ventures
KIWI provides a digital access control and locking system for buildings, allowing property managers to manage doors and users via an online portal and let residents, service providers and contractors open doors with an app or transponder.
HardwareIoTPropTech
Kiwibot develops autonomous delivery robots that operate across multiple countries and continents.
HardwareLogistics & Supply ChainRoboticsMiami, US
Sergio Pachon(Executive Officer, Director)Andres Felipe Chavez(Executive Officer, Director)Andres Felipe Chavez Cortes(Executive Officer, Director)Eduardo Iniguez(Executive Officer)Judah Longgrear(Executive Officer, Director)
BoardJoseph Huang(Director)
Co-investorsClub Italia Investimenti 2Innosphere VenturesKarma VenturesPi CampusTYLT VenturesMAGIC Fund
LimeLoop provides premium reusable shipping mailers that replace single-use cardboard boxes and return automatically to the merchant for reuse up to 20+ times.
Circular EconomyE-commerceLogistics & Supply ChainEmeryville, US
Ashley Etling(Executive Officer)
Co-investorsCity LightJohnson Venture PartnersKnockout CapitalREFASHIOND VenturesSilicon Road Ventures
Loamist provides AI workflows that examine letters of credit and supporting trade documents against UCP 600, ISBP, and bank-specific rules to flag discrepancies, and audits freight invoices for billing errors.
AI & Machine LearningFintechLogistics & Supply Chain
Co-investorsVoLo Earth Ventures
LogCheck is a mobile tool for commercial real estate building maintenance staff to track routine inspections, preventive maintenance tasks, and meter readings in the field.
PropTechSaaS
Co-investorsContour Venture PartnersMetaProp VenturesMetaProp
LOOP provides car insurance aimed at underserved and working-class communities, using a pricing model that excludes credit score, education, and occupation from rate calculations.
FintechImpact & Social GoodInsurTech
Carey Anne Nadeau(Co-Founder & Co-CEO)
Co-investorsBackstage CapitalFoundryNew Voices
Lunewave develops cutting-edge antenna and sensor technology for automotive advanced driver assistance systems, autonomous vehicles, wireless communications, robotics, and drones.
AI & Machine LearningHardware
John Xinin
Co-investorsblue 9 capitalBMW i VenturesFoothill VenturesFraser McCombs CapitalProeza Ventures
Mark43 creates software for public safety and law enforcement agencies.
AI & Machine LearningEnterprise SoftwareGovTechSaaSNew York, US
Scott Crouch(Co-Founder & Chairman)inMatt Polega(Co-Founder, President, Managing Director UK and Head of Marketing, Communications & Enablement)inFlorian Mayr(Co-Founder & Vice President)in
BoardLarry Bohn(Director)inAlex Finkelstein(Director)inEdward Davis(Director)
Co-investorsAmplo VenturesAvenir Growth CapitalBreyer CapitalEQUIAMGovtech FundPROOF+4 more
Merino Energy makes a redesigned heat pump for home heating and cooling that plugs into a standard 120V outlet and installs without outdoor units or multi-day retrofits.
CleantechEnergyHardware
Co-investorsDangerous Ventures
Metalmark provides indoor environmental quality monitoring and an AI-enabled interpretation layer that helps organizations assess infection-risk seasons, smoke readiness, and site conditions, then prioritize actions and verify improvement.
AI & Machine LearningCleantechHardware
Redwood City, US
Jigar Shah(Founder)in
Co-investorsSony Ventures CorporationSynapse PartnersTransLink Capital
Mill makes an electric food waste recycler for homes that reduces food scraps by 80% and converts them into nutrient-rich grounds for gardens or farms.
Climate TechConsumerHardwareSan Bruno, US
Matt Rogers(Founder & CEO)Harry Tannenbaum(Founder)inMatthew Rogers(Founder)in
Co-investorsBreakthrough Energy VenturesBuckhill CapitalCleo CapitalEnergy Impact PartnersGigascale CapitalGV (Google Ventures)+7 more
Near Space Labs provides high-resolution 7cm geospatial imagery captured from stratospheric altitudes, serving government, utilities, insurance, and environmental monitoring applications with frequent data refresh cycles and wide-scale coverage.
Climate TechData & InfrastructureSpace Tech
Rema Matevosyan(Founder & CEO)in
Co-investorsAt One VenturesBlackhorn VenturesBold Capital PartnersCrosslink CapitalDraper AssociatesGreen Egg Ventures+7 more
Nevoya is a fully-electric trucking carrier that moves freight for shippers and third-party logistics providers, combining zero-emission vehicles with AI-driven operations.
CleantechClimate TechLogistics & Supply ChainMobility & TransportationColton, US
Sami Khan(Executive Officer, Director)inThomas Atwood(Founder)in
BoardJohn Verdon(Director)inTom Atwood(Director)in
Co-investorsCool Climate CollectiveFloating PointKeiki CapitalLMNT VenturesLOWERCARBONLowercarbon Capital+4 more
One Concern provides a data platform that quantifies physical climate risk and translates it into financial risk metrics, differentiating properties and businesses by their exposure to infrastructure-related business interruptions such as power outages and supply chain disruptions.
AI & Machine LearningClimate TechInsurTechMenlo Park, US
Nicole Hu(Founder)
Co-investorsAmerican Family Insurance Institute for Corporate and Social ImpactAmplo VenturesGeodesic CapitalSozo Ventures
Pallon uses artificial intelligence, machine learning, and computer vision to detect, localize, and measure defects in sewer and manhole inspection footage.
AI & Machine LearningConstruction TechSaaS
Co-investors360 Capital
Partsimony provides an intelligent supply chain platform that helps hardware companies manage distributed manufacturer networks through data-driven insights and customizable supply chain management tools.
Advanced ManufacturingAI & Machine LearningCleantechFintechHardwareBrooklyn, US
Richard Mokuolu(Founder)in
Co-investorsContour Venture PartnersTechstarsREFASHIOND Ventures
Perl Street provides financial infrastructure and software for renewable energy investors and developers to manage capital deployment, compliance, and operations related to clean energy projects, particularly those funded through the Greenhouse Gas Reduction Fund.
B2B MarketplacesCleantechClimate TechFintechSaaSAustin, US
Tooraj Arvajeh(Founder)inArvind Vermani(Founder)
Co-investorsFourth RealmGarage CapitalKeiki CapitalMS&AD VenturesY CombinatorClimate Capital
Personal site of Trương Vĩnh Phúc (Phuc Vinh Truong), publishing essays and books on his "Information Force Theory," covering physics, mathematics, AI safety, and philosophy.
AI & Machine LearningMedia & Entertainment
Trương Vĩnh Phúc(Founder)
Co-investorsJuniperAiSprouts VC
Plentify makes intelligent controllers for home energy systems: HotBot manages geysers to reduce electricity use and detect leaks, while SolarBot optimizes solar and battery systems for greater self-consumption.
CleantechEnergyIoTCape Town, ZA
Jon Kornik(Founder)
Co-investorsE3 CapitalElevation VenturesSatgana
Wild makes an electric powertrain kit—comprising a Power Box, Smart Hitch, 120 kW motor, and bi-directional battery—that trailer manufacturers integrate into their products to create self-propelled, connected trailers with reduced tow-vehicle load.
CleantechHardwareMobility & Transportation
Qucit builds Qucit Bike, a logistics optimization software with a manager dashboard and a mobile app for field operators that automates fleet deployment, rebalancing, broken-bike collection, battery swaps, and station maintenance.
Logistics & Supply ChainMobility & TransportationSaaS
Rachio makes smart irrigation controllers that automatically adjust watering based on weather, season, and local conditions to reduce outdoor water waste for residential properties.
Climate TechConsumerHardwareIoTDenver, US
Franz Garsombke(Executive Officer, Director, Promoter)Christopher M. Klein(Executive Officer, Director, Promoter)Christopher Klein(Executive Officer, Director)Chris KleinMatt ReismanGary Stone(Executive Officer)
Co-investors500 GlobalArborview CapitalBLH Venture Partners, LLCEastside PartnerseLab VenturesMetaProp+3 more
Renewell Energy develops a patented "Gravity Well" system that converts idle oil and gas wells into gravity-based energy storage, generating zero-emissions electricity while providing a method to clean up abandoned wells.
CleantechClimate TechEnergy
Stefan Streckfus(CTO)
Resonant Link Inc. developed wireless power technology and is no longer operating as an active business, now managing and licensing its patent portfolio for non-medical wireless power.
Deep TechEnergyHardwareMedical DevicesShelburne, US
Grayson Zulauf(Executive Officer, Director)Aaron Stein(Director)
BoardOrin Hoffman(Director)Shilpi Kumar(Director)in
Co-investorsISVWIND VenturesScout VenturesThe Engine Ventures
Revivn manages the end-of-life process for company hardware, offering device pickups, data sanitization (meeting DOD and NIST 800-88 standards), asset tracking, and compliance reporting through an app and API integrations.
Circular EconomyEnterprise SoftwareFintechSaaS
Anthony Serina(Founder)inJohn Fazzolari(Founder)in
Co-investors500 Global
Applying a fundamental mathematical insight to the problem of turbulence.
Co-investorsThe Engine Ventures
RoadBotics' road assessment technology now operates as part of Michelin Mobility Intelligence, offering automated evaluation of road conditions from collected imagery.
Pittsburgh, US
Mark DeSantis(Executive Officer, Director)Kenneth Durrett(Executive Officer)
BoardMark L. Joseph(Director)Jack Klinck(Director)inJordan Jacobs(Director)in
Co-investorsHyperplane Venture CapitalNeer Venture PartnersRadical VenturesStout Street Capital
Sapient Industries provides advanced energy submetering and monitoring systems for commercial and residential properties, helping facility managers track energy consumption, reduce costs, and achieve decarbonization goals.
EnergyEnterprise SoftwareIoTPhiladelphia, US
Martin Koch(CEO, President, Secretary and Treasurer, Director.)
BoardNirmal Roy(Director)Samuel Parks(Director)Paul-Marie Brisson(Director)
Co-investorsSfventures Group LLCTech Square VenturesBalnord Sp. z o.o.FORWARD.one
Digital forms software for local government with integrated online payments; acquired by Kofile.
Co-investorsGovtech FundRemarkable VenturesSJF Ventures
Sention provides battery analytics using ultrasound imaging, data fusion, and AI to give visibility into battery internals for researchers, manufacturers, and operators.
AI & Machine LearningDeep TechEnergy
Co-investorsEndgame CapitalFuture Planet CapitalTwin Path VenturesUK Innovation & Science Seed Fund
Shyft Power Solutions is an energy technology company that builds digital metering, operating, and revenue management software for utility companies and power service providers in emerging markets.
CleantechEnergyIoTSaaS
Co-investorsCapital InnovatorsSWAN Impact NetworkElevate Capital
Singularity Energy provides tools for measuring grid emissions and supporting decision-making around decarbonization.
CleantechClimate TechEnergyCambridge, US
Wenbo Shi(Executive Officer, Director)in
Co-investorsEnergy Impact PartnersSpero Ventures
Skycatch provides spatial data capture, processing, and analysis solutions for mining and industrial operations, using AI capabilities to generate near-real-time digital twins and deliver operational insights.
AgTechAI & Machine LearningData & InfrastructureIrving, US
Christian Sanz(Founder & CEO)Mark Heynen(Executive Officer)Sam Miller(Executive Officer)
BoardRichard Levandov(Director)B. Paul Santos(Director)Ram Shriram(Director)
Co-investorsADB VenturesAkkadian VenturesBee PartnersEntrée CapitalFf Venture CapitalMind the Seed - MTS Fund+7 more
Sonic Fire Tech develops a patented acoustic (infrasound) fire suppression system that installs through concealed ceiling ducting and extinguishes fires using sound waves rather than water, foam, or chemicals.
Deep TechHardwarePropTech
Swell Energy provides residential solar generation and home battery storage, and networks together customers' systems into virtual power plants in partnership with US utilities.
CleantechEnergyIoT
Co-investorsSoftBank Vision Fund
Swell Cycle Surfboards designs performance surfboards engineered with tuned flex and rebound for responsiveness in real surf conditions.
ConsumerHardwareSports Tech
Co-investorsSanta Cruz Venture
Thalo builds hardware and AI software for HVAC contractors, offering a connected diagnostic tool for sensor-verified line set commissioning and a non-invasive device that continuously monitors compressor health, refrigerant behavior, and system performance.
AI & Machine LearningHardwareIoT
Co-investorsGigascale CapitalVery Serious VenturesVirta VenturesRefactor CapitalSuffolk Technologies
Therma provides mechanical contracting services including HVAC, plumbing, and energy solutions for mission-critical and commercial buildings.
Construction TechEnergy
Joe Parisi(Founder)Nicki Parisi(Founder)
Co-investorsBarrel VenturesClocktower VenturesTech Square Ventures
The Shellworks makes VIVOMER, a compostable biomaterial produced by microbial fermentation of agricultural and industrial plant waste, that performs like conventional plastic but breaks down in soil without leaving microplastics.
Circular EconomyCleantechNew Materials
Toggle provides real-time quality control and part inspection for custom fabrication using computer vision to automatically identify and measure parts against CAD libraries.
Advanced ManufacturingAI & Machine LearningHardware
Co-investorsBlackhorn VenturesGlobal BrainPoint72 VenturesPT1Tribeca Venture Partners27V (Twenty Seven Ventures)
Unety provides a platform focused on sustainable finance for buildings, covering projects such as water systems, HVAC, lighting, landscaping, on-site renewable energy generation, insulation upgrades, and resilience improvements.
CleantechFintechPropTech
Upshift offers a car subscription service for low-mileage city drivers, with monthly plans of 4, 8, or 12 driving days and rollover of unused days.
Climate TechConsumerMarketplacesMobility & Transportation
Ezra Goldman
Co-investors500 GlobalKnockout Capital
Urbint provides an AI-powered platform that helps energy and utility companies predict operational risks through emergency preparedness and response, worker safety, and damage prevention (811 ticket risk-profiling to prevent excavation strikes).
AI & Machine LearningEnergySaaS
Corey Capasso(Founder)in
Co-investorsBlue Bear Capital PartnersClimate InvestmentEnergize CapitalEnergy Impact PartnersMagma PartnersMetaProp Ventures+5 more
Urbio provides an AI-powered software platform for planning and designing district heating networks, combining curated geospatial energy data, a digital twin, scenario design, and automated reporting.
AI & Machine LearningCleantechEnergy
Co-investorsContrarian VenturesKickstart InnovationFounderful
Versatile.ai serves the construction industry, though specific product details are not provided on this "Who We Are" page.
Construction TechLos Altos, US
MEIRAV OREN(Executive Officer, Director, Promoter)DANNY HERMANN(Executive Officer, Director)
BoardNIKITAS KOUTOUPES(Director)inGAD TOREN(Director)
Co-investorsBosch VenturesConductive VenturesEntrée CapitalInsight PartnersRobert Bosch Venture CapitalRoot Ventures Manager, Llc+1 more
Wasted provides portable toilet rentals that use sustainable servicing methods and products aimed at lowering environmental impact.
Circular EconomyCleantech
Wonderfil operates Smart Refill Stations that dispense liquid and cream products such as soap, shampoo, conditioner, and laundry detergent with real-time measurement and no weighing required.
Circular EconomyHardwareRetail Tech
Co-investorsSanta Cruz Venture
Wright Electric develops high-power-density power systems and inverter generators for defense, aerospace, commercial, and industrial applications.
Advanced ManufacturingClimate TechDefense TechEnergyHardwareSpace TechAlbany, US
Jeff Engler(Founder/CEO)inDoug Griswold(Founder)in
Co-investorsEvergreen Climate InnovationsY Combinator
Xtelligent develops next-generation traffic signal control technology using control algorithms, real-time data streams, and machine learning to enable adaptive, multimodal, and cooperative management of signalized intersections for cities.
AI & Machine LearningGovTechMobility & Transportation
Co-investorsCongruent VenturesWireframe Ventures
Exits · 1
IPOs and acquisitions across the tracked portfolioSeamlessDocsacq. by Kofile
Portfolio news
latest coverage across their companiesFirmus · finsmes.com · Aug 10, 2026
Bumblebee · entrepreneur.economictimes.indiatimes.com · Jul 31, 2026
Versatile · manitobacooperator.ca · Jul 18, 2026
Near Space Labs · fortuneindia.com · Jul 17, 2026
Cycle · ibjonline.com · Jul 17, 2026
Sapient Industries +More · marketingdive.com · Jul 16, 2026
Mill · marketbeat.com · Jul 15, 2026
Frequently asked questions
- How many investments has Third Sphere made?
- Third Sphere has 30 tracked investments.
- What stage does Third Sphere invest at?
- Third Sphere invests at the Pre-Seed, Seed, Series A stages.
- What is Third Sphere's typical check size?
- Third Sphere typically writes checks of $250K – $1M.
- What sectors does Third Sphere focus on?
- Third Sphere focuses on AI & Machine Learning, Circular Economy, Cleantech, Climate Tech, Energy, Hardware, Impact & Social Good, Logistics & Supply Chain, Mobility & Transportation, Sector Agnostic.
- Where is Third Sphere located?
- Third Sphere is headquartered in New York, US.
- Does Third Sphere lead rounds?
- Third Sphere typically participates in rounds rather than leading them.
- Who does Third Sphere co-invest with?
- Third Sphere most often shares deals with MetaProp Ventures, Safar Partners, 645 Ventures, among 49 tracked co-investors.
Media · Podcasts & interviews
featuring the team#176 Green Premium, Price of Inaction, Big Oil, EV Demand, & More w/ Shaun Abrahamson (Third Sphere)
CleanTechies · Shaun Abrahamson
#136 The Climate Data Moat, Escalator of Impact and Scale, & More w/ Shaun Abrahamson (Third Sphere)
Silas Mähner · Shaun Abrahamson
Co-investors · 22
Root Ventures is a San Francisco-based deep tech seed fund led by engineers, focusing on leading initial funding rounds for founders pursuing new technical opportunities.
Clocktower Ventures is the fintech-focused venture practice of Clocktower Group, backing technology companies transforming financial services across consumer and enterprise. It is based in Santa Monica, California.
Contour Venture Partners is a New York City-based seed stage venture capital firm founded in 2005, focused on the NYC technology ecosystem.
Blackhorn Ventures is a venture capital firm backing startups that apply data, AI, and robotics to major industries considered vital to national security and economic stability.
Bold Capital Partners is a venture capital firm based in Los Angeles, California. Its portfolio includes companies such as Insilico Medicine, which applies artificial intelligence to biomarker development and drug discovery, reflecting a focus on frontier technologies in areas like AI-driven life sciences.
Govtech Fund is a venture capital firm that invests in startups modernizing the operations of government.
UpHonest Capital is a Silicon Valley-based investment firm founded in 2017 that supports cross-border entrepreneurship and investment between China and the United States, and runs media, scout, and incubation programs.
AlleyCorp is an early-stage investor and incubator based in New York that builds and backs companies across enterprise, consumer, healthcare, and deep tech sectors.
Construct Capital is an early-stage venture capital firm backing founders rebuilding foundational industries such as manufacturing, logistics, defense, and energy.
Notation Capital writes the very first check for technical founding teams at the moment of company creation, treating pre-seed as a distinct risk profile and working "in the trenches" with founders on "day 0:00" rather than just writing smaller checks. The firm operates with unusual transparency by publishing its internal operating manual on GitHub and running a podcast that interviews LPs to demystify venture fund underwriting, while also running a free, equity-free program for future founders in underestimated ecosystems beyond Silicon Valley.
Kraken is a cryptocurrency exchange operating since 2011, offering crypto trading along with related services such as margin trading, staking, derivatives, and (in the US) equities brokerage through Kraken Securities LLC.
True Ventures is a venture capital firm established in 2005 that focuses on early-stage technology companies, with operations based in Silicon Valley.
▶10 more co-investors
SOSVStellar CapitalInovia CapitalSocial LeverageGiant Ventures Global LlpStealth CapitalHighline BetaClosed Loop PartnersNCT VenturesClimentum Capital
Firms observed investing alongside Third Sphere, from public investor directories. Shared companies are the overlap with Third Sphere's recorded portfolio.
Similar investors
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Avesta Fund is an early-stage venture firm backing software-first companies solving bottlenecks across compute, energy, and industrial infrastructure in the AI era.