Fundraising Fox

Third Sphere

Venture capital

New York · Pre-Seed–Series A · 6 people tracked

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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.

Stage
Pre-Seed–Series A
Check
$250K – $1M
HQ
New York, NY, US
Leads rounds
Follows
Instruments
Equity · Debt
Founded
2013
Tracked investments
105

Team · 6 people

from public directories
Shilpi Kumar· Partnerin
Miela Mayer· Venture Partnerin

What they invest in

from 52 of 105 portfolio companies

Hardware ×16Cleantech ×13AI & Machine Learning ×11SaaS ×11Climate Tech ×10Logistics & Supply Chain ×9Mobility & Transportation ×9Energy ×8

HQs:United States×21Germany×2United Kingdom×2France×1

Investments · 105 tracked

founders shown can be your intro path
→ Pre-seed
→ Series B/C
3Am Innovationsin𝕏

Buffalo, US

Ryan Litt(Executive Officer, Director)Katie Sullivan(Executive Officer)Mel Passarelli(Executive Officer, Director)Patrick O'Connor(Executive Officer, Promoter)Tom Dalfonso(Executive Officer)

BoardDaniel J. DiPofi(Director)

Adionatechadionatech.comin

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

Affordable Clean Energy

Startups developing new energy sources and innovative ways to store and use energy to ensure universal access to affordable, reliable, and sustainable energy.

All
Applied Carbonappliedcarbon.comin

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

Arborjoinarbor.comin𝕏

Arbor provides a platform that helps households access renewable electricity at lower costs while reducing energy-related complexity.

ConsumerEnergySaaS

Architizerarchitizer.com

New York, US

David Weber(Executive Officer)Andrew Gaspar(Director)Ari Kushner(Director)Peter Gerber(Executive Officer, Director)Gary Handel(Director)Marc Kushner(Executive Officer, Director)

Avviravvir.io
Blocpower +Moreblocpower.io
Blokableblokable.com

Advanced ManufacturingClyde Hill, US

Aaron Holm(Executive Officer, Director, Promoter)

Blueprint Powerblueprintpower.com
Boweryboweryfarming.com

Bowery Farming uses controlled environment agriculture to grow fresh produce locally in urban centers.

AgTechFoodTech<UNKNOWN>, US

Irving Fain(CEO & Founder)Christopher Livingston(Executive Officer)Andy Wheeler(Director)Darren Thompson(Executive Officer)Sara Robling(Director)Hans Tung(Director)

Builders Patchbuilderspatch.comin𝕏
BuildStreambuildstream.coin𝕏

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

Clean Air, Water, and Food
Clearroadclearroad.io
Climate Action
Climatebaseclimatebase.org
Connected Transportation & Logistics
Coordcoord.co
Covetoolcovetool.comin𝕏

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)

Cyclecycle.ecoin

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

Domatic +Moredomatic.ioin
Dorothyhidorothy.com

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

Dutchlionagdutchlionag.tech
Early-Stage Exitbumblebeespaces.com
Earth Force Technologiesearthforce.ioin

EarthForce develops software and precision sensing technology to optimize wildfire prevention through fuel treatments at landscape scale.

AgTechClimate TechSaaS

EVAeva.xyzin

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

EvolOH +Moreevoloh.comin
Evolve Energy +Moreevolvemyenergy.com
Fire Domefire-dome.comin

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

Firmusfirmus.aiin𝕏
Flair +Moreflair.co
Focal +Morebeamcomfort.com
Gisualgisual.comin
Gradient +Moregradientcomfort.com
Greenqgreenq.gq
HAAS Alerthaasalert.comin

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.

IoTLogistics & Supply ChainMobility & TransportationSaaSChicago, US

Cory Hohs(Co-founder & CEO)Noah Levens(Co-founder)Jigar Patel(Co-founder)

Industry, Innovation & Infrastructure
Joinborrowjoinborrow.comin

Borrow offers online electric vehicle subscriptions with 3- or 6-month terms, handling reservation, credit check, insurance connection, and touchless delivery.

ConsumerMarketplacesMobility & Transportation

Kelvin Systems, Inc.kel.vinin

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

Kiftkift.com

Kift was a service focused on dynamic communal living centered around van life and shared houses/caravans, aimed at building community for people seeking an alternative lifestyle.

ConsumerSocial

Kiwikiwi.kiin

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

Kiwi Campuskiwibot.comin𝕏

Kiwibot develops autonomous delivery robots that operate across multiple countries and continents.

HardwareLogistics & Supply ChainRoboticsMiami, US

Sergio Pachon(Executive Officer, Director)Eduardo Iniguez(Executive Officer)Andres Felipe Chavez(Executive Officer, Director)Joseph Huang(Director)Judah Longgrear(Executive Officer, Director)Andres Felipe Chavez Cortes(Executive Officer, Director)

Limeloopthelimeloop.comin

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 Chain

Livestorieslivestories.com

FORWARD is a program administration platform for governments and nonprofits that combines resident access, intake, eligibility, payments, participant engagement, and outcome reporting into one audit-ready system.

GovTechImpact & Social GoodSaaS

Loamistloamist.com

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

Logchecklogcheck.comin
Loopridewithloop.com

Loop provides affordable car insurance for underserved communities using equitable pricing that excludes credit scores, education, and occupation from rate calculations.

InsurTech

Lunewave Inc.lunewave.comin𝕏

Lunewave develops cutting-edge antenna and sensor technology for automotive advanced driver assistance systems, autonomous vehicles, wireless communications, robotics, and drones.

AI & Machine LearningHardware

Mark43mark43.comin𝕏

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)inEdward Davis(Director)Larry Bohn(Director)Alex Finkelstein(Director)

Merinoenergymerinoenergy.comin

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

Metalmarkmetalmark.xyzin𝕏

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

Milesgetmiles.com
Millmill.com

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 TechConsumerHardware

Matt Rogers(Founder & CEO)

Mobilyze +Moremobilyze.ai
Near Space Labsnearspacelabs.com

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

Frequently asked questions

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.

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

Clocktower Ventures

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.

$100K – $20M
Contour Venture Partners

Contour Venture Partners is a New York City-based seed stage venture capital firm founded in 2005, focused on the NYC technology ecosystem.

Both backed · 2
PartsimonyLogcheck
$500K – $2M
Bold Capital Partners

BOLD Capital Partners is a venture firm backing entrepreneurs across a range of technical and scientific domains, with a dedicated BOLD Longevity Growth practice.

UpHonest Capital

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.

Both backed · 1
Early-Stage Exit
$50K – $1M
AlleyCorp

AlleyCorp is a firm of technologists, investors, and entrepreneurs that both builds and invests in transformative companies.

$1M – $5M
Construct Capital

Construct Capital is an early-stage venture capital firm backing founders that apply technology to modernize foundational industries such as manufacturing, logistics, defense, and energy.

Both backed · 1
ChargeLab +More
$2M – $6M
Notation Capital

Notation Capital is a pre-seed/seed-stage venture firm that positions itself as a community of founders, advisors, LPs and network members supporting portfolio companies.

Both backed · 1
ChargeLab +More
$250K – $750K
Govtech Fund

Govtech Fund is a venture capital firm that invests in startups modernizing the operations of government.

Both backed · 1
Kraken

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

True Ventures is an early-stage venture capital firm that writes the first check for founders and supports them through subsequent stages of growth.

$500K – $3M
SOSV

SOSV is a deep tech venture capital firm that makes first-check pre-seed investments and follow-on rounds in startups focused on human and planetary health, providing lab space and hands-on support at its US locations.

$30K – $550K
Stellar Capital

Stellar Capital invests in founders building software, internet, and technology companies.

10 more co-investors

Inovia CapitalSocial LeverageGiant Ventures Global LlpStealth CapitalRoot Ventures Manager, LlcBlackhorn VenturesHighline 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.

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