Counteract
Venture capitalLondon · Pre-Seed–Series A
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What they invest in
from 16 of 21 portfolio companiesClimate Tech ×13Cleantech ×11New Materials ×7Deep Tech ×5AI & Machine Learning ×3AgTech ×2Circular Economy ×2Construction Tech ×2
HQs:United States×5United Kingdom×3Australia×1Canada×1Germany×1
Investments · 21 tracked
founders shown can be your intro pathBy year:2026 · 12025 · 12024 · 32023 · 27 dated
InterEarth is a climate change mitigation technology company that sequesters atmospheric CO2 using a proprietary "Dry Stack" technology to preserve woody biomass in inert conditions for over 100 years.
AgTechCleantechClimate TechDeep TechPerth, AU
Dr Howard Carr(CEO and Founder)Peter Metcalfe(Chief Operating Officer)
Co-investorsCounteract OneFundWA
Alithic develops direct air capture technology that converts captured CO₂ into a cement replacement product, addressing climate change and reducing emissions in the cement industry.
CleantechClimate TechEnergyNew MaterialsOxford, GB
Dr Pete ArmstrongRob Anex(Professor)inBu Wang(Professor)in
Co-investorsClean Energy Ventures
Adaptavate develops bio-based, drop-in building materials designed to reduce or remove CO₂ emissions in construction, including Breathaboard (a wallboard alternative) and Breathaplasta (lime-based plasters).
Climate TechConstruction TechNew Materials
Thomas Robinson(Founder & CEO)
Co-investorsOne Planet CapitalPerivoli InnovationsLow Carbon Innovation Fund
Alithic develops carbon-negative sustainable concrete materials for the construction industry using chemistry research from the University of Wisconsin-Madison.
CleantechClimate TechConstruction TechNew MaterialsMadison, US
Co-investorsKiko VenturesCounteract One
Carbon Cell is a team of designers, engineers, and scientists developing sustainable materials aimed at reducing plastic use and carbon emissions.
Circular EconomyCleantechClimate TechDeep TechNew Materials
Elizabeth Lee(CEO)inEden Harrison(COO)inOri Blich(CPO)in
Co-investorsCarbon13Counteract OneCreative Destruction Lab (CDL)Green Angel VenturesInnovate UK Investor PartnershipsOne Planet Capital+2 more
CarbonRun develops river alkalinity enhancement technology to remove carbon dioxide from the atmosphere while restoring freshwater ecosystems.
CleantechClimate TechImpact & Social GoodDartmouth, CA
Dr. Shannon Sterling(Co-founder)Luke Connell(Founder)Eddie Halfyard(Founder)Shannon Sterling(Founder)
Co-investorsCounteract OneGolden VenturesPanache VenturesPropeller VC
Chloris Earth provides satellite-derived forest carbon data, measuring above-ground biomass stock, biomass change, and forest cover going back to 2000 at 30m and 10m resolution with quantified uncertainty.
AI & Machine LearningClimate TechDeep Tech
Alessandro Baccini(Founder)Giulio Boccaletti(Founder)Marco Albani(Founder)Mark Friedl(Founder)
Co-investorsOrbia VenturesAt One VenturesFuture Energy Ventures
Concrete4Change develops carbon capture and utilization technology that converts industrial CO₂ and calcium-rich materials into advanced performance minerals for use in cement, lime, and chemical production.
Circular EconomyCleantechClimate TechNew MaterialsUK-based, GB
Prof. Sid Pourfalah
Co-investorsCemex VenturesHolcim MAQER VenturesZacua VenturesSDGx
CREW is a Yale spinout that adds calcium carbonate (ground limestone) to wastewater treatment plants to intensify biological treatment, cut chemical costs, and permanently remove carbon dioxide.
CleantechClimate TechDeep TechNew Haven, US
Joachim Katchinoff(Co-founder & CEO)inNoah Planavsky(Co-Founder & Scientific Advisor)in
Co-investorsAP VenturesBURNT ISLAND VENTURESConnecticut InnovationsCounteract OneEcho River CapitalEmerald Technology Ventures Ag+4 more
Magrathea develops a new electrolytic process to produce magnesium metal from seawater and brines, aiming to establish American and Western supply of this defense-critical material currently dominated by China.
Advanced ManufacturingCleantechDefense TechNew MaterialsArkansas, US
Alexander Grant(CEO)Alex Grant(Founder)Jacob Brown(Founder)
Co-investorsAvilaBalerion Space VenturesCompoundHyperguapJuniperNecessary Ventures+4 more
Parallel Carbon develops hardware technology to produce low-cost hydrogen, renewable fuels, and chemicals such as fertilizers and methanol as alternatives to fossil fuels.
CleantechClimate TechEnergyJersey City, US
Aranzazu Carmona Orbezo(Executive Officer, Director, Promoter)inRyan Anderson(Executive Officer, Director, Promoter)in
BoardAndrew Shebbeare(Director)in
Co-investorsAxon Partners GroupCounteract OneDeep Science VenturesDemos Strategic Investing PartnersAramco Ventures
Phlair develops direct air capture (DAC) technology built around its Hydrolyzer process for energy-efficient generation of acid and base, designed to be compatible with intermittent renewable solar power.
CleantechClimate TechDeep Tech
PaulSteffenMalte Feucht(Founder)inPaul Teufel(Founder)Steffen Garbe(Founder)
Co-investorsAtlanticCounteract OnePlanet A VenturesVerve VenturesAtlantic LabsExtantia Capital+1 more
Seqana provides soil organic carbon (SOC) measurement, reporting, and verification (MRV) consulting, including sampling design and methodology guidance, for agrifood companies running carbon projects.
AgTechAI & Machine LearningClimate TechImpact & Social Good
Jakob Levin(Founder)inJulian Kremers(Founder)in
Co-investorsCounteract OnePymwymicHTGF
Vateris (formerly Concrete4Change) is a UK-based advanced materials technology company whose proprietary process converts industrial flue gas CO₂ into GypCarb, a vaterite-based mineral additive for cement and concrete, while co-producing high-purity SOP mineral fertiliser.
CleantechClimate TechNew Materials
Sid Pourfalah(Co-founder (Professor))inDalraj Nijjar(Co-founder)in
Co-investorsHolcim MAQER VenturesZacua VenturesCounteract OneSustainable Ventures
Vesta builds a cloud-based loan origination system for mortgage lenders, replacing outdated legacy systems with modern software that supports concurrent user access and AI-powered workflow automation.
AI & Machine LearningEnterprise SoftwareFintechPropTechSaaSSan Francisco, US
Mike Yu(Founder)inDevon Yang(Founder)inKelly Erhart(Cofounder)Devon Yan(Founder)
Co-investorsAndreessen HorowitzConversion CapitalTemerity Capital PartnersZigg CapitalABS VenturesAzolla Ventures+3 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Aquatic LabsCellaMafixNormaRepAir
Portfolio news
latest coverage across their companiesSeqana · thesaasnews.com · Jun 22, 2026
Crew Carbon · citybiz.co · May 18, 2026
Parallel Carbon · parallelcarbon.com · Jan 28, 2026
Adaptavate · finsmes.com · Apr 23, 2025
Frequently asked questions
- How many investments has Counteract made?
- Counteract has 21 tracked investments, including 2 dated in the last 24 months.
- What stage does Counteract invest at?
- Counteract invests at the Pre-Seed, Seed, Series A stages.
- What sectors does Counteract focus on?
- Counteract focuses on Advanced Manufacturing, AgTech, Cleantech.
- Where is Counteract located?
- Counteract is headquartered in London, GB.
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