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Social Impact Capital

Impact investor

New York · Pre-Seed–Series A · 21 people tracked

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Investment thesis

Social Impact Capital operates on Khosla's 'Instigator Hypothesis' — the belief that a small number of entrepreneurs scaling world-changing technology can solve humanity's biggest problems, such as the climate crisis. The firm invests as early as possible into what it calls the 'best ideas in impact,' arguing that venture capital has over-focused on 'backyard problems' rather than grand global challenges. It funds and supports founders working on the hardest problems, backing companies across areas like covalent drug design, carbon capture, zero-emissions steel, alternative foods, and wearable medical devices.

Source: firm website, verified Aug 3, 2026.

Stage
Pre-Seed–Series A
Check
$100K – $1.5M
HQ
New York, New York, US
Leads rounds
Follows
Instruments
Equity
Founded
2018
Last 12 months
1 investment
Tracked investments
9

Team · 21 people

from the firm's website & public directories

Founder mafia

3 people who came through Social Impact Capital went on to found or lead other companies.

What they invest in

from 9 of 9 portfolio companies

Biotech ×5Climate Tech ×4Healthtech ×4Deep Tech ×3AgTech ×2AI & Machine Learning ×2Cleantech ×2Advanced Manufacturing ×1

HQs:United States×5

Investments · 9 tracked

founders shown can be your intro path

By year:2026 · 12017 · 12 dated

Curemarkcuremark.comMar 2017SEC filingmedium confidence

Curemark is a clinical-stage biopharmaceutical company developing therapies for neuro-developmental and neurodegenerative disorders.

BiotechHealthtechRye Brook, US

Joan Fallon(Executive Officer, Director)Matthew Heil(Executive Officer)Kimball Duncan(Manager of the LLC)Klaus Kleinfeld(Manager of the LLC)Eric Herman(Manager of the LLC)

BoardLeigh Morgan(Director)

Board seatJustin Stebbing· per SEC Form D · $150M raise · filed Mar 2017

EtiraRXApr 2026SEC filingmedium confidence

BiotechDallas, US

Ganesh Raj(Director)Russell Hayward(Executive Officer, Director)

BoardAnnalisa Jenkins(Director)

Board seatJustin Stebbing· per SEC Form D · $3M raise · filed May 2026

Catena Biosciencescatenabiosciences.comin𝕏

Catena develops a conjugation platform for antibody-drug conjugates (ADCs) and multi-payload conjugates used in oncology for solid tumors.

BiotechDeep TechHealthtechMedical DevicesSan Francisco, US

Marco Lobba(Founder)inMatthew Francis(Founder)in

Co-investorsCivilization Ventures Management, LlcIaso VenturesY CombinatorAxial VCLongeVCMBX Capital

Charm Industrialcharmindustrial.comin𝕏

Charm Industrial converts agricultural residues into bio-oil and injects it underground to remove carbon from the atmosphere at scale.

AgTechCleantechClimate Tech

Shaun Meehan(Chief Scientist and co-founder)

Co-investorsAzolla VenturesBreyer CapitalCongruent VenturesKinnevikLIONHEART VENTURESPrime Impact Fund+6 more

Limelight Steellimelightsteel.comin𝕏

Limelight Steel reimagines iron and steelmaking through new industrial technology approaches.

Advanced ManufacturingClimate TechDeep Tech

Andy Zhao(Founder)in

Co-investorsCantos VenturesCollaborative FundVoyager Partners

Menten AImenten.aiin𝕏

Menten AI develops generative AI software to design cyclic peptide therapeutics for drug targets beyond the reach of conventional small molecules and biologics.

AI & Machine LearningBiotechDeep TechHealthtechSan Francisco, US

Tamas Gorbe(Founder)inHans Melo(Founder)in

Co-investorsY CombinatorKhosla VenturesUncork CapitalAlumni VenturesBasecamp Fundbig_bets

Praanpraan.ioin𝕏

Praan builds air purification technology aimed at reducing particulate matter and providing cleaner air.

CleantechClimate TechHardware

Co-investorsBetter CapitalCool Climate CollectiveSnow Leopard Technology VenturesAera VCWEH Ventures

Totus Medicinestotusmedicines.comin𝕏

Totus Medicines develops precision covalent small-molecule oral therapies aimed at historically "undruggable" and known disease targets, using its OmniDEL discovery platform that screens targets in their normal cellular environment.

AI & Machine LearningBiotechHealthtech

Co-investorsDCVC (Data Collective)

Voyage Foodsvoyagefoods.com

Voyage Foods develops B2B ingredients that create sustainable, stable alternatives to traditional commodity sources for popular foods and beverages, addressing volatility in global ingredient markets and climate risks.

AgTechClimate TechFoodTechOakland, US

Adam Maxwell(Executive Officer, Director)

BoardStephen George(Director)Alec Lee(Director)James Stewart(Director)inGary Wu(Director)

Co-investorsBloom8Cerity Partners VenturesCollaborative FundHorizons VenturesLevel One FundNimble Partners+2 more

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.

Portfolio news

latest coverage across their companies

Frequently asked questions

What stage does Social Impact Capital invest at?
Social Impact Capital invests at the Pre-Seed, Seed, Series A stages.
What is Social Impact Capital's typical check size?
Social Impact Capital typically writes checks of $100K – $1.5M.
What sectors does Social Impact Capital focus on?
Social Impact Capital focuses on Biotech, Cleantech, Climate Tech, Consumer, Crypto & Web3, Deep Tech, Energy, Enterprise Software, Fintech, FoodTech, Healthtech, Impact & Social Good.
Where is Social Impact Capital located?
Social Impact Capital is headquartered in New York, US.
Does Social Impact Capital lead rounds?
Social Impact Capital typically participates in rounds rather than leading them.

Images

Social Impact Capital photo

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