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Warm Fund
#28 · Emerging 100 · 2026

Abstract Ventures

www.abstract.vc · San Francisco, California

“Backing transformative founders building exceptional companies across all sectors.”

$100K – $1M
Check Size
Leads & Follows
Lead Tendency
01Investment Thesis

Backing transformative founders building exceptional companies across all sectors

Exclusion Criteria

No specific anti-thesis; truly sector-agnostic approach

02Founder Preferences

Exceptional founders with bold vision and deep domain expertise

03Investment Team
RN
Ramtin Naimi
Founder & General Partner
DK
David Kwon
Partner
04F4 Research Brief

Abstract Ventures Research

Investment Thesis

Abstract Ventures is a San Francisco-based venture capital firm with $1.8 billion in assets under management. Operating on a sector-agnostic philosophy, Abstract invests in seed and early-stage companies with transformative potential. The firm's reputation among founders is built on fierce loyalty, unparalleled connections, and a relentless drive to help portfolio companies win.

Investment Approach

Abstract takes a partnership-oriented approach to founder support, emphasizing relationship depth over portfolio breadth diversity metrics. The firm's conviction in backing exceptional founders transcends sector boundaries, resulting in a remarkably diverse portfolio spanning AI, enterprise, fintech, healthcare, biotech, crypto, consumer, and frontier technology.

Portfolio Composition

With 500+ investments to date, Abstract's portfolio reflects a systematic approach to identifying and supporting transformative founders. Notable exits include SpaceX (December 2025), demonstrating the firm's ability to back companies that reshape industries. The portfolio spans:

AI & Intelligence: LangChain, Replit, Cognition, Lindy, Charlie Labs, Prompt, Recraft, Hotshot, xAI, and 100+ other AI-focused companies

Enterprise Software: Rippling, Figma-acquired Dynaboard, WorkOS, Voiceflow, Vapi, Omnistrate

Fintech: Alpaca, Ripple, Cherry, Brigit (acquired Upbound), Clarity Money (acquired Goldman Sachs), OneSafe, Origin, Deuna

Healthcare: Garner, Connie Health, Enso (acquired Hinge), Max AI, Quadrant Health, Cure, Verse Medical

Frontier Tech: SpaceX, Halo Industries, Mytra, Glass Imaging, Fuse Energy, Atom Computing

Recent Activity

Abstract remains actively deploying capital with a focus on AI agents, enterprise AI tooling, and frontier technology. Recent investments demonstrate continued conviction in founders building at the intersection of emerging technology and transformative applications. The December 2025 SpaceX exit represents a notable milestone, though the breadth of portfolio activity suggests consistent deal flow and investment pace.

Team & Reputation

Ramtin Naimi, the investor profiled, operates within a firm known for exceptional founder relationships and deep industry networks. Abstract's approach emphasizes working relationships and collaborative support, with the firm providing not just capital but strategic guidance and network access.

Check Size & Stage

Primary focus on seed and Series A, with check sizes ranging from $5-15 million based on public data. The firm takes both lead and follow positions, demonstrating flexibility in round participation.

Sector-Agnostic Philosophy

Unlike many VCs who focus on specific verticals, Abstract's true sector-agnostic approach is evidenced by simultaneous deep involvement across AI, biotech, frontier tech, and consumer. This suggests founders building transformative technology at any stage can find a receptive partner regardless of vertical.

05Selected Portfolio
Aerospace & Defense
Spacex·Whisper Aero·Airplane
Biotech & Life Sciences
Taut·Unnatural Products·Excision·General Biological·Locus Biosciences·Methid·Mirror·NewLimit·Outpace Bio·Aether Biomachines·Axiom Bio·Blaze·Aether Biomachines
Climate & Sustainability
SINAI·F
Consumer Apps & Social
Sesame·The Arena·Volumetrics·Friend·Tryhero·It’s Good·LuzIA·Partiful·Passes·Prompt AI·Partiful·Amo
Crypto & Web3
Tenderly·Zero Gravity·Flashnet·Kinetic·Lemon·Lightning Labs·Optimism·Ripple·Avalanche·Compound·Crossmint·Solana·Alpaca
Developer Tools & Infrastructure
Scalar·Tempest·Factory·LangChain·Propel·Reflex·Render·Rive·Anon·Fly.io·Glue·Airplane·Parallel
E-commerce & Marketplaces
Dupe·Frubana·Nivoda·Pietra·Bazar·Bezel·Hero·Nivoda·Popshop Live·Garner·Blackstar
EdTech
Websim·Wonderschool·Outsmart
Energy & Power
Texture·Odyssey·Fuse Energy
Enterprise Software
Secoda·SkyLink·SnackPass·Symbolica·Tako·Teambridge·Tenzo·Traba·Tradespace·Voiceflow·Wiser·WorkOS·x.ai·Ethyca·EyeTell·Glass Imaging·Granica·hebbia.ai·Highlight·Hotshot·Index·Kojo·Lindy·MagicPath·Memo·Mozart Data·Omnistrate·Playbook·Polar·Proton·Replit·Respell·Santori Labs·Rippling·Hebbia·Clay·Crusoe·Brave·Vapi·Acryl Data·Applied Labs·Arcana·Charlie Labs·Cluely·Cognition·ComfyUI·Command E·Conductor·Conversion AI·Coworker AI·Dupe·Dynaboard·Highlight·Kinetic·Nashi·Prodigy·Skiff·SoralD·White Circle·Rippling·Outsmart·11x·Acryl Data·Cognition·Glue·Revel·Era·Sail Research·Aaru
Fintech & Payments
Selfbook·StashFin·Tilled·TrustLayer·Truv·Vana·dYdX·Friday Harbor·HighFi·Kikoff·Levro·Lighter·Method Financial (Forward Lending, Inc.)·Moov·Nomad·OneSafe·Origin·Polychain·Polymarket·Ridian·Brigit·Alloy·Alpaca·Caliza·Cherry·Clarity Money·CommonStock·Deuna·Maza·OpenInvest·Polychain·Tagomi·Natural·Adaptive Security·Era
Gaming
Third Dimension·Matchday·Match Day·OK Play
Healthcare & Digital Health
Sonera·Telepatia·Trusted Health·Versemedical·Vital Bio·Wesper·Future·Garner·Lind·Max AI·Maximus·Quadrant Health·Rue Four·Verse Medical·Bevel·Connie Health·Cure·Mirror·Weav·Doctronic
HR Tech & Future of Work
Dover·EarnBetter·ChartHop
Insurance
Hippo·Modern Life·Newfront·Newfront·Bestow·Helia
Legal & Regtech
Particle Intel·X1
Logistics & Supply Chain
Melrose·AirGarage·CloudTrucks·AirGarage
Manufacturing & Industrial
Arc Boats·Antioch·Chance·Concrete·Delphi·Enso·Index·Motion
Marketing & Adtech
Syft Data·Unify·Hypermode·Motion·Adrenaline·Future
Media & Entertainment
Showrunner·Status AI·Wondera·Favorited·FlickPlay·Hedra·Krea·Recraft·Sandbox VR·Neon·Audiogen·Callin·Recraft
Real Estate & PropTech
Landing·Nomad Homes·Blooma·Corner·Nomad
Robotics & Automation
Watney Robotics·Matic·Mytra
Security & Cybersecurity
Sauron·Second Front·Socket·Torch Systems·Volt·White Circle AI·Formal·Material Security·Red Balloon Security·Adaptive Security·Anzenna·Doppler·The Antifraud Company·Truffle Security
Semiconductors & Hardware
Sphere Semi·Halo Industries·Atom Computing·Subtle Computing
Travel & Hospitality
AvantStay
Other
Joinplaybook·Reclip·Pietra·Adrenaline·Halo Industries·Deeptune
Open the full portfolio→
06Recent Updates

Fresh signals from public announcements, essays, and portfolio activity.

See full activity (15) →
Portfolio company Deeptune was acquired by Mercor, roughly four months after its Series A, to build AI agent training environments.
EXIT·siliconangle.com
JUL 9, 2026
Participated in Sail Research's $80M combined seed and Series A for max-efficiency AI agent infrastructure.
INVESTMENT·prnewswire.com
JUN 25, 2026
Participated in Parallel Web Systems' $100M Series B at a $2B valuation, led by Sequoia Capital.
INVESTMENT·techcrunch.com
APR 28, 2026
Led Blackstar's $12M seed round for AI hardware computing device founded by former OpenAI Codex engineer.
INVESTMENT·weex.com
APR 2026
Led Era's $11M seed round for AI software platform enabling creation of AI-powered gadgets and devices.
INVESTMENT·techcrunch.com
APR 2026
07Frequent co-investors
A
Avra
Both backed 9 of the same companies
Partiful, Method Financial (Forward Lending, Inc.), Hebbia, Vapi,
+5 moreRender, Material Security, 11x, Unify, Clay
SC
Shrug Capital
Both backed 9 of the same companies
Crossmint, Bezel, Sandbox VR, ChartHop,
+5 moreSauron, Popshop Live, Voiceflow, SnackPass, Aether Biomachines
CO
Chapter One Ventures
Both backed 8 of the same companies
Glue, Doppler, Truv, Glue,
+4 moreBlackstar, Compound, Lighter, Flashnet
RC
Ribbit Capital
Both backed 8 of the same companies
Crossmint, Crusoe, Fuse Energy, Tako,
+4 moreSolana, Hippo, Cognition, Lighter
FF
Founders Fund
Both backed 6 of the same companies
NewLimit, Spacex, Polymarket, Cognition,
+2 moreLighter, Rippling
Find the investors for your round→
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Quick Reference
Check Size
$100K – $1M
Stages
Pre-Seed · Seed · Series A
Decision
Partnership
Location
San Francisco, California
Sector Focus
Fintech & PaymentsE-Commerce & MarketplacesInsuranceBiotech & Life SciencesSemiconductors & HardwareHR Tech & Future Of WorkCrypto & Web3Developer Tools & InfrastructureSecurity & CybersecurityEnergy & PowerHealthcare & Digital Health
Models
AIFintechEnterpriseBiotechB2BB2C
Technology
AI/MLHardwareBiotechnology
See all Fintech & Payments investors →See all E-commerce & Marketplaces investors →See all Insurance investors →
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Focus Areas
Fintech & PaymentsE-Commerce & MarketplacesInsuranceBiotech & Life SciencesSemiconductors & HardwareHR Tech & Future Of WorkCrypto & Web3Developer Tools & InfrastructureSecurity & CybersecurityEnergy & PowerHealthcare & Digital Health

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F4 Intelligence Report · Last Researched August 2, 2026F4 Research Engine