/Investor DB

Rebel Fund

Venture capitalActively deployingoperating company · company profile

San Francisco · Pre-Seed–Series A · 11 people tracked

Also known as Majora Rebel Ventures · REBEL MANAGEMENT, LLC

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Investment thesis

Rebel Fund focuses solely on seed-stage Y Combinator-backed startups, targeting the top roughly 10% of YC companies (about the top 0.06% of applicants). It leverages the founding partners' status as accomplished YC alumni to secure early, often pre-Demo Day access to top deals with a near-100% deal win rate. The fund uses a proprietary machine-learning algorithm, Rebel Theorem 4.0, trained on an extensive database of YC startups, founders, and outcomes, to screen and validate investments and build a large, diversified portfolio statistically designed to outperform. Rebel invests only in YC companies and does not accept unsolicited pitches.

Source: firm website, verified Sep 29, 2026.

Stage
Pre-Seed–Series A
Check
$100K – $5M
HQ
San Francisco, CA, US
Leads rounds
Follows
Instruments
Equity
Founded
2019
Last 12 months
16 investments
Private fund assets
$121M
VC funds
4
Tracked investments
387
Unicorns
2
Acquisitions
17

Team · 11 people

from the firm's website & public directories
Alexandra Espinal· Portfolio Developmentin

Leads portfolio development at Rebel Fund.

Justin Hilliard· Principalin

Principal at Rebel Fund on the leadership team.

Luis Roberto Fortuño· Managing Directorin

Managing Director at Rebel Fund on the leadership team.

15 people who came through Rebel Fund went on to found or lead other companies.

+ 3 more →

What they invest in

from 365 of 387 portfolio companies

AI & Machine Learning ×227Enterprise Software ×210SaaS ×144Fintech ×85Developer Tools ×54Healthtech ×47Advanced Manufacturing ×40Data & Infrastructure ×37

HQs:United States×251United Kingdom×16India×11Canada×8Brazil×5Nigeria×5

Who they back

founder profiles across 296 portfolio companies
14%
solo founders
40 of 296 mapped founding teams
48%
repeat founders
of 609 founders with career history
~1 yr
old at investment
median across 42 dated deals

Founding team size:solo founder×402 founders×1233 founders×874+ founders×46

Where their founders studiedfrom 574 founders with education data

University of California, Berkeley ×45Stanford University ×30Harvard University ×17Massachusetts Institute of Technology ×15Cornell ×12Imperial College London ×12Columbia University ×11University of Waterloo ×11

What their founders studiedfrom 563 founders with field-of-study data

Computer Science ×242Engineering ×154Business & Management ×103Economics ×46Mathematics & Statistics ×36Finance & Accounting ×25Life Sciences ×21Physics ×15

Where their founders worked beforefrom 609 founders with career history

Google ×44Microsoft ×32McKinsey & Company ×17Uber ×14IBM ×13Meta ×12Stanford University ×10Goldman Sachs ×8

Accelerator rootsportfolio companies that came through a program

Y Combinator ×289Entrepreneur First ×2Techstars ×2

39 founders hold a PhD · 60 hold an MBA (of 620 with degree data)

Investments · 387 tracked

founders shown can be your intro path

By year:2026 · 112025 · 142024 · 52023 · 102022 · 82021 · 62017 · 155 dated

Openmartopenmart.comin𝕏Seed✓ verified

Openmart provides a verified database of 50,000+ real estate investors across the United States, including investment firms, property investors, and syndicates, with enriched contact data for B2B sales and marketing teams.

AI & Machine LearningB2B MarketplacesData & InfrastructureEnterprise SoftwareSaaSSales TechSan Francisco, US

Richard He(CEO)inKathryn Wu(Founder)inKathryn Wu🤝(Founder)inRichard He Kathryn Wu(Founder)Jin Zhou(operation lead)

Co-investorsAfore CapitalY CombinatorBrighter CapitalEight CapitalGaingelsImagination Capital+10 more

Scanbasescanbase.cominSeed✓ verified

Scanbase designs and implements tailored algorithm solutions for medical diagnostic companies to optimize diagnostic workflows, improve product quality, and reduce costs.

AI & Machine LearningEnterprise SoftwareHealthtechMedical DevicesLos Angeles, US

Jeffrey Lange(Founder)inSteve Roger(Founder)in

Co-investorsY CombinatorLobster CapitalMaiora Rebel VenturesTRAC (Third Round Analytics Capital)Dragon CapitalLeonis Investissement+2 more

Superagentsuperagent.shin𝕏Seed✓ verified

Superagent provides autonomous security research to identify, fix, and disclose software vulnerabilities in code and AI agents.

AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSan Francisco, US

Alan Zabihi(CEO)inIsmail Pelaseyed(Founder)inAlan Zabihi Ismail Pelaseyed(Founder)

Co-investorsY CombinatorEight CapitalMaiora Rebel VenturesAfore CapitalITERATIVENew Order

AccessOwlaccessowl.ioin𝕏Seed

AccessOwl is an access governance and identity management platform that automates SaaS access administration tasks like employee onboarding, offboarding, and access reviews.

CybersecurityData & InfrastructureEnterprise SoftwareSaaSBerlin, DE

Philip Eller(Founder)inMathias Nestler(Founder)inPhilip Eller Mathias Nestler(Founder)Jlo Cala(Hiring Manager)Bee Briones(Hiring Manager)

Co-investorsE Nugget Ventures UG (Haftungsbeschränkt)Maiora Rebel VenturesY CombinatorSandhill (ex Stonks)TA VenturesTwenty Two Ventures+2 more

Advanced Metal Researchadvancedmetalresearch.comin𝕏Seed

Advanced Metal Research manufactures robotic welding systems equipped with computer vision for real-time seam tracking and post-weld inspection, converting manual welding into an automated, learning-based manufacturing process.

Advanced ManufacturingHardwareRoboticsLos Angeles, US

Angus Muffatti(CEO)inJulian Fried(Founder)inStephen Lin(Founder)in

Co-investorsY CombinatorSingularity VenturesWefunder

Aegisaegishealth.usin𝕏Seed

Aegis provides a platform to healthcare providers and hospitals that automates insurance denial appeals and resubmissions to recover lost revenue.

Enterprise SoftwareHealthtechSaaSSan Francisco, US

Krishang Todi(CEO)inAarav Bajaj(CTO)inDhanya Shah(Founder)inErmin Sharich(Founder)

Co-investorsY CombinatorMaiora Rebel VenturesGreater VenturesMana VenturesPeterson Venture PartnersSequoia Capital

Agency Tool Companyagencytool.comin𝕏Seed

Agency Tool Company builds infrastructure for robotics teams to build, deploy, and manage fielded robots, including ATC Deploy (over-the-air software updates and fleet management for robot fleets) and ATC Build (a CI runner backed by hosted NVIDIA Jetson embedded compute).

Advanced ManufacturingDeep TechDeveloper ToolsRoboticsDenver, US

Davis Foster(Founder)inJack Morrison(CEO)in

Co-investorsPioneerWSSY CombinatorZero IndexGaingelsGuil Mobility Ventures+6 more

Agentic Labsagenticlabs.cominSeed

Agentic Labs provides a context engine and code knowledge base platform for AI teams to manage code, organize data, optimize prompts, and improve model performance through evaluation and reinforcement learning.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareNew York City, US

Maksim Ivanov(CEO)inRobert McKnight

Co-investorsMaiora Rebel VenturesPioneerTranspose Platform ManagementY CombinatorFellowsGeneral Catalyst+10 more

AgentPhoneagentphone.aiin𝕏

AgentPhone provides phone numbers for artificial intelligence agents, enabling them to communicate with people and businesses via voice calls and text messages.

Data & InfrastructureEnterprise SoftwareSan Francisco, US

Manav Modi(CEO)inMeet Modi(CTO)in

Co-investorsPerceptive Ventures Management Company, LlcY CombinatorSwift Ventures

Airbyteairbyte.comin𝕏Seed · May 2021

Airbyte provides a context layer for agents and pipelines, enabling data connectivity and integration solutions.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Michel Tricot(CEO)inJean Lafleur(COO)inJean (John) Lafleur(Founder)inJohn Lafleur(Founder)Brian Cannon(Lead Recruiter)Ron Miguel(Senior Recruiter)

Co-investors8VCAccelCoatue ManagementFlex Capital PartnersKima VenturesStandard Capital+11 more

AiSDRaisdr.comin𝕏Seed · Dec 2023 · $3M

AiSDR is an AI sales agent that automates outbound sales emails and books meetings for B2B companies.

AI & Machine LearningEnterprise SoftwareSaaSSales TechSan Francisco, US

Yuriy Zaremba(CEO)inOleg Zaremba(Founder)inYuriy Zaremba Oleg Zaremba(Founder)

Co-investorsY CombinatorAngel OneFlyer One VenturesMaiora Rebel VenturesPioneerSID Venture Partners+5 more

AIVideo.comaivideo.com𝕏Seed

AIVideo.com provides video production services powered by AI technology for clients seeking automated or accelerated content creation.

Enterprise SoftwareSan Francisco, US

Justin Harvey(Founder)inEduardo Faraday(Founder)inOrestis Lykouropoulos(Founder)in

Co-investorsAlumni VenturesBasecamp FundBlue Wire CapitalCorteza CapitalPioneerTq Ventures Llc+6 more

Albedoalbedo.comin𝕏Series A

Albedo develops a flight-proven platform for Very Low Earth Orbit operations, providing satellite-based insights and connectivity services for national security and critical infrastructure systems.

Advanced ManufacturingClimate TechDeep TechDefense TechSpace TechDenver, US

Topher Haddad(Founder)inAyJay Lasater(Founder)inWinston Tri(Founder)inDylan Betts(Executive Officer)inAjJay Lasater(Founder)Becca Zukowski(Lead Recruiter)

Co-investorsAngel Collective Opportunity FundBlack FlagBooz Allen VenturesBreakthrough Energy VenturesCommodity CapitalCubit Capital+25 more

Albedoalbedo.space

Topher Haddad(Founder)in

Co-investorsImmeasurableInitialized Capital

Aleph Solutions (Alephee)alephee.comin𝕏Seed

Alephee is a B2B platform that digitally connects brands, manufacturers, wholesalers, retailers, and service providers in the automotive industry to facilitate supply chain management, product sourcing, and sales.

B2B MarketplacesE-commerceEnterprise SoftwareLogistics & Supply ChainMarketplacesSaaSBuenos Aires, AR

Gaston Zelerteins(Founder)inJavier Neumann(Founder)inJonathan Saiegh(Founder)in

Co-investorsMaiora Rebel VenturesSoma CapitalY CombinatorBluewatch VenturesFJ LabsGlobal Founders Capital+7 more

Alepheealephcrm.com

Gaston Zelerteins(Founder)in

Co-investorsChaos VenturesFJ LabsNewtopia VC

Alga Biosciencesalga.bioin𝕏Seed

Alga Biosciences develops feed additives that reduce methane emissions from cattle — cutting cow burps to combat climate change.

Advanced ManufacturingAgTechBiotechClimate TechSan Francisco, US

Alex Brown(Founder)inDaria Balatsky(Founder)inCaroline McKeon(Founder)inAlexander Brown(Founder)in

Co-investorsY CombinatorDay One VenturesAngel Collective Opportunity FundBBQ CapitalCollaborative FundCool Climate Collective+13 more

Algen Biotechnologiesalgenbio.cominSeed

Algen Biotechnologies discovers and develops small molecule therapeutics for cancer and inflammatory diseases using CRISPR, RNAi, and machine learning to decode functional gene networks and predict drug responses.

AI & Machine LearningBiotechDeep TechHealthtechMedical DevicesSan Francisco, US

Chun-Hao Huang(Founder)inChristine Du(Founder)inJennifer DoudnaDr. Jeff Whitten(Chief Scientific Officer)

Co-investorsCota CapitalDraper AssociatesLifespan Vision VenturesY CombinatorSequoia CapitalViking Global

Almondalmondobgyn.comin𝕏Defunct

Almond provides obstetric and gynecologic care through both in-person clinics and telehealth, using back-office technology designed to optimize physician schedules and employing a broader team of care providers to reduce patient wait times.

HealthtechWellness & FitnessLos Angeles, US

Tara Raffi(Founder)inCarly Allen(Founder)inSaba Khalilnaji(Founder)inShawn Patel(Founder)inTara Raffi Carly Allen(Founder)Lauren Carter(Principal Engineer)

Co-investorsY CombinatorKube VCOffline VenturesSTEVEN EIDELMANTrue Ventures

Almondalmond.botin𝕏

Almond manufactures Axol, a dual-arm robot designed for physical AI applications in real-world industrial and construction work.

Advanced ManufacturingAI & Machine LearningHardwareRoboticsSan Francisco, US

Saba Khalilnaji(CEO)inShawn Patel(CTO)in

Co-investorsMaiora Rebel VenturesRebellion VenturesY Combinator

ALT TEXthealttex.comin𝕏Seed

Develops alternative textile materials to replace polyester and reduce the fashion industry's plastic consumption and carbon emissions.

Advanced ManufacturingBiotechCircular EconomyClimate TechNew MaterialsToronto, CA

Myra Arshad(Founder)inAvneet Ghotra(Founder)in

Co-investorsAmplify CapitalBeresford VenturesCollaborative FundCreative Destruction Lab (CDL)Garage CapitalIT-Farm Corporation+5 more

Anaraanara.comin𝕏Seed

Anara is an AI platform designed for scientific research that searches document libraries and the web, summarizes findings with automatic citations, and helps researchers write with verified sources.

AI & Machine LearningDeep TechEnterprise SoftwareFuture of WorkSaaSSan Francisco, US

Naveed Janmohamed(CEO)in

Co-investorsEight CapitalFoundersPioneerPreston-Werner VenturesTRAC (Third Round Analytics Capital)Transpose Platform Management+6 more

Anchorgetanchor.coin𝕏Seed

Anchor builds compliance and security solutions for financial services, providing guardrails and protective measures to help customers maintain regulatory compliance.

CybersecurityFintechLagos, NG

Segun Adeyemi(Founder)inGBEKELOLUWA OLUFOTEBI(Founder)inOlamide Sobowale(Founder)inDor Dankner(Founder)Gbemi Adelekan(Founder)Guy Ben-Simhon(Founder)

Co-investorsY CombinatorBVP InvestorsDigital Currency GroupFuture AfricaPioneerAccel+9 more

Andcouseandco.comin𝕏Seed

Andco provides AI-powered case management software for personal injury law firms, automating document retrieval, medical record collection, insurance claim processing, and demand letter preparation from intake through settlement.

AI & Machine LearningEnterprise SoftwareLegalTechSaaSSan Francisco, US

Ryan Xue(CEO)inDavid Lee(Founder)inMichael Lemm(COO)in

Co-investorsKadan CapitalY CombinatorBatch VenturesBlast.ClubC Square CapitalDesigner Fund+6 more

Andromeda Surgicalandromedasurgical.comin𝕏Seed

Andromeda Surgical develops an AI-guided surgical platform that provides GPS-like navigation and autonomous task capabilities to surgeons, starting with endourology procedures.

AI & Machine LearningHealthtechMedical DevicesRoboticsSan Francisco, US

Nick Damiano(Founder)inKartik Tiwari(Founder)inNick Damiano Kartik Tiwari(Founder)Prakul Singh(In-house recruiter)Gaby Falotico(In house recruiter)

Co-investorsAlumni VenturesAttack CapitalBBQ CapitalDevice of Tomorrow CapitalEarl Grey CapitalEight Capital+29 more

Anfinanfin.vninSeed

Anfin is a mobile investment platform that enables users to invest and earn returns, offering an AI-powered investment assistant called Anah to help optimize investment decisions.

FintechHo Chi Minh City, VN

Phuoc Tran(Founder)inChi Pham(Founder)inHiep Nguyen(Founder)inMichael Do(Founder)Michael Do

Co-investorsEight CapitalFirst Check VenturesR2 Venture PartnersSprint VcY CombinatorAccel+12 more

Ångström AIangstrom-ai.comin𝕏Seed

Ångström AI develops AI-powered physics simulations for pharmaceutical drug discovery, computing molecular properties like solubility, lipophilicity, and crystal structure stability to replace traditional lab experiments.

AI & Machine LearningBiotechDeep TechHealthtechSan Francisco, US

Jose Miguel Hernandez Lobato(Founder)inLaurence Midgley(CTO)inJavier Antoran(CEO)

Co-investorsCleo CapitalIA Seed VenturesMaiora Rebel VenturesPioneerSurgePoint AngelTranspose Platform Management+8 more

Apolinkapolink.spacein𝕏Seed

Apolink provides on-demand satellite communications infrastructure, enabling real-time telemetry and command links for space operators managing satellites for applications including disaster response, wildfire detection, and intelligence gathering.

Advanced ManufacturingDeep TechEnterprise SoftwareSpace TechSan Francisco, US

Onkar Batra(CEO)inOnkar Singh Batra(Founder)Geffen Avraham(CTO)Emily Karlzen(Head of Ops)

Co-investorsY Combinator1802 Ventures468 CapitalEMERGENT VENTURESHalo LabsJump Crypto+7 more

Apollo Groupapollo-group.io𝕏

Metal is an AI-driven platform that helps startup founders raise venture rounds by researching and surfacing well-matched investors, mapping warm-intro paths, and managing fundraising pipelines with meeting intelligence and coaching.

AI & Machine LearningFintechSaaS

Co-investorsMaiora Rebel Ventures

Arcanerohanmehta.com𝕏SeedAcquired

This is the personal website of Rohan Mehta, a software engineer at OpenAI who previously founded a YC-backed startup and worked at Meta; it is not a company website.

AI & Machine LearningConsumerNew York City, US

Rohan Mehta(Founder)inLucas Switzer(Founder)in

Co-investorsY CombinatorAccelAccel-KKRAmino CapitalCamford CapitalEight Capital+7 more

Arcanearcanelabs.ai

Lucas Switzer(Founder)in

Arcanearcane.ai

Arcane provides engineering strategy consulting, custom AI/ML architecture design, and parallel computing optimization services.

AI & Machine LearningDeep TechDeveloper Tools

Lucas Switzer(Founder)inRohan Mehta(Founder)in

Co-investorsY Combinator

Archonarchon.incin𝕏Seed

Archon provides compliance services that accelerate the federal authorization process for software vendors selling to government agencies, reducing typical timelines and associated expenses.

CybersecurityGovTechSan Francisco, US

George Parks(CEO)inSam JungRyan Manthy(Founding Engineer)

Co-investorsPioneerY CombinatorBlast.ClubGold House VenturesThe E14 FundTiny Supercomputer Investment Company

Arclinearcline-ai.com

Moritz is an AI-native law firm that pairs AI-drafted legal work with attorney review to deliver commercial contracts and other legal matters at a fixed per-matter fee, typically with same-day turnaround.

AI & Machine LearningLegalTechSaaSSan Francisco, US

Pamir Ehsas(Co-founder)Daniel Dalla Vedova(Co-founder & COO)

Co-investors20VCY Combinator

Aristarist.coin𝕏Seed

Arist delivers entrepreneurship education courses to high school students in conflict zones.

AI & Machine LearningEdTechEnterprise SoftwareHR TechImpact & Social GoodNew York City, US

Michael Ioffe(Founder)inRyan Laverty(Founder)inMaxine Anderson(Vice President of Ops)inJoseph PassananteSumer Sareen(Recruiter)Sam Johnson(CTO)

Co-investorsAcadian Ventures Management, LlcEmles Venture PartnersNeer Venture PartnersPeakSpan Capital PartnersRainfall VenturesSoma Capital+7 more

Armilla AIarmilla.aiin

Armilla AI is a managing general agent offering liability coverage, performance warranties, and risk assessments for AI systems.

AI & Machine LearningData & InfrastructureEnterprise SoftwareFintechInsurTechToronto, CA

Dan Adamson(Founder)inKarthik Ramakrishnan(Founder)inBaiju Hasmukhrai Devani(Executive Officer, Director)Baiju Devani(Founder)Rahm Hafiz

BoardRaif Barbaros(Director)in

Co-investorsBeresford VenturesBetaworksCreative Destruction Lab (CDL)Differential VenturesMistral Venture PartnersMS&AD Ventures+8 more

Array Labsarraylabs.ioin𝕏Seed

Array Labs develops radar technology for aerospace and other leading industries.

Advanced ManufacturingDeep TechDefense TechHardwareSpace TechSan Francisco, US

Andrew Peterson(Founder)inJose Isaac Robledo(Founder)in

Co-investorsACVC PartnersAera VCBBQ CapitalClearance Venture PartnersDellin InvestmentsGaingels+28 more

Asha Healthasha.healthin𝕏Seed

Asha Health provides AI-powered software that automates clinical workflows and administrative tasks for medical practices.

AI & Machine LearningDigital HealthHealthtechNew York City, US

Akkshay Khoslaa(CEO)inGokul Kumarresen(CTO)in

Co-investorsY Combinator186 VenturesDG Daiwa VenturesMaiora Rebel VenturesOlive Tree CapitalReach Capital+5 more

Atlaatla-ai.comin𝕏SeedDefunct

Atla provides debugging and monitoring tools for AI agents, using LLM-based evaluation to identify error patterns in agent behavior and suggest targeted improvements.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareLondon, GB

Maurice Burger(Founder)inRoman Engeler(Founder)inMaurice Berger(Founder)Kyle Dai('s Associate)

Co-investorsBOOOMMaiora Rebel VenturesY CombinatorCreandumStämpfli Verlag AG

Autumn AIautumnai.comin𝕏Seed

Autumn AI identifies early-stage startup founders and companies through signals like incorporation filings, GitHub activity, social media follows, and hiring pages before they appear in public directories.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSan Francisco, US

Vishnu Sampathkumar(CEO)inShiv Kampani(Founder)in

Co-investorsY CombinatorAmino CapitalHaystackMetsu CapitalNexus Venture PartnersPhosphor Capital+2 more

Avelis Healthavelishealth.comin𝕏

Avelis audits medical claims using AI and clinician review to identify billing, coding, and contract errors for health plans and third-party administrators.

AI & Machine LearningHealthtechInsurTechNew York City, US

Angel Onuoha(CEO)inAhmad Shehu(CTO)in

Co-investorsY CombinatorGFT VenturesMaiora Rebel VenturesZAKA VCSunset Venture Partners

Aviron Interactiveavironactive.comin𝕏Seed

Aviron manufactures interactive fitness equipment including rowing machines, exercise bikes, and treadmills that incorporate game elements and streaming entertainment to motivate workouts.

ConsumerGamingHardwareWellness & FitnessToronto, CA

Andy Hoang(Founder)inBinh Nguyen(Human Resources)Bao Ho(CTO)

Co-investorsBehind Genius VenturesBrighter CapitalPicks and Shovels (Picks & Shovels)PioneerSamsung NextY Combinator+7 more

Avoca Systemsavocasystems.cominSeed

Avoca provides an operational intelligence and automation layer for radiology clinic networks, handling patient calls, referrals, and bookings across channels 24/7 and integrating with existing RIS systems.

AI & Machine LearningDigital HealthHealthtechSan Francisco, US

Campbell Mercer-Butcher(CTO)inMax Shand(CEO)in

Co-investorsY CombinatorZ-FellowsZero IndexBlast.ClubLyra Capital Pty LtdRobinhood

Axleaxle.insurein𝕏

Axle provides instant access to insurance data for fleet managers, asset lenders, and gig platforms, allowing them to verify coverage and reduce risk in seconds rather than hours.

AI & Machine LearningDeveloper ToolsEnterprise SoftwareFintechInsurTechNew York City, US

Cameron Duncan(CEO)inNihar Parikh(CTO)inArmaan Sikand(Founder)inAagam Vakil(Product Engineer)Almas Myrzatay(Senior Product Engineer)Sam Shatzkin(Product Engineer)

Co-investorsBLH Venture Partners, LLCGradient VenturesSoma CapitalY CombinatorAccelBase10 Partners+6 more

Axle Healthaxlehealth.comin𝕏

Axle Health provides a logistics and scheduling platform for home health care providers that optimizes clinician routing, staffing decisions, and patient coordination through real-time data and predictive forecasting.

AI & Machine LearningDigital HealthHealthtechLogistics & Supply ChainSaaSLos Angeles, US

Adam Stansell(Founder)inConnor Hailey(Founder)Ian Arko(Head of Engineering)Andii Lee(Head of People and Talent)Alexa Sarachan(Operations Coordinator)

Co-investorsF-Prime CapitalLightbankPear VCPioneerSoma CapitalTRAC (Third Round Analytics Capital)+1 more

Bambooinvestbamboo.comin𝕏Seed

Bamboo is an investment platform that enables users in Africa to invest in U.S. stocks, ETFs, real estate investment trusts, and other asset classes with minimum investments starting at $10.

FintechLagos, NG

Richmond Bassey(Founder)inYanmo Omorogbe(Founder)in

Co-investors2080 VenturesAjim CapitalExpansion Venture CapitalFuture AfricaGreycroftHoaQ+23 more

BelozFibeloz.com.mxinSeed

A lending platform operating in Mexico that provides loans to consumers, incorporating AI technology into its credit and operations infrastructure.

FintechMexico City, MX

Debashish Bhadra(Founder)inGianfranco Gentille(Founder)inEduardo Lopez Amaya(CTO)

Co-investorsY CombinatorGluwaInnogen Capital VenturesLatitud VenturesLiquid VenturesMeasured+7 more

Betterhalfbetterhalf.aiin𝕏Mar 2023 · $8.5M

Indian matrimony and matchmaking app that helps users find genuine and verified profiles for marriage.

ConsumerMarketplacesSocialBengaluru, IN

Pawan Gupta(Founder)in

Co-investorsBVP InvestorsEmles Venture PartnersGaingelsMaiora Rebel VenturesMplier CapitalNurture Venture Partners+12 more

Billow AI Labsthebillow.aiin𝕏Seed

Billow is an AI/ML platform designed for regulated industries.

AI & Machine LearningEnterprise SoftwareFintechSan Francisco, US

Joanathan McIntosh(CEO)inPhilip Moniaga(CTO)in

Co-investorsRedbud Trail GroupVela PartnersY CombinatorBlast.ClubFounders FactoryGusto+2 more

Blank Bioblank.bioin𝕏Seed

Blank Bio develops RNA foundation models for precision oncology, helping pharmaceutical companies identify the right patients for clinical trials and predict disease progression using bulk RNA-seq data.

AI & Machine LearningBiotechHealthtechSan Francisco, US

Jonny Hsu(CEO)inPhilip Fradkin(Founder)inIan Shi(CTO)inJonathan Hsu(Founder)Ruian Shi(Founder)

Co-investorsAlumni VenturesIA Seed VenturesInvestorXLeonis CapitalMaiora Rebel VenturesRipple Ventures+12 more

Boom AIuseboom.aiinSeed

Boom is an AI customer service platform that automates customer interactions across collections, retention, onboarding, and sales.

AI & Machine LearningE-commerceEnterprise SoftwareSaaSSan Francisco, US

Juan Casian(CEO)inSergio Garcia(Founder)inJose Toscano(CTO)in

Co-investorsY CombinatorBlast.ClubGonzalez y NavarroHi VenturesMatrixNicoya+3 more

Bravibravi.appinSeed

Bravi provides an AI phone receptionist and chat assistant for home service businesses that automatically handles incoming calls, qualifies leads, and integrates with CRM systems to capture and manage sales opportunities.

AI & Machine LearningEnterprise SoftwareSaaSParis, FR

Anas Bouassami(CEO)inPierre-Habte Nouvellon(Founder)in

Co-investorsY Combinatorallo garantBlast.ClubBpifranceC Square CapitalEmbedding VC+2 more

Cactusoncactus.comin𝕏Seed · Nov 2025 · $7M

Cactus automates lead response and customer re-engagement for home service businesses, ensuring calls are answered within 60 seconds and dormant CRM contacts are converted into repeat bookings.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

Ajith Govind(CEO)inAvinash Joshi(CTO)inWendy Moore(Recruiting)

Co-investorsBlast.ClubGaingelsInvestorXMaiora Rebel VenturesMarketplacePioneer+28 more

Cactus Computecactuscompute.comin𝕏Nov 2025 · $7M

Cactus Compute provides an on-device AI runtime for speech, vision, and text models that automatically routes between on-device and cloud inference based on complexity and audio quality.

AI & Machine LearningCloud ComputingDeveloper ToolsEnterprise SoftwareSan Francisco, US

Roman Shemet(CEO)inHenry Ndubuaku(CTO)inRoman Shemet Henry Ndubuaku(Founder)

Co-investorsAntigravity CapitalEight CapitalTranspose Platform ManagementY CombinatorBAG VenturesBatch Ventures+9 more

Cair Healthcairhealth.cominSeed

Cair Health provides agentic automation software for revenue cycle management (RCM) in healthcare, helping billing teams process claims and documentation faster and more accurately.

AI & Machine LearningEnterprise SoftwareHealthtechSan Francisco, US

Shehbaz Virk(Founder)inIshan Balakrishnan(Founder)in

Co-investorsEvolution VenturesMaiora Rebel VenturesSoma CapitalTRAC (Third Round Analytics Capital)Y CombinatorExit Ventures+10 more

Callab AIcallab.aiin𝕏Seed

Callab provides AI voice agents for enterprise contact centers that integrate with existing PBX, SBC, and telephony infrastructure via SIP without migration.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

Haithem Kchaou(CEO)inChehir Dhaouadi(CTO)in

Co-investorsY CombinatorP1 VenturesZero Index216 CapitalDFS LabFlourish Ventures+6 more

Capi Moneycapimoney.cominSeed · Feb 2025

Capi Money provides cross-border payment services for importers in emerging markets, enabling them to pay suppliers in multiple currencies with settlement within 24 hours.

FintechLondon, GB

Mitch Riley(CEO)inScott Liddle(Founder)inMitchell James Riley(Executive Officer, Director)Thomas Watson(Director)Luke O'LearyinTom Watson(CTO)in

Co-investorsfirstminute capitalFund I, a series of Africa FinTech Collective, LPKima VenturesMaiora Rebel VenturesMusha VenturesPioneer+14 more

Capitol AIcapitol.aiin𝕏Series A

Capitol builds sovereign AI infrastructure for regulated institutions including financial services firms, professional services organizations, and government agencies.

AI & Machine LearningData & InfrastructureEnterprise SoftwareFuture of WorkGovTechWashington, US

Shaun Modi(CEO)inthomas hallaran(CTO)inEzra Lee(Founder)Tom Hallaran(Founder)Nikolay Saveliev(Creative Director)Elizabeth Cardenas(Executive Assistant)

Co-investorsY CombinatorDesigner FundFailup VenturesImagination CapitalInvestorXMaiora Rebel Ventures+6 more

Cardamoncardamon.aiinSeed

Cardamon provides regulatory compliance software for compliance and legal professionals.

AI & Machine LearningEnterprise SoftwareFintechLegalTechSaaSLondon, GB

Areg Nzsdejan(CEO)inDmytro Astakhov(Founder)inDmytro Astakhov(CTO)in

Co-investorsDniproFounders NetworkMaiora Rebel VenturesY CombinatorAliaksandr HudzilinAndreessen Horowitz+3 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Aleph SolutionsBendFinbloxHazeltechIntently

Browse all 387 investments with full details →

▶187 more tracked companies

MarketForceMarr LabsmdhubMecha HealthMemory StoreMendralMercatorMeritMeshMesmerMetalMilioMindedMinicorMinimal AIMochatradeMochiModelenceMoritzMossMossMotivesMudafyMultiplierMunifyMy NextDermaNarrativeNautilusNitrodeNo CapNOSO LABSNovigNuhaOffDealOmnistrateOnshoreOpalite HealthOpenWorkOrbital OperationsOrgOrgoutloud.aiOutsetOverstand LabsPaceline BioPacificPair AIPalisadePangoPantaPantorePantore PayPartnerHQPayCaddyPayflowPayflowPaziPeakfloPeebaPeppr AIPermitPortalPerseus DefensePicklePicklePickle AIPillarPointOnePranaProglixPromoted.aiProvenMetalPythagoraQueenlyRapidfolioRavionReacherRecall.aiRedcliffe LifetechReformRelvy AIRepromptRewbiReworkdRiderRisely AIRocketableRoom ServiceRuma CareRuvoSalaryBookSamora AISavaSaveINScalar FieldSeaboundSeals AISekiloSellRazeSenso.aiSentrialSequinSerif HealthShekel MobilitySIDSitefireSitennaSlauth.ioSmoothSohar HealthSolum HealthSoniaSourcebotSphinxSphinxSpine AISpotPaySPRXStackshineStarlingStoryboarderStrong ComputeStuddySunflowerSureBrightSygaldry TechnologiesSymphonySynapticureSync Labssync.SynclyTalentropy.aiTallyTandemTaxGPTThetaTheyaTogether SoftwareToothy AITrackingplanTranchTravoTrebloTrigger.devTrueClaimtruemetricsTrustyTryNearbyTuring Labs Inc.TypewiseUltraUltrasoniumUnderground CellarUnpopular VenturesUnravel CarbonUntether LabsUplaneVaeroVaeroVahanVantelVelaVelesVellumVenturaVerifiableVeritusVernius Systems, Inc.VersaVerse TherapyVideoGenVitalizeVitalize CareVoicepanelVoxel EnergyVoxOps AIWallbitWallbit PayWareIQWattson HealthWavedashWaylineWritesonicWyvernYassirYuma AIZ1ZavoZuma

Portfolio news

latest coverage across their companies

Frequently asked questions

How many investments has Rebel Fund made?
Rebel Fund has 387 tracked investments, 17 of which have exited, including 25 dated in the last 24 months.
What stage does Rebel Fund invest at?
Rebel Fund invests at the Pre-Seed, Seed, Series A stages.
What is Rebel Fund's typical check size?
Rebel Fund typically writes checks of $100K – $5M.
What sectors does Rebel Fund focus on?
Rebel Fund focuses on AI & Machine Learning, Enterprise Software, Fintech, SaaS, Sector Agnostic.
Where is Rebel Fund located?
Rebel Fund is headquartered in San Francisco, US.
Does Rebel Fund lead rounds?
Rebel Fund typically participates in rounds rather than leading them.
Who does Rebel Fund co-invest with?
Rebel Fund most often shares deals with Y Combinator, Maiora Rebel Ventures, Pioneer, among 581 tracked co-investors.

Co-investors · 33

Alumni Ventures

Alumni Ventures (AV) is a venture capital firm that co-invests alongside lead VCs in startups, backing founders with capital and access to a large investor and operator community.

$100K – $10M
Craft Ventures

Craft Ventures is a venture capital firm run by a team of former founders, operators, and investors who partner closely with founders to help build and scale technology companies.

$50K – $50M
Afore Capital

Afore Capital is a $500M pre-seed venture fund that invests in pre-traction, early-stage companies, leveraging product and investment expertise to support founders from day zero.

$500K – $2M
Todd and Rahul’s Angel Fund

Todd and Rahul's Angel Fund is an early-stage investment vehicle run by founders Todd Goldberg and Rahul Vohra, who write $300k-$500k checks into early-stage startups and help with product/market fit, go-to-market, and future fundraising.

$300K – $500K
Wing

Wing Venture Capital is an early-stage venture fund backing founders building the AI-first economy across infrastructure, enterprise, physical, domain-specific, security, and healthcare AI.

$200K – $20M
305 Ventures

305 Ventures is a founder-run venture capital firm that invests in pre-seed and seed stage (0 to 1) companies globally.

Founders Fund

Founders Fund is a venture capital firm that backs technology companies building transformative products.

Both backed · 2
$500K – $5M
Bond Capital Management

Bond is a venture capital fund spun out from Kleiner Perkins that combines Mary Meeker's famous multi-hundred-page "Trends" reports with late-stage investing, positioning itself as both a macro research house and capital provider for category-defining Internet and software businesses. The fund operates with a small, senior-heavy partnership that blends operators and growth investors, focusing on companies that have already proven product-market fit and helping them architect global expansion and IPO readiness.

Both backed · 2
$100K – $25M
Paradigm

Paradigm is a frontier technology investment firm that builds and invests in early-stage companies across crypto, AI, robotics, and other emerging technology areas.

Both backed · 2
$1M – $100M
Entrepreneur First

Entrepreneur First (EF) is a talent investor that helps individuals build and launch startups, providing support such as US visa guidance, office space, fundraising preparation, and investor introductions culminating in a San Francisco Demo Day.

Both backed · 2
$1M – $7M
Utopian Ventures

An intentionally lean, early-stage venture firm that backs founders building narrow 'wedge' products in software and infrastructure that can expand into market defaults. It emphasizes software that changes how markets work and runs itself using structured data, automation, and agents.

Both backed · 2
$25K – $200K
▶21 more co-investors

Altimeter CapitalHouseBenchmarkFoundation CapitalUnion Square Ventures (USV)Addition75 & SunnyPlayground GlobalSmash CapitalStrawberry Creek VenturesMVP VenturesPortal VenturesKrakenGreat Oaks Venture CapitalNextGen Venture PartnersSaga VenturesBrand Foundry VenturesCity LightLooking Glass CapitalHatteras Venture PartnersType One Ventures

Firms observed investing alongside Rebel Fund, from public investor directories. Shared companies are the overlap with Rebel Fund's recorded portfolio.

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