Fundraising Fox

Rebel Fund

Venture capital

San Juan ยท Pre-Seedโ€“Series A ยท 1 people tracked

Also known as REBEL MANAGEMENT, LLC

โœจ Fox Verdict
Sign up to see your fit

Investment thesis

Leveraging an elite network of Y Combinator alumni, this venture fund offers founders access to alumni connections and expertise as its primary differentiator.

Source: firm website, verified Aug 7, 2026.

Stage
Pre-Seedโ€“Series A
Check
$100K โ€“ $5M
HQ
San Juan, CA, US
Leads rounds
Follows
Instruments
Equity
Founded
2019
Private fund assets
$121M
VC funds
4
Tracked investments
69

Team ยท 1 people

from public directories
Jonathan Hirschยท Partnerin๐•

What they invest in

from 61 of 69 portfolio companies

AI & Machine Learning ร—35Enterprise Software ร—35SaaS ร—18Fintech ร—16Data & Infrastructure ร—10Healthtech ร—9Developer Tools ร—8Advanced Manufacturing ร—6

HQs:United Statesร—41Canadaร—3United Kingdomร—2Indiaร—2Nigeriaร—2Brazilร—1

Investments ยท 69 tracked

founders shown can be your intro path
Openmartopenmart.comin๐•โœ“ 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(Founder)inKathryn Wu(Founder)in

Openmartopenmart.aiin๐•โœ“ verified

Openmart is an AI-powered platform that automates lead discovery, contact enrichment, and sales outreach preparation for businesses targeting local retailers and SMBs.

AI & Machine LearningData & InfrastructureSaaSSales Tech

Kathryn Wu(Co-founder)Richard He(Co-founder)

Scanbasescanbase.comin๐•โœ“ 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

Superagentsuperagent.shin๐•โœ“ 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(Founder)inIsmail Pelaseyed(Founder)in

AccessOwlaccessowl.ioin๐•

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)in

Advanced Metal Researchadvancedmetalresearch.comin๐•

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(Founder/CEO)inJulian Fried(Founder)inStephen Lin(Founder)in

Aegisaegishealth.usin๐•

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 & Co-Founder)inAarav Bajaj(Founder)inDhanya Shah(Founder)in

Agentic Labsagenticlabs.comin๐•

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(Founder)in

AgentPhoneagentphone.aiin๐•

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(Founder)inMeet Modi(Founder)in

Airbyte (W20)airbyte.ioin๐•

Airbyte provides a context layer for agents and pipelines, enabling connection and data integration capabilities.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise Software

AiSDRaisdr.comin๐•

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(Founder/CEO)inOleg Zaremba(Founder)in

AIVideo.comaivideo.comin๐•

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

Albedoalbedo.space
Alepheealephcrm.com
Alga Biosciencesalga.bioin๐•

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

Advanced ManufacturingAgTechBiotechClimate TechSan Francisco, US

Alex Brown(Co-founder and CEO)Daria Balatsky(Founder)inCaroline McKeon(Founder)in

Algen Biotechnologiesalgenbio.comin๐•

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)

Almond (X25)almondbot.comin๐•

Almond builds Axol, a dual-arm robot designed for developers and builders working on physical AI applications, offering precise real-world manipulation with high reach, range of motion, and load capacity.

AI & Machine LearningHardwareRoboticsSan Francisco, US

ALT TEXthealttex.comin๐•

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

Amilozamiloz.com
Anaraanara.comin๐•

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(Founder)in

Anchorgetanchor.coin๐•

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)in

Andcouseandco.comin๐•

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(Founder, CEO)inDavid Lee(Founder)inMichael Lemm(Founder)in

Andromeda Surgicalandromedasurgical.comin๐•

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)

Anfinanfin.vnin๐•

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)in

ร…ngstrรถm AIangstrom-ai.comin๐•

ร…ngstrรถm 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(Founder)in

Apolinkapolink.spacein๐•

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(Founder)in

Apollo Groupapollo-group.ioin๐•

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

Archonarchon.incin๐•

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(Founder and CEO)in

Aristarist.coin๐•

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)in

Armilla AIarmilla.aiin๐•

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)Raif Barbaros(Director)

Array Labsarraylabs.ioin๐•

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

Atlaatla-ai.comin๐•

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)in

Aviron Interactiveavironactive.comin๐•

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)in

Axleaxle.insurein๐•

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.

Developer ToolsEnterprise SoftwareFintechInsurTechNew York City, US

Cameron Duncan(Co-Founder & CEO)inNihar Parikh(Co-founder & CTO)inArmaan Sikand(Founder)in

Axle Healthaxlehealth.comin๐•

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)in

Bambooinvestbamboo.comin๐•

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

Bendbend.green
Betterhalfbetterhalf.aiin๐•

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

ConsumerMarketplacesSocialBengaluru, IN

Capi Moneycapimoney.comin๐•

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(Co-founder / CEO)inScott Liddle(Founder)in

Caseflood.aicaseflood.aiin๐•

Caseflood.ai provides intake software for high-end law firms, helping them manage client onboarding and case intake processes.

AI & Machine LearningEnterprise SoftwareLegalTechSan Francisco, US

Ethan Hilton(Founder)inTolen Schreid(Founder)in

Cedaliocedalio.comin๐•

Cedalio builds AI agents for accounts payable and procurement that automate invoice processing, validation, and fiscal compliance across multiple workflows.

AI & Machine LearningEnterprise SoftwareFintechSan Francisco, US

Luciana Reznik(Founder)inNico Magni(Founder)inGuido Marucci Blas(Founder)in

Circlebackcircleback.aiin๐•

Circleback is an AI-powered meeting assistant that automatically generates notes, captures action items, and enables search across recorded conversations.

AI & Machine LearningEnterprise SoftwareFuture of WorkSan Francisco, US

Ali Haghani(Founder)inKevin Jacyna(Founder)in

Corveracorvera.aiin๐•

Corvera builds a context layer for AI-native consumer packaged goods (CPG) brands that unifies existing brand data and makes it accessible to AI tools via MCP protocol.

AI & Machine LearningEnterprise SoftwareSaaSSan Francisco, US

Christopher Kong(Founder)inDirk Breeuwer(Founder)inMatthew Collins(Founder)in

Diditdidit.mein๐•

Didit provides identity verification and KYC/KYB infrastructure for organizations worldwide, offering a programmable API with real-time fraud detection, deepfake protection, and support for 48+ languages.

CybersecurityData & InfrastructureEnterprise SoftwareFintechSan Francisco, US

Alberto Rosas(Founder)inAlejandro Rosas(Founder)in

Fastgenfastgen.comin๐•

Fastgen provides a drag-and-drop platform for building custom APIs and data workflows, with an integrated PostgreSQL database that handles data operations for applications.

Developer ToolsEnterprise SoftwareNew York City, US

Mike Mahlkow(Founder)inDavid Nordhausen(Founder)inConstantin Schreiber(Founder)in

Freyafreyavoice.aiin๐•

Freya is an AI-powered voice platform that manages inbound and outbound customer service calls in multiple languages, with applications in sales, support, debt collection, and appointment scheduling.

AI & Machine LearningEnterprise SoftwareFintechSaaSSan Francisco, US

Tunga Bayrak(Founder)inTomas Nepala(Founder)in

Honeydewhoneydew.aiin๐•

Honeydew provides a semantic layer for enterprise data warehouses that unifies business logic and context across AI agents and business intelligence tools.

AI & Machine LearningData & InfrastructureEnterprise SoftwareSaaSTel Aviv-Yafo, IL

David Krakov(Founder)inBaruch Oxman(Founder)inLiron Slonimsky-Shemy(Founder)in

Lyralyrahealth.comin๐•

Lyra provides mental health care services through a network of evidence-based providers, combining clinical expertise with technology to deliver accessible, quality care for employers and health plans.

Digital HealthEnterprise SoftwareHealthtechHR TechMental Health

Alethea Varra(Vice President of Clinical Care)Jennifer Schulz(Chief Executive Officer)Elaine Yang(Executive Officer)Bryan Roberts(Director)James Slavet(Director)David Ebersman(Executive Officer, Director, Promoter)

Lyrapaywithlyra.comin๐•

Lyra provides virtual payment cards that can be funded with cryptocurrency, enabling users to make purchases and pay subscriptions across the internet.

ConsumerCrypto & Web3Houston, US

Griffin Wheeler(Founder)in

Modelencemodelence.comin๐•

Modelence is an AI-powered app builder that generates production-ready, full-stack web applications from natural language prompts, including authentication, database, and deployment.

AI & Machine LearningData & InfrastructureDeveloper ToolsEnterprise SoftwareSaaSSan Francisco, US

Aram Shatakhtsyan(Co-Founder & CEO)inEduard Piliposyan(Co-Founder & CTO)in

Offdealoffdeal.ioin๐•

OffDeal is an AI-powered investment bank that provides M&A advisory services to small business owners seeking to exit their businesses.

AI & Machine LearningEnterprise SoftwareFintechNew York City, US

Ori Eldarov(Founder)inAlston Lin(Founder)in

Orbital Operationsorbitalops.techin๐•

Orbital Ops develops propulsion systems and related aerospace hardware for airborne vehicles.

Advanced ManufacturingDeep TechDefense TechHardwareSpace TechLos Angeles, US

Ben Schleuniger(Founder)inRoss Doherty(Co-Founder & COO)inHunter

outsetoutset.aiin๐•

Outset is an AI-powered research platform that combines conversational AI, behavioral intelligence, and emotional analysis to conduct moderated research interviews and synthesize consumer insights at scale across multiple languages and countries.

AI & Machine LearningData & InfrastructureEnterprise SoftwareMarketing TechSaaSSan Francisco, US

Aaron Cannon(Founder)inMichael Hess(Founder)in

Precznfintech.globalin๐•
Rocketablerocketable.comin๐•

Rocketable acquires software businesses and automates their operations by replacing human staff with AI agents across functions; the company develops tools to coordinate these agents toward shared business objectives.

Enterprise SoftwareSan Francisco, US

Alan Wells(Founder)in

Ruvoruvo.comin๐•

Ruvo provides a mobile app for Brazilian users to send, spend, and save money across USD, BRL, and USDT with no markups or hidden spreads.

Crypto & Web3FintechSรฃo Paulo, BR

Alec Howard(Co-Founder & CEO)inMichael Mason(Founder)inJoรฃo Alvarenga

SaveINsavein.moneyin๐•

SaveIN operates a marketplace connecting Indian patients with nearby healthcare providers and offers installment payment plans for medical services.

FintechHealthtechMarketplacesWellness & FitnessDelhi, IN

Jitin Bhasin(Founder)inGaurav Luthra(Founder)in

Sohar Healthsoharhealth.comin๐•

Sohar Health is a front-end revenue cycle management platform that uses technology and machine learning to automate insurance claims processing for healthcare providers.

AI & Machine LearningDigital HealthEnterprise SoftwareHealthtechNew York City, US

Dr Ashish Mandavia MD(Founder)inLucas Gordon(Founder)inAshish Mandavia(MD)in

Portfolio news

latest coverage across their companies

Frequently asked questions

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 โ€“ $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 Juan, US.
Does Rebel Fund lead rounds?
Rebel Fund typically participates in rounds rather than leading them.

Co-investors ยท 32

Benchmark

Benchmark is a venture capital firm with offices in San Francisco and Woodside that invests in early-stage startups.

Both backed ยท 1
$100K โ€“ $30M
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.

Both backed ยท 1
$500K โ€“ $2M
Altimeter Capital

Altimeter is a technology-focused investment firm founded by an entrepreneur, investing in both public and private markets and partnering with companies across all growth stages, including their transition into public markets.

Both backed ยท 1
$1M โ€“ $25M
Andreessen Horowitz

Andreessen Horowitz's Strategic Partnerships page describes collaborations that connect its portfolio companies with established institutions to help scale and deploy their technology.

$500K โ€“ $50M
Founders Fund

Founders Fund is a venture capital firm that invests in companies building transformative technologies across defense, space, data analytics, and other frontier sectors.

$500K โ€“ $5M
Craft Ventures

Craft Ventures is a venture capital firm founded and run by former founders, operators, and investors who provide startups with hands-on support, senior talent access, and proven scaling playbooks.

$50K โ€“ $50M
Alumni Ventures

Alumni Ventures (AV) is a venture firm that gives accredited individual investors access to professionally managed, diversified venture portfolios by co-investing alongside leading lead VC firms. It offers annual funds, syndicate deal-by-deal investing, and various investor clubs.

$100K โ€“ $10M
Foundation Capital

Foundation Capital is a venture capital firm that invests in companies at their earliest, most formative stages, with a strong belief in the transformative power of design.

$250K โ€“ $15M
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.

Union Square Ventures (USV)

Union Square Ventures is a venture capital firm based in New York City that invests in companies at the edge of large markets being transformed by technological and societal pressures.

$1M โ€“ $20M
Great Oaks Venture Capital

Great Oaks Venture Capital is a New York-based early-stage investor that partners with founders at the earliest stages of company building across the United States.

$50K โ€“ $500K
Addition

Addition is a venture capital firm that invests in early and growth-stage tech companies.

$1M โ€“ $500M
โ–ถ20 more co-investors

Bond Capital ManagementTodd and Rahulโ€™s Angel FundParadigm75 & SunnyWingEntrepreneur FirstNextGen Venture PartnersSaga VenturesBrand Foundry VenturesOyster VenturesPlayground GlobalHouse305 VenturesSmash CapitalStrawberry Creek VenturesMVP VenturesLooking Glass CapitalHatteras Venture PartnersPortal VenturesType One Ventures

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

Similar investors

Featured in lists