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Rebel Fund

North America, California, United States, Calabasas

Description

Rebel Fund is a distinctive venture capital firm based in Calabasas, United States, that has carved out a unique niche by exclusively investing in companies emerging from the Y Combinator (YC) accelerator program. Its operational model is powered by an extensive and elite network of over 1,000 Y Combinator alumni, leveraging their collective experience and connections to support the next generation of founders.

The fund primarily focuses on pre-seed and seed-stage companies, aiming to be a crucial early partner for these high-potential startups. Rebel Fund maintains a consistent investment strategy, typically deploying a standard first check of $150,000 into each YC company it backs. This focused approach allows them to streamline their investment process and provide reliable early capital to founders.

Rebel Fund positions itself as a significant player within the YC ecosystem, claiming to be the largest investor in YC companies outside of Y Combinator itself. Beyond the initial capital, the firm emphasizes providing "smart money" by connecting portfolio companies with its vast alumni network. This includes offering mentorship, strategic guidance, and facilitating introductions to potential follow-on investors, customers, and key industry contacts.

Their model underscores the power of community and shared entrepreneurial experience, creating a supportive environment designed to accelerate the growth and success of their portfolio companies. By concentrating solely on YC alumni, Rebel Fund has built a specialized platform that aims to maximize the chances of success for founders within this highly competitive startup landscape.

Investor Profile

Rebel Fund has backed more than 204 startups, with 54 new investments in the last 12 months alone. The firm has led 6 rounds, about 3% of its total and boasts 6 exits across its portfolio.

Investment Focus Highlights

  • Concentrates on Seed, Pre Seed, Series A rounds (top funding stages).
  • Majority of deals are located in United States, India, Canada.
  • Strong thematic focus on Software, Artificial Intelligence (AI), Information Technology.
  • Typical check size: $150K.

Stage Focus

  • Seed (85%)
  • Pre Seed (10%)
  • Series A (4%)

Country Focus

  • United States (62%)
  • India (5%)
  • Canada (4%)
  • Mexico (2%)
  • United Kingdom (2%)
  • Indonesia (2%)
  • Switzerland (2%)
  • Nigeria (2%)
  • Pakistan (2%)
  • Singapore (1%)

Industry Focus

  • Software
  • Artificial Intelligence (Ai)
  • Information Technology
  • Health Care
  • Financial Services
  • Fintech
  • E-commerce
  • B2b
  • Saas
  • Internet
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FAQ

Frequently Asked Questions

Learn who this investor regularly partners with—both firms and angels—and explore their latest activity.

Who does Rebel Fund frequently co-invest with?

Gaingels
North America, Vermont, United States, Burlington
Co-Investments: 6
Soma Capital
North America, California, United States, San Francisco
Co-Investments: 23
Hi2 Venture Fund
North America, New York, United States, New York
Co-Investments: 6
Liquid 2 Ventures
North America, California, United States, San Francisco
Co-Investments: 23
Y Combinator
North America, California, United States, Mountain View
Co-Investments: 128
Pioneer Fund
North America, California, United States, San Francisco
Co-Investments: 29
Unpopular Ventures
North America, California, United States, San Francisco
Co-Investments: 11
Global Founders Capital
Europe, Berlin, Germany, Berlin
Co-Investments: 6
TRAC
North America, California, United States, San Francisco
Co-Investments: 12
Goodwater Capital
North America, California, United States, Burlingame
Co-Investments: 11

Which angels does Rebel Fund often collaborate with?

EL
North America, Florida, United States, Miami Beach
Shared Deals: 4
QY
North America, California, United States, San Francisco
Shared Deals: 2
JP
North America, California, United States, San Francisco
Shared Deals: 4
AF
North America, California, United States, San Francisco
Shared Deals: 9
Kunal Shah
Asia, Karnataka, India, Bengaluru
Shared Deals: 2
AR
North America, California, United States
Shared Deals: 3
OJ
Europe, England, United Kingdom, London
Shared Deals: 4
AA
North America, California, United States, San Francisco
Shared Deals: 6
KT
North America, California, United States, San Francisco
Shared Deals: 4
NM
North America, South Carolina, United States, Charleston
Shared Deals: 3

What are some of recent deals done by Rebel Fund?

Caseflood.ai

San Francisco, California, United States

Legal tech company that qualifies, intakes, closes, and retains clients with AI agents.

Artificial Intelligence (AI)Communications InfrastructureLaw EnforcementLegal Tech
SeedJul 30, 2025
Amount Raised: $3,200,000
OffDeal

New York, New York, United States

AI-native investment bank for buying and selling small businesses

Artificial Intelligence (AI)Information TechnologySoftware
Series AJul 29, 2025
Amount Raised: $12,000,000
Lyra

San Francisco, California, United States

AI-Native Zoom For Revenue Teams

Artificial Intelligence (AI)Software
SeedJul 24, 2025
Amount Raised: $6,000,000
Apolink

Palo Alto, California, United States

24/7 satellite connectivity in low Earth orbit

SeedJul 11, 2025
Amount Raised: $4,300,000
Vellum

New York, New York, United States

Vellum is a provider of an enterprise development platform for building mission-critical AI products.

Artificial Intelligence (AI)Developer PlatformInformation TechnologySoftware
Series AJul 10, 2025
Amount Raised: $20,000,000
Rocketable

San Francisco, California, United States

Rocketable is a software holding company that acquires existing software products and operates them using AI agents.

Artificial Intelligence (AI)SoftwareSoftware Engineering
SeedJul 1, 2025
Amount Raised: $6,500,000
Theta Software

San Francisco, California, United States

Self-Learning for AI Agents

Artificial Intelligence (AI)Software
SeedJun 15, 2025
Kaelio

Wilmington, Delaware, United States

AI operating system for healthcare organizations

Artificial Intelligence (AI)Health CareSoftware
SeedJun 15, 2025
Sygaldry Technologies

Mountain View, California, United States

Sygaldry Technologies is a tech company building quantum-accelerated AI servers to exponentially speed up AI training and inference.

SeedJun 15, 2025
Scalar Field

Seattle, Washington, United States

Reimagining how markets are analyzed and traded

SeedJun 15, 2025