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Warm Fund
#46 · Emerging 100 · 2026

XYZ Venture Capital

xyz.vc · San Francisco, California

“Great companies aren't born, they're made. XYZ invests in early-stage founders with exceptional execution capability, deep domain expertise, or lived experience insights.”

$10K – $5M
Check Size
Leads
Lead Tendency
$1.2B
AUM
~2 Weeks
Timeline
01Investment Thesis

They specialize in helping founders navigate the earliest stages by providing capital plus strategic operational support.

Exclusion Criteria

No consumer apps without defensible advantages, commodity marketplaces, hardware plays without differentiation, or founders without execution experience

02Investment Team
RF
Ross Fubini
Founder & Managing Partner
CH
Chauncey Hamilton
Investment Partner
AC
Art Clarke
Operating Partner
CR
Camille Ricketts
Operating Partner & Head of Marketing
JD
JeanClaude Dorsainvil
Principal
03F4 Research Brief

XYZ Venture Capital Research

Investment Thesis

XYZ Venture Capital operates under a distinctive physics-inspired framework built around three core concepts: position, velocity, and acceleration. The firm was named after founder Ross Fubini's great-grandfather Guido Fubini, a leading mathematician who worked with Albert Einstein. This mathematical foundation underpins their belief that building businesses is a complex endeavor with multiple variables working in relation to each other, much like mathematical proofs and physics.

The firm's core thesis is that "great companies aren't born, they're made" through execution and operational excellence. XYZ invests in early-stage founders with exceptional execution capability, deep domain expertise, or lived experience insights that give them unfair advantages. They specialize in helping founders navigate the earliest stages of company building by providing not just capital, but strategic operational support.

Stage Focus and Check Size

XYZ primarily invests in Pre-Seed through Series A companies:

  • Pre-Seed: Early-stage founders with ideas and unfair advantages
  • Seed: Teams with working prototypes and initial customer validation
  • Series A: Companies demonstrating strong product-market fit

Check size range: $10,000 - $5,000,000

  • Typical seed investment: $500K - $2M
  • Series A follow-ons: $1M - $5M
  • Pre-seed: $250K - $1M

The firm is known for leading rounds when they find exceptional founders, but also participates as a follow-on investor.

Sector and Industry Focus

XYZ has historically focused on three primary sectors but has evolved to pursue deeper thesis around building a "safer, stabler society":

Primary Sectors:

  1. Fintech & Payments - Modern financial infrastructure and services
  2. Enterprise Software - B2B SaaS and business productivity tools
  3. Tech-Forgotten Industries - Insurance, public sector, government technology

Emerging Focus Areas (Fund III & IV):

  • Defense Tech & Aerospace - Mission-critical defense and aerospace systems
  • Public Sector Technology - Government transformation, citizen services
  • Healthcare Innovation - Medicare modernization and healthcare delivery
  • Climate & Sustainability - Clean energy and environmental solutions
  • Manufacturing Software - Industrial modernization and automation
  • AI Infrastructure - LLM applications, AI tools, agentic systems
  • Legal Tech & RegTech - Regulatory compliance and legal services

The firm's investment philosophy centers on building a safer, stabler society where government reliably meets people's needs and private sector innovation drives quality of life improvements.

Portfolio Highlights

Since 2017, XYZ has backed 70+ companies that have created over $11 billion in aggregate value. The portfolio spans defense, public sector, enterprise software, and emerging AI categories.

Team and Leadership

Founders & Core Partners:

  • Ross Fubini - Founder & Managing Partner
  • Chauncey Hamilton - Investment Partner
  • Art Clarke - Operating Partner (formerly Apple AI/ML)
  • Camille Ricketts - Operating Partner & Head of Marketing (Notion first marketing leader)
  • JeanClaude Dorsainvil - Principal

Recent Activity and Fund Status

Fund IV Announcement (July 2024): Closed with $1.2 billion in total assets under management.

Recent High-Profile Investments (2024-2025):

  • Yurts - Led $40M Series B (AI integration for government, September 2024)
  • Chapter - Led $50M Series C (Medicare modernization, May 2024)
  • Blues - Led follow-on expansion round to $33M total (July 2025)
  • Forterra - Series C, $190M (November 2025)
  • 16 investments in 2025 alone

Fund IV is actively deploying with aggressive investment pace. The firm has demonstrated strong momentum with quarterly announcements and major industry presence in defense tech, public sector, and AI infrastructure spaces.

Decision Process and Involvement

Investment Philosophy:

  • Lead-oriented but balanced - The firm leads rounds when they identify exceptional founders
  • Founder-centric approach - Emphasis on execution mindset and lived experience
  • Early operational engagement - Get involved in customer development, hiring, and go-to-market strategy

Typical Involvement:

  • Board seat or observer rights on most investments
  • Active operational support through fund lifecycle
  • Monthly or quarterly check-ins during early growth phase

Decision Timeline: 2-4 weeks for known founders, 4-8 weeks for deeper diligence.

Geographic Focus

Primary investment regions:

  • United States - San Francisco Bay Area (HQ), Washington DC, NYC
  • Selective International - Canada and other Western markets

Founder Preferences

XYZ Seeks:

  • Technical depth and domain expertise
  • Lived experience or clear unfair advantage
  • Strong execution orientation
  • Experience scaling at large companies
  • Solving hard problems they deeply understand

Market Positioning

Why founders choose XYZ:

  1. Operational depth with partners from Apple, Palantir, Notion
  2. Network in defense, government, enterprise, and AI
  3. Patient capital for early rounds through Series A
  4. Hands-on partnership beyond capital
  5. Public sector expertise
  6. Defense/aerospace network

Fund Status

  • Fund IV Raised: July 2024
  • Assets Under Management: $1.2B
  • Deployment Rate: Very active - 16 investments in 2025
  • Market Position: Major player in defense tech, public sector, AI infrastructure
04Selected Portfolio
Aerospace & Defense
Anduril·Apex Space·Chariot Defense·Valinor
Developer Tools & Infrastructure
Blues
E-commerce & Marketplaces
Cavela·Defakto
Enterprise Software
Nominal·Rune Technologies·Pryzm·Libretto·Airspace Intelligence·Felix·NationGraph·Clarasight·Peregrine
Fintech & Payments
Venn·Taxwire·Stream
Healthcare & Digital Health
Mindset·Conduit Health·Chapter·Vital Signals·Joyful Health·Frontier Health
Insurance
Newfront Insurance
Manufacturing & Industrial
Yurts
Marketing & Adtech
AdsGency
Robotics & Automation
Ranger
Security & Cybersecurity
TurbineOne·Cape·Verkada
Other
Promise·Plot
Open the full portfolio→
05Recent Updates

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

See full activity (20) →
Published essay on infrastructure race behind European defense innovation, profiling Agon founders from Cambridge Aerospace and Anduril network.
ESSAY·xyz.vc
JUL 29, 2026
Participated in Taxwire's $25M Seed and Series A funding for AI-powered sales tax automation.
INVESTMENT·webwire.com
JUN 30, 2026
Participated in Peregrine's $250M Series D at $6.8B valuation, representing nearly 3x growth from prior Series C.
INVESTMENT·prnewswire.com
JUN 24, 2026
Invested in Frontier Health's $16M seed round for NHS AI administrative automation tools.
INVESTMENT·startup.eu+1
JUN 18, 2026
Led Plot's $10M seed round for AI social video intelligence platform serving enterprise brands.
INVESTMENT·alleywatch.com+1
JUN 2, 2026
06Frequent co-investors
FD
Forward Deployed VC
Both backed 4 of the same companies
Rune Technologies, Cape, Chariot Defense, Anduril
1V
137 Ventures
Both backed 3 of the same companies
Cape, Peregrine, Anduril
FD
Fifth Down Capital
Both backed 3 of the same companies
Verkada, Chapter, Anduril
F&
Friends & Family Capital
Both backed 3 of the same companies
Verkada, Valinor, Anduril
OV
Overmatch Ventures
Both backed 3 of the same companies
Chariot Defense, Apex Space, Nominal
Find the investors for your round→
07Similar Firms
RS
Red Swan Ventures
$250K – $100M · Pre-Seed · Seed
→
OV
OIF Ventures
$250K – $10M · Seed · Series A
→
KP
Kleiner Perkins
$100K – $150M · Seed · Series A
→
UV
Upfront Ventures
$1M – $15M · Pre-Seed · Seed
→
EG
Elad Gil
$250K – $50M · Seed · Series A
→
Quick Reference
Check Size
$10K – $5M
Stages
Pre-Seed · Seed · Series A
AUM
$1.2B
Decision
Partnership · ~2 Weeks
Warm Intro
Preferred
Involvement
Board Seat
Location
San Francisco, California
Sector Focus
Fintech & PaymentsManufacturing & IndustrialAerospace & DefenseEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & CybersecurityHealthcare & Digital Health
Models
B2B SaaSEnterprise SoftwareDefense TechPublic Sector TechFintechHealthcare Innovation
Technology
AI/MLLLMGovernment Tech
See all Fintech & Payments investors →See all Manufacturing & Industrial investors →See all Aerospace & Defense investors →
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Focus Areas
Fintech & PaymentsManufacturing & IndustrialAerospace & DefenseEnterprise SoftwareDeveloper Tools & InfrastructureSecurity & CybersecurityHealthcare & Digital Health

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F4 Intelligence Report · Last Researched July 29, 2026F4 Research Engine