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AUM

~$141B+ (Steve Ballmer's personal net worth, January 2026)

Principals

4

Principal Net Worth

$141.3B

Data Flags

None - well-documented due to high public profile; philanthropy arm highly transparent

Ballmer Family Office

SFOHigh Confidence

PO Box 1558, Bellevue, WA 98009 (Ballmer Group)

Last verified: Jan 18, 2026

Details

Source of Wealth
Microsoft (Employee #30, CEO 2000-2014)
Assets Under Management
~$141B+ (Steve Ballmer's personal net worth, January 2026)
Source File
research/organizations/ballmer-family-office.md
UID
fo-ballmer-family-office

Also Known As

Ballmer GroupBallmer Group PhilanthropyHalo Sports and EntertainmentRainier ClimateRainier Climate Group

Principals (4)

Steve BallmerCo-FounderOWNS
$141.3B
Sam BallmerOversees Rainier ClimateOWNS
Peter (Pete) BallmerStand-up comedianOWNS
Aaron BallmerN/AOWNS

Team Members (10)

Andi SmithExecutive Director, Washington & National Behavioral Health
WORKS_AT
Cynara LillyExecutive Director, Communications & Policy
WORKS_AT
Jeff EdmondsonExecutive Director, Community Impact
WORKS_AT
John GriffithExecutive Director, Strategy and Operations & National Housing
WORKS_AT
Kevin BromerExecutive Director, Head of Technology & Data Strategy
WORKS_AT
Kylee Mitchell WellsExecutive Director, SE Michigan
WORKS_AT
Loren HarrisExecutive Director, National Impact
WORKS_AT
Nicole DeCarioChief of Staff
WORKS_AT
Nina RevoyrExecutive Director, Los Angeles & National Public Safety
WORKS_AT
Terri LudwigCEO (since 2019)
WORKS_AT

Related Entities (3)

Investment & Holding CompaniesHolding Company
Microsoft Stock HoldingsHolding Company

~333M shares (~4% of MSFT), largest individual shareholder

Stock Index FundsInvestment Vehicle

S&P 500, Russell 2000 (remainder of portfolio beyond MSFT)

Known Associates (3)

Bill Gates

Cascade Investment

Long-time colleague, met at Harvard

Charles Simonyi

Microsoft

Business partner

Satya Nadella

Microsoft

Current CEO, successor at Microsoft

Relationship Strength

Loading relationships...

Sources (20)

Changelog

  • 2026-01-18Verification update - net worth confirmed $140-141B range (Forbes Real-Time); added January 2026 Aspiration lawsuit motion to dismiss news; Ballmer Group hiring at $140K-$179K salary range per ZipRecruiter
  • 2026-01-18Initial file creation with comprehensive research

Engagement & Preferences