Ballmer Group
Steve Ballmer's Single Family Office · Bellevue, Washington
$150B estimated AUM
14 contacts at Ballmer Group
Names & contact details for subscribers- Chief Executive Officer
- Executive Director, Strategy & Operations
- Executive Director, National Impact
- Senior Portfolio Manager
- Director, Grantmaking Systems & Services (Ballmer Philanthropies)
- + 9 more contacts
AUM figures are estimates compiled from public sources. How we source our data.
About Ballmer Group
Ballmer Group is the family office of former Microsoft CEO Steve Ballmer and his wife Connie Ballmer, legally structured as Ballmer Giving LLC and based in Bellevue, Washington. Founded in 2015, shortly after Steve retired from Microsoft, it is best characterized as a philanthropic investment company: its stated purpose is to advance economic mobility, and its "investments" are overwhelmingly grants and program-related commitments rather than conventional venture or private-equity deals.
Grantmaking is concentrated in three core geographies — southeast Michigan, Washington state, and Los Angeles County — alongside national commitments in early learning, education, housing, and criminal justice. On the personal-investment side, Steve Ballmer has stated that more than 80% of his portfolio remains in Microsoft stock, with the balance largely in broad index funds.
Explore more of the largest single family offices.
Family office research
All articles- Exchange Funds vs. 351 ETFs: How Founder Families Diversify Without a Tax BillHow Section 721 exchange funds, Section 351 ETF seeding, charitable remainder trusts and direct indexing let founder families diversify concentrated stock, and what the IRS's September 2026 guidance changes for advisers.21 min read
- The SEC Family Office Exclusion After Archegos: What Family Offices Still DiscloseWhat Rule 202(a)(11)(G)-1 exempts and what it does not: 13F, 13D/13G after the 2023 amendments, Section 16, Form 13H, Form PF, Form SHO and withdrawn swap reporting, with Archegos as the case study.20 min read
- Raising Capital from Single Family Offices: A Field Guide for Alternatives ManagersHow single family offices actually decide, how they differ from endowments and RIAs as LPs, the Reg D, accredited investor, broker-dealer and marketing rule guardrails, and a step-by-step research and outreach process.20 min read
Frequently Asked Questions
What is Ballmer Group?
Ballmer Group is a single family office associated with Steve Ballmer, based in Bellevue, Washington.
Where is Ballmer Group located?
Ballmer Group is based in Bellevue, Washington.
How much does Ballmer Group manage?
Ballmer Group is estimated to oversee approximately $150B in assets. As a private family office it files no public AUM disclosures, so figures are third-party estimates compiled from public sources.