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Multiball Capital Management
Jake Siewert runs Multiball Capital, a single-family office deploying proprietary capital across sports, media, and consumer brands from New York.
Multiball Capital Management
Jake Siewert founded Multiball Capital Management in 2014 after a career spanning the highest levels of government and finance. He served as White House press secretary under President Bill Clinton, counselor to Treasury Secretary Timothy Geithner during the financial crisis, and global head of corporate communications at Goldman Sachs. That cross-domain experience — navigating pressure-sensitive environments with incomplete information — shaped the firm's opportunistic, principals-led investment approach. Multiball deploys capital across sports franchises, media properties, and consumer brand platforms. The firm structures investments directly, often taking significant minority or control positions where Siewert's network and communications expertise can influence outcomes. Known engagements include early-stage backing of esports organization Team Liquid through its parent company aXiomatic, and participation in Marquee Sports Holdings, the ownership group for minor league baseball's Portland Sea Dogs. The firm evaluates investments across North America and Western Europe, with a bias toward assets that sit at the intersection of live entertainment, digital distribution, and consumer loyalty. The firm operates with a lean structure from New York. Siewert relies on a small internal team supplemented by sector-specific advisors drawn from his Goldman, Treasury, and media networks. March 2024: Jake Siewert joined the board of Snap Inc. as an independent director, signaling continued adjacency to media-platform governance (per Snap Inc., March 2024). Philanthropic and adjacent-vehicle structures are not publicly disclosed. Multiball's structural distinction lies in its principal's unusual career arc — the firm functions less as a traditional allocator and more as a strategic capital vehicle where communications, regulatory instinct, and brand positioning are as central to value creation as financial engineering. That profile attracts founders and family-owned sports assets seeking an investor who understands narrative risk alongside balance-sheet risk.
General information
Firm type
Single Family Office
Year founded
2014
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Principals
Jake Siewert
Managing Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Multiball Capital Management?
Jake Siewert makes investment decisions as Managing Partner. His background combines senior communications and policy roles — White House press secretary, counselor to the Treasury Secretary, and global head of corporate communications at Goldman Sachs. He applies a principals-led approach rather than relying on an investment committee structure, per the firm's public profile.
How does Multiball source its investment opportunities?
Siewert sources deals through the networks built across government, Wall Street, and media over three decades. The firm does not market itself to deal intermediaries or run a formal origination program. Its known investments — including aXiomatic (Team Liquid's parent) and Marquee Sports Holdings — emerged through direct relationships with founders and operating partners.
Does Multiball participate in fund commitments or only direct deals?
Multiball structures investments directly, avoiding fund-of-funds or blind-pool commitments. The firm takes concentrated positions — often significant minority or control stakes — where Siewert can contribute strategic communications and governance expertise alongside capital. No LP commitments to third-party funds are publicly documented.
What investment stages does Multiball typically target?
The firm operates across stages with an opportunistic mandate — it has backed an early-stage esports parent company (aXiomatic) and a mature sports ownership group (Marquee Sports Holdings). Multiball does not publish stage parameters, and its approach appears to follow the principal's assessment of an asset's narrative and operational inflection point rather than a fixed stage thesis.
Which sectors does Multiball explicitly avoid?
Multiball has not publicly stated sector exclusions. Its known investments cluster in sports, media, and consumer brands, suggesting a positive-selection bias rather than negative screening. Sectors like deep tech, life sciences, and heavy industry do not appear in its known portfolio.
Where does the underlying wealth come from?
Jake Siewert's wealth has not been publicly attributed to a single liquidity event or inheritance. His compensation across senior roles at Goldman Sachs, the U.S. Treasury, and the White House, combined with potential carried interest and investment returns, is the inferred source (Altss estimate). No founding-company exit is associated with the family office.
How is Multiball related to Jake Siewert's public board roles?
Siewert's board seats — including Snap Inc. since March 2024 — represent personal positions rather than Multiball-controlled investments. The firm does not publicly consolidate board roles or investment vehicles. Siewert maintains a separation between his personal governance commitments and the family office's proprietary capital deployment.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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