Single Family OfficeRIA · CRD 123258SEC-Registered

Updated:

P.W.B.

P.W.B., INC. is an SEC-registered investment adviser with approximately $4 million in regulatory assets under management. The firm advises clients on...

P.W.B.

P.W.B., INC. is an SEC-registered investment adviser with approximately $4 million in regulatory assets under management. The firm advises clients on investment matters. It is subject to SEC oversight.

General information

Firm type

Single Family Office

Year founded

1992

Location

Region

North America

Country

United States

City

Minneapolis

Corporate office

Minneapolis, MN, United States

Principals

Whitney MacMillan

Former Chairman & CEO, Cargill; principal, P.W.B.

W. Duncan MacMillan

Director, Cargill; principal, P.W.B.

Sector focus

Private CreditReal EstateHedge FundsPrivate EquityVenture Capital

Frequently asked questions

How is P.W.B. related to Cargill and the MacMillan family?

P.W.B. was founded by the late Whitney MacMillan to manage a portion of the wealth generated by his branch of the MacMillan family's stake in Cargill. Cargill, the largest private company in the U.S. by revenue, is majority-owned by the broader Cargill and MacMillan families, but P.W.B. operates independently from the company itself. It is distinct from Waycrosse, which serves as the central multi-family office for hundreds of Cargill-linked shareholders.

Who controls investment decisions at P.W.B.?

P.W.B. was historically directed by Whitney MacMillan until his death in 2020. Current investment governance has not been publicly disclosed, but oversight has likely transferred to successive family members and any appointed professional advisors within the office. The firm has not announced a named CIO or management committee publicly.

Is P.W.B. structured as a single family office?

Yes, P.W.B. operates as a discrete single family office for Whitney MacMillan's lineage, in contrast with the larger Waycrosse multi-family office. While Waycrosse serves a broad base of Cargill descendants and stakeholders, P.W.B. maintains a separate, focused mandate for one core branch of the family.

Does P.W.B. invest in direct deals or only through third-party funds?

P.W.B. employs both strategies. It makes direct investments in private credit and real estate, while also committing capital as a limited partner to external private equity, venture capital, and hedge fund managers. This hybrid approach allows the office to blend co-investment economics with diversified access to top-tier GPs.

What is P.W.B.'s relationship to Waycrosse and other MacMillan investment vehicles?

Waycrosse serves as the multi-family office and asset-management platform for a wide network of Cargill shareholders, including many MacMillan family members. P.W.B., founded by Whitney MacMillan, operates as an independent single-family office that at times co-invests alongside Waycrosse-managed funds but maintains a distinct pool of capital and a bespoke investment policy.

Does P.W.B. accept outside capital?

No, P.W.B. is a single-family office that does not accept outside investors, fundraise, or market investment products to third parties. The office deploys exclusively family capital derived from the Cargill fortune.

Where does the underlying wealth managed by P.W.B. originate?

The capital originates from the MacMillan family's ownership stake in Cargill. The company, founded in 1865, is the largest private corporation in the United States by revenue and operates globally across agriculture, commodities trading, food production, and financial services. Whitney MacMillan was the last family member to serve as Cargill's chief executive, retiring in 1995.

Profile maintained by 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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