Asset ManagerRIA · CRD 308059SEC-RegisteredPrivate Fund Adviser

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Six Twelve Capital Management

Don Miller's Six Twelve Capital writes complex, middle-market credit where speed matters.

Six Twelve Capital Management

SIX TWELVE CAPITAL MANAGEMENT LLC is an SEC-registered investment adviser with its principal office in Boston, MA. The firm provides investment advice to individuals, institutions, and family offices. It is registered with the Securities and Exchange Commission.

General information

Firm type

Asset Manager

Year founded

2017

AUM

Undisclosed

Location

Region

North America

Country

United States

City

Boston

Corporate office

Minneapolis, MN, United States

Principals

Don J. P. Miller

Founder & Managing Partner

Sector focus

Private CreditReal EstateSecondaries & Special Situations

Frequently asked questions

Who runs investment decisions at Six Twelve Capital?

Don Miller, the firm's founder and managing partner, drives all investment decisions. Miller built Six Twelve specifically to avoid layers of committee approval, giving him sole investment discretion. This structure is designed for speed in complex credit negotiations.

How does Six Twelve source its deal flow?

The firm relies on a network of regional bankers, turnaround consultants, and private-equity sponsors in the Midwest who encounter credits too small or too complex for institutional desks. Miller's own relationships, built over a career in specialty finance, are the primary funnel, making sourcing highly relationship-dependent.

Is Six Twelve Capital a single-family office?

No. Six Twelve operates as an independent specialty-finance and private-credit manager. While it shares some governance characteristics with family offices — lean committee structure, permanent capital patience — it is not known to manage the wealth of a single named family.

What types of lending does Six Twelve specialize in?

The firm focuses on asset-based lending, commercial real estate bridge loans, and secondary purchases of loan portfolios. It targets situations where borrowers need speed and lenders need to understand non-standard collateral, such as equipment, receivables, or litigation claims.

What is Six Twelve's known posture on co-investments?

Six Twelve primarily underwrites and holds its own originated credits. It is not widely known to syndicate or invite co-investors into its core lending deals, preferring a bilateral relationship with borrowers that avoids the delays of syndication.

Which sectors does Six Twelve explicitly avoid?

The firm tends to avoid venture-stage lending and pure-equity technology exposure. Its credit model requires hard assets, contractual cash flows, or real property to underwrite, so pre-revenue or speculative-growth companies fall outside its mandate.

Why is the firm based in Minneapolis?

Minneapolis places the firm at the center of a dense middle-market economy with fewer competing alternative lenders than Chicago or New York. This geographic choice gives Six Twelve access to a wide pool of family-owned manufacturers, regional real estate developers, and niche financial-service companies.

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