Main Street Research

The firm practices a value-oriented, long-only equity strategy grounded in fundamental analysis. It seeks companies with durable competitive moats, strong balance sheets, and shareholder-aligned management, purchased at a discount to intrinsic value. Portfolios are concentrated, typically holding 25 to 35 names, and are managed with low turnover to prioritize tax efficiency for long-term taxable investors.

Main Street Research serves high-net-worth individuals, family trusts, corporate pension plans, and non-profit endowments. The firm's Sausalito base places it within reach of the significant concentrated wealth in Marin County and the broader San Francisco Bay Area. Its service model is built around direct, long-duration relationships with a limited number of clients.

Yes. While the firm's primary expertise is in equity selection, it constructs investment-grade fixed-income portfolios for clients whose circumstances require income generation or a lower-volatility capital base. The fixed-income sleeve emphasizes credit quality and duration management over yield-chasing, consistent with the firm's broader capital-preservation ethos.

Portfolios are built from the bottom up, with position sizes driven by analyst conviction rather than benchmark weights. The firm does not attempt to hug an index; instead it concentrates capital in its highest-conviction ideas. Portfolio turnover is deliberately low, as the investment holding period is measured in years, not quarters. This results in meaningful tracking error relative to broad market averages.

The firm's sole office is in Sausalito, California, a small city in Marin County. While its physical presence is local, it manages assets for clients across the United States through a registered investment advisor structure. The firm's website is www.ms-research.com.