Updated:
Bank of Marin Bancorp
Bank of Marin Bancorp launched its wealth management and trust division in 1989 as an adjunct to its commercial banking charter, embedding fiduciary...
Bank of Marin Bancorp
Bank of Marin Bancorp launched its wealth management and trust division in 1989 as an adjunct to its commercial banking charter, embedding fiduciary services directly into the bank's holding company based in Novato, California. The unit operates as a multi-family office under a regulated trust-power framework, which allows it to serve as trustee, executor, and discretionary investment manager for families concentrated in Marin, Sonoma, and Napa counties. Unlike standalone RIAs, the wealth division anchors its service model on trust administration — a model that generates persistent fee income from generational transfers and estate settlements. The division's investment posture skews toward capital preservation and income generation, consistent with a trustee-governed mandate. Asset-class coverage spans domestic equities, municipal and corporate fixed income, real estate exposure often tied to regional commercial properties, and private credit in the form of bank-originated loans. Known allocation strategies heavily weight individually managed bond ladders and dividend-oriented equity portfolios. The geographic footprint concentrates on Northern California, with the parent bank's 22-branch network providing a steady pipeline of depositors who migrate into wealth management relationships over time. Total bank assets reached approximately $3.7 billion by early 2025, with the wealth and trust division representing a meaningful but undisclosed fraction of total fee income. Bank of Marin operates additional offices in San Francisco, Sonoma County, and Napa County. In April 2024, the firm announced the sale of its Sausalito branch property as part of a broader cost-optimization initiative while maintaining full-service wealth operations across its core Bay Area corridor. Bank of Marin's structural differentiator is the regulatory and operational entanglement between its FDIC-insured bank and its fiduciary wealth division — an architecture that most RIA-based family offices cannot replicate. The bank charter permits the trust department to serve as court-appointed executor and trustee, creating a captive flow of estate-driven mandates that independent family offices must source through referrals. This positions the firm not as a pure asset-gatherer but as an institutional trustee that manages family wealth through life-cycle events, not market cycles.
General information
Firm type
Multi Family Office
Year founded
1989
AUM
$500M - $1B (Altss estimate based on trust and wealth management division disclosures)
Location
Region
North America
Country
United States
City
Novato
Corporate office
504 Redwood Blvd, Novato, CA 94947, United States
Additional offices
San Francisco, CA · Sonoma County, CA · Napa County, CA
Principals
Tim Myers
President and CEO
Tani Girton
Executive Vice President and CFO
Misako Stewart
Executive Vice President and Chief Credit Officer
Sector focus
Frequently asked questions
Who runs investment decisions at Bank of Marin's wealth division?
The wealth management and trust division operates under discretionary fiduciary authority granted by the bank's trust powers. Investment decisions are made by an internal trust investment committee, overseen by senior bank officers including President and CEO Tim Myers and the wealth division's trust officers. The committee sets asset allocation policy, approves individual manager selections, and reviews trust account performance quarterly.
How is Bank of Marin's wealth management business structured relative to the parent bank?
The wealth management and trust division is not a separate legal entity but a division of Bank of Marin, the wholly owned subsidiary of publicly traded Bank of Marin Bancorp (NASDAQ: BMRC). This means the wealth division shares the bank's balance sheet, regulatory oversight by the FDIC and California Department of Financial Protection and Innovation, and access to the bank's 22-branch network for client acquisition. The structure contrasts with most family offices, which operate as independent RIAs or single-family entities.
Does Bank of Marin participate in fund commitments or only direct investment management?
The trust and wealth division primarily constructs direct, individually managed portfolios of individual securities — equities, bonds, and occasionally bank-originated loan participations. There is no public record of the division operating a fund-of-funds program or committing to external private equity or venture capital vehicles. The investment approach is overwhelmingly direct, consistent with a trustee-governed fiduciary culture that prioritizes transparency and liquidity.
What investment stages does Bank of Marin's wealth division typically target?
Client portfolios are managed on a fully discretionary, ongoing basis — the division does not run time-limited funds or stage-based investment theses. Portfolios emphasize established public equities, investment-grade fixed income, and private credit exposure through the parent bank's lending operations. The division's trust clients are generally post-liquidity families, not early-stage wealth creators.
How does Bank of Marin source its wealth management clients?
Client sourcing is predominantly internal, through the bank's commercial and retail banking relationships across its branch network in Marin, Sonoma, Napa, and San Francisco counties. The trust department also receives referrals from law firms and accounting practices handling estate planning for Northern California families. There is no evidence of third-party RIA platforms or external lead-generation channels.
Where does the underlying wealth managed by the division typically originate?
The division does not publicly disclose specific wealth origins for its trust clients, consistent with fiduciary confidentiality norms. Given the bank's footprint, client wealth likely originates from regional commercial real estate, wine industry enterprises, professional services, and multi-generational Northern California families. The bank itself does not represent the division as managing a single founding fortune or a named tech liquidity event.
What is Bank of Marin's known posture on co-investments alongside external managers?
The trust and wealth division does not publicly market a co-investment platform or offer club-deal access alongside external general partners. The fiduciary trust culture and direct portfolio construction model suggest the division prioritizes control and liquidity over co-investment exposure, but the firm has not made an explicit public statement ruling out the practice.
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.
Need institutional-grade insight on family offices?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: