# Private Portfolios

Private Portfolios is a Bank / Wealth / Trust based in San Mateo, United States.

## Overview

- **Organization type:** Bank / Wealth / Trust
- **Headquarters:** San Mateo, United States
- **Region:** North America
- **Address:** 424 North San Mateo Drive, Suite 200, San Mateo, CA 94401, United States
- **Founded:** 1984
- **Assets under management:** Undisclosed
- **Website:** privateportfolios.com
- **LinkedIn:** https://www.linkedin.com/company/private-portfolios-inc

## Regulatory record

- **CRD number:** 111905
- **SEC file number:** 801-110209
- **Registration status:** Registered
- **Reports private funds:** No
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/111905

## About

Private Portfolios was founded in 1984 as a California-based registered investment advisor. Managing Partners Bob Binn and Dan Binn lead the practice, joined by Financial Advisor Mark Flowers, a CERTIFIED FINANCIAL PLANNER™. The firm holds itself out as an independent fiduciary, serving individuals, high-net-worth families, and various entities from a single office in downtown San Mateo. The firm provides financial planning, investment management, and broader wealth-management services. Asset allocation and security selection are handled internally, with strategies customized to each client's goals and risk tolerance. Geography remains tightly focused on the Bay Area, where the team meets clients face-to-face and manages long-term advisory relationships. No fund commitments, co-investments, or direct-deal activity is publicly disclosed. The practice is deliberately compact: three named professionals work from the San Mateo headquarters at 424 North San Mateo Drive. No branch offices or adjacent vehicles — such as philanthropic foundations, real-estate arms, or operating companies — appear in public filings or on the firm's website. Recent operational activity is not publicly documented, reflecting a firm that has maintained the same core team and service model without structural changes. What distinguishes Private Portfolios is its strict, decades-long focus on personal planning for a concentrated local client base. The Binn family partnership structure — two managing partners with shared ownership — keeps decision-making close and succession informal, a model that prioritizes relationship continuity over asset-gathering scale.

## People

- Bob Binn — Managing Partner
- Dan Binn — Managing Partner
- Mark Flowers — Financial Advisor

## Questions

### Who makes investment decisions at Private Portfolios?

Managing Partners Bob Binn and Dan Binn, together with Financial Advisor Mark Flowers, collaborate on client portfolios. The firm does not employ a separate chief investment officer or investment committee, so decisions are made within this compact team structure.

### How does Private Portfolios source and manage client assets?

The firm operates entirely from its San Mateo office, relying on personal relationships and local referrals. Assets are managed on a discretionary basis through individually tailored portfolios, with no public record of pooled funds, fund-of-funds commitments, or external manager allocations.

### Does Private Portfolios invest directly in private companies or real estate?

There is no public evidence of direct private-company or direct real-estate investing. The firm's disclosed focus is financial planning and public-market portfolio management for its wealth-management clients.

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Last updated: 2026-06-03T20:00:00.000Z

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