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O'brien Investment Management
O'Brien Investment Management was established in 2016 by Kevin O'Brien as a registered investment adviser in Torrance, California.
O'brien Investment Management
O'Brien Investment Management was established in 2016 by Kevin O'Brien as a registered investment adviser in Torrance, California. The practice was structured from the start to serve private wealth — individuals, high-net-worth families, trusts, and estates — rather than institutional pools. That client focus shapes its posture: a lean, direct-advisory model common among single-principal RIAs catering to concentrated wealth in the South Bay and greater Los Angeles area. Investment advisory services span portfolio management, wealth planning, and asset allocation. The firm constructs client portfolios across public equities, fixed income, and select private-market exposures, with a tilt toward real estate and private credit — asset classes well understood in the Southern California family-wealth ecosystem. Specific mandates remain undisclosed given the firm's private-client orientation, but the structure suggests a mix of separately managed accounts and manager-selection frameworks rather than proprietary fund products. Kevin O'Brien serves as the named principal, running investment decisions and client relationships from the Torrance office. No satellite offices or adjacent vehicles — such as a linked philanthropic foundation or real estate operating company — are publicly associated with the firm. The organizational structure is that of a tight fiduciary practice, keeping assets under management undisclosed as is common for private RIAs below SEC-reporting thresholds. In January 2024, the firm maintained its SEC registration as a state-registered adviser, consistent with its sub-$100M regulatory asset profile (per public record, 2024). The structural differentiator is jurisdictional: a California RIA serving concentrated South Bay wealth avoids the institutional asset-gathering treadmill, operating instead as a quiet fiduciary for families who value principal-level attention over platform scale.
General information
Firm type
Bank / Wealth / Trust
Year founded
2016
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Torrance
Corporate office
Torrance, CA, United States
Sector focus
Frequently asked questions
Who makes investment decisions at O'Brien Investment Management?
Kevin O'Brien, the founder, serves as the named principal and runs all investment and advisory decisions. The firm operates as a single-principal RIA, meaning portfolio construction and client strategy flow directly through him rather than through a committee or multi-layered team.
What asset classes does O'Brien Investment Management allocate to?
The firm constructs portfolios spanning public equities, fixed income, and select private-market exposures. Real estate and private credit appear to be areas of emphasis, consistent with the preferences of the Southern California high-net-worth client base the firm serves.
Is O'Brien Investment Management a single-family office or a multi-client RIA?
It is structured as a registered investment adviser serving multiple clients — individuals, high-net-worth families, trusts, and estates. While its clientele and service model borrow from family-office thinking, it is not a dedicated single-family office.
Does the firm disclose its assets under management?
No. O'Brien Investment Management does not publicly disclose AUM. Its SEC registration as a state-registered adviser indicates regulatory assets under management below $100 million, but the exact figure is not available (per public record, 2024).
Does O'Brien Investment Management run proprietary fund products or only separately managed accounts?
Based on its RIA structure and client base, the firm likely relies on separately managed accounts and manager-selection frameworks rather than proprietary pooled vehicles. No proprietary fund products are publicly registered or marketed.
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.
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