List of the 125+ Largest Single Family Offices in California [2026]
North America · updated quarterly
List of the 125+ Largest Single Family Offices in California [2026]
Every qualifying office in California, verified and ranked by size: named decision-makers with direct emails, phone numbers, AUM bands and investment focus.
Contact-level fields (direct email, phone, LinkedIn) are included in the full dataset.
Featured offices
A few of the offices in the directory
Nolan Capital
Hermosa Beach · SFO · >5B
Nolan Capital is a single family office based in Hermosa Beach, California, founded in 2014. The firm manages direct investments on behalf of the Nolan family, focusing on private equity and real estate across sectors including consumer, industrials, healthcare, business services, technology, and hospitality and leisure. The family's wealth originates from the finance industry.
Madrone Capital Partners is a single family office based in Menlo Park, California, founded in 2005. The firm invests across private equity, venture capital, and crypto, with a focus on the technology, consumer, and energy sectors. The office manages wealth stemming from the Walton family's Walmart retail fortune.
AME Cloud Ventures is a single family office based in Palo Alto, California, founded in 2012. The firm manages the wealth of Yahoo! co-founder Jerry Yang and invests primarily in venture capital and private equity within the technology and healthcare sectors, focusing on data-driven companies.
Emerson Collective is a single family office based in Palo Alto, California, founded in 2004. It invests in venture capital, private equity, and public equities, with a focus on sectors such as education, transportation, materials, and healthcare. The family's wealth originates from technology, stemming from the legacy of Apple co-founder Steve Jobs.
S-Cubed Capital is a single family office based in Menlo Park, California, founded in 2012. It invests globally across private equity, venture capital, real estate, hedge funds, and public equities, with sector interests including technology, financial services, media, agriculture, and consumer.
Shamrock Holdings is a single family office based in Burbank, United States, founded in 1978. It manages investments for the Roy E. Disney family, focusing on real estate, real assets, fund of funds, and private equity, with sector interests including media, telecommunications, and technology.
This list contains all 129 single family offices in California from our verified dataset, ranked from largest to smallest and carrying 571 named decision-maker contacts. Coverage is led by San Francisco (19% of the list), followed by Los Angeles and San Diego.
Sector exposure is broadest in Technology, Healthcare and Real Estate. The largest offices by assets include Nolan Capital, Madrone Capital Partners and AME Cloud Ventures.
96% of the offices on this list carry a direct channel: a firm email, phone or contact form, or a named decision-maker's email or LinkedIn. Field-level coverage is shown transparently on this page, and the dataset refreshes quarterly. A purchase includes 12 months of updates.
Who buys this
Built for the teams reaching family-office capital
Fund GPs
Raising a fund
Identify the offices that allocate to your asset class and stage, without burning weeks of associate time on LinkedIn.
Decision-makers with titles, filtered by AUM band and office type
Wealth managers
Mapping the competitor set
See which offices are single- vs multi-family, their AUM band and their sector focus. Stop guessing who does what.
Every office profiled by location, AUM band and structure
Service providers
Selling to family offices
Reach named people at the office, with titles and LinkedIn where available, instead of a generic firm inbox.
Named decision-makers with titles and LinkedIn where verified
Coverage
Where the 129 offices sit: by hub and sector
By location
San Francisco
25 offices
19%
Los Angeles
25 offices
19%
San Diego
11 offices
9%
Newport Beach
10 offices
8%
Palo Alto
6 offices
5%
Menlo Park
5 offices
4%
Sector exposure
Technology53%
Healthcare31%
Real Estate31%
Consumer26%
Media Telecom25%
Financial Services20%
Industrials16%
Energy16%
Share of the 113 offices carrying classified sector data. Many allocate across several sectors.
Data completeness
Exactly what's filled in, field by field
Coverage varies by office. This is the real fill rate for every field in the dataset, measured across all 129 offices, so you know what you're getting before you buy.
No dead ends — all 129 offices are reachable via a website or a direct channel. 96% (124) have a direct channel — a firm email, phone or contact form, or a named decision-maker's direct email or LinkedIn.
Per office · 129 offices
Identity & location
Company name100% · 129/129
Office type100% · 129/129
HQ city100% · 129/129
Description100% · 129/129
Firm profile
AUM band100% · 129/129
Sector focus88% · 113/129
Asset-class focus81% · 104/129
Year founded71% · 91/129
Geographic focus33% · 42/129
Contact & reachability
Website100% · 129/129
Company LinkedIn67% · 87/129
Firm email50% · 64/129
Phone36% · 46/129
Contact form33% · 43/129
Per named contact · 571 people
Person
Name100% · 571/571
Decision-maker flag94% · 537/571
Job title87% · 495/571
Reach
LinkedIn20% · 115/571
Direct email10% · 56/571
Emails and LinkedIn are provided where verified, not fabricated to hit a number.
How we built it
Compiled from public sources, reviewed before release
Each office is assembled from company sites, filings and public records, then reviewed and classified. The same dataset powers our research platform, where records update continuously. Field coverage is shown transparently above. Nothing is fabricated to fill a column.
Sources
Company sites, registries and public web sources, consolidated per office.
Inclusion
Entities operating as a single- or multi-family office in North America.
Classification
Office type, AUM band and sector focus assigned where the evidence supports it.
Refresh
Reviewed and refreshed quarterly; each release supersedes the last.
License
One purchase. Twelve months of refreshes.
Every number on this page is measured from the file you download.
Complete database access
List of the 125+ Largest Single Family Offices in California [2026] · Single seat
Ranked by disclosed AUM band, then by named-contact depth: the same ranking the per-country pages use. Offices without a disclosed AUM band rank below those with one. The file is sorted by that ranking and contains all 129 qualifying single family offices in California in our dataset, not a sample. The 125+ in the title is the minimum we guarantee across refreshes.
An Excel workbook (Overview, Offices and Contacts sheets) plus a flat CSV, delivered as an instant download after checkout and ready to import into your CRM.
Every record reflects the latest quarterly review; the exact data vintage is shown at the top of this page. For 12 months after purchase, each new release is included at no extra cost. List membership can shift between releases as office data changes.
Family offices rarely advertise themselves. Assembling 129 verified single family offices in California with 571 named decision-maker contacts from public sources takes a research team weeks. This file is that research already done, sold as a one-time purchase rather than an annual platform contract.
Yes. 77 of the 129 offices (60%) include at least one usable email address: a firm or department inbox, a named decision-maker's direct email in the Contacts sheet, or both. Filter to those rows and you have a targeted email list. The difference from a plain email list is the research around it: every row carries the profile columns to qualify a firm before you write to it.
One purchase covers internal business use within your organization: import it into your CRM and use it for outreach, research and analysis. Reselling, republishing or passing the data outside your organization is not allowed; the full license terms are on our Terms of Service page.
Yes. Checkout issues a tax invoice together with your receipt, and you can add your company name and VAT or tax ID during checkout so the invoice is made out to your business.
Data downloads are final sale once delivered, which is standard for digital B2B data. To judge quality before buying, review the sample rows and the field-by-field completeness table on this page, or request the free sample from the site. Broken or incomplete downloads are fixed promptly, and if a delivery differs from what the page advertises we review it individually.
Search, filter and track every office — the same data this file is exported from, updated continuously. Need ongoing access instead of a one-time download?