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Family offices used to signal one thing: billionaire-level wealth. That line has moved. A UBS report tracking 2025’s wealth surge found a quarter of millionaires now split their affairs across four to six advisors, more than double the number from 2019, as portfolios that once sat with a single wealth manager grow complicated enough to need a coordinated team. That same complexity is pushing more families toward formal family office structures well below the traditional billionaire threshold, and it is worth understanding when that shift also means outgrowing a standard trust.
Offshore Broker forms Cook Islands and Nevis foundations for families whose governance needs have outgrown a single trust relationship. Our team includes Connor Steens and John Evans, both with direct trustee and private banking experience in the Cook Islands.
Family Offices Are No Longer Just for Billionaires
The shift shows up clearly in how wealthy families now organize their advisors. Families in the $5,000,000 to $100,000,000 range are increasingly moving toward registered investment advisors and coordinated planning teams rather than a single private bank relationship, a structural change that mirrors what larger family offices have done for decades: bring investment management, tax planning, estate planning, and asset protection under one coordinated strategy instead of treating each as a separate, disconnected decision.
Why More Advisors Means More Structure, Not Less
A family working with four or six specialists needs a governance framework that all of them can operate inside, rather than five different professionals pulling a client’s plan in five different directions. A standard trust, built around a single settlor, a single trustee relationship, and a defined set of beneficiaries, works well for a straightforward asset protection goal but starts to feel narrow once a family is coordinating investment management, multi-generational succession, and possibly an operating business or philanthropic vehicle at the same time.
Where a Foundation Fits a Growing Family Office
A foundation’s council-based governance structure is built for exactly this kind of coordination. Rather than a single trustee holding legal title under a trust deed, a foundation is its own legal entity administered by a council that can include family members, independent professionals, and specialists from different disciplines, operating under the foundation’s charter rather than a trustee’s fiduciary discretion alone. For a family that has already added investment advisors, a tax specialist, and estate counsel, a foundation’s structure often maps more naturally onto that team than a single-trustee trust does. Our comparison of offshore foundations vs offshore trusts covers the structural differences in full.
We help families evaluate whether a foundation fits their growing structure. Free, confidential consultation.
The Wealth Behind the Trend
The numbers behind this shift are larger than the family office label might suggest. UBS tracks what it calls “everyday millionaires,” those holding between $1,000,000 and $5,000,000, as a group whose combined assets have grown 170% net of inflation since 2000, while wealthier households above that range saw their collective fortune grow 343% over the same period. Both groups are adding advisors and formal structure faster than in previous decades, but the pattern looks different by tier: families at the lower end of that range are turning to automated investment platforms and single RIA relationships, while those in the middle segment, roughly $5,000,000 to $100,000,000, are the ones most actively building the multi-advisor teams that eventually start to resemble a family office. That middle segment is precisely where the question of foundation versus trust governance tends to arise, since it is large enough to justify coordinated planning but not yet at a scale where a dedicated single-family office with in-house staff makes sense.
Foundation, Trust, or Both
Few families need to choose one structure and discard the other. A common pattern pairs a Cook Islands Trust holding liquid investment assets, where the litigation-tested trustee mechanism is the strongest available protection, with a Cook Islands Foundation or Nevis Foundation serving as the coordinating entity for family governance, operating business interests, or multi-generational succession planning. The trust handles the specific job of creditor protection. The foundation handles the broader job of keeping a growing team of advisors and family members working from the same governance framework. A trust fund structure can sit underneath either, depending on how the family wants banking and investment management organized.
Starting Before You Think You Need It
Families tend to notice they have outgrown their existing structure only after the complexity has already arrived, multiple advisors, a business interest added to the mix, a second generation beginning to take on responsibility, at which point building new governance takes longer and costs more than it would have earlier. The families that transition most smoothly are the ones who add foundation-level governance while the trust and advisor relationships are still relatively simple, rather than waiting until coordination problems are already visible. Our overview of offshore foundations covers formation requirements and costs for families considering this step.
