Think of a 30-something-year-old computer scientist from Silicon Valley. Their small start-up gets acquired by a much bigger firm for a tune of millions of dollars. Now, they have more money than they could ever manage on their own. However, chances are, they have yet to settle down, raise a family and figure out the legacy they want to leave behind.
In this guide, we explain what a multi-family office is, explore emerging trends, and list the top 5 multi-family offices worldwide. Finally, we provide some food for thought when assessing the attractiveness of a multi-family office.
The progression from family business to family office
Before diving into the nitty-gritty of multi-family offices, it's necessary to revisit the place where it all starts. Family offices, whatever type they are, usually evolve from a family business or enterprise. Think of the biggest family office in the world, the Walton Enterprises, which began with the first revolutionary retail store in Arkansas.
Over time, just like Walmart, the family and the business tend to grow together. Family structures become more complex and multi-layered, and new generations come into the mix.
Established business structures and resources are then leveraged to support the administration and management of diverse family interests outside of the business. Inevitably, an embedded family office is formed in the process, and the resource balancing act between business and family becomes an increasingly tricky challenge.
While it may be extremely cost-effective to leverage the current skills and expertise residing within the core business operation, the complexity of managing significant wealth and the personal demands of a growing family can become a liability to the business.
This is usually when family owners start to look for alternative options to manage the ever-increasing demands of the family itself. The formation of a family office is the logical next step.
What is a multi-family office?
A multi-family office is best defined as what it is not. In other words, it originates as an alternative to a traditional single-family office. A single-family office is a private entity created to exclusively serve the needs of one family.
The financial capital managed by a single-family office is the family's own wealth. The single-family office is normally responsible for financial management services, including investments, fiduciary trusts and estate management.
More often than not, it offers a range of additional services which may include legal and tax support, property and household management, travel and lifestyle management. Whilst this set-up provides a high level of privacy, confidentiality, as well as customised and personalised services, it is the most costly family office option.
This is where an alternative comes in. A multi-family office is a great alternative option for wealthy families with less complex requirements and who are looking for a more cost-effective means. Thus, a multi-family office is a firm that primarily provides 'wealth management services' to a group of affluent families.
The differences between a single and a multi-family office?
The fundamental difference between a single-family office and a multi-family office lies in the number of families they serve and the resulting cost structures. A single-family office exclusively serves one ultra-wealthy family. Usually, on top of managing investments, they will also dabble in lifestyle and household management, and eventually handle the succession planning. With all these added services, a typical single-family office's operating costs can easily surge to $6 million in today's estimates.
In contrast, a multi-family office is a commercial firm that provides wealth management services to a group of unrelated families. In fact, many of them originate when single-family offices expand their client base to share operating expenses and increase buying power.
This shared structure provides superior economies of scale, making multi-family offices significantly cheaper and more cost-effective to run than their single-family counterparts. For families where cost efficiency is a key deciding factor, the multi-family office route offers a viable alternative to avoid the high administrative overheads.
Emerging trends impacting the multi-family office space
Today, it is expected that the multi-family office concept will become even more popular over time. We are already seeing signs of a wealth shift into this space, driven mainly by the emergence of new wealth and the increased levels of specialisation.
New wealth: Private wealth has boomed over the last decade, driven mainly by the fortunes made in the tech industry. And successful tech entrepreneurs are turning to family offices to manage and invest their newfound wealth. The most famous example is Iconiq Capital, founded by Mark Zuckerberg of Facebook and his friends.
Specialisation: To cater for the unique needs of the modern wealth owner, multi-family offices are becoming increasingly niche in their focus, offering custom services and specialised knowledge in very specific areas. Once again, Zuckerberg's Iconiq Capital focuses on tech start-ups via venture capital and direct investment deals in the tech space.
The rise of the multi-family office
While single-family offices remain the most popular vehicle for UHNW families, multi-family offices are gaining significant ground.
Top 5 multi-family offices in the world
The table below lists the five largest independently owned multi-family offices by assets under management as of 2026, with their headquarters and the focus each is known for.
| Multi-Family Office | Estimated AUM | Headquarters | Primary Focus & Background |
|---|---|---|---|
| Corient | ~$430 Billion | London, UK & Miami, USA | Created via a massive merger between Stanhope Capital, Stonehage Fleming, and Corient. It stands as the largest independent global wealth manager, specialising in research-driven alternative investments and multi-generational family governance. |
| Bessemer Trust | ~$200 Billion | New York City, USA | Founded in 1907 by the Phipps family (original co-owners of Carnegie Steel). It is one of the most prestigious multi-family offices in North America. It currently serves over 2,500 ultra-high-net-worth families. |
| Cerity Partners | ~$122 Billion | New York City, USA | A highly prominent commercial MFO that operates under a pure fiduciary model. It offers extensive tax planning, executive compensation advice, and corporate advisory services alongside wealth management. |
| Pathstone | ~$100 Billion | Englewood, New Jersey, USA | A rapidly growing, technology-forward MFO that specialises heavily in multigenerational wealth preservation, family office structuring, and sustainable/impact investing. |
| Iconiq Capital | ~$95 Billion | San Francisco, USA | Famously known as the "Silicon Valley billionaires' club." Iconiq serves a highly exclusive client base primarily consisting of top tech founders, entrepreneurs, and high-profile executives, with a strong emphasis on venture capital and direct tech investments. |
Choosing between a single vs multi-family office
Traditionally, the choice of family office format has been determined by assets under management versus the cost involved in running a family office. Therefore, the implication is that an SFO is the superior option – but only feasible if you can afford it. This may be true in many cases, but there are many variables to consider when stacking up the pros and cons of an MFO. Also, certain trends reshaping the global wealth and business landscape are expected to influence the popularity of MFOs going forward.
Below are some key considerations that could assist in making a more objective and informed decision:
Continuity and talent management
MFOs generally take a long-term view when it comes to the management of their internal teams. This may be a byproduct of managing multiple clients or having a more established structure. Either way, the point is that they are more likely to have the systems and protocols in place to ensure continuity when there are personnel or business disruptions. On the other hand, single-family offices often experience significant impacts when key personnel become unavailable or redundant.
Internal controls and governance
Diligence and governance processes are essential to safeguard family wealth and ensure sound decision-making, transparency and continuity. Multi-family offices often enjoy a distinct advantage here as they are more likely to have strong internal controls in place to avoid misappropriation of funds. On the other hand, the familiarity between the staff of a single-family office and the general close connection between these members and the family itself can often raise the risk of compromising certain controls and governance processes.
Confidentiality and data security
One of the biggest reasons families opt for a single-family office is the priority placed on privacy. While it is logical to assume that, it turns out that single-family offices are more prone to security breaches because small teams lack sufficient oversight. Multi-family offices, on the other hand, generally boast superior systems and infrastructure that help to safeguard sensitive information. When it comes to confidentiality, both a single and multi-family office should sign the appropriate agreements to protect family information.
Objectivity
While a multi-family office may lack the same level of independence, a single-family office often struggles with a lack of objectivity. In other words, family members or associates who may not possess the necessary qualifications can have an undue influence on investment decisions, which can lead to conflicts and poor performance. Conversely, multi-family offices are not always perfectly objective either, as a dominant family can sometimes exert excessive control over decisions intended to serve the entire group.
Increased buying power and experience
Multi-family offices tend to dominate in this arena. By combining the wealth and experience of multiple families, today's multi-family offices enjoy greater negotiation power. In addition, they have a greater capacity to secure investment deals that would not otherwise be possible without pooled resources. This diversity of experience and exposure to broader internal and external business ecosystems enables them to keep up with current trends and best practices and encourages innovation.
Cost
Without a doubt, a multi-family office offers superior economies of scale, making it a far more cost-effective model. A dedicated single-family office is notoriously costly to maintain. It demands substantial initial capital and carries high administrative overheads for specialised staff and infrastructure. Multi-family offices, on the other hand, alleviate this financial burden by sharing these significant operational expenses across a group of families. This collective structure drastically reduces the total cost for each client, transforming an expensive necessity into an accessible, cost-efficient solution.
Autonomy and control
Hands down, multi-family offices cannot compete with the autonomy, control and freedoms that single-family offices provide. Not being constrained by regulatory controls, having the freedom to dictate who is hired and determine how the family office operates and invests are some of the reasons very affluent families choose to go the single-family office route. However, with autonomy comes responsibility and families must be prepared to take a more hands-on approach to oversee their core business operations.
Alignment of purpose
Finally, the main reason to start a family office in the first place is to leave a legacy for the following generation. Passing on legacy involves more than preserving capital or generating a profit. It's about preserving intangibles such as identity and values. If purpose is a core priority, then a single-family office is the best vehicle to use, as multi-family offices cannot be expected to adhere to an individual family's vision and values.
To sum it all up
The way ultra-high-net-worth families manage their wealth is hitting a turning point. Single-family offices have been the gold standard for many years. They were prized for their privacy, independence, and personal touch. However, slowly but surely, the landscape is now changing.
The unprecedented emergence of new wealth, coupled with increasing global complexity and the need for deep specialisation, has propelled the multi-family office into a position of genuine competitiveness. Multi-family offices successfully counter the single-family offices' high overhead by offering superior economies of scale. In addition, they also boast institutional-grade governance and resilience.
For the modern wealth owner, the multi-family office stands as a dynamic, evolved solution for securing a multi-generational legacy in a rapidly changing world.
Frequently asked questions
What is a multi-family office?
A multi-family office is a professional firm that manages the wealth and affairs of several affluent families. Many began as single-family offices that expanded to serve others. They aim to reduce operational costs and pool access to investment opportunities. In addition, they offer institutional-grade services including estate planning, reporting, and governance.
What is the difference between a family owned multi-family office and commercial multi-family office?
A family-owned multi-family office is typically founded and still controlled by one or more families it serves. It often prioritises aligned values and long-term relationships. A commercial multi-family office, on the other hand, is operated by a third-party investment firm or wealth manager. It may have a broader client base, potentially with less customisation but deeper resources.
What are the types of family offices?
Single Family Office (SFO) – Dedicated to managing the affairs of one ultra-wealthy family. Multi-Family Office (MFO) – Serves several unrelated families under one structure, sharing infrastructure and services. Virtual Family Office (VFO) – A lightweight, tech-enabled model where families outsource key functions and operate without a dedicated physical office.
What services do multi-family offices typically offer?
Most multi-family offices provide investment management, tax planning, estate and trust structuring, family governance support, reporting and consolidation, and philanthropic advisory. Some also include concierge and lifestyle services, depending on client needs.
How do multi-family offices charge fees?
Multi-family office may charge a percentage of assets under management, a fixed annual retainer, or à la carte fees for specific services. It's important to understand the pricing model and whether it includes or excludes third-party provider costs.
What are the benefits of joining a multi-family office instead of setting up a single family office?
Joining a multi-family office allows families to share operational costs, access institutional-quality resources, and avoid the burden of hiring and managing a full in-house team. It's often more efficient for families with under $250 million in assets or those new to formal wealth structures.