They are two of the most important roles in any private or family office. They often work in close proximity to one another – and to the principal. And they are, with surprising frequency, confused for the same job.

The Executive Assistant and the Chief of Staff are not interchangeable. Understanding the distinction — and knowing which one you need, when, and at what level – is one of the more consequential decisions a family office will make.

The Executive Assistant – Precision at the Centre

An exceptional Executive Assistant is one of the most valuable people in any principal’s world. They are the operational nerve centre – managing diaries, communications, travel, and the relentless flow of information and requests that surrounds a high-functioning individual.

But the EA role at the highest level goes well beyond scheduling. A principal-level EA in a family office context is a gatekeeper, a prioritisation engine, and often the first point of contact for advisors, counterparties, and senior staff. They hold the principal’s time – arguably their most precious resource –  and protect it with judgement as much as organisation.

The best EAs at this level anticipate. They do not wait to be told what is needed. They understand the principal’s priorities, communication preferences, and working rhythms well enough to act ahead of instruction – managing complexity invisibly, so that what reaches the principal is already filtered, contextualised, and actionable.

What the EA role is not, at its core, is strategic. That is not a limitation – it is a definition. The EA’s domain is execution, precision, and the operational excellence that makes everything else run.

The Chief of Staff – Strategy Meets Accountability

The Chief of Staff operates at a different level of scope. Where the EA manages the principal’s day, the Chief of Staff manages the principal’s agenda – in the broader sense of that word. They are responsible for translating vision into action across the office, holding senior staff accountable, and ensuring that the organisation moves coherently in the direction the principal intends.

In a family office context, this often means sitting across the full operational picture: investments, legal, compliance, household, staff, and the overlapping complexity that comes with managing a principal’s entire private and professional infrastructure. The Chief of Staff sees all of it. They identify where things are misaligned, where priorities are unclear, and where the principal’s attention is needed – and where it is not.

They are also, frequently, the internal voice of candour. A principal surrounded by people who are reluctant to challenge them needs someone who will. A well-placed Chief of Staff provides that function – with loyalty and discretion, but without the deference that can sometimes make the people closest to a principal less than fully useful.

Where the Roles Overlap – and Where They Do Not

In smaller family offices, the same person sometimes performs both functions, or the boundaries between them blur. This can work – with the right person. But it is worth being clear about the trade-off. A hybrid EA-Chief of Staff role tends to pull the individual toward the operational end, because the demands of managing the principal’s day are immediate and relentless. The strategic function tends to suffer.

In a well-structured family office of any real complexity, these should be two distinct appointments. The EA and Chief of Staff work together – the EA managing the how of the principal’s time, the Chief of Staff managing the what and the why. When both roles are filled well, the principal’s bandwidth expands considerably.

Hiring for Each Role

The EA search should prioritise precision, emotional intelligence, and the particular kind of calm that holds under pressure. Experience in a private office or with a high-profile individual principal is valuable — not because corporate EA experience is without merit, but because the pace, the personal nature, and the discretion requirements of private office work are genuinely different, and candidates who have navigated that environment before are a lower-risk appointment.

The Chief of Staff search requires a different profile. This is a leadership hire – someone who can operate with authority across a complex organisation, who has the commercial and structural literacy to understand everything from investment decisions to staff management, and who can earn the trust of the principal and the senior team simultaneously. The personality fit here is critical. A Chief of Staff who cannot build relationships across the office will be ineffective regardless of their capability.

Both roles require discretion at the highest level. Both carry significant responsibility. And both, when appointed well, have an outsized positive impact on how the principal’s world functions.

If you are working through this decision for your own office – whether you need one, the other, or both – we are happy to talk it through. It is exactly the kind of conversation The Private Standard is built for.