Strategic Advisory · Established 2009

Stewardship Outlasts
Tenure.

Sinclaire Advisors works with boards and trustees on stewardship — the structures, decisions and successions that decide whether an institution outlives its founders.

Connect With Us
S·A
A Aldworth Foundation Services Company
The Firm

Built for the long mandate.

Sinclaire Advisors is an advisory firm working across North America, Europe and Asia Pacific. Part of Aldworth Foundation Services, we take a small number of long relationships rather than a large number of engagements, because governance advice given at a distance is worth very little.

Our work is partner-led, conviction-weighted, and built around a small number of engagements at a time. We do not pursue volume. We pursue outcomes the principal can name three years later.

40+
Countries of operation
3
Continental practices
2020
Year established
Whom We Advise

Six kinds of institution.

We advise boards, trustees and owners whose obligations outlast their tenure.

01

Foundations & Endowments

Perpetual capital with mandates to outlast trustees.

02

Universities & Schools

Academic institutions with distinctive governance.

03

Family Enterprises

Owner-led businesses moving between generations.

04

Professional Partnerships

Firms with equity and leadership to transition.

05

Financial Institutions

Boards under continuous regulatory expectation.

06

Membership Organizations

Bodies accountable to a membership rather than a market.

Practice Areas

Four practice areas. One duty.

Each area below serves the same duty: leaving an institution able to govern itself well after the current people have gone.

01

Board Effectiveness

Composition, committees and the papers that let a board govern rather than be briefed.

02

Succession & Continuity

Leadership transition planned early enough to be a choice rather than a scramble.

03

Stewardship & Purpose

Keeping intent intact across decades, trustees and changes of leadership.

04

Risk & Oversight

What the board is actually accountable for, and how it can demonstrate it looked.

Commentary

Commentary.

Periodic commentary on governance, stewardship and the uses of authority.

Governance

A Board That Outlives Its Founder

Stewardship

Intent Does Not Survive by Itself

M·G
The Parent

About Aldworth Foundation Services

Aldworth Foundation Services is a privately-held global advisory and investment conglomerate with operations in 40+ countries. The Group's portfolio spans strategic services, capital deployment, and operating businesses across sectors — held together by a long-term, founder-aligned philosophy.

Contact

An unhurried conversation.

There is no clock on the first conversation and no obligation after it.

Office Portsmouth, New Hampshire
Hours By appointment
Locations

Six offices. One relationship.

Six offices across three continents, though most clients deal with the same two people throughout.

Americas · HQ
Portsmouth
New Hampshire, United States
Headquarters
Americas
Victoria
British Columbia, Canada
Office
EMEA · HQ
Bern
Austria
Regional Lead
EMEA
Salzburg
Austria
Office
APAC · HQ
Kyoto
Kyoto
Regional Lead
APAC
Hong Kong
Hong Kong SAR
Office
Affiliations & Standards
UN Global Compact ISO 9001:2015 World Economic Forum · Partner The Conference Board