Isio

Institutional investment expertise for families, advisers, and family offices.

Advisor / Consultancy Advisory Portfolio Analytics Portfolio Management
Visit Website Last reviewed: April 2026

Overview

Isio sits at an unusual intersection: an actuarial and pensions advisory firm that has built a distinct wealth planning and investment advisory offering for individuals, families, and their offices. That origin in institutional pensions gives its investment team a different analytical frame than most private wealth advisers, applying the same rigour used to manage large defined benefit schemes to family portfolios and family office mandates.

For families and family offices evaluating Isio, the relevant offering covers:

  • Independent wealth planning and investment management for individuals and families
  • Bespoke investment advisory for family offices, drawing on institutional-grade research
  • Portfolio management for financial advisers, charities, and endowments
  • Access to institutional fee structures typically reserved for large institutional investors

Isio reports over £3bn in individual and family wealth under advice or management, and positions itself as independent, meaning it is not tied to proprietary products. The firm operates across the UK with multiple local offices and is known primarily as a pensions market leader, advising on over £300bn in UK pension assets. That scale gives the investment team access to manager research and pricing that a standalone wealth boutique would struggle to match.

The trade-off worth noting: Isio is not a dedicated family office firm. Wealth and family office advisory is one business line within a broader pensions and employee benefits operation. Family office principals seeking a firm whose entire identity and infrastructure is built around their needs may find the firm’s centre of gravity elsewhere. Pricing is not publicly disclosed. UK presence is clear; international family office mandates are not referenced on the site.

"Independent wealth planning and investment management for individuals and their families alongside portfolio management for financial advisers, charities and endowments."
Isio

Product & Capabilities

Main Tasks
Independent wealth planning for individuals and families Investment advisory for family offices Portfolio management for financial advisers, charities, and endowments Institutional investment research and manager selection Pension and benefit planning for business owners and individuals
Top Features
Bespoke investment advisory for family offices Independent wealth planning Institutional-fee-structured investment access for private clients Portfolio management for charities and endowments Actuarial and investment expertise applied to private wealth Multi-disciplinary advisory across pensions, benefits, and wealth
Technology
Services-only

Company

Total AUM / Assets£3bn+ (individual and family wealth under advice or management); £300bn+ (UK pension assets under advice)
Top Markets
United Kingdom

Clients & Focus

Firm Type Advisor / Consultancy
AUM / Assets Tracked£3bn+ (individual and family wealth under advice or management); £300bn+ (UK pension assets under advice)