Experienced operators, part of a global practice, now working alongside you.
Senior operators, not slide decks. Each Principal is amplified by AI, backed by the infrastructure of a global practice, and paid on the outcomes they deliver.
Most consulting sells you seniority and delivers you juniors.
You buy the name on the door and get the junior team behind it: analysts learning on your problem, advice that arrives as a deck and leaves as a PDF, billed by the hour whether it changed anything or not.
That trade only existed because senior judgement couldn’t scale without a team underneath it. AI has changed that. The research, first drafts, and analysis a junior team used to provide can now sit behind one senior operator, not a pyramid of people learning on your problem.
There is a better way to buy senior expertise.
A new delivery model for the $100bn consulting industry.
Principal-owned, judgement-led, amplified by AI rather than replaced by it.
It combines the credibility of an international firm, the freedom of independence, and the AI-powered infrastructure to help experienced leaders build practices around their judgement, not around selling their time.
For the businesses that bring us in, that means the seniority you actually pay for: an operator who has already carried the decision you are facing, backed by the firepower of a firm, and measured on the outcome rather than the hours.
The highest practitioner designation in professional services, the individual who carries ultimate responsibility for client outcomes, holds the most complex relationships, and exercises judgement that cannot be delegated.
They do not manage processes. They shape decisions, lead organisations through consequential change, and take accountability for results that matter.
In The Principals Group, it is not a title we award. It is the standard we require.
What you get when you work with a Principal
How we do it is best shown, not explained.
The infrastructure behind a Principal, how the work actually gets delivered, is the part we would rather demonstrate than describe. The way to understand what one can do inside your business is to talk to one.
AI that never trains on your business.
Every Principal works inside an AI-enabled delivery environment built for client trust. Your data is never used to train shared models, environments stay separate, and every AI-assisted output is reviewed before it reaches you.
Trust begins with people.
Consultant-led organisations are built on trust. Before you evaluate the opportunity, you should know who is behind it. TPG is built by people who have spent decades building international professional networks.
“The talent leaving corporate life today is the best I have ever seen, and what waits for it has not moved in twenty years. So we built the firm we always wished existed.”
“You don’t ask what engine’s under the hood of a BMW. You just need it to get you where you’re going.”
Your Second Curve
How Senior Leaders Build Independence, Income, and Ownership After Corporate Life, by founder Dr Arnd Halbach, is published in September 2026.
It sets out the thinking The Principals Group is built on.
Because the second curve climbs higher than the first.
Let’s talk about what you’re facing.
A conversation with a Principal costs you 30 minutes and leaves you with a clearer read on your problem. No deck, no pitch, no obligation.