Specialist corporate and commercial advisory, in one team
We have lived every side of the table
Selling, buying, raising or changing ownership? We start with the result you need, then bring the financial, legal and strategic work together to deliver it. The same senior team stays with you from the first decision through completion and the next stage.
Led by Matt Parry-Hann and Jamie Ritchie, who have been the owner, the investor, the adviser, the general counsel and the operator: lawyers at Jones Day, Addleshaw Goddard and Ashurst, a former Head of London at Wilsons, a former partner at IBIS Capital, and a chief executive who ran a business through its sale.Recent work
What are you trying to do?
Start with where you want the business to get to.
Sell
I want to sell.Positioning, buyer identification, process management, negotiation and completion.
Buy
I want to buy.Origination, target assessment, diligence coordination, structuring and funding.
Raise
I need to raise.The pitch materials, the list of investors to approach, and negotiating terms that hold up in the next round.
Ownership
I want to change who owns it.Share buy-backs and management buy-outs. Agreements made years before an exit decide what it is worth.
Next stage
I need to get ready for what's next.What has to change structurally for the next stage, and in what order: governance, contracts, cap table and numbers.
Investing, acquiring or running a portfolio? Private equityFamily offices and private investors
Four examples of what one senior team can do.
Explore our workOne plan, carried through by one team.
Valuation, financing, terms, documents and delivery are worked out together, by the same senior people who see them through.
The same senior team, from the first decision through completion and the next stage.
Before
Through
After
Origination
Preparation
Process
Negotiation
Completion
Integration
ONfinancial, legal and strategic, one team, from Origination onwards.
We start with the result you need.
Where most engagements end.
The growth that follows. We stay.
You work with people who have done it.
Matt and Jamie have been the adviser, the founder, the general counsel, the chief executive, the investor and the board. The senior people who take your work on do it, with the specialists it needs around them.

Matt Parry-Hann
Partner · Legal and corporate finance · London
- Chief executive of The Epicurean Club through its sale; shareholder in its parent, Cirrus Inns
- Over 40 transactions led
- Nearly nine years' legal expertise at Jones Day and Addleshaw Goddard

Jamie Ritchie
Partner · Legal and corporate finance · London
- Legal expertise from Ashurst (Associate, London & Paris) and Wilsons (Partner, Head of London)
- Banking and Investment experience at Bank of America and IBIS Capital
- Built and exited businesses
Pay for our time, or pay for the result.
Hourly
Advice when you need it, at our standard rates. Partner rates are less than half those of a City firm.
Retainer
Time secured in advance, at a discount. Additional hours stay at the retainer rate until the work becomes its own project.
Success fee
A fee tied to the outcome, where aligning our interests with yours benefits everyone.
Practices
How we work with you
M&A advisory, corporate finance, shareholder and succession, strategic and operational, corporate and commercial legal, and AI and technology.
Bring us the decision, even if the plan is unfinished.
A principal will help you work out what matters first. The earlier the call, the more we can add. The first conversation costs nothing.
Work with us
For advisers and firms
For advisers
Run your practice on our platform.
Senior lawyers and corporate financiers work with ON as sub-consultants. Bring your expertise and keep your clients and your independence.
Join ONFor professional services firms
The corporate arm your firm doesn't have.
We run the corporate and commercial work your clients need, working as an extension of your team, and refer clients to you in return.
Partner with us



