Commercial law at the highest level. We act for founders, boards, and institutions where the stakes are real and the advice must be right the first time.
Founded in 1996, Fortis & Partners has grown into one of the most respected commercial law practices in the UK. We do not act for everyone — we act for the clients where our involvement makes a material difference.
Our partners have trained at the highest levels of the profession. Several have held in-house counsel positions at FTSE 100 businesses. We understand the commercial reality because we have lived it.
Every document reviewed, every clause interrogated. We do not miss things.
Absolute confidentiality is not a policy. It is a professional obligation we take personally.
Complex legal matters explained in plain terms. Always. No exceptions.
Six core disciplines. Each led by a partner with over two decades of specialist experience.
Mergers, acquisitions, management buyouts and disposals. We have advised on transactions from £5M to over £800M across every major sector.
Learn MoreRobust representation when disputes arise. We prepare every case as though it will go to trial, which means most do not need to.
Learn MoreCommercial property acquisitions, development finance, leaseholder matters and portfolio restructuring for investors and developers.
Learn MoreSenior executive contracts, tribunal defence, restrictive covenants and TUPE. We act for both employers and senior employees at the highest level.
Learn MoreInsolvency, administration, CVAs and creditor negotiations. When a business faces a critical moment, we provide calm, strategic guidance.
Learn MoreTrade mark registration, IP due diligence in transactions, licensing agreements and enforcement action for businesses built on innovation.
Learn More
"Fortis didn't just close the deal. They identified three structural risks our previous advisors had missed entirely. That due diligence alone saved us seven figures."
A clear, structured approach from initial enquiry to matter conclusion. No ambiguity about what happens next or who is responsible.
A confidential conversation to understand your matter and whether we are the right fit. No charge, no obligation.
We set out exactly what we will do, in what timeframe, and at what cost. Agreed in writing before work begins.
Partner-led from start to finish. The person you brief is the person doing the work. No hand-offs to junior associates.
Matter concluded. Full file handed over. A follow-up call at 30 days to ensure the outcome holds.
"We brought Fortis in late on a deal that had gone wrong. They untangled a genuinely complex situation with a composure that impressed everyone in the room, including opposing counsel."
"Claire handled our employment tribunal with an attention to detail and a strategic intelligence that was exceptional. The outcome exceeded what we thought was possible."
"Four acquisitions in three years, all advised by Fortis. The consistency of quality and the depth of commercial understanding they bring is simply unmatched in our experience."
Our partners are available for urgent matters outside standard hours. If your situation requires immediate counsel, we will make time.
All enquiries are treated with strict confidentiality. A partner will respond within four working hours during business hours, or by 9am the following morning.
We will be in touch within four working hours.