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Keidan Harrison support individuals and businesses in resolving disputes, safeguarding their futures and maximising opportunities.

Keidan Harrison LLP is a boutique City of London law firm, established in May 2020 and specialising in dispute resolution and insolvency. We act for international and UK businesses funds, asset managers, pension trustees, insolvency practitioners and high-net-worth individuals. Our approach is partner-led and highly personalised, ensuring our clients’ needs are at the forefront every step of the way.

Everything we do is consistently focused on our clients’ objectives and we work tirelessly to achieve your desired outcomes whilst providing realistic and honest appraisals at each step of the way. But it isn’t only about getting the right result. We ensure that throughout our client partnerships, we’re delivering the high level of value and efficiency. Whether that be using innovative technology to streamline our services or utilising our established relationships with leading third-party litigation funders, we provide unique, tailored solutions for our clients. In addition, as a specialist disputes-focussed firm, we have the benefit of being free of conflicts of interest – meaning we can act on cases against institutions and large multi-nationals and other corporates, that most other law firms, which have substantial transactional practices, are unable to take on.

Our founding partners have been trusted by clients for many years to assist them on substantial and often challenging cases. They have a reputation for their entrepreneurial, dynamic and commercial approach as well as their technical expertise. As a firm, we’re passionate, determined and leave no stone unturned when it comes to delivering the best possible results.

Undisputedly different.


We take pride in not being the same as other London law firms. We use our differences to make a big difference to clients.

Find out how

Our people

We’re a team driven by passion, determination and results.

Marc Keidan

Marc co-founded Keidan Harrison LLP in May 2020. He is recognised by the leading legal directories as one of the UK’s top disputes lawyers. Marc has extensive litigation and arbitration experience across a variety of disputes, both domestic and international.

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Luke Tucker Harrison
Partner & Solicitor Advocate

Luke co-founded Keidan Harrison LLP in May 2020. He has substantial litigation and arbitration experience both as instructing Solicitor and as a Solicitor Advocate. Luke is known for his innovative approach to value engineering dispute resolution and his outcomes focus.

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Join us

Be part of our future

Are you great at strategic thinking and getting the best results for your clients? If you’re technically excellent, energetic, hands-on, client-focused and can think creatively, then you may wish to apply to join our growing team.

Current vacancies
Join Keidan Harrison