Specialist Costs Lawyers in the UK
Harman GJK is a specialist firm of costs lawyers based in the UK. We advise on complex disputes, cost budgeting, detailed assessment, and recovery strategy across a wide range of litigation, including commercial litigation, clinical negligence, and group actions.
We are routinely instructed on complex high value clinical negligence claims, achieving significant costs recoveries for clients. We are also regularly instructed in large scale Group Actions as well as by class representatives in the Competition Appeal Tribunal(CAT), providing expert support in this complex area.
The Harman GJK team have deep knowledge of clinical negligence, human rights, commercial and group actions to offer comprehensive costs advice and handle the most sensitive and challenging costs disputes.
What we offer
We play a key advisory role throughout the litigation process. We analyse costs exposure, proportionality risks, budgeting disputes and strategy. This means costs are built into your decision-making from the start, not treated as an afterthought. Our approach is always client-focused.
Our People
We work closely with fee earners, counsel and the judiciary. Many litigation teams bring us in at the very start of a case. They know that strong costs management improves outcomes. Working together, we strengthen strategy, improve budgeting and deliver consistent results.
Harman GJK supports the professional development of legal practitioners. We offer free costs seminars and in-house training sessions, led by our own experts. These sessions keep professionals up to date with the latest developments in legal costs.
Client Insights
Harman GJK’s service ethos is built on responsiveness, clarity and commercial awareness. Clients frequently commend our ability to turn work around quickly without compromising quality and our willingness to go above and beyond expectations.
Our goal is to build strong relationships with our clients by understanding their unique situations and delivering effective solutions.
are proud to be
taking part in The London Legal Walk,
Tuesday 9th June 2026
If you would like to show your support please sponsor our team!