Our Partners
Costa and Natalia are regularly instructed in high profile cases that receive significant media attention. Their success rate, coupled with their great client care skills, have ensured a strong own client following.
Costa Cantaris
Partner
Costa Cantaris obtained his Law degree at Queen Mary University, one of Europe's leading universities in the field of law, before completing his Legal Practice Course at the College of Law in London.
Costa has vast experience in all areas of Criminal Law. He is regularly instructed in high profile cases involving serious organised crime and is instructed on cases nationwide.
Costa prides himself in achieving excellent results when the odds are heavily stacked against his clients. He is known for his tactical nous and legal knowledge. He regularly has cases dismissed prior to trial by identifying flaws in the opponent's case and drafting legal arguments that are successfully argued at Court.
"Costa Cantaris is a very determined individual who strives for the best results for his clients"_ - Legal 500, 2020
‘Costa Cantaris is a founding partner of the Firm. I have known him since he was a trainee solicitor. Even then it was obvious he would head his own firm. Professional, hardworking, bright, makes the hard simple – these are just some of the qualities clients have mentioned to me about his work.’_ Legal 500, 2023
‘Costa Cantaris is a superbly talented solicitor as well as an outstanding communicator who consistently delivers on behalf of every client. Natalia Locke has an enviable work ethic. They are the definition of excellence.’_ - Legal 500, 2024
'Seldom have I come across a solicitor who have better client care skills - no step is too small, far or hard for Costa Cantaris. He is recommended constantly by existing clients to new ones'. - Legal 500, 2025
'Costa Cantaris is praised by clients for being ’the perfect litigator’ - Legal 500, 2026
Natalia Zimareva-Locke
Partner
Natalia is a fluent Russian speaker; she has written a number of articles on police powers and procedures for a London-based Russian-language newspaper and has appeared on television. Natalia is regularly instructed in complex criminal and extradition cases. Natalia obtained her Post-Graduate Diploma in Law from Middlesex University and subsequently completed her Legal Practice Course at the College of Law in London.
In addition to legal qualifications, Natalia is also a qualified engineer (she holds a degree in Automation of Biotechnical Systems from Moscow Academy of Applied Biotechnology) which enables her to apply her technical and mathematical knowledge to complex fraud cases.
Locke ‘always goes the extra mile in putting clients at ease and in making sure no stone is left unturned on their cases’. Legal 500 -2025
Locke impresses clients with her ‘preparation and attention to detail’, and is particularly well-versed in theft cases. ' Legal 500 - 2026
Mark Davies
Senior Legal Executive
We are delighted to announce that Mark Davies, a Fellow of the Institute of Legal Executives, has joined us. Mark has over 30 years of experience in the field of criminal litigation. Mark has been involved in a great number of high-profile cases, including the recent Hatton Garden conspiracy. Since joining us Mark has enjoyed a remarkable run of success in his Crown Court cases, including serious high profile conspiracies.
