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Gary May 2017 (2)

Our Senior Clerk, Gary Oliver, has been a clerk for over 40 years. (The legend started in 1981.)

He has overall responsibility for managing and developing the individual practices of each member of Chambers. This also includes the strategic and focused business development and marketing of Chambers, across all areas of practice.

Clients respect Gary’s advice and judgement as to the most appropriate Counsel to instruct. He has built strong relationships with clients worldwide, in particular India, Hong Kong, Singapore, South Korea, Cayman, BVI, Bermuda, USA, Russia, Cyprus, Kazakhstan and Europe.

He is highly regarded by both the independent legal directories, Chambers & Partners and The Legal 500. He was featured as one of the legal stars of 2013 by The Lawyer in the ‘Hot 100’. The Lawyer citation reads, “as Blackstone Chambers’ Senior Clerk, Gary Oliver is a key force behind chambers’ phenomenal success”.

Tel: +44 (0) 207 8227325

Derek May 2017 (2)

Derek Sutton is Deputy Senior Clerk at Blackstone Chambers. He started his clerking career at Blackstone in 1994 and has developed an excellent understanding of all Chambers’ practice areas.

Derek assists Gary Oliver with practice development for all members of Chambers, working closely with clients, from Counsel selection to fee negotiation, providing ongoing support and assistance throughout the lifetime of a matter. Derek also assists Gary and Mat Swallow with marketing initiatives both with UK and overseas clients.

The legal directories describe Derek as “very thorough, responsive, professional, easy to work with, and runs a smooth operation" (Chambers and Partners, 2022), “very personable and great at giving honest recommendations of the right person for a case” (Chambers and Partners, 2022), and “just superb to work with” (Legal 500, 2022). "Derek Sutton stands out in terms of his client care and pragmatism" (Legal 500, 2022). "I have known Derek Sutton for over 10 years. He goes out of his way to get things done for you" (Legal 500, 2022).

Derek was shortlisted by Legal 500 in 2019 category clerk/practice manager of the year. 

Tel: +44 (0) 207 8227327

Adam Sloane

Adam Sloane is Deputy Senior Clerk and has been with Chambers since 2000.

In his role as Deputy Senior Clerk Adam assists Senior Clerk Gary Oliver in the management and development of barristers practices at all levels of seniority.

Adam's time at Blackstone Chambers has provided him with a breadth of knowledge across all of chambers practice areas, enabling him to play a key role in both the domestic and international growth of chambers.

Adam receives high praise in the legal directories: a highly accomplished Clerk who’s professional standards are second to none. He clearly has an extensive knowledge of the Barristers at the Chambers and is a shining star within the organisation." Legal 500, 2021; Adam Sloane in particular is first-rate and makes using Blackstone very easy” Legal 500, 2022; “extremely knowledgeable, friendly and approachable” Legal 500, 2022; “extremely responsive and he understands our clients” Chambers and Partners, 2022. 

Tel: +44 (0) 207 8227326

Dean Tolman

Dean Tolman has been a clerk for over 20 years, with almost 10 of those years at Blackstone Chambers and has an excellent understanding of all Chambers’ practice areas.

Dean has sole responsibility for clerking Sir James Eadie QC, the First Treasury Counsel, and also for overseeing the members of Chambers on the Attorney General’s panel counsel lists. He is also responsible for the diary management and practice development of all members of Chambers, daily liaison and advising clients, distribution of work, fee negotiation, listing of Chambers cases and assisting with marketing initiatives. 

Tel: +44 (0) 207 8227331

Billy Brian

Billy Brian joined Blackstone Chambers in 2019 having spent a number of years at two other leading commercial sets of chambers. He is responsible for the practice management and development of all members of Chambers’ practices and has an active role with chambers marketing initiatives. 

Between 2018 and 2022 Billy was co-chair of the Institute of Barristers Clerks Career Development Committee and sat on the Institute’s Management Committee until 2020. 

The legal directories describe Billy as “charming and responsive” (Chambers and Partners, 2022), “very personable, prompt and accommodating” (Legal 500, 2022), and “hardworking, very approachable and a pleasure to work with” (Legal 500, 2022).

Tel: +44 (0) 207 8227339


Marc Armstrong

Marc Armstrong commenced his clerking career in 2008 and joined Blackstone Chambers in 2017. His main responsibilities include advising clients on the distribution of work, fee negotiation, listing hearings, diary management and assisting with marketing initiatives.

The Legal 500 2022 describes Marc as "excellent – always extremely helpful and responsive”.

Tel: +44 (0) 207 8227330

Adam Fuschillo - Clerk.JPG

Adam Fuschillo started his Clerking career with Blackstone Chambers in July 2008. His main duties within the clerking team include the distribution of work, liaising with solicitors, working with tenants called to foreign jurisdictions, fee negotiations and day to day diary management of tenants. He has successfully completed the BTEC Advanced Award in Chambers Administration.

Adam is described in the legal directories as “easy to deal with and very responsive” and “most helpful and possesses sound knowledge on legal aid billing rate” (Legal 500, 2022). 

Tel: +44 (0) 207 8227329

Danny Compton - Clerk.JPG

Danny Compton started his clerking career with Blackstone Chambers in 2010. Danny is an integral member of the clerking team, covering all areas of Chambers’ practice.

His main duties include liaising with solicitors, advising clients on work distribution, fee negotiation, listing hearings and general day to day management of barrister diaries.

Danny is commended in the legal directories as “really hardworking” (Legal 500, 2022), “very responsive, user-friendly and sensible” (Legal 500, 2022) and “prompt, pragmatic and has a very commercial approach to time sensitive and urgent matters” (Chambers and Partners, 2022).

Outside of work Danny enjoys socialising with friends, going to the cinema and gardening.

Tel: +44 (0) 207 8227338

Sophie Floydd - Clerk.jpg

Sophie Floydd began her clerking career with Blackstone Chambers in August 2015 after graduating from the University of Exeter. Her duties within the clerking team include liaising with solicitors, diary management, distribution of work and fee negotiation with a focus on the most junior tenants.

Sophie is described as “efficient and quick” in the Chambers and Partners 2022 legal directory. 

Tel: +44 (0) 207 8227324


Rio Sully

Rio Sully commenced her clerking career in 2016 and joined Blackstone Chambers in 2022 from another leading Chancery/Commercial set. Her main duties include liaising with solicitors, diary management, distribution of work, listing hearings, fee negotiation and assisting with the day to day running within the clerks room. In 2019 she successfully completed the BTEC Advanced Award in Chambers Administration.

Tel: +44 (0) 207 8227299


Julia Horner, Director (new).jpg

Julia Hornor is Chambers’ director and her responsibilities cover the non-clerking side of management and administration. Together Gary Oliver, our senior clerk, Mat Swallow, Chambers’ deputy director, and Julia are responsible for strategic planning, management and administration of Chambers.  Her areas of responsibility include amongst other matters the recruitment of barristers, pupils, and staff, IT, premises oversight, finance, and corporate governance.

Julia is a member of the LPMA.  Prior to joining Chambers, she worked as a litigation solicitor specialising in commercial and employment law in a City firm.

Time outside work is divided between family, friends, dog walking and making an effort to sing with a choir – time permitting.  A long held ambition is to keep bees - yet to be fulfilled!

Tel: +44 (0) 207 5831770

Mat Swallow, Deputy Director.jpg

Mat Swallow is Deputy Chambers Director and together with Gary Oliver, our senior clerk, and Julia Hornor, our Chambers Director, is responsible for the strategic planning, management and administration of Chambers. 

This is his second stint at Blackstone Chambers, having first been employed as the Communications and Marketing Manager (2005-2007). He was then recruited to launch and run a joint venture between YouGov, the leading research organisation, and Centaur, the listed publisher. Previously, Mat spent seven years as a journalist with The Lawyer magazine, latterly as deputy editor. He rejoined Blackstone Chambers in June 2008.

Working closely with the Senior Clerk and Chambers Director, Mat’s role encompasses practice management and marketing/business development.

Tel: +44 (0) 207 8227301


Lewis Baker

Lewis Baker is the Chambers finance manager and joined Blackstone Chambers in 2017. He is responsible for all matters relating to the financial operation of Chambers. Working closely with the Chambers Director, his responsibilities include heading the accountancy and book-keeping for Chambers' management company and all individual practitioners. 


Matt Stone.jpg

Matthew Stone is Chambers’ Fees Clerk. He joined Blackstone in 2017, having previously worked in other Chambers as a Barristers’ Clerk, before deciding to focus on a career specialising in ‘Fee management’. Matthew works very closely with the Clerks and is responsible for fee collection and billing. He has a vast knowledge of the many different funding mechanisms.


James Thraves

James Thraves is Chambers’ Deputy Fees and Finance Administrator having joined Blackstone in 2018. He previously worked as a Revenue Controller at one of the UK’s largest sets. His responsibilities include all areas of fee collection and billing. 



For information concerning facilities management at Blackstone Chambers please contact Matt Phelan. For any related accounts queries, please contact Lewis Baker.


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Alec Parsons-Smith is Marketing Manager for Chambers. Working closely with the Deputy Chambers Director, Mat Swallow, and the marketing team, Alec has responsibility for the development and implementation of Chambers’ marketing strategy. Alec has over 15 years’ experience in UK and US law firms, working on a wide variety of communications and business development projects.



Courtney Rada is the Marketing & Communications Executive for Chambers. Courtney is responsible for co-ordinating submissions to legal directories, managing the Chambers’ digital presence, producing internal and external communications, and acting as the first point of contact for press requests. Courtney is currently pursuing a PhD at Royal Holloway, University of London and has previous experience working in the financial sector.



Stevie Moore is the Events Manager for Chambers, looking after the conferences and seminars, corporate functions and the marketing that goes with this. These events range from informal networking events to large-scale conferences with guest lists ranging from 10 to 1000. Stevie has project responsibility from planning to post-event analysis, involving management of fellow support staff and negotiation with external suppliers. Stevie has a degree in event management. 


Amelia Menendez - Events & Marketing Executive.jpg

Amelia Menendez is Events & Marketing Executive for Chambers, assisting Stevie Moore in the marketing and organisation of conferences, seminars and Chambers functions and events. Amelia has a degree in History and also spent a year studying at the University of Sydney.



Maggie Day - Pupillage Administrator (Maternity Cover).jpg

Maggie Day is currently the Graduate Recruitment and Pupillage Administrator for Chambers, and is responsible for the administration of Chambers’ graduate recruitment together with the administration of pupillage for Chambers’ current pupils through their year of training. Responsibilities also include the organisation of Chambers’ attendance at law fairs, and other events with universities and outreach organisations.

Carla Rodriguez

Carla Rodriguez is the Graduate Recruitment and Pupillage Administrator for Chambers.

Carla is currently on maternity leave. Please contact Maggie Day with all pupillage enquiries.

+44 (0)207 5831770