Aceris Law is an award-winning boutique international arbitration law firm known for its loyalty to its clients, excellent work, outstanding results, and competitive legal fees. Aceris Law is recommended by the Legal 500 in the field of international arbitration, ranked in the GAR 100, ranked by Leaders League and Décideurs as one of the best firms in the field of international arbitration, the winner of the Trophée du Droit award for best international firm in Switzerland, named “Best in Arbitration” and ranked as Arbitration and Mediation Law Firm of the Year in separate United Kingdom awards, and also highly recommended in a number of other prestigious international rankings. Aceris Law Partner William Kirtley was selected as the Best of the Best in multiple years, was named as Who’s Who in the field of international arbitration, and has been named as one of the Ones to Watch in international arbitration. Most importantly, our clients respect our hard work, professionalism and absolute dedication to our clients’ interests, and they appreciate the fact that they are obtaining the best value in the field of international arbitration for the highest quality arbitration legal representation available, with an outstanding track record of success for past clients.
Feedback Independently Researched by the Legal 500
“Aceris Law stands as one of the best boutique law firms in arbitration. Excellent team, hands on and results oriented.”
Feedback Independently Researched by the Legal 500
“An exceptional mastery of arbitration, a touch of creativity combined with technology makes them unrivalled, the whole team is united and respectful and above all works as one, harmony, and performance, with the elegance of the greatest firms.”
Feedback Independently Researched by Global Arbitration Review
“Excellent in every way”
Feedback Independently Researched by Global Arbitration Review
“Exceptional responsiveness, analytical skills, and dedication”
Feedback Independently Researched by the Legal 500
“Aceris Law has assembled a youthful, flexible, energetic team of multi-language professionals who bring much to the table and combine their knowledge to bring representation to another level.”
Feedback Independently Researched by the Legal 500
“William Kirtley is a tenacious dispute lawyer, very detail-oriented and highly organised. Nina Jankovic is a fantastic senior associate, skilled in both written and oral advocacy, very effective yet composed. She has immense expertise in the construction field.”
Feedback Independently Researched by the Legal 500
“William Kirtley and Nina Jankovic are astute lawyers in a class of their own; they demonstrated a high degree of knowledge and comprehension of financial, commercial, and technical matters, which they connected easily to the legal and factual aspects of the matter.”
Feedback Independently Researched by Chambers and Partners
“Their ability to handle complex and sophisticated matters is very strong. The firm has profound expertise and experience in international arbitration matters. The depth and breadth of their team is very strong. Their service levels and responsiveness are very strong. The service level is excellent. The senior partner is very responsive and available. The team always adhered to deadlines. Their ability to deliver to budget and provide overall value for money is very strong – this is a point in which Aceris is exceptional. The breakdown of fees was very transparent, as was the overall value for money.”
Feedback Independently Researched by Chambers and Partners
“William Kirtley’s client service, general level of service, level of sophistication and commercial awareness were all very strong. He is an exceptional lawyer with extensive knowledge.”
Feedback Independently Researched by the Legal 500
“Excellent work in clarification and simplification. The teamwork is well-balanced between partner and associate. William Kirtley communicates clearly, offering strong opinions and well-founded recommendations. Nina Jankovic is highly efficient, detail-oriented and responsive.”
Feedback Independently Researched by the Legal 500
“William Kirtley is an excellent lawyer. He is easy to deal with and makes himself available. Nina Jankovic is also a great lawyer with ability to handle complex matters.”
Feedback Independently Researched by the Legal 500
“The Aceris team was very successful in identifying the critical facts and in structuring the legal arguments in the case that we worked with them.”
Feedback Independently Researched by the Legal 500
“William Kirtley is the managing partner. He is well-versed with each case handled to the smallest of details. He is very professional in his approach to client care, work delivery, and work product. He is a credit to himself, his expertise, and his profession. Nina Jankovic is a very smart and brilliant young lawyer. She is very thorough and highly skilled in identifying the most pertinent issues and pointing this out to the client. She is easy to work with in terms of responding to queries promptly and concisely and assisting others when able to do so. She is certainly a name to watch!”
Feedback Independently Researched by the Legal 500
“I had the pleasure of working with Aceris Law. They are a small-sized boutique firm that provides the same quality of service as the top-tier law firms at a fraction of the fee – they offer more value for their client’s money. I am hoping to work again with Aceris Law.”
Feedback Independently Researched by the Legal 500
“A young team, very dynamic, responsive, and above all very connected to tech, they are the new generation of lawyers, where technology coexists with service, for several years I have called on several firms of all types from afar Aceris is by far the most competent and efficient firm with exceptional courtesy and professionalism.”
Feedback Independently Researched by Global Arbitration Review
“A quality of specialist legal service I have never experienced before”
Feedback Independently Researched by Global Arbitration Review
“Precise, effective, accommodating and knowledgeable”
Feedback Independently Researched by Global Arbitration Review
“Very knowledgeable on ICC arbitration”
Feedback Independently Researched by the Legal 500
“William Kirtley is characterised by a very sharp mind, he is also very honest.”
Trophée du Droit, Argent
“Best International Law Firm.”
Legal 500
“Recommended” for International Arbitration.
Leaders League
“Highly Recommended” for International Arbitration.
Leaders League
“Arbitration Boutique that Punches Above Its Weight.”
CV Magazine’s Corporate Excellence Awards (United Kingdom)
“Arbitration Firm of the Year – Switzerland.”
Finance Monthly (United Kingdom)
“Arbitration and Mediation Law Firm of the Year.”
The Best of Finance (United Kingdom)
“Arbitration and Mediation Law Firm of the Year.”
Corporate Vision Awards (United Kingdom)
“Best in Arbitration.”
Getting the Deal Through (United Kingdom)
“National Expert” on French arbitration.
K.Y., Chairman of Oil & Gas Company (USA)
“You couldn’t possibly be working with a more diligent and personable team of lawyers, most especially, the Managing Partner, William Kirtley. Aceris is about the best law firm in services and cost I’ve ever dealt with. Every member of the Aceris team is truly exceptional and dynamic, a quality that is truly personified in the person of the managing partner, William Kirtley. As earlier stated, Aceris is quite an exceptional team of lawyers, the reason I rank the firm very high on the list of law firms my company has worked with in our over 24 years in business.”
L.A.M.C., Secretary of State, Ministry of Energy and Water (Angola)
“I would like to express my heartfelt gratitude to the Aceris team on behalf of the Angolan Government, specifically to the Managing Partner William Kirtley and his Associate Nina Jankovic. Their intelligence, passion, dedication and professionalism are beyond what any client would expect. They were well organized and worked closely with our technical personnel to prepare the case in a thorough manner, always ensuring that our concerns and suggestions were properly addressed. I am blown away by how quickly they could grasp the very technical engineering aspects of the case.”
R.K., C.O.O. of Engineering, Procurement & Construction Company (Oman)
“The team was very systematic, professional and thorough in their approach. Once the initial engagement agreement was done, they never bothered about the man hours spent on the job. Their objective was to present the case with a hundred percent winnable angle. Their speed in grasping indicates their previous exposure. Overall we found them very professional with a friendly attitude yet unhesitating in demanding required data relentlessly. Mr. William Kirtley is a strategic thinker with excellent memory and recall ability enmeshing various previous judgments across the globe into the present case and Ms. Nina Jankovic is a methodical researcher with a very sharp intellect, cutting through unnecessary information with excellent drafting ability to present the case succinctly.”
S.A.U., Managing Director of Oil & Gas Company (Oman & USA)
“We find them very methodical. Quick in grasping as they have varied exposure. They specialise in arbitration. They understand the subtle nuances. We find their approach very friendly yet professional, timely, easily approachable, very responsive. Honestly, the entire team were supportive with professional approach. Specifically, Mr. William Kirtley: He has a knack of anticipating the possible questions by the arbitrators, possible defences by the respondents. His weakness is adorable i.e. his charges are reasonable.”
F.P., General Counsel of Publicly-Listed Company in the Petrochemical Industry (Malaysia)
“This [arbitration] result is by far beyond any expectations and I still can’t believe it happened. Excellent news to all of us. Unbelievable.”
C.B., General Counsel of Blockchain-Related Technology Firm (USA)
“Aceris Law LLC’s Arbitration Group, led by William Kirtley, shows exceptional judgment at all levels. They are client-oriented and have effectively represented my organization in a prompt and timely manner across several time zones. My Team has been kept fully informed and has been able to rely on William Kirtley’s judgment in making key decisions during the course of the arbitration.”
G.M., CEO of Upeco Trading A.G. (Switzerland)
“I highly recommend [William Kirtley and Aceris Law] for international arbitration legal counsel. He is an excellent practitioner and a top-notch professional. He is highly reliable and will never give up on a client’s case. He is very experienced as legal counsel and a very good person as well. He can see all details which could be decisive in the arbitration. His goal is to bring meritorious cases to victory and he does the best of it. I recommend him as a professional and a person who never abandons a case halfway, no matter how hard a case can be.”
A.A., Vice President of Construction Company (Saudi Arabia)
“[The] Aceris team is very good, hard working, competent and cost efficient with comparison to other law firms that works in the same field. They have a very high capacity to perform legal research and their lawyers are very well trained in the arbitration field.”
T.L., CEO of Book Publishing Company (Canada)
“Hands down the best team of lawyers you could have in your corner. With Aceris Law you are guaranteed to receive the best legal representation in the field of international arbitration for very reasonable legal fees.”
C.P. and D.L., Owners and Directors of Communication and Technology Solutions Company (Philippines)
“Aceris’ lawyers are friendly and professional, their legal drafting is excellent, their legal fees were reasonable, their strategy was successful and we highly recommend Aceris Law for international disputes that are capable of resolution through arbitration, which is their specialty. Although they are based in Europe, the dispute was in California and our company is located in the Philippines, the time zones posed no practical constraints since they are well-equipped with the latest technology and available around the clock by videoconference.”
A.P., CEO of Road Construction Company (Kazakhstan)
“I want to thank you for your work. This case was very important. I am glad that I found you and asked for professional help. I can’t express all my gratitude. I will definitely recommend you.”
S.R., CEO of S.A.R.L. Mining Company (Singapore)
“[William Kirtley]’s a great lawyer. I would recommend William.”
S.S., Perim Associates (Bangladesh)
“I have known [William Kirtley] for two decades and have no qualms whatsoever highly recommending him as counsel in any international dispute, be it arbitration, mediation or other forms of ADR. William is smart, easy to work with, transparent, hard-working and highly responsive. He also has an excellent understanding of international arbitration case law and strategy, combining great breadth and depth in commercial and public international law, and is an attorney of great integrity.”
R.G., Director at Oxfirst Ltd. & Fellow at Said Business School, University of Oxford (United Kingdom)
“[Aceris] did not count his time to assure our business went from success to success. As an attorney [William Kirtley] is reliable, dynamic, loyal and committed. I can recommend William to any firm who is looking for an attorney who will seek 100% to guard the interests of his client.”
