Dispute Support

EXPERT SUPPORT, WHATEVER THE CASE

We’re recognised as industry leaders in dispute support. Our deep industry knowledge and strong economic expertise helps us support our clients in all types of disputes, across the globe.

What our clients say

The Frontier team is a joy to work with. They master the art of making a challenging subject accessible to the layman and are instrumental in shaping the strategy of the case.

VP and Head of Antitrust, ABB

Frontier Economics work hard, have a cool attitude, possess extensive knowledge, provide clear insights, and always ensure a professional outcome.

Head of European and Economic Regulatory Affairs, Orange

They understand the difference between telling me what I want to hear and telling me what I need to know.

Public Policy Director, Vodafone Group Services Ltd

Broad experience, deep expertise

Frontier's substantial experience in dispute resolution spans a wide variety of forums, including regulatory bodies, courts, and arbitration panels. We are well-versed in providing expert witness testimony and authoritative economic analysis across diverse industries. Our deep industry knowledge in a range of industries and our strong economic expertise allow us to identify the most relevant evidence and arguments, enabling us to rigorously evaluate theories of harm and assess the merits of each case. This expertise also supports our ability to determine the most accurate counterfactuals for the quantification of damages.

Our full range of dispute support services includes:

Development of economic arguments
Quantification of potential damages
Expert reports
Document disclosure
Assistance in hearing preparation
Expert witnesses in hearings

Clients value our way of working: we’re hands-on, we’re clear communicators, and we have a diverse team situated across the globe.

Recognised as industry leaders in dispute support

We’re recognised as industry leaders in dispute support:

2024 Band 2 Chambers and Partners Litigation Support – Economic Analysts
2024 Global Arbitration Review 100 – Expert Witness Power Index
2024 Global Competition Review 100 – Economics Outstanding
2024 Who’s Who Legal – 31 economists featured
2023 Global Arbitration Review 100 – Expert Witness Power Index
2023 Global Competition Review 100 – Economics Outstanding
2023 Who’s Who Legal – 30 economists featured
Diamond rating by Consultancy.uk

Antitrust and competition damages

We support clients across the full range of competition disputes, including collective actions, follow-on and standalone claims for damages, and competition authority investigations.

Frontier has been involved in nearly every high-profile European competition litigation case in recent years. We have extensive experience on both the defendant and the claimant side, supporting multi-jurisdictional cases and all approaches to damages estimation, from econometric analyses to model-based and theoretical assessments.

Recent cases:

Justin Le Patourel v BT Group PLC (Voice Telephony)
Scout24 v Immowelt (Online Marketplaces)
Various Claimants across Europe v Volvo Group (Transport)

Read more about our work on Competition

Investor–state disputes

Frontier’s experts testify in investor–state disputes across the world. We have provided testimony in more than 20 disputes in recent years, across sectors including energy and telecoms.

We assist both claimants and respondents (including sovereign states) in a wide variety of arbitration fora, including ICSID, the ICC, UNCITRAL, the PCA, VIAC and SCC.

Recent cases:

Investors vs State of Bulgaria (Energy)
Investors vs Government of Romania (Energy)
United Group B.V vs Republic of Serbia (Communications)

Tax disputes

Frontier supports taxpayers and authorities through negotiations and in litigation, around the world. We offer advisory support through negotiation processes, as well as expert witness testimony and expert report writing.

In transfer pricing, we help clients apply the OECD Guidelines in disputes. Our experts have testified in all three of the UK transfer pricing disputes that have reached trial to date.

Recent cases:

BlackRock HoldCo 5, LLC -v- HMRC (Financial services)
Bluecrest Capital Management Cayman Limited -v- HMRC (Financial services)
Global FMCG business – negotiations with UK tax authority (Retail and consumer)

Commercial disputes

We support our clients in commercial cases, with a particular focus on cases across the energy sector, including electricity, hydrocarbons and heat markets. Our expertise ranges the whole value chain, including wholesale contracts, transportation and storage.

We analyse the economic case for contract cancellations, non-deliveries, price reviews and estimate damages in those situations.

Recent cases:

Natural gas supply contract – advising German gas importer in the context of a price review of a Norwegian gas import contract (Energy)
Gas network contract entry and exit rights for natural gas between two countries (Energy)
Electricity contract - dispute between state-owned electricity companies of Slovenia and Bosnia over damages caused by the non-delivery of electricity (Energy)

Judicial reviews and administrative litigation

Frontier provides an end-to-end expert witness service for clients appealing regulatory decisions, including strategic advice, technical support and expert testimony.

We’ve advised clients before the European Commission and national courts, and have provided expert witness services for both regulated private entities and public bodies. We have a strong track record of advising when appeals are likely to be successful and – just as importantly – when appeals are less likely to succeed.

Recent cases: