Clare Connellan

Partner, London


Clare Connellan describes as “extremely accomplished” and “held in high regard for her first-rate expertise in complex construction arbitrations under various rules”.
Who’s Who Legal 2020

Clare Connellan stands out as “a skilled and clever lawyer” who is much-admired in construction disputes.
Who’s Who Legal, Future Leaders 2018


Clare is a Partner based in White & Case's London office and works with the International Arbitration and Construction and Engineering Groups. Clare advises companies, state entities, contractors, owners and operators on the resolution of complex disputes, with a particular focus on disputes within the construction and engineering industry.

She has been involved in arbitrations under the ICC, LCIA, LMAA and CRCICA rules, as well as ad hoc arbitrations, including under the UNCITRAL rules. Clare also advises on alternative dispute resolution, including mediation, and is a CEDR-accredited mediator. She has spent time on secondment to the LCIA as counsel.

Clare also leads the firm's Business & Human Rights Interest Group and is consulted in relation to issues such as the UN Guiding Principles on Business and Human Rights, supply chain risk assessments and the Modern Slavery Act, as well as business and human rights training, and ESG and sustainability matters.

Clare "brings alternative views to the table and unexpected solutions" (Legal 500, 2018). She stands out as "a skilled and clever lawyer" who is much-admired in construction disputes (Who's Who Legal, Future Leaders 2018). Peers say Clare is a "fast, efficient and a quick thinker" (Legal 500, 2019), "a very talented disputes lawyer", and "particularly knowledgeable in the field of complex construction disputes" (Who's Who Legal, Future Leaders 2019). Clare was recently honoured on the inaugural Legal 500 International Arbitration UK Powerlist 2019.

Chambers Global 2021 identified Clare as a notable practitioner for Business & Human Rights: "Clare Connellan advises corporations and mining companies on human rights due diligence, supply chain risk assessment and compliance with modern slavery legislation. Sources hail Connellan as a "fantastic lawyer," who is "great in this area."

Bars and Courts
Solicitor Advocate
England and Wales

Accredited Mediator, Centre for Effective Dispute Resolution

Queen Mary, University of London
International Commercial Comparative Arbitration, School of International Arbitration
Queen Mary, University of London
Nottingham Law School
Maitrise en droit privé
Université de Paris I Pantheon Sorbonne
English law and French law
King's College London


Representing Grupo Unidos por el Canal S.A. and its shareholders Sacyr S.A., Salini-Impregilo S.p.A., and Jan De Nul N.V. in an ICC dispute with the Panama Canal Authority relating to the US$5.5 billion Panama Canal expansion project known as the "Third Set of Locks Project";

Representing the Ad Hoc Group of Noteholders (AHG) on the financial restructuring of Petra Diamonds Limited and its group;

Advising an international consortium on pre-arbitration disputes on a major infrastructure project in north Africa.

Advising a major European energy provider in relation to the construction and installation by contractors of a nuclear power plant (ICC rules).

Representing a shipbuilder in a multi-million euro LCIA arbitration concerning the major refurbishment of an FPSO, and related arbitration with its piping subcontractor.

Representing the lead member of a contractor consortium on its legal position and on ICC arbitration proceedings against a government entity in relation to claims and counter-claims in respect of a major railway project.

Advising on dispute resolution and strategic considerations in relation to turnkey contracts and for the supply of spare parts for a renewable energy project.

Representing one member of a consortium involved in the design and construction of a power plant in the Middle East in an ICC arbitration and related issues.

Advising a shipbuilder on an arbitration under LMAA Rules.

Advising an Asian EPC contractor concerning entitlements against the employer and sub-contractors arising out of an independent infrastructure project in a Middle Eastern state, including a contract for the supply of equipment.

Advising a major European energy provider on disputes arising out of a sale and purchase agreement for a refinery.

Advising international companies on arbitration and tiered dispute resolution contract provisions.

Advising a consortium on aspects of its tenders for roles in a major infrastructure project in the UK.

Advising a major leisure complex operator on a multi-party dispute regarding structural defects in a development in the UK arising out of related contracts with conflicting dispute resolution provisions and associated appointments for remedial works.

Speaking Engagements

"Trends in International Construction Arbitration", Queen Mary/ AFSIA 5th annual conference (London, June 2019) 

"Issues of Arbitrability", African Arbitration Academy (London, June 2019)

"Hot topics in mediation", CPR International Mediation Competition (São Paulo, April 2019) 

"Arbitration of business & human rights disputes", World Law Forum (London, March 2019)

"Recent developments in international commercial arbitration", guest lecturer, QMUL LLM webinar (June 2018) 

"Compliance and transparency in international construction contracts", Congreso Internacional de Derecho de la Construcción, SCL Chile y la Universidad del Pacifico (Santiago de Chile, November 2017)

"Delay analysis and the SCL protocol", Congreso Internacional de derecho de la Construcción, SCL Peru y la Universidad del Pacifico (Lima, November 2016)


Compensatory Damages Principles in Civil- and Common-Law Jurisdictions – Requirements, Underlying Principles and Limits (Chapter 1 in GAR Guide to Damages in International Arbitration, 2019, with Elizabeth Oger-Gross and Angelica André)

The Global Damages Review, 2nd edition (2019), The Law Reviews, United Kingdom chapter

Selected recent articles (available on Lexology) including

Court of Appeal confirms no liability for UK mining company in relation to human rights abuses in Sierra Leone (March 2020)

The business case for understanding human rights and ESG benchmarks (January 2020) 

Blowing the whistle on inadequate protections: how does the new EU Whistleblower Directive improve on existing legislation (November 2019) 

Digitalising the mining and metals global supply chain: 2019 sustainability update (October 2019) 

Supreme Court finds that UK-domiciled parent company may owe duty of care to third parties for the acts of its foreign subsidiaries (April 2019) 

Delivering value and managing risks: how human rights are relevant for business (April 2019)