The Hidden Influence of Third-Party Funding on Arbitrator Selection: Conflict, Strategy or Legitimate Commercial Interest?

Third-party funding (TPF) in international arbitration has grown from a niche financing arrangement into a structural feature of the global dispute resolution landscape. While its commercial utility is well-documented, a comparatively underexplored dimension concerns its influence on arbitrator selection — the process by which parties nominate, challenge, or seek to disqualify arbitrators. This paper examines whether the participation of a third-party funder introduces conflicts of interest that compromise arbitral impartiality, or whether such concerns, though legitimate in appearance, ultimately reflect strategic behaviour dressed in the language of procedural fairness. Drawing on an analysis of institutional rules, investment arbitration jurisprudence, and scholarly discourse, the paper argues that the relationship between TPF and arbitrator selection occupies a grey zone between genuine conflict, tactical manoeuvre, and legitimate commercial interest. The paper finds that current disclosure regimes remain inadequate, that arbitral institutions have responded unevenly, and that no uniform global standard governs funder-arbitrator relationships. It concludes with reform proposals directed at arbitral institutions, domestic legislatures, and the international arbitration community, aimed at achieving systemic transparency without unduly burdening the commercial viability of TPF.