How does arbitration funding differ from court-case funding?

In five ways. Procedure is set by the parties' rules and the tribunal, not a court; proceedings are often confidential; loser-pays costs are common; there is usually no appeal, only limited annulment or set-aside; and awards are enforced through treaties such as the New York Convention or, for ICSID awards, the ICSID Convention. Each changes the timeline, the downside and the path to cash.

Must funding be disclosed in arbitration?

Increasingly, yes. ICSID's 2022 Arbitration Rule 14 requires a party to file a written notice of 'the name and address of any non-party from which the party, directly or indirectly, has received funds for the pursuit or defense of the proceeding' in return for remuneration dependent on the outcome, including who owns and controls a corporate funder, and lets the tribunal order further information about the funding agreement.

Can a funded claimant be ordered to post security?

Yes. Under ICSID Arbitration Rule 53, the tribunal may order security for costs after considering the party's ability and willingness to comply with an adverse costs decision, and 'shall consider all evidence ... including the existence of third-party funding.' If security is not provided, the tribunal may suspend the proceeding and, after 90 days, discontinue it.

Can an arbitration award be appealed?

Generally no. ICSID Convention Article 53 says an award is binding and 'not ... subject to any appeal or to any other remedy except those provided for in this Convention.' Annulment under Article 52 is limited to five grounds, such as a manifest excess of powers or a failure to state reasons, and must be sought within 120 days. Other awards can be set aside only on limited grounds in the courts of the seat.

How are awards enforced?

ICSID awards under Article 54 must be enforced in Contracting States 'as if' they were final local judgments, subject to Article 55's preservation of immunity from execution. Other awards are recognized under the New York Convention, which had 172 parties on UNCITRAL's status page on November 9, 2026. Enforcement against a state still runs into immunity from execution.

Jurisdiction, time bars and costs, among others. Silver Bull's claim against Mexico was dismissed on May 29, 2026 on jurisdiction and/or time-bar grounds after a full hearing, with about $998,000 of Mexico's costs awarded against it; its funder terminated the agreement. Its funding covered legal, tribunal and expert costs and defined corporate operating costs, up to $9.5 million.

International Arbitration Finance

Litigation Finance & Legal Claims

Definition

International arbitration finance is funding for claims decided by arbitral tribunals rather than national courts, either commercial arbitrations under contracts or investor-state arbitrations under investment treaties, often at ICSID. Burford's guide says 'international arbitration and patent matters typically require a longer diligence process,' and its 10-K lists international arbitration among the claim types it funds.

Why it matters

Arbitration offers funders a single-instance decision, often confidential, with no appeal on the merits and treaty-based enforcement, which can shorten the path to cash. It also brings loser-pays costs, security for costs, increasingly mandatory funder disclosure and, against states, immunity from execution. Investor-state claims add jurisdictional hurdles that can end a case after years, as Silver Bull's did. For an investor, arbitration exposure is often concentrated and long-dated. Ask how many of a fund's cases are arbitrations, how many are against states, and how adverse costs and security are covered.

Common misconceptions

•No appeal does not mean no further proceedings, because ICSID awards can be annulled and other awards challenged at the seat.
•Confidentiality does not cover the funder's identity at ICSID, because Rule 14 requires the funder to be named.
•A funded claimant is not protected from security orders, because ICSID Rule 53 treats third-party funding as relevant evidence.
•Treaty enforcement is not a guarantee of payment, because immunity from execution survives under ICSID Article 55.
•Losing an arbitration does not cost only the funding, because loser-pays costs awards are common, as Silver Bull's $998,000 order shows.

Technical details

Worked example (illustrative): an investor-state claim's timeline

Year 0: request for arbitration registered; funder notice filed under Rule 14.

Year 1: tribunal constituted; possible security for costs application under Rule 53.

Years 2 to 3: written phases, jurisdictional objections, hearing.

Year 4: award; 120 days for an annulment application.

Years 4 to 7: annulment (about 18 to 36 months, per Silver Bull's estimate) and enforcement against a state with immunity from execution. A 2.0x outcome at year 7 is about 10.4% a year.

Arbitration vs court litigation

Forum: tribunal chosen under the parties' rules vs a national court.

Privacy: often confidential vs public record.

Costs: commonly loser-pays vs the forum's rule (each side pays its own in the US).

Review: annulment or set-aside on narrow grounds vs full appeal.

Enforcement: ICSID or New York Convention vs recognition of foreign judgments.

What AltStreet's reviews and filings show

Silver Bull Resources' funding agreement with Bench Walk Advisors (September 5, 2023) committed up to $9.5 million for legal, tribunal, expert and defined corporate costs of its ICSID arbitration against Mexico; on May 29, 2026 the tribunal dismissed the claim, concluding it lacked jurisdiction and/or the claim was time-barred, and ordered Silver Bull to pay about $998,000 of Mexico's legal costs, and Bench Walk then terminated the agreement (Silver Bull 10-Q for July 31, 2026); funding up to $9.5 million for legal, tribunal, expert and defined corporate costs.

ICSID Convention Article 53 makes an award 'binding on the parties' and 'not ... subject to any appeal or to any other remedy except those provided for in this Convention'; Article 52 allows annulment on five narrow grounds, applied for within 120 days; Article 54 requires each Contracting State to enforce an award's pecuniary obligations 'as if it were a final judgment of a court in that State'; Article 55 leaves intact the law 'relating to immunity of that State or of any foreign State from execution'.

ICSID Arbitration Rules 14 and 53 (in force July 1, 2022): funder notice and security for costs weighing third-party funding.

Burford's guide: international arbitration and patent matters 'typically require a longer diligence process.'

Questions about arbitration funding

Is the claim commercial or investor-state, and under which rules?

What jurisdictional objections and time bars could end it?

Is adverse costs exposure insured, and could security be ordered?

How would an award be enforced, and against what assets?

What share of the fund is in arbitrations against states?

How investors apply the term

Investors usually apply this term by tying the definition back to the controlling documents and then asking which cash flows, rights, restrictions, or valuation assumptions it changes. A useful review looks at the term alongside fees, leverage, liquidity, reporting frequency, and manager discretion rather than treating it as a standalone concept.

The practical diligence test is simple: identify who benefits if the assumption is wrong, who has control when conditions change, and what evidence the investor receives after closing. Terms that cannot be reconciled to documents, cash movements, and monitoring data should be treated as marketing shorthand until proven otherwise.

Frequently asked questions

How does arbitration funding differ from court-case funding?: In five ways. Procedure is set by the parties' rules and the tribunal, not a court; proceedings are often confidential; loser-pays costs are common; there is usually no appeal, only limited annulment or set-aside; and awards are enforced through treaties such as the New York Convention or, for ICSID awards, the ICSID Convention. Each changes the timeline, the downside and the path to cash.
Must funding be disclosed in arbitration?: Increasingly, yes. ICSID's 2022 Arbitration Rule 14 requires a party to file a written notice of 'the name and address of any non-party from which the party, directly or indirectly, has received funds for the pursuit or defense of the proceeding' in return for remuneration dependent on the outcome, including who owns and controls a corporate funder, and lets the tribunal order further information about the funding agreement.
Can a funded claimant be ordered to post security?: Yes. Under ICSID Arbitration Rule 53, the tribunal may order security for costs after considering the party's ability and willingness to comply with an adverse costs decision, and 'shall consider all evidence ... including the existence of third-party funding.' If security is not provided, the tribunal may suspend the proceeding and, after 90 days, discontinue it.
Can an arbitration award be appealed?: Generally no. ICSID Convention Article 53 says an award is binding and 'not ... subject to any appeal or to any other remedy except those provided for in this Convention.' Annulment under Article 52 is limited to five grounds, such as a manifest excess of powers or a failure to state reasons, and must be sought within 120 days. Other awards can be set aside only on limited grounds in the courts of the seat.
How are awards enforced?: ICSID awards under Article 54 must be enforced in Contracting States 'as if' they were final local judgments, subject to Article 55's preservation of immunity from execution. Other awards are recognized under the New York Convention, which had 172 parties on UNCITRAL's status page on November 9, 2026. Enforcement against a state still runs into immunity from execution.
What can go wrong?: Jurisdiction, time bars and costs, among others. Silver Bull's claim against Mexico was dismissed on May 29, 2026 on jurisdiction and/or time-bar grounds after a full hearing, with about $998,000 of Mexico's costs awarded against it; its funder terminated the agreement. Its funding covered legal, tribunal and expert costs and defined corporate operating costs, up to $9.5 million.