TPLF: When Your Plaintiff Has a Silent Partner With $16 Billion

Third-party litigation funding — TPLF — is the practice of outside investors providing non-recourse financing to plaintiffs or law firms in exchange for a portion of any eventual award or settlement. It is legal in all U.S. jurisdictions. It is almost entirely non-disclosed. And it has grown from a niche product used in a handful of commercial disputes to a $16.1 billion industry that now touches 82% of U.S. law firms and fundamentally alters the economics of civil litigation for any case where it is present.

When a hedge fund, private equity firm, or sovereign wealth vehicle is quietly backing a plaintiff against one of the Alliance's members, the defense faces a fundamentally different adversary than it would in an unfunded case. The plaintiff has no financial pressure to settle. Their attorney has resources to run the case aggressively for years. Expert witnesses, jury consultants, sophisticated mock trials, and prolonged discovery are all within reach — regardless of the plaintiff's own financial capacity. And the funder, who has no presence in the courtroom, has a financial interest in maximizing the outcome that may actually exceed the plaintiff attorney's own stake in the result.

Allen Kersh of Zurich North America, in his 2024 Insurance Journal interview, identified TPLF as one of the four primary buckets driving nuclear verdicts in Zurich's research — noting specifically that "if you're a defendant, you're not going to know who has a financial interest in the case." That information asymmetry is not accidental. It is structural. And it is one of the most consequential unresolved issues in American civil litigation.

Westfleet Advisors, which produces the most comprehensive independent analysis of the U.S. commercial TPLF market, documented a market that has grown from essentially nothing in 2012 to $16.1 billion in AUM managed by 42 active funders as of 2024. The growth trajectory is not a straight line — there was some contraction in new commitments in 2023-2024 as interest rates rose and some funders reassessed portfolio returns — but the underlying structural growth of the industry remains intact.

In the first half of 2025, Westfleet documented a 23% rebound in new TPLF commitments, reaching $2.3 billion — suggesting that the industry's brief growth pause was precisely that: a pause, not a reversal. For context: the entire U.S. commercial TPLF market was essentially non-existent when the current wave of nuclear verdict acceleration began in 2019. The two phenomena grew together, and they are causally related.

The TPLF industry is not monolithic. It comprises multiple categories of investors with different motivations, investment horizons, and strategic approaches. Understanding who the funders are — and what they want — is essential for understanding how TPLF-backed litigation behaves differently from unfunded litigation.

The most consequential effect of TPLF on Alliance members is not the funding itself — it is what the funding does to the settlement dynamic. In ordinary litigation, the plaintiff faces real financial pressure. Lawsuits take years. Living expenses continue. Medical bills accumulate. The financial cost of waiting for an uncertain trial outcome creates a powerful incentive to accept a reasonable settlement and move on.

TPLF eliminates that pressure entirely. When a funder has provided non-recourse capital to cover the plaintiff's litigation expenses and living costs, the plaintiff can wait indefinitely for maximum value. The Travelers Institute's 2024 symposium documented specifically how plaintiff attorneys — backed by TPLF — have learned "when not to settle" — the precise mirror image of the risk aversion exploitation documented in Briefing #4.

The U.S. Chamber Institute for Legal Reform has documented a dimension of TPLF that extends beyond the civil justice system into national security: the presence of foreign government-linked capital among TPLF funders. In several documented cases, foreign-sourced TPLF has been used to fund litigation against U.S. companies in ways that raise questions about both sanctions compliance and strategic targeting of American industries.

For Alliance members operating hotels, gaming facilities, and commercial real estate — industries that attract foreign investment and international guests — this dimension of TPLF is particularly relevant. The same funding infrastructure that foreign sovereign wealth funds use to fund commercial litigation can be, and in documented cases has been, used to target specific U.S. industries for litigation campaigns that serve strategic as well as financial objectives.

Allen Kersh noted in his 2024 Insurance Journal interview that when Zurich's social inflation task force began working on TPLF four years ago, only two or three jurisdictions required any form of TPLF disclosure. By 2024, that number had grown to over 15. In 2025 alone, seven states enacted new TPLF disclosure or restriction laws — the most active year of state-level TPLF legislation on record.

This momentum reflects a growing bipartisan consensus that the invisibility of TPLF in civil litigation is a structural problem that disclosure requirements can meaningfully address — without banning TPLF entirely, which faces constitutional challenges.

Briefing #7 in the System Failure Series shifts from the external forces working against members to the internal defense failures that allow those forces to succeed — beginning with the documented tactics that defense attorneys should be using in every high-exposure trial, and almost never are. Understanding what your defense team should be doing is the foundation for advocating that they actually do it.