October 2026, Acquisition International | 15 This feeds into how Navesink measures success, which is the same way its clients do. Gontran explained: “We ask whether the expert made a complex fact pattern clear enough for a judge or jury to rule on, and whether the same firm calls us back for the next matter.” The focus is on word-of-mouth referrals and quality work rather than marketing, because reputation is what builds an expert practice over the long term. As the numerous unsolicited testimonials from its clients show, Navesink certainly achieves this. One client wrote: “We’ve turned to Navesink on multiple occasions, and their analyses were accurate, thorough, and withstood rigorous scrutiny by our colleagues and adversaries.” What makes this all the more impressive is that every single case the firm takes on is a unique and complex task, requiring senior-level (if not insider) knowledge. Building on this specialist knowledge, which spans hedge funds, investments, trading, and risk, Navesink has expanded beyond its original core of derivatives and complex securities over the last two years. This expansion includes adding expert capacity across products and asset classes, as well as the various support functions serving market participants, and now introducing expertise in the areas of enforcement and fraud. Strategically, its capabilities are growing in response to client requests and the wider market shifts it has identified. To this end, Gontran told us: “We are skating to where the puck is going, not where it is. We meet our clients’ needs today and will be ready to meet them tomorrow.” As new technologies are introduced that shape the future of this space, Navesink recognizes that it must strike a balance between using them to reach and serve clients better and preserving its founding principles. Its sister company, Pyrite Risk Experts, supports this through research and development and is progressively rolling out new technology in hedge fund analysis and due diligence. In a way, all of this adds up to a new chapter for Navesink, which also plans to develop its online presence after initially holding back because its experts were being poached. The introduction of the Market Insights Driving Complex Litigation newsletter is a great example of this, and Gontran has lost count of the number of compliments he has received from readers on the ideas it highlights. It is one more way the firm serves its clients and adapts to a changing market. Recognized in our 2026 Global Excellence Awards as the Best Financial Markets Expert Witness Firm 2026 – USA, Navesink International lives up to its claim of being the home of the best experts. Gontran hopes readers will contact him directly to query the team’s expertise, or maybe simply sign up for the firm’s newsletter. Contact: Gontran de Quillacq Company: Navesink International Email : GdeQuillacq@NavesinkInternational.com Web Address: navesinkinternational.com Specialist Expert Witness Services for Financial Markets While its practice area is intentionally narrow, covering only issues related to financial markets within the securities industry, Navesink International more than makes up for it in technical knowledge and capability. This is reflected in the fact that its founder and first group of experts are traders and risk managers, individuals whose careers are tested every day by the accuracy of their knowledge. Decades of navigating this challenge have made them deeply knowledgeable and cautious experts in their niches, qualities that their clients look to leverage. “Every one of Navesink’s experts is an industry practitioner, duly tested by their career, most often still practicing, and recommended by their peers. No exceptions.” Cooperating with brand-name legal consulting firms that reach out to it when they need advanced or highly niche expertise, Navesink works on technical and high-stakes cases and is sometimes approached by both sides of the same dispute. If the team ever feels it lacks the expertise needed for a particular case and does not know someone who has it, it will not hesitate to turn the case down, choosing instead to preserve the quality of the service delivered to its clients. Navesink International is the premier expert witness firm for financial markets. Based in Fair Haven, NJ, its team supports prominent law firms, legal consulting firms, and attorneys across the US in analyzing, explaining, and winning complex cases, providing expert witnesses of the highest quality with outstanding technical knowledge. As Navesink is once again named Best Financial Markets Expert Witness Firm this year, Gontran de Quillacq, managing partner and one of its expert witnesses, caught up with us to share more. Navesink International
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