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  • About Gnarus

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    Expertise Matters.

    Gnarus provides analytic and expert services to clients facing complex challenges arising from uncertainty, potential litigation, or disputes. Our experts and consultants solve business problems, identify, manage and mitigate risks and support litigation efforts through in-depth research, analysis, regulatory expertise and quantitative modeling.

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    Gnarus Advisors was named among the "Seven Small Jewels" of 2011 by Consulting Magazine.

  • Our Expertise

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    It's Vast

    The experts and consultants at Gnarus Advisors combine advanced financial modeling with scientific, engineering, technical, and regulatory expertise to provide clients with the resources and support they need across a wide spectrum of industries and disciplines.

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    The Gnarus team is comprised of experienced individuals who are recognized as leaders in their fields and bring years of academic, governmental and corporate experience to every client we advise. Our experts bring uncommon insight to expert testimony and advisory engagements.

  • Meet The Team

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    John Simon(1/5)

    DSC_1080f Director

    Mr. Simon is an environmental consultant with over 26 years of broad-based experience in assessing, managing, and mitigating issues associated with hazardous sites.   As a...


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    Gnarus Advisors has advanced capabilities in financial modeling, complex statistical analysis, environmental regulation and enforcement, and environmental science and engineering. Our practice groups include: Environment & Natural Resources, Product Liability & Mass Torts, Economic Analysis and Association Management.

  • Latest News

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    Gnarus Advisors Launches the Inaugural Issue of Periodic Newsletter, “Gnarus Insights”(1/7)

    Gnarus Advisors Launches the Inaugural Issue of Periodic Newsletter, “Gnarus Insights” Gnarus Insights is our periodic newsletter focusing on trends and best practices in our...


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    CLIENT ALERT: The EPA recently released updated toxicity information for two chlorinated solvents prevalent at contaminated sites, tetrachloroethylene and trichloroethylene. These solvents are frequently the driver for site cleanups at a variety of properties, including dry cleaners, and industrial sites.

Valuing Employee Stock OptionsValuing Employee Stock Options Gnarus Advisors LLC expert Ron Rudkin was retained by a worldwide interactive gaming company to determine the fair...[Read More]
Insurance Recovery Title HPInsurance Recovery Title HP A major division of a large municipality sought cost recovery under an existing pollution legal liability (PLL) policy. ...[Read More]
Environmental Liability 8080Environmental Liability 8080 Experts at Gnarus Advisors LLC (Gnarus) were retained by National Grid to estimate its legacy environmental liabilities associated...[Read More]
Nation Contingency 8080Nation Contingency 8080 For the past 25 years, consultants at Gnarus Advisors LLC (Gnarus) have provided expert analysis and testimony for...[Read More]
Remediation Mgt 8080Remediation Mgt 8080 Gnarus Advisors LLC is frequently retained by businesses that wish to manage the remediation of contaminated sites.  Our...[Read More]
Statistical Analysis 8080Statistical Analysis 8080 Gnarus Advisors LLC (Gnarus) was retained by a large US insurer to assist in litigation to recover claims...[Read More]