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Areas of Expertise

  • Due Diligence
  • Solvency Opinions
  • Purchase Price Allocation
  • Data Breaches
  • Fairness Opinions
  • Valuation
  • Expert Witness
  • Forensic Accounting
  • Intellectual Property
  • Damages & Lost Profit Analysis


  • Energy
  • Healthcare
  • Manufacturing
  • Credit Card
  • Telecom
  • Technology

Prominent Cases

  • Financial Advisor to Trustee – WorldCom Bankruptcy
  • Damages Expert – Home Depot Data Breach
  • Expert Witness – BellSouth Shareholder Dispute
  • Solvency and Valuation Expert – Hellas Telecommunications


  • 3 Years with GlassRatner
  • 35 Years of Relevant Experience


  • BBA Management, University of Notre Dame
  • MBA Corporate Finance, DePaul University

Professional Designations

  • CPA
  • ABV
  • ASA
  • CFF

Daniel Korczyk is a CPA with more than 25 years experience in Public Accounting, Business and Intellectual Property Asset Valuations, Financial Due Diligence Services, Dispute Resolution and Investigations, Regulatory Consulting, Fairness and Solvency Opinions, and Corporate Finance.  In addition, Daniel spent more than seven years in various senior leadership roles at a Fortune 100 company, including Director of Mergers and Acquisitions, and several CFO positions.  He has provided expert testimony and damages analysis and consulting related to matters of fraud, material misrepresentation, intellectual property damages, shareholder dispute, property tax appeals, contract disputes, professional malpractice and breach of fiduciary duty.

Mr. Korczyk has specialized in representing clients and consulting to Corporate Boards in connection with significant M&A and Regulatory transactions, frequently with billions of dollars of investment at stake.  He is particularly known for managing complex projects requiring extensive financial analysis. Daniel’s clients typically include law firms and corporations, both public and private.  His client base is global, including businesses in North America, Europe and Asia.  Dan resided in Brussels, Belgium for a period of approximately two years. 

Industries served by Mr. Korczyk have included: healthcare; telecommunications and cable; media and publishing; technology; transportation; aerospace; franchising; retail; wholesale and distribution; utilities; services providers; and manufacturing.

Prior to joining GlassRatner, Mr. Korczyk held senior leadership positions at Deloitte, E&Y, Navigant Consulting, and American Appraisal.  An experienced public speaker, Mr. Korczyk has also authored articles on disputes and industry-focused technical matters.  In addition to serving in disputes, forensics, and regulatory consulting roles, Mr. Korczyk has significant experience in acquisitions and divestitures where he has conducted financial due diligence, fairness opinions, tax guidance, and business, debt, contingency, and asset valuations on behalf of prospective buyers and sellers.  Dan’s consulting experience also includes audit review roles, significant shareholder valuation work for large estates, and numerous technology valuations, including such assets as the Jarvik artificial heart. 

Daniel’s primary technology focus is in the field of communications networking and services.  In addition to the roles listed above, as related to the telecommunications industry, Mr. Korczyk has consulted extensively on competition, pricing, billing, capital spending, and subscriber management topics.

Representative assignments on which Mr. Korczyk worked and held leadership responsibilities include:


Over his 25 year consulting career, Mr. Korczyk has led numerous multi-billion dollar valuations of companies in connection with some of the largest business transactions in the U.S. and around the world.  He is known for and frequently sought out to undertake complex assignments calling for sophisticated financial analysis and unique skills.  Examples of consulting projects include:

  • Performed regulatory services on behalf of a large triple-play legacy cable operator (MSO), resulting in risk mitigation, improvements to cost recovery processes, and materially enhanced profit margins.
  • Consulted in connection with, and led the start-up of, a broadband business case development effort related to application for stimulus funding as appropriated under the American Reinvestment and Recovery Act, administered by the Department of Agriculture’s Rural Utilities Service.
  • Coordinated the process for an ISP to transform its business from a dial-up service provider to a major broadband operator; including capital spending and management of a paced rollout so as to assure desired financial results.
  • Provided strategic alternatives and financial planning services to family members owning nine nursing homes.

Due Diligence

  • Led financial due diligence, risk assessment and strategy consulting in connection with the simultaneous merging of five independent rural wireless operators, along with a fiber optics company and a telecommunications construction consulting business.
  • Conducted financial due diligence services in connection with a combination acquisition and recapitalization of a cross-border fiber optics network service provider.
  • Performed Quality of Earnings and financial due diligence for a lender in connection with its client’s request for expansion capital
    under a plan calling for a change in strategic focus.

Litigation Support / Forensic Accounting

  • On behalf of the SEC, led 50 professionals in the forensic discovery and restatement of WorldCom financial statements over 10 years.  Reported directly to former SEC Chairman, Richard Breeden.  Translated findings into revaluations of WorldCom assets and businesses, resulting in $80 Billion write down due to faulty accounting and fraud. 
  • Testified on behalf of a telecommunications service provider in connection with claims of fraud, material misrepresentation and breach of contract.
  • Provided damages consulting services to a multi-billion dollar manufacturing company related to infringement of a portion of their IP portfolio.
  • Provided litigation support in connection with damages computation for one of the U.S.’s largest consumer data breaches.
  • Provided solvency opinion and litigation support in connection with a claimed fraudulent conveyance by a wireless operator.
  • Testified related to a lender dispute in a case connected to a Continuing Care Retirement Community.

Fairness & Solvency Opinions

  • Prepared solvency opinion in connection with special dividends extended to shareholders of a large telecommunications service provider.
  • Conducted solvency opinion analysis and reporting on behalf of an insurance company.
  • Prepared consulting services, followed by a fairness opinion in connection with a change in strategic direction of a triple-play communications provider.
  • Provided solvency opinion and litigation support in connection with a claimed fraudulent conveyance by a wireless operator.


  • Performed valuation services in connection with a multi-billion dollar acquisition by a retail “Big Box” company.
  • Performed property tax valuation services for a Fortune 50 corporation, leading to favorable reassessment.
  • Conducted IP valuation services for state tax purposes on behalf of a national LTL trucking company.
  • Performed equity valuation for estate and gift tax purposes for one of Atlanta’s wealthiest individuals.

Daniel is a Certified Public Accountant (CPA) and is Accredited in Business Valuation through the AICPA (ABV).  In addition, he holds an ASA (Accredited Senior Appraiser, Business Valuations Section of the American Society of Appraisers) and is certified in financial forensics through the AICPA and holds the CFF designation.

His education includes an MBA in Finance from DePaul University in Chicago, and a BBA in Management from the University of Notre Dame, as well as a Certification in E-Commerce though the Georgia Institute of Technology.  Dan is the past President of the St. Louis Chapter of the American Society of Appraisers.

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