Sidney P Blum, CPA, CFE, CFF, CPEA Expert Witness
Curriculum Vitae


Contact this Expert Witness

Specialties & Experience of this Expert Witness

General Specialties:

Business Damages and Intellectual Property

Keywords/Search Terms:

Damage, Economic Damage, Accounting, Intellectual Property, DMCA, Patent, Copyright, Trademark, Royalty Audit, Fraud, False Advertising, Valuation, Breach of Contract, Wrongful Termination, Employment Law, Brands, Complex Business Litigation, Personal Injury, Lost Profits, Unjust Enrichment, Music


Bachelor of Science in Business Administration-Accounting, CSUN; Accounting Theory and Practice, CSUN

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

ECONOMIC DAMAGES, IP, ROYALTY AUDIT, BREACH OF CONTRACT EXPERT. "the Expert's Expert". Leading testifying forensic expert on financial damages in litigations for intellectual property, general damages, breach of contract, misappropriation of trade secrets, unfair competition, licensing disputes, reasonable royalty rates, lost profits, fraud, & royalty auditor competence. His 30+ years experiences includes corporate and as an in-charge KPMG Partner. He was the Chief Audit Officer of Beats (now Apple). Author of two books on contract financial language and auditing (Oxford University Press & LexisNexis). His well-written grounded reports are cited as best examples by judges. Economic Damages Mr. Blum has been a damages expert on more than 100 federal and state cases. Cases include complex litigation, intellectual property (patents, copyrights, trademarks, false advertising, royalty auditor competence, fraud, DMCA), wrongful termination, construction defect, internet, marketing, unfair competition, oil & gas pipeline, class action, personal injury, breach of contract. Mr. Blum has deep knowledge of Georgia-Pacific factors for reasonable royalties. Expert on a $66 million DMCA judgment, $300 million & $25 million settlements, and the two largest music copyright cases. One-third of cases are IP and damages are almost always accepted over other experts. Royalty Audits Mr. Blum led the royalty audit practice and wrote the global methodologies for Big 4 firms Ernst & Young and KPMG. As a leading authority on domestic and international royalty auditing, he has testified for some of the world's most famous brands and individuals. Fraud & Forensics Mr. Blum was the 2012 Certified Fraud Examiner of the Year and board member of the 80,000 member association. He has lead 1,500 forensic accounting investigations. Industry Experience Wide range of industry experience such as toys, film, music, consumer products, energy, manufacturing, medical devices, apparel..