Experts in complex valuation & litigation support

From complex commercial and divorce litigation to intensive shareholder disputes, BizWorth provides over 40 years of expertise that clients trust.

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Out of complexity, we provide certainty.

Proven Credibility

Over 40 years of applied financial knowledge & expertise

Unbiased accuracy

Defensible, data-driven conclusions based on proven methods

High efficiency

Experienced team of experts who require less time to prepare

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Complex financial transactions made easy

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Complex Business Valuations

BizWorth’s most experienced appraisers and experts help you quickly and easily understand the value of complex businesses in partner disputes, gift & estate planning, and divorce proceedings.

Economic Damages Calculations

We use a data-driven approach to determine an objective value of lost profits in commercial litigation.

Expert Witness Services

We integrate the facts across a case and present them clearly and compellingly to the trier of fact in an unbiased fashion.

Litigation Support Services

We help clients and their attorneys manage, document and compile the voluminous information prevalent in today’s litigation.


Types of cases we support

Contact our certified experts to learn more about how we can help with your complex valuation and litigation case.

Family & Commercial Law

We provide expert witness testimony, litigation support, lost profit calculation and complex business valuation. Our understanding of divorce and commercial-related valuation issues places BizWorth ahead of other firms.

Gift & Estate Planning

Our expertise in business valuation enables attorneys to develop a robust gift and estate plan for their clients.

Lost Profits

We use a data-driven approach to determine an objective value of lost profits in commercial litigation.

Advisory Leadership Team

Experts in complex valuation and litigation

Shelia Darby, Managing Director of BizWorth
Shelia Darby

Managing Director, Bizworth
Ms. Darby is a founding member of BizWorth and has over 20 years of valuation and advisory experience, having started her career in valuation working for Fortune 50 companies in North America and Europe. She served on the Ethics & Oversight Board of The National Association of Certified Valuators and Analysts (NACVA) and was also the President of NACVA Houston State Chapter. Her certifications include Certified Valuation Analyst (CVA) and Master Analyst in Financial Forensics (MAFF). She holds a bachelor’s degree in Finance from Baylor University and an MBA from Rice University.
Jon Donnel, Managing Director of Advisory at BizWorth
Jon Donnel

Managing Director, Advisory
Mr. Donnel is a finance professional with over 20 years experience in business valuation, financial planning and analysis, investment appraisal and financial modeling. He started his career providing accounting services for litigation consulting, business valuation, and bankruptcy proceedings then advanced his career to hold senior level director positions for Fortune 50 companies and investment banks. Mr. Donnel now leads the Valuation Advisory Practice at BizWorth focused on complex valuations, loss profit calculations, partner buy-outs and disputes. His certifications include Certified Valuation Analyst (CVA). He holds a bachelor’s degree in Economics and an MBA from Rice University.

When you need to know what a business is worth, certified matters.

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