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Our Core Values

Management Team

Thought leaders in business valuation

Shelia Darby, MBA, CVA,
MAFF, ECA

Managing Director, BizWorth

Shelia Darby is the Managing Director of BizWorth, where she leads the valuation department and specializes in business valuation and litigation support. With a career spanning over 25 years, she has deep expertise in valuation engagements, including complex litigation cases. She holds a BBA in Finance from Baylor University and an MBA from Rice University’s Jones Graduate School of Business. A CVA, MAFF, and ECA, Shelia is a member of NACVA and the Institute of Equipment Valuation and previously served on NACVA’s Ethics Oversight Board.

Kip Holderness, Ph.D., CPA, CMA, CFE, CVA

Valuation Expert; Litigation Support

Dr. Kip Holderness is a Valuation Expert with BizWorth, contributing to certified valuations and litigation support. He is a Professor of Accounting at West Virginia University and Program Coordinator for the Master of Forensic and Fraud Examination program. Kip holds a Ph.D. in Accountancy from Bentley University and is a CPA, CMA, CFE, and CVA. He also serves as Director of Research for the Association of Certified Fraud Examiners Research Institute and has been qualified as an expert witness in litigation matters.

Joseph Wilson, CVA, ECA

Business Valuation Manager

Joseph is a Business Valuation Manager at BizWorth, where he leads the firm’s SBA Valuation Team and oversees engagements across a broad range of industries. He holds a B.B.A. in Energy Management (2017) and an M.S. in Finance (2021) from the University of Oklahoma. Joseph serves as Treasurer of the TABB Houston Chapter and holds certifications as a Certified Valuation Analyst (CVA) and Equipment Certified Appraiser (ECA).

Shelia Darby, MBA, CVA, MAFF, ECA
Managing Director
Shelia Darby is the Managing Director of BizWorth, where she leads the valuation department and specializes in business valuation and litigation support. With a career spanning over 25 years, she has deep expertise in valuation engagements, including complex litigation cases. She holds a BBA in Finance from Baylor University and an MBA from Rice University’s Jones Graduate School of Business. A CVA, MAFF, and ECA, Shelia is a member of NACVA and the Institute of Equipment Valuation and previously served on NACVA’s Ethics Oversight Board.
Joseph Wilson, CVA, ECA
Business Valuation Manager
Joseph is a Business Valuation Manager at BizWorth, where he leads the firm’s SBA Valuation Team and oversees engagements across a broad range of industries. He holds a B.B.A. in Energy Management (2017) and an M.S. in Finance (2021) from the University of Oklahoma. Joseph serves as Treasurer of the TABB Houston Chapter and holds certifications as a Certified Valuation Analyst (CVA) and Equipment Certified Appraiser (ECA).
Shelia Darby, MBA, CVA, MAFF, ECA
Managing Director

Shelia Darby is the Managing Director of BizWorth, where she leads the valuation department and specializes in business valuation and litigation support. With a career spanning over 25 years, she has deep expertise in valuation engagements, including complex litigation cases. She holds a BBA in Finance from Baylor University and an MBA from Rice University’s Jones Graduate School of Business. A CVA, MAFF, and ECA, Shelia is a member of NACVA and the Institute of Equipment Valuation and previously served on NACVA’s Ethics Oversight Board.

Joseph Wilson, CVA, ECA
Business Valuation Manager

Joseph is a Business Valuation Manager at BizWorth, where he leads the firm’s SBA Valuation Team and oversees engagements across a broad range of industries. He holds a B.B.A. in Energy Management (2017) and an M.S. in Finance (2021) from the University of Oklahoma. Joseph serves as Treasurer of the TABB Houston Chapter and holds certifications as a Certified Valuation Analyst (CVA) and Equipment Certified Appraiser (ECA).

Kip Holderness, Ph.D., CPA, CMA, CFE, CVA
Valuation Expert; Litigation Support

Dr. Kip Holderness is a Valuation Expert with BizWorth, contributing to certified valuations and litigation support. He is a Professor of Accounting at West Virginia University and Program Coordinator for the Master of Forensic and Fraud Examination program. Kip holds a Ph.D. in Accountancy from Bentley University and is a CPA, CMA, CFE, and CVA. He also serves as Director of Research for the Association of Certified Fraud Examiners Research Institute and has been qualified as an expert witness in litigation matters.

Victoria Duron, CPA, CVA
Business Valuation Manager

Victoria is a Business Valuation Manager at BizWorth, focusing on valuation production and compliance support. She has experience working with a Big 4 public accounting firm in Forensic & Integrity Services, where she performed forensic accounting analyses, supported expert witness engagements, and managed compliance across federal grant programs. Victoria holds a Master in Professional Accounting and a BBA from The University of Texas at Austin. She is a licensed CPA in Texas, a Certified Valuation Analyst (CVA) through NACVA, and a member of the AICPA and the Texas Society of CPAs, Houston Chapter.

Sydney Gray, CVA
Business Appraiser

Sydney Gray is a Financial Analyst at BizWorth, contributing to the valuation production team. She holds a Bachelor of Science in Business Administration from Liberty University and is pursuing a Master of Business Administration with a concentration in Finance. Sydney is currently pursuing the Certified Valuation Analyst (CVA) designation.

Dan Darby, MSc
Managing Director

Dan is a Managing Director at BizWorth, focusing on technology and partnership development to grow the company’s reach and advisor network. He holds a BBA from Baylor University and a Master of Science in Leadership and Organizational Change from Northwestern University. Dan brings a strong background in strategic marketing, technology adoption and business development.

Madeleine Fontein, PMP
Business Operations Coordinator

Madeleine Fontein is the Business Operations Coordinator at BizWorth, where she supports production management and streamlines business operations to ensure efficiency across teams. She holds a Bachelor of Commerce from Dalhousie University and is a Certified Project Management Professional (PMP). With a strong foundation in operational strategy and process improvement, Madeleine plays a key role in delivering high-quality valuation services.

Weston Tschirhart, ECA
Certified Machinery & Equipment Appraiser

Mr. Tschirhart is a certified machinery and equipment appraiser at BizWorth. Specializing in over 10 years of agricultural, industrial and restaurant machinery and equipment, Mr. Tschirhart’s expertise ensures accurate and reliable assessments for clients across various industries and locations throughout the country. A proud graduate of the University of Texas at San Antonio (UTSA), Weston's analytical prowess and commitment to excellence make him a valuable asset in providing comprehensive and accurate machinery and equipment appraisals to clients from coast to coast.

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Blog

Resources

How to Sell a Plumbing Business: Understand Your True Market Value

Selling your plumbing company? Learn how to sell a plumbing business the right way with a certified valuation. BizWorth's appraisers interpret financial performance, not opinions, to reveal true fair market value. Understand how plumbing business valuations help you attract serious buyers, justify your asking price, and close faster.

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Resources

Partner Buyout? How a Certified Valuation Protects Everyone

Considering a partner buyout? A certified valuation ensures fairness for every owner. BizWorth’s certified appraisers interpret financial data, not opinions to determine true market value for ownership transfer valuation and minority shareholder value. Learn how our process protects both sides and prevents costly disputes.

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Why a Certified Valuation is Essential for a Business Divorce

A business divorce can be complicated, but a certified valuation makes it fair. BizWorth’s certified appraisers interpret financial data, not opinions to deliver defensible business valuations that withstand legal scrutiny. Learn how our process brings clarity and confidence to partner separations and ownership disputes.

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Insurance Agency Valuation: 5 Factors That Drive Agency Worth

Thinking about selling or restructuring your firm? A certified insurance agency valuation helps you understand your agency’s true market value. Discover how BizWorth’s certified appraisers interpret financial performance, not assumptions to identify the five key factors that influence worth and help owners plan confidently for the future.

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News & Press Releases

Shelia Darby Named President of NACVA – Houston Chapter

BizWorth is pleased to announce that managing director Shelia Darby, MBA, CVA, MAFF, is the newly appointed President of the National Association of Certified Valuators

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NACVA Names Shelia Darby to its Ethics Oversight Board

The National Association of Certified Valuators and Analysts® (NACVA®), the organization that has trained over 35,000 CPAs and other valuation and consulting professionals in the...

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