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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.

Jon Donnel, Managing Director of Advisory at BizWorth

Jon Donnel

Managing Director, Valuation Advisory

Leads the Valuation Advisory Practice focused on complex valuations, loss profit calculations, partner buy-outs and disputes. Jon has held senior-level director positions for Fortune 50 companies and investment banks. He is a Certified Valuation Analyst (CVA) and holds a bachelor’s degree in economics and an MBA from Rice University.

Robert Brand

Director, Business Valuation

Leads BizWorth’s informational and certified business valuation practice. Robert is an officer of NACVA's Houston State Chapter and serves as the treasurer of Houston's Texas Association of Business Brokers. He is a Certified Valuation Analyst (CVA). Robert is a former Combat Engineer serving in Iraq for the U.S. Army and holds a bachelor's degree in finance from University of Houston.

Renee Schreier

Director of Operations

Manages BizWorth's operations and strategic planning initiatives, report production and customer applications. Renee serves as the secretary of Houston's Texas Association of Business Brokers and was a former operations administrator with Accenture. She holds a bachelor’s degree from Texas Lutheran University.

Joseph (Joey) Wilson

Senior Market Analyst

Leads BizWorth's industry and market research initiatives. Joey was a former production analyst with Scotiabank. He holds a BBA and Master of Finance degrees from the University of Oklahoma.

Dan Darby

Director of Pitch Books & CIMs

Leads Pitch Book and CIM report production. Former management consultant with several Big 5 and Fortune 50 companies. Holds a bachelor’s degree in Business Administration from Baylor University and a Master of Science in Organizational Leadership from Northwestern University.

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).

Jack Nielsen, CVA
Certified Business Appraiser

Jack is a Certified Business Appraiser, where he plays a key role in delivering Certified and Informational valuations. A graduate of Texas A&M University with a B.S. in Economics, Jack is a credentialed CVA through the National Association of Certified Valuators and Analysts. In addition to valuation work, he leads the creation of Confidential Information Memorandums and Quick Pitches.

Victoria Duron, CPA
Business Valuation Manager

Victoria is a Business Valuation Manager at BizWorth, focusing on valuation production and compliance support. She holds a Master in Professional Accounting and a BBA from The University of Texas at Austin. Victoria is a licensed CPA in Texas and a member of the American Institute of Certified Public Accountants and the Texas Society of CPAs, Houston Chapter. She is currently pursuing her CVA designation.

Sydney Gray
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.

Kristin Jensen
Partner Operations Manager

Kristin Jensen is the Partner Operations Manager at BizWorth, where she serves as the primary liaison for partner engagement and support. She oversees onboarding, communications, and process optimization to ensure a seamless experience for BizWorth’s network of valuation partners. Kristin holds a Bachelor’s Degree from Colorado State University.

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Blog

Resources

How to Prepare for an Annual Business Appraisal

Discover how an annual business appraisal strengthens your bids for federal, state, and local contracts by proving financial stability.

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Resources

Market Approach: The Best Kept Secret in Business Valuation!

Explore the Market Approach to business valuation. Learn how to value your company using real transaction data and discover when this method is most effective.

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Resources

Discover the Key Methods to Business Valuation – Start Here!

Discover key methods to value your business with the Asset, Income, and Market approaches. Learn how to determine your company's true worth and get started today.

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Resources

How to Maximize a Small Business Worth with These 3 Appraisal Methods!

Learn how to maximize your small business's worth with three key appraisal methods: the Income, Market, and Asset approaches. Uncover your business's true value.

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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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