Cost Segregation and Property Tax GVG Firm Profile

Decades of Experience

Griffin Valuation Group has the vast experience and knowledge you need to lower your tax expenses and increase cash flow. Put that money back in the company's pockets where it belongs!

Griffin Valuation Group's consultants came out of the Big-4 accounting firms and have worked in nearly every industry including a large share of the Fortune 500 over the past 25 years. We have worked in every state in the U.S. The following are industries we specialize in:

Our Team

Griffin Valuation Group, Ltd. is comprised of tax accounting, valuation and cost engineering experts dedicated to construction cost segregation, and the commercial and industrial property tax and valuation fields.   We are based just outside of Chicago and provide tax savings to corporations and business owners nationwide. The specialty composite of professional skills we have enables our clients to utilize us for all of their depreciation and property tax-related needs across the United States. 

With over 30 years of experience within the engineering and accounting firm environments (over half those years in the Big-4), Griffin Valuation Group, Ltd. has the knowledge and qualifications required for today’s complex tax world.


Below is a bio of our founder:

Barbara Wiggins is the Founder and President of Griffin Valuation Group, a company she formed in order to provide businesses with a more cost effective means to tax reductions. She has over 30 years of cost segregation, property valuation, engineering and construction experience.

Barb's extensive background includes 14 years at PricewaterhouseCoopers in Chicago where she co-developed, managed and trained the cost segregation and property tax practice dating back to 1984.

Barb's cost segregation studies and property tax analyses resulted in significant savings for Fortune 500 clients throughout the United States. Barb has performed cost segregation studies and achieved substantial property tax reductions for very large corporations including: national chain restaurants and retail stores, several of the nation's largest financial institutions, public utilities, hotels and resorts, casinos, refineries, pharmaceuticals, light and heavy manufacturing, food processing, and many other ventures.

In addition to her cost segregation expertise, Barb has valued both real and personal property throughout the U.S. and has won substantial property tax reductions through negotiations and testimony in state and local hearings as an expert witness. Alone, and in conjunction with major law firms, she has been instrumental in achieving millions of dollars in tax reductions for numerous Fortune 500 clients.

Prior to her tenure at PricewaterhouseCoopers, Barb was an Engineer at Sargent & Lundy Engineers in Chicago, specializing in cost engineering, design and construction project scheduling for the international power industry. Her work on both new and retrofit electric utility projects included ventures in Turkey, Indonesia, Vietnam, and China as well as throughout the United States. Preceding Sargent & Lundy, Barb was an Engineer at Envirodyne Engineers in Chicago where she was a construction manager specializing in cost engineering and cost control for the expansions of both the DuPage Airport and O’Hare International Airport. Also at Envirodyne, her expertise in cost engineering was utilized during the renovation of the City of Chicago’s historic elevated rail track system.

Barb is a graduate of Purdue University with both AAS and BS degrees in Construction. She has continued her education throughout the years at such organizations as the American Society of Appraisers, the International Association of Assessing Officers and the Institute for Professionals in Taxation.

Barb completed a one year appointment as a State Administrative Law Judge to hear property tax cases and was on the Property Tax Appeals Board in her home state for many years.


The cost engineering, valuation and tax accounting expertise of our team makes Griffin Valuation Group one of the most qualified cost segregation and property tax firms in the United States!