| 1953 . | Morris W. Groner moves from New York to Columbus to establish his own accounting firm. His first associate is his wife Ruth and his first office is on East Main Street. |
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| 1957 | Jack Boyle (from Price Waterhouse) joins Morris in practice. |
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| 1966 | Ron Quillin (from Ernst & Ernst) joins Morris and Jack and the firm name evolves to Groner Boyle & Quillin. |
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| 1969 | Firm purchases building and moves offices to 957 East Broad. |
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| 1976 | GBQ produces first newsletter, brochure and radio ad. |
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| 1979 | Jack Boyle is named firm’s first official Managing Partner. |
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| 1980 | GBQ helps form Practice Management Associates, one of the first practice management associations in the country for CPA firms.
Morris Groner retires from the firm. |
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| 1981 | GBQ begins delivery of green bagels on St. Patrick’s Day. |
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| 1985 | Firm admits first female Partner, Kathy Nunamaker. |
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| 1986 | Firm joins the DFK Association. |
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| 1990 | Firm moves its office to 500 South Front Street in Columbus’ Brewery District. |
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| 1991 | Jack Boyle retires and Ron Quillin is named Managing Partner. |
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| 1995 | GBQ organizes and sponsors the first Goodwill Great Balls of Fire Golf Tournament. |
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| 1996 | Ron Quillin retires and Wade Kozich is named Managing Director.
GBQ becomes an independent member of the BDO Alliance USA. Firm acquires Columbus office of Cleveland firm, Meaden & Moore. |
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| 1998 | Firm adds 10 associates from the Columbus office of Cleveland firm, Ciuni & Panichi. |
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| 1999 | Firm name is officially changed from Groner Boyle & Quillin to GBQ Partners LLC. |
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| 2000 | Firm honored by Goodwill Columbus at the Extraordinary People Luncheon.
Mark LaPlace named Chair of the Board of the Ohio Society of CPAs. |
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| 2002 | Firm wins Business First’s Corporate Caring Award. |
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| 2003 | GBQ celebrates 50 years in business. |
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| 2004 | Firm hires first Director of Business Development. |
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| 2005 | GBQ Partners reorganizes forming GBQ Holdings and four subsidiaries.
GBQ Consulting officially organizes and launches, providing valuation and litigation support services. |
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| 2006 | GBQ surpasses 100 associates for the first time in firm’s history. |
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| 2007 | GBQ launches Redbank Advisors, a management consulting division.
GBQ acquires valuation arm of Goelzer Investment Banking of Indianapolis, IN, establishing the firm’s first office outside of Ohio. |
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| 2008 | GBQ Capital formed to provide merger & acquisition services.
Firm moves its offices from the 500 S. Front Street building to new space at 230 West Street in Columbus’ Arena District. GBQ ranks #1 on the Columbus Business First ‘Best Places to Work’ in central Ohio. |
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| 2010 | Darci Congrove is named Managing Director. |
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| 2011 | Firm acquires Condit and Associates LLC. |
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| 2013 | GBQ celebrates 60 years in business!
GBQ is named a Top Five Fastest-Growing firm in the nation by INSIDE Public Accounting. The firm was also recognized in 2011. GBQ is recognized by Columbus Business First as a Healthiest Employer. |
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| 2014 | GBQ was recognized by Columbus Business First with a Corporate Caring Award in the Human Services Category.
The firm is honored with a Torch Award from the Better Business Bureau® (BBB) Center for Character Ethics®. |
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| 2015 | GBQ was awarded the 2015 Independent Accounting Firm of the Year and Best in Sector: Financial Services award from Acquisition International magazine. |
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| 2016 | Firm acquires Ernst & Rabe in Cincinnati.
GBQ Announces Joint Venture with ViaVero. GBQ is named one of the Top 50 ‘Best of the Best’ Accounting Firms in the nation by INSIDE Public Accounting and received the award also in 2000, 2001, 2004, 2010-13 and 2016. |
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| 2017 | Tom Powers named Director of Assurance Services and takes over as the head of GBQ’s audit practice.
Firm expands in Cincinnati and moves office from Wooster Road to new space at 4030 Smith Road in Rookwood. GBQ’s valuation practice ranks #1 for the fifth consecutive year in INSIDE Public Accounting’s annual survey. Bob Biehl receives the Builders Exchange of Central Ohio President’s Award |
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| 2018 | Tim Schlotterer is named Director of Tax Services and takes over as the head of the firm’s tax department.
Bob Biehl awarded the Institute of Certified Construction Industry Professionals Vision and Leadership Award. GBQ launches Keep Financials, reveals next phase of outsourced accounting. |
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| 2019 | GBQ named a Construction Executive Top 50 Construction Accounting Firm.
Darci Congrove inducted into YWCA Women of Achievement academy. |
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| 2020 | Firm acquires Weber Clark in Toledo. |
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| 2021 | GBQ announces joint venture with The Siekmann Company. |