GBQ Partners
Professional services
UnclaimedGBQ Partners is a Columbus, Ohio-based accounting and consulting firm serving privately held businesses and other organizations.
Last updated August 25, 2026
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Overview
GBQ Partners, LLC is a professional services firm based in Columbus, Ohio. Established in 1953 by Morris W. Groner, the firm developed from a local accounting practice into an independent accounting and consulting organization serving middle-market businesses and other institutions. Its historical name, Groner, Boyle & Quillin, reflected the later partnership of Groner with Jack Boyle and Ron Quillin; the business became commonly known as GBQ before formally adopting the name GBQ Partners LLC in 1999. The firm’s development has combined organic growth with selected acquisitions and geographic expansion. In 1990, the practice moved to the Brewery District near Columbus’s German Village, marking a notable stage in its local institutional development. In 1996, Ron Quillin, the last of the original named partners, retired. Wade Kozich then assumed the managing director role and led the firm for 14 years during a period described by the company’s historical account as one of significant growth and expansion. That same year, GBQ became an independent member of the BDO Seidman Alliance, connecting the Ohio firm to a broader accounting and consulting network while retaining its independent ownership and identity. In 2008, GBQ relocated its Columbus office to 230 West Street in the Arena District and expanded beyond its home market by purchasing the business valuation division of Goelzer Investment Management in Indianapolis, Indiana. The transaction supported a second office and strengthened GBQ’s valuation capabilities. The firm has been described as the largest Columbus-owned accounting firm and the largest independent accounting and consulting firm in Central Ohio, with more than 100 associates and 13 partners according to the referenced company history. GBQ’s client base is concentrated in closely held businesses and the Central Ohio middle market, although the firm serves organizations ranging from start-ups to companies reporting more than $1 billion in revenue. Its industry coverage includes manufacturing, distribution, construction, real estate, service businesses, nonprofit organizations, physician practices, and healthcare companies. The firm’s services extend beyond conventional audit and tax work to include business valuation, forensic accounting, expert witness support, bankruptcy and turnaround consulting, state and local tax advisory, profit enhancement, management consulting, and information-technology risk management. The firm’s positioning is that of an independent, relationship-oriented accounting and advisory practice with local ownership, broad technical capabilities, and access to international resources through the BDO Seidman Alliance. Its principal competitive distinction is the combination of a long-established Central Ohio presence, middle-market specialization, and multidisciplinary consulting services. No separate public-company listing, ticker, or parent corporation is identified in the available reference material.
History
GBQ Partners traces its origins to 1953, when Morris W. Groner founded an accounting firm in Columbus, Ohio. The practice later expanded its partnership with the addition of Jack Boyle and Ron Quillin, becoming known as Groner, Boyle & Quillin. The initials of the named partners gave rise to the GBQ identity that became familiar in the local market. The firm remained rooted in Columbus while gradually broadening its capabilities and client base. In 1990, Groner, Boyle & Quillin moved to the Brewery District near the historic German Village. The relocation reflected the firm’s continuing development as a substantial local professional-services practice. Its work eventually extended beyond conventional accounting to include tax, valuation, forensic, restructuring, and management advisory services. A leadership transition occurred in 1996, when Ron Quillin retired as the last of the named partners. Wade Kozich assumed responsibility as managing director and held that position for 14 years. The available historical account characterizes Kozich’s tenure as a period of considerable growth and market expansion. Also in 1996, GBQ joined the BDO Seidman Alliance as an independent member. The relationship connected the firm with the resources of a larger accounting and consulting network without converting GBQ into a BDO-owned office. In 1999, the firm formally changed its name to GBQ Partners LLC, codifying the shorter name by which it had been informally known. The change preserved the GBQ identity while reflecting the firm’s partnership structure and expanded professional-services scope. The next major expansion described in the available sources occurred in 2008. GBQ moved its Columbus office to 230 West Street in the Arena District and acquired the business valuation division of Goelzer Investment Management in Indianapolis. The acquisition added valuation capabilities and established a second office outside Columbus. Over time, GBQ became identified as a major independent accounting and consulting firm in Central Ohio and as the largest Columbus-owned accounting firm. The referenced history reports a workforce of more than 100 associates, including 13 partners. Its primary market consists of closely held companies and middle-market businesses in Central Ohio, but its assignments have included organizations ranging from start-ups to enterprises with more than $1 billion in revenue. GBQ’s service portfolio covers assurance and tax as well as specialized advisory work. Its capabilities include business valuation, forensic accounting, expert witness testimony, bankruptcy and turnaround consulting, state and local tax consulting, profit improvement, management consulting, information-technology risk management, and consulting for medical practices and healthcare companies. Its industry focus includes manufacturing, distribution, construction, real estate, service businesses, and nonprofit organizations. The firm’s historical development therefore reflects a progression from a local accounting partnership to a multidisciplinary, independently owned professional-services firm with regional reach and network access through the BDO Seidman Alliance.
- 2008
Indianapolis expansion
[1]GBQ moved its Columbus office to the Arena District and acquired Goelzer Investment Management’s business valuation division, opening an Indianapolis office.
- 1999
Formal adoption of GBQ Partners LLC
[1]The firm officially changed its name to GBQ Partners LLC.
- 1996
Leadership transition and BDO alliance membership
[1]Ron Quillin retired, Wade Kozich became managing director, and GBQ joined the BDO Seidman Alliance as an independent member.
- 1990
Move to the Brewery District
[1]The firm relocated to the Brewery District near Columbus’s German Village.
- 1953
Firm founded by Morris W. Groner
[1]Morris W. Groner established the accounting practice that eventually became GBQ Partners.
Products and positioning
An independent Central Ohio accounting and consulting firm focused on privately held and middle-market organizations, combining local ownership and sector expertise with broader resources through the BDO Seidman Alliance.
Accounting services
Audit and assurance
GBQ’s traditional assurance work forms part of its core accounting offering for businesses and other organizations. The available reference identifies assurance as a principal service line, but does not specify particular audit products, methodologies, or sector programs.
Tax advisory and compliance
Tax services
The firm provides tax services as part of its conventional accounting and advisory practice. Its broader tax capabilities include state and local tax consulting, supporting clients that operate across different jurisdictions.
Transaction and valuation advisory · 2008
Business valuation
GBQ provides business valuation services for closely held and middle-market organizations. The practice was expanded through the 2008 acquisition of the business valuation division of Goelzer Investment Management in Indianapolis.
Litigation and investigative advisory
Forensic accounting and expert witness services
The firm offers forensic accounting and expert witness testimony as specialized advisory services. The available source does not provide further detail on case types, methodologies, or named practices.
Consulting
Turnaround and management consulting
GBQ’s consulting portfolio includes bankruptcy and turnaround work, profit enhancement, and management consulting. These services extend the firm’s role beyond compliance accounting into operational and financial advisory support.
Brand decisions
2008
Acquire Goelzer’s business valuation divisionM&ABackground
GBQ sought to expand its valuation capabilities and geographic presence beyond Central Ohio.
Action taken
The firm purchased the business valuation division of Goelzer Investment Management and opened an Indianapolis office.
Aftermath
The transaction gave GBQ a second office and strengthened its business valuation offering.
1999
Formalize the GBQ Partners nameOtherBackground
The firm had become informally known as GBQ after operating under the Groner, Boyle & Quillin name.
Action taken
It officially changed its name to GBQ Partners LLC.
Aftermath
The shorter GBQ identity became the firm’s formal corporate name.
1996
Join the BDO Seidman AllianceStrategyBackground
GBQ was expanding its capabilities while remaining an independent regional accounting and consulting firm.
Action taken
The firm became an independent member of the BDO Seidman Alliance, obtaining access to broader network resources without being described as acquired by BDO.
Aftermath
The alliance provided an international and national network connection while GBQ continued operating under its own identity.
Sources1 sources
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