Recent appointments, promotions, new hires and awards.

Sophia Mohr, Chief Innovation Officer
Mohr is COTA's first chief innovation officer. She comes to COTA from the private sector, most recently serving as VP of owner experience design and strategy at NetJets, a Berkshire Hathaway company headquartered in Columbus. Under her direction, Mohr’s team designed and developed strategies to improve the customer experience for NetJets’ clients.

Jim Negron, President
Negron most recently served as executive vice president of the Columbus-based company.

Jennifer Zimmerman, Senior Manager, Tax & Business Advisory Services
Since joining GBQ in 2011, Zimmerman has managed a diverse client base across a variety of industries including service, construction, restaurants, manufacturing, technology and distribution. 

Kelly Noll, Director, Valuation & Financial Opinion Services
Since joining GBQ in 2008, Noll has performed hundreds of valuation engagements involving businesses, business interests and intangible assets of privately held and publicly traded companies.

Eric Dollin, Director, Valuation & Financial Opinion Services
Since joining GBQ in 2007, Dollin has performed or contributed to over 800 valuation, merger and acquisition, and forensic/litigation assignments.

Chris Mast, Senior Manager, Assurance & Business Advisory Services
Since joining GBQ in 2011, Mast has served a variety of clients in the construction, real estate, manufacturing, service and nonprofit industries. He is also part of the employee benefit plan audit group and has experience managing audits for defined contribution plans.

Mike Purcell, Senior Manager, Assurance & Business Advisory Services
Purcell joined GBQ in 2012 and provides assurance and advisory services to SEC registrants and privately held companies.

Sara Robertson, Director of Market Strategy
As director of market strategy, Sara is responsible for overseeing the marketing and sales functions for alignment toward targeted revenue growth.

Ed Bannen, Senior Manager, Assurance & Business Advisory Services

Bannen's experience includes performing and managing audits, reviews and agreed-upon procedures for a variety of industry niches including SEC clients, manufacturing and distribution, construction, real estate and technology.