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C-Level Partners

Walter Belt CPA

CFO Managing Partner - San Antonio

Walter brings 27 years of experience as a Big 4 audit partner focused upon banking and financial services, two years as the chief credit officer of a newly chartered community bank, and two years consulting with community banks on credit, financial reporting, regulatory compliance and risk management issues. Walter has had Clients ranging in size from the world’s largest banking organizations to newly chartered commercial banks. In addition to managing financial statement audits, Walter has led and successfully delivered a variety..
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Rex Holmes

CFO Managing Partner - Houston & Dallas

Rex is a seasoned and highly-effective professional services executive with Big 4 experience. He has spent 30 years serving Boards and Executive teams for a wide range of clients and industries. He has worked with enterprises ranging from Emerging Growth Companies to Fortune 100; including privately-held, public registrants, private-equity portfolio companies, joint ventures, partnerships, MLP’s and foreign enterprises. Rex has a proven record of being an exceptional problem solver in challenging circumstances and an outstanding team lead..
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Gary Brooks

CFO Partner - Houston

Gary uses his extensive and diverse experience to deliver cost effective financial, operational, technology, and human resource solutions to clients in transition. His transition experience includes working as an interim CFO, preparing businesses for sale, arranging bank and other financing, supporting rapid growth, preparing for opening new markets, and surviving downturns. Areas of expertise include financial leadership, strategic vision, performance optimization, efficient cash management, optimizing banking relationships, fund raising, ..
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Gary Candy

CFO Partner - San Antonio

Gary was originally a CFO Partner in San Antonio from 2012 to 2014 before becoming CFO at Continental Floral Greens, one of Aventine Hill's clients. We welcomed Gary back to Aventine Hill in late 2015 after a successful strategic transaction resulted in the sale of Continental Floral Greens. Gary has 30+ years in manufacturing, and his industry background includes machinery, automotive, consumer electronics, and food. His management experience includes six manufacturing plant startups in the United States, and two in Mexico. He built pr..
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Rita Carroll

CFO/Corporate Development Partner - Houston

Rita served in Corporate Development and Finance roles with leading public and private manufacturing companies. She has completed transactions totaling $2.7 billion in value. Her transaction experience includes leading teams in North and South America, Europe, Asia and Africa. She has served on industry committees and panels on topics ranging from managing investments to global transactions. She has led teams in turnaround and high growth situations, with transactions between $1 million and $1.5 billion. She has also negotiated complex ..
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Ralph Davis CPA

CFO Partner - Houston

Ralph was part of a four man team, first as the CFO and later as President, for the start-up of ALSTOM Power Industrial Turbines, a division of ALSTOM, for North and South America. Ralph managed the establishment of the company’s infrastructure including three domestic and three foreign service centers and played an integral role in its growth in five years to revenues in excess of $400 million before its sale to Siemens. Ralph established the entire financial and back office function including systems and procedures for the start..
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Tom Davoren

CIO Partner - Houston

Tom’s career includes 24 years with a Fortune 100 financial services organization where he was recognized for reducing the number of data centers from 27 to 4, significantly reducing the cost of IT within his organization. He also worked for a large transportation company where he implemented a second data center to mitigate risk to the company. He was also responsible for data security and legislative compliance which included the implementation of necessary controls and procedures to meet the requirements of Sarbanes Oxley. Tom ..
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Jeannie Frazier

CFO Partner - San Antonio

Jeannie has over 30 years of experience working in the healthcare and biomedical research industry, most of it in non-profit environments. Thirteen of those years were spent at a large trauma teaching hospital where she was CFO. In addition, she served as CFO for a cancer center, at a basic biomedical research facility funded primarily by federal grants and a for-profit start-up company that provided health screening to individuals, both as part of company wellness events and in retail environments. She was also involved in the development ..
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Tim Geppert CPA

CFO Partner - San Antonio

Since joining Aventine Hill CFOs in 2012 Tim has focused his practice on small to midsize construction companies, principally subcontractors. This includes concrete, masonry, interior, electrical, mechanical, telecom, utility, flooring, and other specialty contractors. Services include Fractional CFO or Controller, family mediation, buy/sell transactions, Exit Planning, CPA year end preparations, special projects, financial analysis, productivity/profitability improvement, and Quarterly Financial Statement reviews. Tim began..
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Steve Goodland CPA

CFO Partner - San Antonio

Steve originally joined Aventine Hill as a CFO Partner in Houston during 2015. He moved to San Antonio to become Interim CFO at Goodwill of San Antonio, one of Aventine Hill's clients and is now based in San Antonio. Steve brings over 30 years of broad based experience as a CFO/Controller for internationally operating manufacturing and service companies including publicly owned, private equity backed and family owned businesses. His senior management roles have included directing the financial, information technology and ..
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Casey Hall

CIO Partner - Houston

Casey brings diverse senior leadership experience in business and IT roles across the financial services and chemicals/refining industries. He has driven large scale business process improvements; global & local scale system implementations; merger & acquisition IT integration; and divestiture transition. During his 13 years at Lyondell Chemical and LyondellBasell, Casey led ERP implementations and consolidations with a deep focus on finance, accounting, and shared services functions. He drove business and IT change during perio..
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Robert Harbert

CIO Partner - Austin

Robert has accumulated over 25 years of leadership experience in all aspects of Information Technology for business units large and small within the oilfield service industry. The business processes he has supported include manufacturing, both discrete and process, service and rentals, as well as all corporate administrative functions. He has led global organizations, supporting technology, and systems serving both domestic and international environments. As a senior IT leader, Robert has been responsible for all aspects of IT, includin..
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John Kuhlke CPA

CFO Partner - Dallas

John has a broad range of experience in accounting, financial, and operations management. He has served at the C-level over the last 25 years as an innovative and internationally experienced Chief Executive Officer, Executive Director, Chief Financial Officer and Controller in construction, international sales and distribution, and professional services. John began his career with a Big 4 accounting firm in Minneapolis, serving public and private clients, performing audits in banking, brokerage, distribution, healthcare, insurance, manu..
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Bill Sivak CPA

CFO Partner - San Antonio

Bill has a broad base of experience with more than 30 years of senior management predominantly in food related businesses including publicly owned, private equity backed, and privately owned companies. He was a trusted partner with CEOs and liaison with key stakeholders. Bill's career foundation was in public accounting, beginning with a Big 4 firm predecessor and then as an audit practice partner in a national firm. His public accounting experience included client businesses in the real estate development, construction contracting, re..
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Jimmie Thurmond CPA

CFO Partner - San Antonio

Jimmie began his career in the tax department of a Big 4 Accounting firm. After public accounting, Jimmie spent over 22 years in his family’s business that was a manufacturer of capital equipment. The company had national and international distributors along with a few foreign licensees. During his years with the company, Jimmie was instrumental in several restructuring initiatives including a successful Chapter 11 Bankruptcy reorganization, the start-up of manufacturing in Mexico, operational reorganizations that relocated major elem..
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Roy Bowman

Lifetime Member - Houston

Roy was the CFO Managing Partner in Houston from 2014 to 2016 before transitioning to a role as Vice President at CLS Partners. His 30-year career includes serving as Chief Executive Officer, Executive Vice President, Chief Financial Officer, and Controller for companies in the manufacturing, aviation, energy trading, oil and gas exploration, residential construction, mortgage lending, real estate, and automotive retail sectors. His areas of expertise include financial leadership, CFO consulting, restructuring, raising capital, Sarbanes-Oxl..
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Mike English CPA

Lifetime Member - Dallas

Mike joined Aventine Hill as CFO partner in Dallas in 2016 before being named CFO at Alternate Health Corporation in 2017. He has over 30 years of experience working in several diverse industries including data security and encryption software, telecommunications, and heavy industrial electric motors and controls. Ten of those years were with a leading software as a service (SaaS) public encryption company where he served as controller and CFO. Under Mike’s leadership, the company drastically improved earnings and cash flow..
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Gary Gill

Lifetime Member - San Antonio

Gary was a CFO Partner in San Antonio during 2014 and 2015 before becoming CFO at Safe Harbor Compliance and Clinical Services in Austin. He has over 30 years of accounting and financial management experience including working at the CFO level for over 20 years. After graduating from law school, Gary started his career with the Big 4 accounting firm, PWC. From there he had long tenures in private equity market, consulting, and investment banking. For the previous ten years, Gary has provided CFO services to companies in Dallas, Houston,..
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Jens Mielke CPA

Lifetime Member - Dallas

Jens joined Aventine Hill as CFO Partner in Dallas in 2014 and was subsequently appointed National Partner for Technical Accounting in 2015. He returned to an industry role as a CFO in 2016. Jens has over 25 years of experience as a financial executive. As Chief Financial Officer and previously as auditor, Jens has led teams on diverse projects such as ERP systems implementations, internal controls implementation, remediation and rationalization, forensic investigations, secondary securities offerings, multi-year financial restatements,..
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David Pomerantz

Lifetime Member - Houston

David was a CFO Partner in Houston from 2013 to 2014 before becoming CFO at Primary Arms. David has over 25 years of experience working with large and small public and private companies in senior executive financial and operating positions. Prior to joining Aventine Hill, he served as Chief Financial Officer, Treasurer and Secretary for an international, public oil and gas exploration company where he was responsible for financial management, SEC reporting and Sarbanes Oxley compliance. David has also served as a senior executive with comp..
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Doug Ryan

Lifetime Member - Houston

Doug was a CFO Partner during 2015 before transitioning to be CFO at KP Engineering, one of Aventine Hill's clients. Doug gained over 25 years of experience in energy, mining and manufacturing while performing a variety of increasingly complex finance, treasury, accounting, investor relations, audit and internal control roles. He has led and managed the expansion and stabilization of several publicly-traded and privately held organizations undergoing significant growth or change. As an integral part of several executive manag..
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Otto Schwethelm CPA

Lifetime Member - San Antonio

Otto was a CFO Partner in San Antonio from 2014 to 2017 before transitioning to a role as CFO of MP Mine Operations LLC in Mountain Pass, California. He has over 30 years of experience as an accounting and finance executive, predominately in the energy sector. He has served as CFO of Tesoro Corporation (a Fortune 100 refining, marketing and logistics company), Oman Oil Refineries and Petroleum Industries Company (the government of the Sultanate of Oman’s downstream refining and petrochemical organization) and a Saudi Arabian family-ow..
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Ron Stefani

Lifetime Member - Houston

Ron was a CFO / CAE Partner in Houston from 2013 to 2016 before transitioning to be CFO at Optimas Manufacturing Solutions, one of Aventine Hill's clients. He has over 30 years of international business experience in leadership roles for Fortune 500, medium, and small private companies in the areas of Finance, Accounting, Auditing, and Operations. As a Chief Audit Executive (CAE) for several large companies, Ron started the audit and enterprise risk management department and turned-around under-performing audit departments. Ron played a..
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Bill Wagner

Lifetime Member - San Antonio

Bill was CFO Partner in San Antonio during 2015 and 2016 before transitioning to become CFO at Walton Signage, one of Aventine Hill's clients. He is a highly successful senior financial and operations executive with over 30 years’ experience in manufacturing, distribution, and consumer products. While his experience includes directly managing business operations, he has also had extensive roles as a consultant, private equity fund manager, and active board member. Bill currently provides CFO and operational management services to ..
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Michael Welch

Lifetime Member - Dallas

Michael was CFO Partner in 2014 and Dallas CFO Managing Partner during 2015 before returning to a finance leadership role in industry. He has extensive experience with companies that are in the start-up phase, undergoing major growth initiatives, or experiencing some type of other major change. Prior to joining Aventine Hill Partners, Michael acted as the Chief Financial Officer for multiple small cap companies in Dallas. Michael is one of the co-founders and former Chief Financial Officer of a Dallas-based restaurant holding company. M..
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