Steve Rivers, CPA
Managing Partner

Steve Rivers, CPA
Managing Partner
Steve leads Rivers & Moorehead and has two decades of experience serving clients of and developing people. Founding Rivers & Moorehead in 2004, Steve set out to provide businesses with a highly-skilled professional services firm designed to be the perfect extension to any accounting department. Through his experience within numerous Fortune 1000 companies, Steve has developed the highly technical accounting knowledge and business sense necessary to solve some of today’s most complex compliance challenges. He is an experienced leader who believes in clear communication, accountability, and execution.
Professional Experience
- CFO at Medistem Inc.
- Interim Vice President of Corporate Accounting at Avnet, Inc.
- Controller at ON Semiconductor
- Member of the Assurance Services Staff at KPMG and Arthur Andersen
- Certified Public Accountant in Arizona
Education
- Bachelor of Science, Accounting from Indiana University Bloomington
Brian Jones
Partner

Brian Jones
Partner
Brian joined the firm in 2014 to launch the firm’s Business Valuation Services practice. Brian has over 20 years of experience performing complex valuation engagements for various public and private entities as well as many Fortune 500 companies. Brian specializes in valuing complex securities and derivative financial instruments as well as contingent liabilities.
Professional Experience
- Partner and Financial Reporting Practice Leader at Kotzin Valuation Partners
- Vice President, Corporate Value Consulting at Duff & Phelps
- Member of the Valuation Staff at PwC
Education
- Master of Science, Capital Markets & Financial Engineering at Illinois Institute of Technology
- Bachelor of Science, Economics from Oregon State University
Tammy Rivers, CPA, CFE
Partner

Tammy Rivers, CPA
Partner
Tammy leads the firm’s SOX consulting portion of our SEC Compliance practice and brings decades of experience in public accounting and industry. She diligently assists clients of all sizes through the complexities of Sarbanes-Oxley compliance requirements and consults on fraud prevention and internal control implementation and design.
Professional Experience
- Internal Audit World Manager at On Semiconductor
- Finance Special Projects Manager at On Semiconductor
- Member of the Assurance Staff at PwC and KPMG
- Certified Public Accountant in Arizona
- Certified Fraud Examiner
Education
- Bachelor of Science, Accounting from Loyola University
Kevin Marcelo, CPA
Partner

Kevin Marcelo, CPA
Partner
With over 15 years of experience in public accounting and as a consultant to some of Phoenix’s largest companies, Kevin primarily works within the firm’s SEC Compliance, Pre-Audit and Financial Reporting and Accounting Projects, Controllership Services & Staff Augmentation practice areas. Kevin specializes in U.S. GAAP and SEC reporting as well as complex research and analysis within these areas.
Professional Experience
- Consultant to ON Semiconductor, Amkor Technology, The Joint and various private clients
- Senior Manager at Deloitte
- Certified Public Accountant in Arizona
Education
- Bachelor of Science, Economics and Accounting from University of California Los Angeles
Shawn Moore
Partner

Shawn Moore
Partner
Shawn’s deep industry experience provides clients with a unique prospective into their accounting functions. Shawn works within the firm’s Pre-Audit and Financial Reporting and Accounting Projects, Controllership Services & Staff Augmentation practices. He provides outsourced controller consulting services that include general ledger setup and maintenance, consolidations, accounting department best practices, accounting software implementation and efficiency maximization, monthly financial reporting and audit preparation.
Professional Experience
- Consultant to Bio2 Medical and Drake Cement
- CFO Pinnacle Transportation
- Accounting Manager at Knight Transportation
- Controller at Roadwest Transportation
- Regional Accountant at Fleetwood RV, Inc.
Education
- Master of Business Administration, University of Phoenix
- Bachelor of Science, Business/Economics with a specialization in Accounting, Eastern Oregon University
Alex Manuel, CPA
Partner
Alex Manuel, CPA
Senior Manager
With over seven years of experience in public accounting, Alex works within the firm’s Pre-Audit and Financial Reporting and Accounting Projects practice areas. Alex has worked in a wide variety of industries through his public accounting career, bringing U.S. GAAP and SEC reporting experience as well as research and analysis within these areas.
Professional Experience
- Manager at Ernst and Young
- Certified Public Accountant in Arizona
- Member of the Board of Directors and Treasurer of an Arizona based Not-for-Profit
Education
- Bachelor of Science, Accounting from University of Arizona
Eric Wolf
Partner

Eric Wolf
Director
Eric Wolf leads the firm’s Complex Securities Valuation Services Practice and specializes in valuing complex securities, derivative financial instruments and contingent assets and liabilities.
Professional Experience
- Manager at Kotzin Valuation Partners
Education
- Bachelor of Science, Arizona State University
Austin P Kupper, CPA
Senior Manager

Austin Kupper, CPA
Senior Manager
With over ten years of experience in public accounting, Austin primarily works within the firm’s Pre-Audit and Financial Reporting and Accounting Projects, Controllership Services & Staff Augmentation practice areas. Austin specializes in U.S. GAAP and financial reporting as well as complex research and analysis within these areas.
Professional Experience
- Consultant to AR500 Armor, FasPsych and root9B
- Supervisor at RSM US LLP
- Member of assurance staff at PWC LLP
- Member of assurance staff at Mayer Hoffman McCann P.C.
- Certified Public Accountant in Arizona
Education
- Bachelor of Science – Accountancy, Arizona State University, Phoenix, Arizona
Lori Meinhardt
Manager

Lori Meinhardt
Manager
Lori is a manager and works in the firm’s SEC Compliance and Accounting Projects, Controllership Services & Staff Augmentation practices. She had 10 years of experience and her background includes public accounting with a Big Four firm and internal audit with a large consulting firm, which gives her the requisite experience to provide excellent service to our clients. She manages multiple public client filings as well as performs monthly controllership duties for private clients.
Professional Experience
- Consultant to The Joint, Nanoflex, and Stem Cell Institute
- Manager at Protiviti
- Member of the Assurance Staff at Arthur Andersen
Education
- Bachelor of Science, Accounting from University of Arizona
Cory Strengholt, CPA
Senior Manager

Cory Strengholt, CPA
Manager
With over six years of experience in public accounting, Cory works within the firm’s Pre- Audit and Financial Reporting and Accounting Projects practice areas. His background with Big Four public accounting has allowed him to gain experience in a wide variety of industries as well as companies of all sizes. Cory is skilled in U.S. GAAP, SEC reporting, audit preparation as well as related technical accounting research and analysis.
Professional Experience
- Manager at Ernst and Young
- Certified Public Accountant in Arizona
Education
- Master of Accountancy, from Arizona State University
- Bachelor of Science, Accounting from Calvin College
Charlene Lawson, CPA
Senior Manager

Austin Kupper, CPA
Senior Manager
With over ten years of experience in public accounting, Austin primarily works within the firm’s Pre-Audit and Financial Reporting and Accounting Projects, Controllership Services & Staff Augmentation practice areas. Austin specializes in U.S. GAAP and financial reporting as well as complex research and analysis within these areas.
Professional Experience
- Consultant to AR500 Armor, FasPsych and root9B
- Supervisor at RSM US LLP
- Member of assurance staff at PWC LLP
- Member of assurance staff at Mayer Hoffman McCann P.C.
- Certified Public Accountant in Arizona
Education
- Bachelor of Science – Accountancy, Arizona State University, Phoenix, Arizona
Amy Odgers, CPA
Senior Manager

Amy Odgers, CPA
Manager
With over six years of experience in Big Four public accounting, Amy served both public and private company clients, in a wide variety of industries. She works within the firm’s SEC Compliance, Pre-Audit Preparation and Outsourced Accounting Services practice areas, and is proficient in U.S. GAAP, SEC filings, financial reporting, internal controls, audit preparation, and technical accounting research.
Professional Experience
- Manager at Ernst and Young
- Certified Public Accountant in Arizona
Education
- Master of Accounting, The University of Arizona
- Bachelor of Science in Business Administration, Accounting & Business Economics, The University of Arizona
Amro Hussien, CPA
Manager

Amro Hussien, CPA
Senior Consultant
Amro has over seven years of public accounting experience. Amro works within the firm's accounting advisory and financial reporting practice areas. Amro specializes in financial reporting for public and private companies as well as complex accounting transaction research. Amro is a certified public accountant in Arizona.
Professional Experience
- Senior at Henry & Horne
- Senior at Wallace, Plese & Dreher
- Certified Public Accountant in Arizona
Education
- Bachelor of Business Administration - Accounting, University of Texas - El Paso
- Master of Business Administration - Accounting, University of Texas - El Paso
Matthew Samsky, CPA
Manager

Agata Steenken, CPA
Consultant
Agata has over 15 years of public accounting and industry experience and is a manager at our firm. Agata specializes in SEC reporting and external reporting for private companies.She is also a member of the adjunct faculty at Grand Canyon University. Agata is a Certified Public Accountant.
Professional Experience
- Certified Public Accountant in Arizona
- US Chief Accountant at ASML
- Controller at Mobile Mini, Inc.
- Manager at Arthur Andersen and Deloitte
Education
- Bachelor of Science – Accountancy, Arizona State University, Phoenix, Arizona
Kalyn Blazak, CPA
Manager
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Gina Piergallini, CPA
Consultant

Gina Piergallini, CPA
Consultant
With over 11 years of experience in public accounting, Gina served both public and private company clients, in a wide variety of industries. She works within the firm’s SEC Compliance, Pre-Audit Preparation and Outsourced Accounting Services practice areas, and is proficient in U.S. GAAP, SEC filings, financial reporting, internal controls, audit preparation, and technical accounting research.
Professional Experience
- Director at BDO
- Certified Public Accountant in Arizona
Education
- Master of Accounting, Arizona State University
- Bachelor of Science, Accounting, The University of Arizona
Dale Heitlauf, CPA
Consultant

Dale Heitlauf, CPA
Consultant
Dale is a manager in our Accounting Consulting practice area. Dale has an extensive background as a CFO/Controller and consultant. His diverse background allows him to quickly assess clients’ needs and become productive on client engagements. He is well-versed in financial accounting and reporting, internal controls, audit preparation and SOX testing.
Professional Experience
- CFO of World Wide Stone
- CFO of HMX, LLC
- Controller for several enterprises
- Member of the assurance staff at Moss Adams
Education
- Bachelor of Arts – Business Administration/Accounting, University of Washington
- Certified Public Accountant