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Who We Are


Marcus Wagner

Founder and CEO

Marcus has more than 20 years of experience working with small, medium, and large companies in the areas of financial accounting and auditing, process and internal controls consulting, and management advisory services. His career began at PwC, where he spent time in the financial audit and risk advisory practices. He left PwC to be a co-founding partner of Calvetti, Ferguson & Wagner, an accounting firm in Houston, TX.

Ken West, COO

Ken West, Jr.


Ken’s career includes experience in senior management positions in both the professional services industry and in the energy sector. He was a senior manager at PricewaterhouseCoopers for 9 years, where he was involved in Information Systems Technology Consulting, Information Systems Audits, and Business Process Controls. Most recently before joining AcctTwo as COO, he was the Director of IT Business Solutions for Southwestern Energy.

Brett Michalson


Brett began his career at PricewaterhouseCoopers, where he worked in the Systems and Process Assurance Practice, advising clients and audit teams on information systems security and controls issues. More recently, Brett was a manager in the Advisory Practice at Calvetti, Ferguson & Wagner, P.C., a Houston-based public accounting firm, where he assisted public companies in complying with the information technology requirements of the Sarbanes-Oxley Act.

John Silver

VP, Sales

For more than 20 years, John has provided leadership and direction in the areas of marketing, sales, and business development to SMBs and Fortune 100 companies. He has worked across many industries, including finance, cloud technology, travel and residential construction. John has led marketing, sales, and business teams, as well as played a key role in the creation of new departments and the management of product launches.

Tammy Bunting

Director, NFP Services

Tammy has more than 25 years of experience in accounting, business administration, operations, and management. This includes work in both the secular and non-profit Christian environments. She’s been responsible for providing the controllership functions of all business environments at a multi-ministry church enterprise, and been a partner in a thriving Sage Intacct value-added reseller business.

Sean Atchison

Managing Director

Prior to joining AcctTwo, Sean spent 4 years at Accretive Solutions in various roles, including Director, Client Development, and Vice President and Market Leader for the Houston Market. Before that, Sean spent 5 years at Adams Harris as Director of Client Development. Sean also has experience in accounting and internal audit roles, including 3 years at PwC, 2 years as a Senior Consultant at Protiviti, and a year as Manager of Internal Audit at Live Nation.

Britt Sudduth

Managing Director

Britt has had a successful career as an entrepreneur and business owner, and has held executive and sales leadership positions across multiple industries, including a consulting position with a leading Houston-area Microsoft Dynamics CRM and GP partner. Britt is heavily involved in philanthropy in the Houston community, acting as Chairman of the Board for Heroes for Children, a nonprofit that advocates for and provides financial and social assistance to families with children battling cancer.

Chris Carter

VP, Professional Services

Chris has more than 20 years of experience as an IT leader in the Energy and Telecommunications industries. Chris was the top executive responsible for global IT operations at both RigNet and Caprock Communications, Director of E-Commerce Development at National Oilwell Varco, as well as CEO at PIDX International. His areas of expertise include ERP implementations and integrations, system design and development, and organizational development.