MARC MARTIN

Marc Martin is the Area Chair for C12, with Forums in Madison and Wausau. In addition to leading the members through the once-a-month full day of peer interaction, Marc meets individually with each member for a 90-minute coaching and accountability session. He also provides ad hoc consulting to members when they have additional needs, primarily in the area of strategic and business plan creation and implementation. For nine years Marc was President, Chief Technology Officer, and co-owner of three businesses based in Wausau, WI. Marc began working in the field of information technology in the mid-1980s while serving in the U.S. Air Force.  For over 20+ years he worked in the IT provider industry primarily managing technical services staff and helping them grow their technical and customer service skills.

DAVID VANDER SCHAAF

David Vander Schaaf serves as the Principal Chair with C12 Business Forums in Central and Southern Wisconsin. C12 is the world’s largest peer-learning organization for Christian CEOs, business owners, and executives, serving 4,000 members throughout the United States and internationally. David has been serving as a C12 Chair since 2025 and currently serves 24 members in CEO and key player forums. Collectively, members in David’s forums generate over $70 million in revenue and employ hundreds of people in the Central and Southern part of WI. Prior to joining C12, David served as Regional Team Leader with Century 21 Affiliated, responsible for 5 offices in the South Central part of the state. David previously served as Vice President in a healthcare system responsible for 20 departments and over 100 employees, and earlier was Vice President with the Gallup Healthcare Group developing marketing and HR strategies based on market research and survey feedback. Throughout  David’s career, he’s authored numerous articles and lead presentations at national and regional conferences. Additionally, David has actively served on the board and led various non-profit and service organizations including the Network for Charitable Giving, the Baraboo Community Fund, Baraboo Youth Hockey, Baraboo Thunder Girls Softball and the Baraboo Kiwanis. David lives in Baraboo with his wife Diane. They have been active in their local church their entire lives. They have 4 adult children, and 2 grandchildren and the ravenous cat, Chai. David’s current life verse is, Phil 2: 1-4: So if there is any encouragement in Christ, any comfort from love, any participation in the Spirit, any affection and sympathy, complete my joy by being of the same mind, having the same love, being in full accord and of one mind. Do nothing from selfish ambition or conceit, but in humility count others more significant than yourselves. Let each of you look not only to his own interests, but also to the interests of others.