The Sunbury Big Walnut Area Chamber of Commerce is growing in activity, in size, and in influence. We are a team of business, professional, and community people working hard to improve the business climate in the Big Walnut community! Join Today! Contact Us 1st Fridays Lunch and Learn Quarterly Membership Breakfast Next Previous Full Calendar This page brought to you by: The most important part of the Chamber is our Members. Help us shine the spotlight on our members. Member Deals Hot Deals Member Spotlight