More than any company I've found, Mailchimp works to create better listening opportunities with their customers. It's not enough to pay attention when customers speak up. We have to prompt customers to share. At Mailchimp they try to make it fun and productive. 

Fast Company: MailChimp’s cofounder shares the best ways to get to know your customers, 2018-Sep-23 by Dan Kurzius

Visit your customers where they live or work… 

Invite customers into your office… 

Be your customer for a day… 

Early on, we decided that our motto was going to be, “Listen hard, change fast.” For us, this meant constantly looking for improvement and innovating quickly, and letting the customer dictate our focus as a company.