Do you or your company use a CRM, customer relationship management tool? Or are your contacts in an excel form? Filtering and sorting contacts can sound daunting, but once you've got a system with efficiencies and organization in place, your contact list can look as good as your dresser drawer contents after a Marie Kondo session.
Our agency is a Hubspot partner, and their innovations resonated with our principles as a new business, and that's where you need to begin. Research and even test out some CRM's (yes there are free versions) to see how well each system serves your company and your needs. Every company has contacts and organizing them is essential to your growth and success.
The more you know about your customers, and prospects, the better your marketing and sales team will be.