Several tools can assist in achieving accurate segmentation: 1. CRM Software: Customer Relationship Management (CRM) software can help you manage and analyze customer interactions and data. 2. Email Marketing Platforms: Platforms like Mailchimp, HubSpot, and ActiveCampaign offer advanced segmentation features. 3. Data Analytics Tools: Tools like Google Analytics can provide insights into subscriber behavior and preferences. 4. Automation Tools: Automation tools can help in dynamically updating segments based on real-time data.