Klaviyo is the best in class email marketing solution for eCommerce. It's powerful because it connects to your store, and you can create awesome customer segments based on past purchasing behaviors, customer preferences, and even future predictions of spending.

With Mailchimp you can send newsletters and automated emails. You can build your email list with form or import your known contacts. Mailchimp offers pre-designed email templates and a drag and drop email builder.

Intercom is a Conversational Relationship Platform. It shows you who is using your product or website and makes it easy to personally communicate with them with targeted content, behavior-driven messages, and conversational support.

Meet Drip, the automated marketing platform designed to help growing ecommerce brands grow even more. How? Spot-on email marketing and onsite personalization backed by data and borne through unrivaled segmentation. Audience-growing forms, slide-ins, and popups. Customer support that’s way more copilot than cookie-cutter.

TaxJar is reimagining how businesses manage sales tax compliance. They offer a cloud-based platform to automate the entire sales tax life cycle across all of your sales channels — from calculations and nexus tracking to reporting and filing.