HubSpot Email Marketing is a core Marketing Hub component founded in Cambridge in 2006, deeply integrated with the free CRM, offering drag-and-drop editing, smart send times, and A/B testing.
beehiiv is a creator newsletter platform founded in 2021 in New York, hosting 60,000+ newsletters with editing, growth, ad monetization, and paid subscriptions in one place.
SendX is an email marketing automation platform founded in 2016 in the USA, serving 10,000+ business customers and known for its visual workflow builder, AI smart sending, and affordability.
VerticalResponse is an email marketing platform founded in 2001 in San Francisco, serving 1,000,000+ users by combining email, online surveys, and event invitations in one place.
Twilio SendGrid is a scalable email sending platform headquartered in Denver, United States, offering high-deliverability APIs, marketing email, and transactional email services for developers and sending scenarios.
Newsletter Glue is a WordPress newsletter plugin launched in 2016 that lets users create emails in the WP editor and send and track them automatically through Mailchimp, ConvertKit, and other providers.
MailPoet is a native WordPress newsletter plugin launched in 2011 and used by 600,000+ sites, featuring a drag-and-drop editor, automation workflows, and WooCommerce integration with a free plan for 500 subscribers.
Mailigen is an email marketing platform founded in 2009 in Latvia, combining email, SMS, and automation with multilingual campaign support for European SMBs.
iContact is an email marketing service founded in 2003 in Durham, USA, serving 100,000+ users with an easy-to-use, affordable solution for SMBs.
Founded in 2015 in London, UK, Mailosaur is an automated email and SMS testing platform for developers. It provides dedicated test inboxes, Spam Score analysis, HTML/CSS rendering validation, and API integration to automate email and SMS verification in CI/CD pipelines.
Founded in 2008 by Hiten Shah and Neil Patel in San Francisco, California, Kissmetrics is a pioneer of People-Based Analytics for customer behavior, having introduced cohort analysis and surpassed 100,000 business users by 2012.
Drip was founded in 2012 and is headquartered in Chicago, USA, as an ecommerce CRM and email automation platform built for online retailers. Deep ecommerce data integration, behavioral trigger workflows, and a dynamic segmentation engine help brands automate their full customer lifecycle.
Customer.io was founded in 2012 and is headquartered in Portland, USA, as a behavioral email and message automation platform. An event-driven engine, visual customer journeys, and multi-channel reach help product and marketing teams send personalized messages in real time based on real user behavior.
ConvertKit (rebranded as Kit in 2024), founded in 2013 and headquartered in Boise, Idaho, is an email marketing platform built for content creators, serving 500K+ creators. It is known for tag-based subscriber management, visual automation workflows, and digital product delivery across blogging, YouTube, podcasting, and online education.
Constant Contact, founded in 1995 and headquartered in Waltham, Massachusetts, is a legacy email marketing platform for small businesses and nonprofits, serving 600,000+ customers.
Mailchimp was founded in 2001 and is headquartered in Atlanta, USA, serving 14M+ users as an email marketing and marketing automation platform. It integrates email marketing, customer journey automation, and CRM, now operating under Intuit.