Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Bylde - Bylde is a SaaS platform you can use to Start, Manage and Grow your groups and communities.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.