Top 50 Email Marketing Service Providers & Best ESPs in 2021

One of hundreds of Email Service Providers (ESPs) are behind the marketing emails you receive in your inbox. With so many providers to choose from, shopping for one yourself can feel like a daunting task.

  • Which marketing services are other brands using?
  • How many of them are using service?
  • Which email services are the most popular?

When you combine the SendView and ESP Finder datasets, we’ve looking at tens of thousands of emails send by thousands of different brands. Which means that we can pretty reliable rank the top ESPs. So whether you’re looking for a new email marketing platform or just curious about how they stack up, here’e where things stand.

Live Email Marketing Services Rankings

And keep in mind, this is a live data. As more emails are analyzed by SendView users, the rankings below can change in real-time.

ESP Name % of Total Chart
    MailChimp     20.3%
MailChimp is one of the most well-known ESPs that works great for both large senders and small businesses. In fact, MailChimp built their business by serving small businesses and are still a top choice by businesses with smaller teams.
Founded: 2001   /   Free Plan: YES   /   Free Limit: 2000 contacts   /   Pricing From: $9.99/mo
    Salesforce     14.7%
Known more specifically as Salesforce Marketing Cloud, this ESP began as ExactTarget before being acquired by Salesforce in 2013. Similar to Salesforce as a whole, this email platform is primarily aimed at larger or enterprise clients.
Founded: 2000   /   Free Plan: NO   /   Free Limit: n/a   /   Pricing From: $400/mo
    Acoustic     6.1%
    Responsys     5.8%
    ConvertKit     4.5%
    Klaviyo     4.3%
    Braze     3.6%
    HubSpot     3.2%
    Sparkpost     3.2%
    Bronto     2.5%
    Listrak     2.5%
    ActiveCampaign     2.3%
    Constant Contact     2.2%
    Emarsys     2.1%
    Iterable     2.1%
    EmailOctopus     2.0%
    CampaignMonitor     1.7%
    Mapp     1.5%
    Sailthru     1.0%
    All In     0.8%
    Cordial     0.8%
    Dotmailer     0.8%
    Omnisend     0.7%
    Mailjet     0.6%
    Pardot     0.6%
    Drip     0.6%
    Substack     0.6%
    Epsilon     0.6%
    AWeber     0.6%
    MailerLite     0.5%
    Marketo     0.5%
    SendinBlue     0.5%     0.4%
    Infusionsoft     0.4%
    TravelClick     0.4%
    Intercom     0.3%
    Eloqua     0.3%
    Sendy     0.3%
    Maropost     0.2%
    Shopify     0.2%
    dotdigital     0.2%
    Acy Mailing     0.2%
    GetResponse     0.2%
    IBM     0.2%
    Emfluence     0.2%
    Cheetah     0.2%
    Navis     0.2%
    Quick18     0.1%
    Cendyn     0.1%
    Emma     0.1%