Choosing the right email service provider (ESP) is difficult, not least because there are so many ESPs out there.
In this buffet guide, we’re not going to overwhelm you with too many options. We’ll only cover some of the best, most popular ESPs in the market today. These are: Mailchimp, Klaviyo, Salesforce, HubSpot, and Marketo.
It’s a “buffet” guide because of its objective nature; your choice will ultimately depend on your own business needs, financial capital, and staff training resources. You can choose any ESP based on these subjective parameters.
For your information, the following comparative analyses, excluding the pros and cons, are based on the software profiles listed on Capterra and GetApp. As far as the pricing comparisons are concerned, we’ve only included one parameter, the starting/base price. For more details, we’d recommend you to visit the ESPs’ official pricing pages.
Also for your information, we’re experts in all the listed ESPs in this guide, plus over 50 more. So our pros and cons are inside-out, drawn from experience, and honest.
Let’s get started.
- Mailchimp & Klaviyo
- Mailchimp & Salesforce
- Mailchimp & HubSpot
- Mailchimp & Marketo
- Salesforce & Klaviyo
- Salesforce & HubSpot
- Salesforce & Marketo
- Klaviyo & HubSpot
- Klaviyo & Marketo
- HubSpot & Marketo
- Pros & Cons: Comparative Study
1. Mailchimp & Klaviyo

2. Mailchimp & Salesforce

3. Mailchimp & Hubspot

4. Mailchimp & Marketo

5. Salesforce & Klaviyo

6. Salesforce & HubSpot

7. Salesforce & Marketo

8. Klaviyo & HubSpot

9. Klaviyo & Marketo

10. HubSpot & Marketo

Pros & Cons: Comparative Study
The following pros and cons of the email service providers are based on our experience and customer feedback.

Less Baffled or—More? 😧
If you’re still, if not more, confused, pause first. Take a deep breath!
You’re full of questions and doubts. Which is all right. But the last thing you want to do is increase your options right away. Start with just these five ESPs for now. Narrow it down, if you need, to just two for easier comparison. Take time to explore their websites. (see Intro)
But if that’s too much to ask for, and you need to choose the right ESP quickly, get in touch with us. We’ll answer all your questions relative to your custom requirements.
Should you need further assistance, our six-tier email marketing framework will kickstart, from Discovery to Analytics and Reporting.




