MEASURED 3 NOVEMBER 2026 · 5 AI ANSWERS
Best Email Marketing Software for Enterprise, according to 5 AIs
We asked ChatGPT, Gemini, Google AI Mode, Claude and Perplexity: “What is the best email marketing tool for a large enterprise?” All 5 AIs named HubSpot. This reports what those answers said on 3 November 2026, not our own review or test of these products.
Which brands each AI named
| Brand | Named in | ChatGPT | Gemini | Google AI Mode | Claude | Perplexity |
|---|---|---|---|---|---|---|
| HubSpot | 5 of 5 | Yes | Yes | Yes | Yes | Yes |
| Klaviyo | 4 of 5 | No | Yes | Yes | Yes | Yes |
| ActiveCampaign | 2 of 5 | No | Yes | No | Yes | No |
| Brevo | 1 of 5 | No | No | No | Yes | No |
| Mailchimp | 0 of 5 | No | No | No | No | No |
| MailerLite | 0 of 5 | No | No | No | No | No |
| Constant Contact | 0 of 5 | No | No | No | No | No |
| Kit | 0 of 5 | No | No | No | No | No |
| GetResponse | 0 of 5 | No | No | No | No | No |
Claude alone named Brevo.
How this question differs from the others
Named more often here than across the rest of email marketing tools:
- HubSpot: 5 of 5 here, against 11 of 25 on the other 5 questions.
- Klaviyo: 4 of 5 here, against 13 of 25 on the other 5 questions.
Named less often here:
- Mailchimp: 0 of 5 here, against 21 of 25 on the other 5 questions.
- MailerLite: 0 of 5 here, against 20 of 25 on the other 5 questions.
- Brevo: 1 of 5 here, against 19 of 25 on the other 5 questions.
Which websites these answers cited
The sites linked most often in these 5 answers. If you sell in this category, these are the pages shaping what AI tells your buyers.
| Website | Cited in |
|---|---|
| hubspot.com | 4 of 5 answers |
| ventureharbour.com | 3 of 5 answers |
| moengage.com | 2 of 5 answers |
| activecampaign.com | 1 of 5 answers |
| adobe.com | 1 of 5 answers |
| aimultiple.com | 1 of 5 answers |
| attentive.com | 1 of 5 answers |
| braze.com | 1 of 5 answers |
The other questions we asked
Best Email Marketing Software for Small Business
What is the best email marketing tool for a small business?
Best Value Email Marketing Software
Which email marketing tool offers the best value for money?
Easiest Email Marketing Software to Use
Which email marketing tool is the easiest to set up and use?
Top Email Marketing Tools in 2026
What are the top email marketing tools to consider in 2026?
Most Recommended Email Marketing Tools
Which email marketing tool do experts recommend most often?
See the full results for email marketing tools, across all 30 answers.
Cite this data
You are welcome to quote or republish these figures. Please credit IndexHalo with a link to this page (CC BY 4.0). All our datasets are on the data page.
IndexHalo. "What is the best email marketing tool for a large enterprise?." Measured 3 November 2026. https://www.indexhalo.com/leaderboards/email-marketing/enterprise/
<a href="https://www.indexhalo.com/leaderboards/email-marketing/enterprise/">What is the best email marketing tool for a large enterprise?, IndexHalo</a>