The most visible American B2B email marketing tools on Google AI Overviews, October 2026

October 2026 · 12 questions asked in English, worldwide · Google AI Overviews · 24 answers read

Most cited source

youtube.com

20citations

From Google AI Overviews

Where engines disagree most

One engine

This page reads Google AI Overviews only. Set Engine to All to compare them.

Brands

Rank Brand Heralded Score Mentioned Recommended By engine Mentioned by Change
– ConvertKit US Too few answers 0% 0% First reading
– Customer.io US Too few answers 0% 0% First reading
– Drip US Too few answers 0% 0% First reading
– Flodesk US Too few answers 0% 0% First reading
– HubSpot Marketing Hub US Too few answers 0% 0% First reading
– Omeda US Too few answers 4% 4% None First reading
– Salesforce Marketing Cloud US Too few answers 0% 0% First reading
– Seguno US Too few answers 0% 0% None First reading
– Substack US Too few answers 0% 0% First reading
– Twilio SendGrid US Too few answers 4% 4% First reading

“=” marks brands whose score ranges overlap, so the test cannot separate them. Every brand named in at least three answers is ranked. By engine has one dot per engine (ChatGPT, Google AI Overviews, Gemini and Google AI Mode), darker the more often it names the brand.

Most cited sources

Rank Source Type Cited in Engines Pages cited Brands its pages mention
1 youtube.com Social 45.8% 1 of 4 15 13
2 reddit.com Community 41.7% 1 of 4 9 12
3Withheld. Run a full Snapshot to see it.
4 ventureharbour.com Consultancy 25.0% 1 of 4 2 10
5 sequenzy.com Vendor site 20.8% 1 of 4 4 16
6Withheld. Run a full Snapshot to see it.
7Withheld. Run a full Snapshot to see it.
8Withheld. Run a full Snapshot to see it.
9Withheld. Run a full Snapshot to see it.
10 capterra.com Review site 8.3% 1 of 4 2 5

The questions, and who wins each

QuestionLanguageWins it
email marketing software with the best support English Constant Contact and Klaviyo, tied
which email marketing software do experts recommend English ActiveCampaign, Kit, Klaviyo and Mailchimp, tied

Each engine's top three

Method

Each month Heralded asks every engine the same buyer questions, twice each, and reads every answer. An answer counts 0 for a brand it leaves out, 50 for a brand it names and 100 for a brand it recommends, and the Heralded Score is built from those. A brand named in at least three answers gets a score and a place.

How the leaderboards are measured