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Epsilon

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Email MarketingIrving, Texas, United States5,000+ employeesFounded 1969

#35 of 55 in Email Marketing

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Visibility score
0.9%
New vs last week
Weekly run · Nov 2

Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run

  • Epsilon ranks #35 of 55 in Email Marketing with an AI visibility score of 0.9 (SlateIndex, Nov 2, 2026).
  • Epsilon is most visible on Perplexity (2.6) and least on Google AI Mode (0).
  • AI engines name Epsilon in 1 of the 30 Email Marketing buyer prompts SlateIndex tracks.
  • forrester.com is the source AI engines cite most in answers about Epsilon, with 2 citations.

About

Company details for Epsilon

Epsilon provides data, technology and services for brand marketing. Its PeopleCloud Messaging product sends email, SMS, mobile push and in-app messages with segmentation, personalization and automation. The platform uses identity and AI to recognize individuals across channels, create a relevant message for each one, and learn from each interaction. Epsilon is part of Publicis Groupe, which acquired it in 2019. It ranks #35 of 55 in Email Marketing on SlateIndex and has a visibility score of 0.9 in the latest weekly run.

Founded in 1969 and headquartered in Irving, Texas, United States, the company employs 5,000+ people. Its differentiator: outcome-based marketing built on person-level identity across every channel.

Categories
Email Marketing
Company size
5,000+ employees
Headquarters
Irving, Texas, United States
Founded
1969
Company type
Division of Publicis Groupe
Compliance
ISO 27001, SOC 2 audit for parts of the business
X (Twitter) · twitter.com/epsilonmktgLinkedIn · linkedin.com/company/epsilonFacebook · facebook.com/EpsilonMarketing

Read from linkedin.com, neverbounce.com, g2.com, twitter.com, epsilon.com, gartner.com · refreshed Nov 2, 2026.

AI visibility

Latest weekly run · Nov 2 · next run Nov 9

Visibility score
0.9%
across Email Marketing answers, weighted by position
ChatGPT0%
AI Mode0%
Perplexity2.6%
Change
New
vs last week’s run
Category rank
#35 of 55
in Email Marketing
Mentions
1
in this week’s run
Share of voice
0.2%
of AI mentions in Email Marketing

Visibility score trend

Weekly runs over the last 60 days, with up to 7 competitors. Click a name to hide or show its line.

Now0.9%
30-day change—
High · low0.9% · 0.9%
Rank#35
0%25%50%75%100%Nov 2Epsilon 1%

Changes appear after the second weekly run in Email Marketing. Mailchimp leads the category at 45.4%.

Media

Website and product screenshots for Epsilon

All media
Home page

AI mentions & citations

Recent answers that name Epsilon

All prompts

Which Email Marketing vendors do analysts recommend?

Epsilon — Recommended for high-volume programs requiring flexible technology plus campaign operations, strategy, and creative services.

Perplexity · run of Nov 2

Products & features

What Epsilon sells

PeopleCloud Messaging

Sends messages across email, SMS, mobile push and in-app channels, with segmentation, personalization and automation.

Strengths engines cite

  • flexible technology for high-volume programs
  • campaign operations, strategy, and creative services

Target market & buyers

Brands and marketers

Competitive landscape

How Epsilon compares with its top three alternatives

All alternatives

Epsilon most often appears alongside Salesforce, Mailchimp, ActiveCampaign in AI answers.

vsEpsilon vs Salesforce0.9% vs 46.2% visibility · Salesforce leadsFull comparison vsEpsilon vs Mailchimp0.9% vs 45.4% visibility · Mailchimp leadsFull comparison vsEpsilon vs ActiveCampaign0.9% vs 44% visibility · ActiveCampaign leadsFull comparison
BrandVisibilityShare of voicevs last weekStarting price
Epsilon0.9%0.2%NewPricing not available
Salesforce46.2%9.6%NewPricing not available
Mailchimp45.4%9.6%NewFree plan
ActiveCampaign44%9.3%NewContact sales
Brevo41.2%9.9%NewFree plan

Cite as: SlateIndex, “Epsilon AI visibility profile”, https://slateindex.ai/brand/epsilon, data of Nov 2, 2026. Licence: CC BY 4.0.