EpsilonUnlock marketing's full potential

MailjetDesign, deliver, and automate marketing and transactional emails together

Comparison · Email Marketing · weekly run Nov 2

Epsilon vs Mailjet

Which one do AI engines recommend, and how do they differ on price, fit and features?

The short answer

Mailjet is the stronger AI pick in Email Marketing: it has a visibility score of 3.8 versus 0.9 for Epsilon, and ranks ahead in 0% of the answers that name both.

Choose Epsilon if…

You need SOC 2 audit for parts of the business coverage
You prefer a larger, established vendor (5,000+ employees)
flexible technology for high-volume programs
campaign operations, strategy, and creative services

Choose Mailjet if…

You want the brand AI engines rank higher (3.8 vs 0.9)
You need ISO 27701 or SOC 2 or GDPR or CCPA or PCI DSS or CSA STAR Level 1 or HIPAA or Certified Senders Alliance coverage
straightforward annual pricing discount

AI visibility side by side

Latest weekly run · Nov 2

Metric	Epsilon	Mailjet
Visibility score	0.9%	3.8%
Change vs last week	New	New
Rank in Email Marketing	#35	#19
Share of voice	0.2%	1.7%
Mentions this run	1	9
Positive in AI answers	—	0%

The stronger value in each row is marked with a ✓.

Visibility score trend

Weekly runs over the last 60 days

Epsilon 0pp · Mailjet 0pp over 0 weekly runs.

Engine by engine

Mailjet leads on 3 of 3 engines

ChatGPT

0.9%

AI Mode

1.1%

Perplexity

2.6%

9.3%

EpsilonMailjet

Head to head in AI answers

1 engine answers name both brands

1Epsilon ranked higher

0Mailjet ranked higher

Prompt	Engine	Epsilon	Mailjet
Which Email Marketing vendors do analysts recommend?	Perplexity	#3	#11

Features, pricing & fit

Dimension	Epsilon	Mailjet
Pricing model	—	Flat tiers
Entry price	—	Free; paid from $9 / mo
Free plan	—	Yes
Deployment	—	Cloud-hosted in EU data centers
Integrations	—	100+
Compliance	ISO 27001, SOC 2 audit for parts of the business	ISO 27001, ISO 27701, SOC 2, GDPR, CCPA, PCI DSS, CSA STAR Level 1, HIPAA, Certified Senders Alliance
Support	—	Online support, Priority support (Premium plan), Phone and chat support (from 50k plan), Dedicated Technical Account Manager (Custom plan)
Founded	1969	2010
Headquarters	Irving, Texas, United States	Paris, France
Employees	5,000+	51–200
Funding	—	Series Unknown (investment by Entrepreneur Venture, amount undisclosed)
Best for	Brands that want personalized, omnichannel marketing run at individual level and at scale	Marketing and development teams that want marketing and transactional email on one platform