KnowBe4 vs Mimecast: Which Cybersecurity Is Better in 2026?
Compare pricing, features, integrations, verified reviews, AI capabilities, security, and customer satisfaction — side by side, with no marketing spin.
The Short Answer
KnowBe4 vs Mimecast, in 15 seconds
Choose KnowBe4 if…
- You want to trial before paying
Choose Mimecast if…
- You prefer Mimecast's approach and ecosystem
Head-to-Head Scorecard
How KnowBe4 and Mimecast score
KnowBe4 leads on 1 of 9 measured dimensions.
- Even
Customer Rating
Average score from verified user reviews
KnowBe4No reviewsMimecastNo reviews - Even
Review Volume
Number of verified reviews — a proxy for adoption
KnowBe40Mimecast0 - Even
Entry Pricing
Lowest published starting price (free plan = lowest)
KnowBe4CustomMimecastCustom - KnowBe4
Free Access
Availability of a free plan and/or free trial
KnowBe4Free trialMimecastPaid only - Even
Integrations
Number of listed third-party integrations
KnowBe46Mimecast6 - Even
Features
Number of listed product capabilities
KnowBe40Mimecast0 - Even
AI Features
Capabilities mentioning AI, automation or ML
KnowBe4—Mimecast— - Even
Security & Compliance
Number of listed compliance certifications
KnowBe43Mimecast3 - Even
Platforms & Deployment
Supported platforms and deployment options
KnowBe43Mimecast3
Feature Comparison
KnowBe4 vs Mimecast feature breakdown
Search or filter the full feature matrix — core features, AI, integrations, APIs, security and compliance.
KnowBe4
MimecastPricing Comparison
KnowBe4 vs Mimecast pricing
Entry pricing, plan tiers and the cost factors that shape total cost of ownership.
KnowBe4
Custom to start- Phishing report button
- Automated phishing simulations
- Security awareness training library
- Phish-prone reporting
- Advanced simulations and AI
- Priority support
- PhishER email management
- Custom training and branding
Mimecast
Custom to start- URL and attachment defense
- Reporting
- Impersonation protect
- Threat protection
- Awareness training
- Email continuity
- Archiving and e-discovery
- DMARC
Total cost of ownership factors
Beyond list price, factor in implementation, training, add-ons and per-seat scaling when estimating total cost of ownership.
Pros & Cons
KnowBe4 vs Mimecast: strengths and trade-offs
KnowBe4
Pros
- Free trial offered
- Compliance: SOC 2 Type II, ISO 27001, GDPR
- Public API available
Cons
- No free plan
- Pricing is quote-based (less transparent)
Mimecast
Pros
- Compliance: SOC 2, GDPR, ISO 27001
- Public API available
Cons
- No free plan
- No free trial
- Pricing is quote-based (less transparent)
Buyer Fit
Who should use KnowBe4 vs Mimecast?
Startups
Either
Either keeps early-stage costs lowest with its entry tier.
Small businesses
Either
Either offers the most accessible pricing for lean teams.
Agencies
Either
Either connects to more tools for multi-client workflows.
Enterprises
Either
Either leads on compliance and breadth for complex needs.
Ecommerce
Either
Either integrates with more of the commerce stack.
SaaS companies
Either
Either is the more developer- and automation-friendly choice.
Integration overlap
Shared integrations (4)
Only in KnowBe4 (2)
Only in Mimecast (2)
Keep Exploring
Other alternatives worth considering
Similar cybersecurity products buyers compare alongside KnowBe4 and Mimecast.
Ask SIA which solution fits your business
SIA, Saaskart's AI buying assistant, weighs KnowBe4 and Mimecast against your team size, budget, integrations and compliance needs — then recommends the right fit and the questions to ask each vendor.
Get a personalised recommendationKnowBe4 vs Mimecast — Frequently Asked Questions
What is the difference between KnowBe4 and Mimecast?
KnowBe4 and Mimecast are both Cybersecurity solutions. KnowBe4 is rated 0.0/5 by 0 users, while Mimecast is rated 0.0/5 by 0 users. The main differences lie in pricing, features, and target audience.
Which is better, KnowBe4 or Mimecast?
Based on user ratings, KnowBe4 scores higher at 0.0/5. The best choice depends on your team size, budget, and specific requirements.
Which is cheaper, KnowBe4 or Mimecast?
Both products have custom pricing. We recommend contacting both vendors for a quote tailored to your team size.
Does KnowBe4 or Mimecast have a free plan?
Neither KnowBe4 nor Mimecast currently offers a free plan, but KnowBe4 provides a free trial.
Can I switch from KnowBe4 to Mimecast?
Switching between KnowBe4 and Mimecast is possible. Both support data export. Check integration compatibility and plan for data migration to minimise disruption to your team.
Who should use KnowBe4 vs Mimecast?
KnowBe4 is best suited for teams that prioritise enterprise features. Mimecast works well for teams needing advanced capabilities.
Our Verdict
The bottom line on KnowBe4 vs Mimecast
Best Overall
Either
It's a tie balances user satisfaction and proven adoption.
Best for Startups
Either
It's a tie has the friendliest entry point for new teams.
Best for Enterprise
Either
It's a tie leads on compliance and feature breadth.
Best Value
Either
It's a tie delivers the lowest cost to get started.
Best AI Features
Either
Comparable AI capabilities on both sides.
Highest Rated
Either
Both earn equal user ratings.