Sites like Mimecast

01 · Entity

About Mimecast

Mimecast mimecast.com

Human Risk Management & Advanced Email Security | Mimecast

Protect email and collaboration tools with Mimecast. Manage human risk and stay ahead of cyber threats with advanced security solutions.

Wikidata: Jersey-domiciled information technology company

Top 10K · #3,488 English 12 technologies Crawled Nov 6, 2026

Visit Mimecast

Summary by Claude

Mimecast sells cloud email security software that protects business email and collaboration tools from phishing and malware. It also offers security awareness training, data loss prevention (Incydr), and email/communications archiving and compliance.

Who it’s for

Businesses and enterprise IT security teams

Business model

Software subscriptions

• email security
• email threat protection
• phishing protection
• security awareness training
• data loss prevention
• email archiving
• digital communications governance
• insider risk management
• AI tool governance

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Mimecast’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   Proofpoint proofpoint.com Top 10K

   Cybersecurity Firm

   • Atlassian
   • DocuSign
   • GlobalSign
   • Google Search Console
   • Microsoft 365
   • OpenAI

   0 say Proofpoint is a good alternative to Mimecast 0 say Proofpoint isn’t a real alternative to Mimecast

   Comment
   Very close cos 0.899
2. 02
   Bitdefender bitdefender.com Top 10K English

   Bitdefender - Global Leader in Cybersecurity Software

   Bitdefender is a cybersecurity software leader delivering best-in-class threat prevention, detection, and response solutions worldwide.

   • Atlassian
   • DocuSign
   • Google Search Console
   • Google Tag Manager
   • Microsoft 365
   • OpenAI

   0 say Bitdefender is a good alternative to Mimecast 0 say Bitdefender isn’t a real alternative to Mimecast

   Comment
   Very close cos 0.897
3. 03
   KnowBe4 knowbe4.com Top 10K English

   KnowBe4 | Secure Your Digital Workforce: Human + AI

   Everything you need to reduce human risk and secure your agents all in one platform: Security Awareness Training, Email Security, Agent Security.

   • Atlassian
   • Google Search Console
   • Google Tag Manager
   • Microsoft 365
   • OpenAI
   • Adobe

   0 say KnowBe4 is a good alternative to Mimecast 0 say KnowBe4 isn’t a real alternative to Mimecast

   Comment
   Very close cos 0.894
4. 04
   McAfee mcafee.com Top 1K

   American global computer security software company

   • Atlassian
   • DocuSign
   • Google Search Console
   • Microsoft 365
   • Miro
   • OpenAI

   0 say McAfee is a good alternative to Mimecast 0 say McAfee isn’t a real alternative to Mimecast

   Comment
   Close cos 0.893
5. 05
   Zimperium zimperium.com Top 10K English

   Zimperium Mobile Security Solutions | Mobile Security for Apps & Devices

   Zimperium is the only mobile security platform purpose-built for enterprise, securing both mobile devices and applications so they can securely access data.

   • DocuSign
   • Google Search Console
   • Google Tag Manager
   • Microsoft 365
   • OpenAI
   • Akamai Edge DNS

   0 say Zimperium is a good alternative to Mimecast 0 say Zimperium isn’t a real alternative to Mimecast

   Comment
   Close cos 0.889
6. 06
   IBM ibm.com Top 1K English

   IBM

   For more than a century, IBM has been a global technology innovator, leading advances in AI, automation and hybrid cloud solutions that help businesses grow.

   • Atlassian
   • Google Search Console
   • Microsoft 365
   • Adobe
   • Adobe Experience Manager
   • Adobe Experience Platform Tags

   0 say IBM is a good alternative to Mimecast 0 say IBM isn’t a real alternative to Mimecast

   Comment
   Close cos 0.889
7. 07
   Trend Micro trendmicro.com Top 1K English

   Global Enterprise AI Cybersecurity Platform | Trend Micro

   Enterprise AI cybersecurity platform with layered protection, cyber risk exposure management and SecOps—62 global offices, the United States HQ office is in Texas.

   • Atlassian
   • DocuSign
   • GlobalSign
   • Google Search Console
   • Microsoft 365
   • Adobe

   0 say Trend Micro is a good alternative to Mimecast 0 say Trend Micro isn’t a real alternative to Mimecast

   Comment
   Close cos 0.889
8. 08
   Zscaler zscaler.com Top 10K English

   Leading Cloud Enterprise Security Provider for Zero Trust

   Zscaler is a leading cloud enterprise security provider helping global businesses adopt zero trust for secure digital transformation.

   • Atlassian
   • DocuSign
   • Google Search Console
   • Google Tag Manager
   • Microsoft 365
   • Miro

   0 say Zscaler is a good alternative to Mimecast 0 say Zscaler isn’t a real alternative to Mimecast

   Comment
   Close cos 0.889
9. 09
   Sophos sophos.com Top 1K English

   Sophos: Cyber Resilience for the Agentic AI Era

   Sophos Fusion is the industry’s most complete cyber defense system. It sees everything, connects everything, and enables your defenses to respond as one.

   • Atlassian
   • DocuSign
   • GlobalSign
   • Google Search Console
   • Google Tag Manager
   • Microsoft 365

   0 say Sophos is a good alternative to Mimecast 0 say Sophos isn’t a real alternative to Mimecast

   Comment
   Close cos 0.887
10. 10
    DefensX defensx.com Top 10K English

    DefensX | Secure Workspace

    DefensX offers a powerful secure browser and enterprise browser solution that protects users from web-based threats while enabling safe, compliant, and efficient browsing.

    • Atlassian
    • Google Search Console
    • Google Tag Manager
    • Microsoft 365
    • unpkg
    • Cloudflare

    0 say DefensX is a good alternative to Mimecast 0 say DefensX isn’t a real alternative to Mimecast

    Comment
    Close cos 0.884
11. 11
    Menlo Security menlosecurity.com Top 10K English

    Browser Security for Humans and Agents | Menlo Security

    Secure your agentic enterprise with the Menlo Browser Security Platform. Get zero-day threat prevention, secure access, and data security in one unified platform.

    • Atlassian
    • DocuSign
    • Google Search Console
    • Google Tag Manager
    • Amazon SES
    • Apple Business

    0 say Menlo Security is a good alternative to Mimecast 0 say Menlo Security isn’t a real alternative to Mimecast

    Comment
    Close cos 0.885
12. 12
    Comodo Group comodo.com Top 10K English

    Advanced Website Protection for Unmatched Cyber Defense

    Safeguard your devices with Comodo's advanced endpoint protection and protect your websites from malware and cyber threats. Secure your site now!

    • Google Search Console
    • Google Tag Manager
    • Microsoft 365
    • Bing Webmaster Tools
    • Font Awesome
    • Google Fonts

    0 say Comodo Group is a good alternative to Mimecast 0 say Comodo Group isn’t a real alternative to Mimecast

    Comment
    Close cos 0.885
13. 13
    Kaspersky kaspersky.com Top 1K English

    Kaspersky Cyber Security Solutions for Home and Business | Kaspersky

    Official Site – A Global Leader in next-generation cybersecurity solutions and services, Kaspersky offers premium protection against all cyber threats for your home and business.

    • DocuSign
    • Google Search Console
    • Google Tag Manager
    • Microsoft 365
    • Kameleoon
    • Next.js

    0 say Kaspersky is a good alternative to Mimecast 0 say Kaspersky isn’t a real alternative to Mimecast

    Comment
    Close cos 0.887
14. 14
    Fastmail fastmail.com English

    Email and calendar made better | Fastmail

    Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

    • Cloudflare
    • Fastmail

    0 say Fastmail is a good alternative to Mimecast 0 say Fastmail isn’t a real alternative to Mimecast

    Comment
    Close cos 0.884
15. 15
    Barracuda Networks barracuda.com Top 10K English

    Cybersecurity Solutions: Email, Apps, Network, Data | Barracuda Networks

    Barracuda Networks is the worldwide leader in Email Protection, Application Protection, Network Security, and Data Protection Solutions

    • Atlassian
    • Azure Front Door
    • Google Search Console
    • Google Tag Manager
    • Adobe Experience Manager
    • Adobe Experience Platform Tags

    0 say Barracuda Networks is a good alternative to Mimecast 0 say Barracuda Networks isn’t a real alternative to Mimecast

    Comment
    Close cos 0.882
16. 16
    DataDome datadome.co Top 10K English

    datadome.co

    cybersecurity company

    • Atlassian
    • DocuSign
    • Google Search Console
    • Microsoft 365
    • OpenAI
    • Apple Business

    0 say DataDome is a good alternative to Mimecast 0 say DataDome isn’t a real alternative to Mimecast

    Comment
    Close cos 0.881
17. 17
    Zendesk zendesk.com Top 1K German

    KI-gestützte Serviceplattform | Zendesk

    Mehr als Ticketvermeidung: KI-Agenten lösen Anfragen durchgängig. Verbessern Sie Servicequalität, Geschwindigkeit und Skalierung. Jetzt kostenlos testen.

    • Atlassian
    • DocuSign
    • Google Search Console
    • Google Tag Manager
    • Microsoft 365
    • Mimecast

    0 say Zendesk is a good alternative to Mimecast 0 say Zendesk isn’t a real alternative to Mimecast

    Comment
    Close cos 0.883
18. 18
    BI.ZONE bi.zone Top 10K English

    BI.ZONE: expert in digital risks management

    BI.ZONE is an expert in digital risks management. We protect hundreds of organizations from cyber threats

    • Google Search Console
    • Microsoft 365
    • PHP
    • Yandex Metrica

    0 say BI.ZONE is a good alternative to Mimecast 0 say BI.ZONE isn’t a real alternative to Mimecast

    Comment
    Close cos 0.877
19. 19
    Qualys qualys.com Top 10K

    Enterprise Cyber Risk and Security Platform | Qualys

    Discover how Qualys helps your business measure & eliminate cyber threats through a host of cybersecurity detection & remediation tools. Try it today!

    • DocuSign
    • Google Search Console
    • Microsoft 365
    • Adobe
    • Apple Business
    • Canva

    0 say Qualys is a good alternative to Mimecast 0 say Qualys isn’t a real alternative to Mimecast

    Comment
    Close cos 0.878
20. 20
    guard.io Top 10K English

    Guardio | Powerful Online Protection for Your Digital Life

    Protect all your devices online. Keep your personal and business data safe from phishing, malware, and identity theft. Get your free Guardio security scan today.

    • Google Search Console
    • Bing Webmaster Tools
    • Bootstrap
    • Cloudflare
    • Cookiebot
    • Google Analytics

    0 say guard.io is a good alternative to Mimecast 0 say guard.io isn’t a real alternative to Mimecast

    Comment
    Close cos 0.876

Ranked by score: the cosine similarity of each site’s vector to mimecast.com’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Mimecast uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Mimecast is built with, and what its closest competitors use, from its homepage’s code and its DNS records.