Mimecast users list

Email list of companies using Mimecast

Q: How many companies use Mimecast?

Data InfoMetrix tracks 13,235 companies using Mimecast, with 97,930 verified contacts at those accounts as of October 2026. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Q: Who buys and manages Mimecast inside a company?

Mimecast is usually owned by Email Security, Cyber Resilience & Archiving Leadership. Decision-makers include Chief Information Security Officer (CISO), Director of IT and VP Information Security; Lead Messaging Engineer and M365 Systems Administrator shape the choice, and Email Security Analyst and IT Systems Administrator use it day to day. Our Mimecast list can include any of these roles.

Q: Which Mimecast products or editions can I target?

You can target accounts by the Mimecast products they run, including Mimecast Email Security Cloud Gateway (TTP), Mimecast Cloud Archive & eDiscovery, Mimecast DMARC Analyzer & Brand Protection, Mimecast Cyber Recovery & Mail Continuity and Mimecast Awareness Training (CATA). Tell us which edition or module matters and we filter the list to those accounts.

Q: What does Mimecast integrate with?

Mimecast is most often connected to Microsoft 365, Splunk, Okta, CrowdStrike and ServiceNow, so users of those tools overlap heavily with Mimecast accounts. We can filter any list by this kind of stack overlap.

Q: What are the main alternatives to Mimecast?

The main alternatives to Mimecast are Proofpoint, Microsoft Defender for Office 365, Abnormal Security and Barracuda Sentinel. We also keep verified user lists for Proofpoint and Abnormal Security, which is useful for competitive displacement campaigns.

Q: What challenges do Mimecast customers face?

Common challenges for Mimecast accounts include Security Gateway vs. Cloud Archiving vs. Continuity Split, Mid-Market to Enterprise IT Decision-Maker Dynamics and Co-Existing Microsoft 365 Architecture. Enterprises often rely on Mimecast primarily for compliance archiving and high-availability continuity rather than pure threat detection. Knowing their primary license focus ensures your pitch hits home. These are good angles for outreach to Mimecast users.

Q: Can Data InfoMetrix deliver a free sample Mimecast contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Mimecast criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

Q: How does Data InfoMetrix guarantee email deliverability for Mimecast contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Mimecast datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Access verified CISOs, Messaging Security Leads, and IT Directors at organizations protected by Mimecast Email Security Cloud — segmented across Targeted Threat Protection (TTP), Cloud Archiving, and Awareness Training.

13,235+Companies

97,930+Contacts

Updated Oct 7, 2026GDPR · CCPA99% accuracy

See sample data

Free Mimecast count + 10 sample records

13,235+ companies · 97,930+ contacts available

✓Exact count for your titles, regions and company size
✓10 verified sample records to check quality
✓Price quote within 1 business day

Trusted by B2B and enterprise revenue teams

How many companies use Mimecast?

Data InfoMetrix tracks 13,235+ companies running Mimecast as of October 2026, with 97,930+ verified contacts at those accounts. The largest groups are Financial Services & Banking, Healthcare & Hospital Networks and Technology & Cloud SaaS. Buying decisions usually sit with the Chief Information Security Officer (CISO), Director of IT and VP Information Security. Counts are estimates built from technology footprint scans, job-post signals and partner directories, checked by our research team. How we count

Tracked accounts13,235+

Organizations detected running Mimecast.

Verified contacts97,930+

Direct emails and phone dials for decision-makers.

Primary personasChief Information Security Officer (CISO), Director of Information Technology & Security, VP of Infrastructure & Messaging

Full buying committee mapped.

Deliverability SLA99%

SMTP-verified, with 1:1 replacement of any email that hard bounces within 30 days.

Data specification · Updated Q4 2026

Technology category	Cybersecurity
Tracked organizations	13,235+ verified accounts worldwide
Decision-maker contacts	97,930+ records with emails, mobile and direct dials
Key roles	Chief Information Security Officer (CISO), Director of Information Technology & Security, VP of Infrastructure & Messaging, platform administrators, IT directors, procurement
Geography	180+ countries · country-by-country counts on request
Verification	DNS and script telemetry, 5-stage SMTP handshake, manual research
Refresh cadence	Continuous, 30–45 day maximum record age at delivery
Compliance	GDPR, CAN-SPAM, CCPA and CASL
Delivery	24–48 hours as CSV, XLSX or CRM API

Editorial & verification

Researched by the Data InfoMetrix research team. Counts updated October 2026.

How we count and verify data

Size your Mimecast audience

Pick a region, company size and buying role to estimate how many accounts and contacts you can reach.

Region

Company size

Buying role

Estimated segment✓ 99% SLA

13,235+Target accounts

97,930+Direct contacts

Decision-makers35%

Influencers45%

End users20%

Estimates from our current Mimecast dataset. Exact counts come with your quote.

Reach the whole buying committee

A Mimecast account is not one contact. We map the people who evaluate, buy, run and use it across Email Security, Cyber Resilience & Archiving Leadership.

Decision-makersC-suite & sponsors

Chief Information Security Officer (CISO)Director of ITVP Information SecurityHead of Messaging Architecture

Influencers & adminsEvaluate & configure

Lead Messaging EngineerM365 Systems AdministratorCompliance & Legal eDiscovery LeadSecOps Manager

End usersRun it every day

Email Security AnalystIT Systems AdministratorHelpdesk SupervisorSOC Specialist

These are examples. We build records for any department, seniority or custom title.

See exactly what you get

Every record carries 60+ fields, from verified email, direct dial and LinkedIn to full postal address, Mimecast edition, coexisting stack and intent.

Contact	Buying role	Work email	Direct dial	Company phone	Fax	LinkedIn profile	Company	LinkedIn company page	Industry	Address 1	Address 2	City	State	ZIP code	Country	Mimecast footprint	Intent	Status
SRSophia ReyesChief Information Security Officer (CISO)	Decision Maker	s.r***@apexc**.io	+1 (415) 55*-**	+1 (415) 55*-**	+1 (415) 55*-**	linkedin.com/in/s*ia-r*******	Apex Cloud Systems Inc.	linkedin.com/company/apex-cloud-sys	Enterprise Software & Cloud SaaS	100 Montgomery St	Ste 1800	San Francisco	CA	94104	United States	Mimecast Email Security Cloud Gateway with Targeted Threat Protection (TTP)	High	✓ Verified 2026
MWMarcus WebbLead Enterprise Security Architect	Influencer	m.w*@kensington*******.uk	+44 (20) 79*-**	+44 (20) 79*-**	+44 (20) 79*-**	linkedin.com/in/m*us-w*****	Kensington Global Capital Ltd	linkedin.com/company/kensington-capital	Financial Services & Investment Banking	25 Bank Street	Canary Wharf	London	Greater London	E14 5JP	United Kingdom	Mimecast Cloud Archive & eDiscovery Compliance	Medium	✓ Verified 2026
LFLena FischerSenior Security Operations (SecOps) Engineer	Practitioner	l.fi***@stackla****.de	+49 (89) 55*-**	+49 (89) 55*-**	+49 (89) 55*-**	linkedin.com/in/la-fi*******	StackLabs Cybersecurity GmbH	linkedin.com/company/sta***-cyber	Cloud Infrastructure & Cybersecurity Platforms	Leopoldstraße 180	—	Munich	Bavaria	80804	Germany	Mimecast Cyber Recovery & High-Availability Mail Continuity	High	✓ Verified 2026
JOJames O'ConnorVP of Information Security & Infrastructure	Decision Maker	j.oc**@veloce****.com	+1 (312) 55*-**	+1 (312) 55*-**	+1 (312) 55*-**	linkedin.com/in/j*s-oc******	Veloce Global Telecom Corp	linkedin.com/company/veloce-telecom	Telecommunications & Mobile Networks	233 S Wacker Dr	Ste 4200	Chicago	IL	60606	United States	Mimecast DMARC Analyzer & Brand Exploit Protection	High	✓ Verified 2026
ALAstrid LindholmHead of Cyber Risk & Security Governance	Influencer	a.li**@nordi**.se	+46 (8) 55*-**	+46 (8) 55*-**	+46 (8) 55*-**	linkedin.com/in/a*id-li******	Nordic Payments & FinTech AB	linkedin.com/company/nordicpay-ab	Financial Technology & Digital Payments	Hamngatan 15	—	Stockholm	Stockholm County	111 47	Sweden	Mimecast Awareness Training (CATA Behavioral Analytics)	Medium	✓ Verified 2026
DVDavid VanceChief Information Officer (CIO)	Decision Maker	d.va**@beacond****.com	+1 (703) 55*-**	+1 (703) 55*-**	+1 (703) 55*-**	linkedin.com/in/d*d-va******	Beacon Defense & Aerospace Inc.	linkedin.com/company/beacon-defense	Aerospace, Defense & Government Contracting	1850 Towers Crescent Plaza	—	Tysons	VA	22182	United States	Mimecast Federal Cloud Archiving & Protection	High	✓ Verified 2026
RGRachel Green-CohenDirector of Enterprise Security Architecture	Influencer	r.co**@veritas****.org	+1 (617) 55*-**	+1 (617) 55*-**	+1 (617) 55*-**	linkedin.com/in/r*el-co******	Veritas Health System Inc.	linkedin.com/company/veritas-health-sys	Healthcare Networks & Hospital Systems	75 Francis St	—	Boston	MA	02115	United States	Healthcare HIPAA Encrypted Email & Archive Vault	Medium	✓ Verified 2026
YTYuri TanakaSecurity Operations & Threat Analyst	Practitioner	y.ta**@biosynth*****.jp	+81 (3) 55*-**	+81 (3) 55*-**	+81 (3) 55*-**	linkedin.com/in/yi-ta******	BioSynthetix Life Sciences KK	linkedin.com/company/biosynthetix-kk	Biotechnology & Pharmaceutical Research	Roppongi Hills Mori Tower	30F	Tokyo	Tokyo	106-6108	Japan	Mimecast URL Protect & Attachment Sandboxing	Medium	✓ Verified 2026

Illustrative rows showing 20 of 60+ fields. Full records are unmasked.

We deliver 60+ data fields per record, including intent data. The sample shows a selection only. Tell us which fields you need, including any that aren't listed here, and we'll add them to your list.

Also available:Seniority & departmentJob functionTenure in roleEmployee countAnnual revenueSIC & NAICS codesParent companyWebsite & domainProduct editionContract & renewal timingIntent topics & scoreEmail verification date

How we prove an account runs Mimecast

No scraped résumés or stale directories. Three layers confirm a live installation before a contact reaches your list. Read our verification protocol

Pillar 1 · Telemetry

Live DNS & script signals

We inspect response headers, DNS MX and CNAME records and live JavaScript bundles to confirm a running Mimecast instance.

DNS · CNAME · MX recordsHTTP headers · JS bundles✓ Verified against live infrastructure

Pillar 2 · Operational intent

90-day hiring signals

We track job requisitions that ask for Mimecast skills, which shows ongoing budget and headcount.

Now hiringMimecast Administrator

Now hiringMimecast Architect

Now hiringMimecast Engineer

Pillar 3 · Human & mailbox QA

Pre-delivery SMTP handshake

Each email is tested against the destination mail server, and titles are checked against current company rosters.

SMTP check ✓LinkedIn match ✓Title verified ✓

✓ Deliverable inbox and current role

Deliverability SLA

<3%

Maximum bounce rate, or we replace the contacts. Your sender reputation stays clean.

1:1 hard bounce replacement

Every email that hard-bounces within 30 days of delivery is replaced free, record for record.

24-hour pre-delivery ping

Live SMTP and MX checks right before we send your file.

Instant CRM import

Clean CSV or XLSX, ready for one-click import.

Ready for your outbound stack

Imports straight into the tools you use.

What are you trying to do?

Each campaign needs a different data strategy. Pick your goal to see how we build the audience.

Find companies on rival platforms and reach the people evaluating a move to, or away from, Mimecast.

Conquesting playbook

Pitch integrations, add-ons and complementary tools to companies already running Mimecast.

Ecosystem playbook

Build account lists around Mimecast deployment scale and engage the full committee across departments.

ABM playbook

Conquesting audienceSample

Proofpoint

Microsoft Defender for Office 365

Abnormal Security

→

Mimecast

Know the stack around every account

Mimecast rarely runs alone. Every record is tagged with the tools detected alongside it, so you can segment by complementary stacks.

Open the coexistence matrix

What Mimecast customers look like

Anonymised profiles of companies in our Mimecast dataset of 13,235+ accounts. Named accounts are shared in your free sample, never on a public page.

Mimecast account profiles · anonymised

Company size	Industry	Country	Employees	Revenue
Enterprise	Critical Infrastructure & Energy	United States	10,000+	$5B+
Mid-market	Retail & Consumer Goods	Australia	500–999	$100M–$250M
Mid-market	Financial Services & Banking	United States	200–999	$50M–$250M
Enterprise	Healthcare & Hospital Networks	United States	5,000+	$1B+
Upper mid-market	Technology & Cloud SaaS	United Kingdom	1,000–4,999	$250M–$1B
SMB	Critical Infrastructure & Energy	United States	50–199	$10M–$50M
Enterprise	Retail & Consumer Goods	Canada	10,000+	$5B+
Mid-market	Financial Services & Banking	Germany	500–999	$100M–$250M

Markets we cover

United States

India

United Kingdom

Canada

Germany

Australia

Singapore

France

New Zealand

Netherlands

Plus 170 more countries. Ask for a country-by-country count of Mimecast accounts and we'll include it with your free sample.

Build the list your way

Every list is assembled from source to your product tier, job function, geography and revenue band. Nothing is a fixed export.

Editions & modules

Filter by what they actually run.

+Mimecast Email Security Cloud Gateway (TTP)+Mimecast Cloud Archive & eDiscovery+Mimecast DMARC Analyzer & Brand Protection+Mimecast Cyber Recovery & Mail Continuity+Mimecast Awareness Training (CATA)

Firmographics

Match revenue, size and industry.

+Industry+$1M–$10B+ revenue+Headcount+Ownership & funding+HQ & branches

Geography

Target any territory.

+US & Canada+US states+UK, DACH, Nordics+APAC & ANZ+Metro clusters

Need multi-attribute segments? Open the Audience Builder

What Mimecast teams are struggling with

Know the friction before you reach out, and position your product where it matters.

Friction 1

Alert Fatigue & SOC Staff Burnout in Mimecast Security Stacks

ImpactSecurity Operations Centers get overwhelmed by 10,000+ daily alerts, risking missed zero-day incidents.

OpportunitySOAR automation, AI-driven alert triage, and Managed Detection and Response (MDR) services.

Friction 2

Identity Sprawl & Unmanaged SaaS App Access

ImpactTerminated employees retain shadow access to sensitive cloud software, causing compliance breaches.

OpportunityIdentity Threat Detection (ITDR), SCIM deprovisioning tools, and SaaS Security Posture Management (SSPM).

Friction 3

Continuous Compliance Audit Evidence Gathering

ImpactSecurity teams spend 2+ months annually collecting audit evidence manually for SOC 2 and ISO 27001 certifications.

OpportunityContinuous compliance automation platforms, cloud security posture management (CSPM), and evidence automation.

Intent triggers we track

✓Active software contract renewal window within 90 days

✓Evaluating complementary third-party integration solutions

✓Expanding enterprise license tiers and department headcount

✓Upgrading data security and regulatory compliance standards

“Instead of waiting at a booth hoping for foot traffic, our reps arrived at the summit with a fully booked calendar of qualified buying committees. It transformed our event ROI.”

VP of Global Marketing, a cybersecurity vendorName withheld at the client's request

Read the 45 Briefings case study

Mimecast list questions, answered

How many companies use Mimecast?

Data InfoMetrix tracks 13,235 companies using Mimecast, with 97,930 verified contacts at those accounts as of October 2026. Counts are estimates from our database and market research, so ask us for a live count for your exact criteria.

Who buys and manages Mimecast inside a company?

Mimecast is usually owned by Email Security, Cyber Resilience & Archiving Leadership. Decision-makers include Chief Information Security Officer (CISO), Director of IT and VP Information Security; Lead Messaging Engineer and M365 Systems Administrator shape the choice, and Email Security Analyst and IT Systems Administrator use it day to day. Our Mimecast list can include any of these roles.

Which Mimecast products or editions can I target?

You can target accounts by the Mimecast products they run, including Mimecast Email Security Cloud Gateway (TTP), Mimecast Cloud Archive & eDiscovery, Mimecast DMARC Analyzer & Brand Protection, Mimecast Cyber Recovery & Mail Continuity and Mimecast Awareness Training (CATA). Tell us which edition or module matters and we filter the list to those accounts.

What does Mimecast integrate with?

Mimecast is most often connected to Microsoft 365, Splunk, Okta, CrowdStrike and ServiceNow, so users of those tools overlap heavily with Mimecast accounts. We can filter any list by this kind of stack overlap.

What are the main alternatives to Mimecast?

The main alternatives to Mimecast are Proofpoint, Microsoft Defender for Office 365, Abnormal Security and Barracuda Sentinel. We also keep verified user lists for Proofpoint and Abnormal Security, which is useful for competitive displacement campaigns.

What challenges do Mimecast customers face?

Common challenges for Mimecast accounts include Security Gateway vs. Cloud Archiving vs. Continuity Split, Mid-Market to Enterprise IT Decision-Maker Dynamics and Co-Existing Microsoft 365 Architecture. Enterprises often rely on Mimecast primarily for compliance archiving and high-availability continuity rather than pure threat detection. Knowing their primary license focus ensures your pitch hits home. These are good angles for outreach to Mimecast users.

Can Data InfoMetrix deliver a free sample Mimecast contact list before ordering?

Yes. Data InfoMetrix delivers a complimentary 10-record sample tailored to your target Mimecast criteria—including target job titles, company size, and region—delivered within one business day with no obligation.

How does Data InfoMetrix guarantee email deliverability for Mimecast contacts?

Data InfoMetrix provides a 99% email deliverability guarantee on all Mimecast datasets. Every contact record undergoes real-time email verification within a 30 to 45-day refresh cycle, backed by a 1:1 hard bounce replacement policy for 30 days after delivery.

Sourcing and compliance. Business contacts come from public company sources, professional directories and opt-in publishing partners, then go through SMTP verification and human review. Lists are for B2B outreach: include an unsubscribe link and honour opt-outs (CAN-SPAM), and have a lawful basis such as legitimate interest when you email people in the EU or UK (GDPR). Read how we source and verify data