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Companies using Microsoft Security Essentials

As of 14 October 2026, Firmable tracks 21 companies across 13 countries running Microsoft Security Essentials. See who they are, and who to call.

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Companies using Microsoft Security Essentials

Showing 1 of 21 companies

PC Innovation

pcinnovation.ca · IT consulting and support services · 1–10 employees

Last seen 23 Jul 2026 The most recent date Firmable detected Microsoft Security Essentials at this company.

Decision makers · 1 on file Senior people on file at this company. Firmable holds their names, emails and mobiles.

None on file

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Signals Recent events at this company, such as a leadership change, funding or a new office.

No signals recorded

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Who uses Microsoft Security Essentials

A breakdown of the 21 companies running Microsoft Security Essentials.

Top industries

Information technology and services10
Construction and building2
Media and telecommunications2
Retail trade2
Education and training1
Financial services1
Professional and business services1
Transport1

No industry recorded: 1

Company size

1–103 (27%)
11–501 (9%)
51–2501 (9%)
501–1,0001 (9%)
5,001–10,0001 (9%)
10,001+4 (36%)

Share of companies with a recorded size, by employees.

No size recorded: 10

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Frequently asked questions

About the Microsoft Security Essentials data on this page.

How many companies use Microsoft Security Essentials?

Firmable holds confirmed Microsoft Security Essentials detections for 21 distinct companies, 8 of them confirmed in the last 90 days. A company is counted once however many of its properties run it.

Which companies use Microsoft Security Essentials?

PC Innovation are among the most prominent in the current set.

What industries use Microsoft Security Essentials?

Information technology and services, construction and building and media and telecommunications lead the set, across 9 industries in total.

What size companies use Microsoft Security Essentials?

Adoption concentrates in the 10,001+ employee band, across the companies whose size is recorded.

Where are Microsoft Security Essentials users based?

The United States, Canada, the Philippines and Australia account for most detections, across 13 countries.

How current is this data?

8 companies were confirmed in the last 90 days. Last detection 12 September 2026.

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