List of Security and Investigations Companies
Selling into Security and Investigations? Here are its companies, biggest first, including Metropolitan Protective Service, Inc., Ollivier Managed Security | Smart Site and PSA Security. Open a company to see its revenue range, headcount, tech stack and the people to contact.
Company NameIndustryLocationFundingRevenueEmployees
$1M - $10M
39
$10M - $25M
39
$1M - $10M
39
$1M - $10M
39
$1M - $10M
38
$10M - $25M
38
$1M - $10M
38
<$1M
38
$1M - $10M
38
$1M - $10M
38
$1M - $10M
38
$10M - $25M
38
$1M - $10M
38
$1M - $10M
38
$1M - $10M
38
$1M - $10M
37
$15M
$1M - $10M
37
$1M - $10M
37
$10M - $25M
37
$10M - $25M
37
$1M - $10M
37
$1M - $10M
37
$1M - $10M
37
$1M - $10M
37
$1M - $10M
37
$94M
$1M - $10M
37
$10M - $25M
37
<$1M
37
$25M - $50M
37
$1M - $10M
37
$1M - $10M
37
$1M - $10M
36
$1M - $10M
36
$1M - $10M
36
$1M - $10M
36
$1M - $10M
36
$31M
$1M - $10M
36
$1M - $10M
36
$25M - $50M
36
$1M - $10M
36
$5M
$1M - $10M
36
$1M - $10M
36
$10M - $25M
36
$1M - $10M
36
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$10M - $25M
35
$1M - $10M
35
$100M - $250M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$10M - $25M
35
$1M - $10M
35
$2M
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
35
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$1M - $10M
34
$10M - $25M
34
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$10M - $25M
33
$10M - $25M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
$1M - $10M
33
About Security and Investigations companies
Which Security and Investigations companies are listed?
Security and Investigations companies of every size, from enterprises to startups, sorted by headcount so the biggest accounts come first. Companies on the list include Metropolitan Protective Service, Inc., Ollivier Managed Security | Smart Site and PSA Security. Every company profile gives you revenue range, headcount, headquarters, tech stack and an employee directory with verified emails and phone numbers.
Where are Security and Investigations companies located?
Security and Investigations companies are most often headquartered in the United States, the United Kingdom, Canada, Australia, the Netherlands and France.
What technologies do Security and Investigations companies use?
The tools most often found in the tech stacks of Security and Investigations companies include WordPress, Microsoft 365, Amazon Web Services, Google Cloud, Shopify and Google Workspace. Useful if you integrate with, complement or compete with one of them.
How do I reach decision makers at Security and Investigations companies?
Open a company to see its employee directory and email format, then use LeadIQ to get verified work emails and phone numbers for the people you want to reach and push them straight to your CRM or sequencer.
Insights based on LeadIQ data refreshed in September 2026.
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