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Security Industry Specialists, Inc.

Security Industry Specia... Market Share Analysis for November 2025

SIS provides innovative, tailored physical security solutions for world-class clients.

Law and Government > Government

Domainsis.gov.uk

Year Founded1999

Employees5001 - 10000

Annual Revenue> $1B

Security Industry Specialists, Inc.

Security Industry Specialists, Inc. (including company regionals)

sis.gov.uk

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Security Industry Specialists, Inc. Revenue up to November 2025 is > 1B

revenue generated by Security Industry Specialists, Inc. top domains

Security Industry Specialists, Inc. top domains revenue over 3 years

Revenue for Security Industry Specialists, Inc. top domains

sis.gov.uk> 1B

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Total visits to Security Industry Specialists, Inc.'s top domains

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Total visits last 3 months

Subsidiaries Breakdown

sis.gov.uk168.1K

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Avg. visit duration in Security Industry Specialists, Inc.'s top domains

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Average visit duration last 3 months

Subsidiaries Breakdown

sis.gov.uk00:01:06

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Avg. pageviews on Security Industry Specialists, Inc.'s top domains

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Average page views last 3 months

Subsidiaries Breakdown

sis.gov.uk2.27

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Security Industry Specialists, Inc. top competitors by domain

Top similar sites in November 2025, ranked by their affinity

mi5.gov.ukCompany NameMI5Employees5001 - 10000HQUnited Kingdom, LondonAnnual revenue$10M - $15MTotal visits264.4KLaw and Government > Government

Top technologies used by Security Industry Specialists, Inc.

These are the website technologies, by industry, used by Security Industry Specialists, Inc. top domains

Payment & Currencies (22)

PayPal

Advertising (2)

DoubleClick

Audio Video Media (2)

Vimeo

Conversion & Analytics (2)

Google Analytics

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5

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News & Signals from Security Industry Specialists, Inc.

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NewsSecret Intelligence Service launched dark web portal on Sep 1st '25.Also offering a version for Russian-speaking users was another September press release from MI6, which announced the creation of Silent Courier, a new dark web portal to support the recruitment of spies for the UK.

NewsSecret Intelligence Service launched Silent Courier on Sep 1st '25.In September, MI6 launched Silent Courier, a secure messaging platform on the dark web, enabling spies to anonymously upload information useful to British intelligence from anywhere in the world.

NewsSecret Intelligence Service launched online portal on Jan 1st '25.Earlier this year, MI6 launched an online portal aimed at using the dark web to entice potential spies to send secrets, particularly targeting Russia.