Security Guard Companies in New York City

New York State licenses guard agencies and registers guards. Most company pages say “New York City,” not specific boroughs, so ask about yours.

By Security Briefing, an independent publication. Details checked November 6, 2026. Listings are not endorsements.

ManhattanMost listed offices

BrooklynConfirm directly

QueensConfirm directly

The BronxConfirm directly

Staten IslandConfirm directly

Addresses below are on each company's page. A Manhattan office doesn't prove coverage in the other boroughs.

License details are as shown on each company's site. Please check them with the state. Alphabetical within each type, not a ranking. “Consider for” reflects services each company names, not our testing. BBB details come from its profile; Yelp scores from Yelp's search listing, for the location shown. A score from a few reviews says little. We don't rate companies ourselves. All entries checked November 6, 2026.
Company	Consider for	Documented location or service area	License on its site	Reviews	Official website
Dahlcore Office listed More about Dahlcore In its own words: “Based in Staten Island and founded in 2018 by an owner with over 23 years of security experience, Dahlcore delivers security guard services built on dedication, high quality, and professionalism.”	Offices and commercial property, events and venues, HOAs and residential property	250 Park Avenue New York, NY 10177	Not found	Yelp 5.0 out of 5 on Yelp 2 reviews Staten Island listing	Visit website
JC Protection Office listed More about JC Protection In its own words: “JC Protection LLC is a licensed, MBE-certified security company providing armed and unarmed security guard services across New York City, New Jersey, California, Arizona, and Texas.” Years in business: 8, per BBB Business type: Limited Liability Company (LLC), per BBB BBB accreditation: Not accredited, which BBB says is optional License shown on its site: License 11000239766	Offices and commercial property, events and venues, HOAs and residential property	1120 6th Ave 4th Floor, New York, NY 10036	License 11000239766	BBB A+ 0 complaints in 3 yrs Yelp View listing	Visit website
Prosegur Office listed More about Prosegur In its own words: “Based on 8th Avenue between the Garment District and Hudson Yards, our Manhattan team combines local supervision with the resources of a global security organization to help protect people, property, and operations.” License shown on its site: License: 11000224568	Offices and commercial property, events and venues, healthcare sites	505 8th Ave Suite 1103 Manhattan, NY 10018	License: 11000224568	Yelp View listing	Visit website
Security USA Office listed More about Security USA In its own words: “Security USA® has provided licensed security guard services across New York since 2001.” Years in business: 24, per BBB Business type: Corporation, per BBB BBB accreditation: Accredited License shown on its site: License: 11000033301	Offices and commercial property, healthcare sites, HOAs and residential property	336 West 37th Street, Suite 450, New York, NY 10018	License: 11000033301	BBB A+ Accredited · 0 complaints in 3 yrs Yelp 3.3 out of 5 on Yelp 7 reviews	Visit website
Stone Security Service Office listed More about Stone Security Service In its own words: “Hiring a security guard company for your business can provide benefits such as crime deterrence, emergency response, and peace of mind for employees and customers.”	Events and venues, personal protection, offices and commercial property	5 Penn Plaza – 23 Floor, New York, NY 10001	Not found	Yelp View listing	Visit website
Citadel Security Agency Says it serves the area More about Citadel Security Agency In its own words: “SECURITY AGENCYThe go-to provider for security guard services in New York City.”	Events and venues, retail stores, personal protection	“New York Hotel Security Services”	Not found	Yelp 4.6 out of 5 on Yelp 5 reviews	Visit website
Epic Security Says it serves the area More about Epic Security In its own words: “With our 24 Hour EPIC Command & Dispatch Center we are always ready to serve your security needs.” BBB accreditation: Not accredited, which BBB says is optional	Ask what it covers	“Professional Security Services \| New York, NY”	Not found	BBB Not rated 0 complaints in 3 yrs Yelp 1.0 out of 5 on Yelp 1 review	Visit website
GardaWorld Says it serves the area More about GardaWorld In its own words: “At GardaWorld Security New York City, we are proud to offer services dedicated to protecting people, property and businesses in the New York City region.” License shown on its site: License Number: 1261467	Offices and commercial property, mobile patrols, HOAs and residential property	“Security Services in New York City”	License Number: 1261467	Yelp View listing	Visit website
Knight Security Says it serves the area More about Knight Security In its own words: “Knight Security offers true expertise in event security and planning, press tours, tv and film production security, threat assessment, buildings & facilities security, and executive protection.”	Events and venues, personal protection, offices and commercial property	“Knight Security New York Event Security Guards”	Not found	Yelp View listing	Visit website

Two separate New York checks

The agency: The Department of State licenses watch, guard, or patrol agencies. Use its licensee search.
The guard: The state's Security Guard Registry is used by employers to look up individuals.

NYC questions

Which boroughs do you staff today, with a client we can call?
How do officers get to our site on overnight shifts?
Do you handle lobby and doorman-style posts, or construction and events?

Upstate? See Rochester. Staffing a lobby or a project? Read about commercial security and construction sites.