Cybersecurity services, physical and cyber penetration testing

National Security Fire Alarm Systems

East Providence, Rhode Island, USA

Alarm systems; fire; video; access; 24/7 monitoring • https://nationalalarm.com • +1-401-438-8888

NationWide Investigations & Security

Detroit, Michigan, USA

Security officers; patrol; investigations • +1-313-349-1035

Nebraska Safety & Fire Equipment, Inc.

North Platte, Nebraska, USA

Security systems; access control; CCTV; fire systems • https://www.nebraskasafetyandfire.com • +1-800-504-0053

NetWork Center Communications

West Fargo, North Dakota, USA

Security cameras; networking; access control • https://www.netcenter.net • +1-701-235-8100

Nevada Security Company, LLC

Sparks, Nevada, USA

Security cameras; systems; installation • https://nevadasecurityco.com • +1-775-XXX-XXXX

Nevada Security Services (NVSS)

Sparks, Nevada, USA

Private patrol; posted guards; investigations • info@zaneinvestigations.com • https://www.nvsecurityservices.com • +1-888-337-8177

New England Security

Malden, Massachusetts, USA

Armed and unarmed guards; event security; mobile patrol • https://newenglandsecurity.com • +1-617-322-6372

New Vision Security Systems

Bismarck, North Dakota, USA

Security systems; access control; video; monitoring • office@newvisionnd.com • https://www.newvisionnd.com • +1-701-222-8888

Newport Security Company

Jersey City, New Jersey, USA

Mall security; incident response • +1-201-626-5678

NHS Security, LLC

Minot, North Dakota, USA

Security officers; patrol; alarm systems • +1-701-837-6054

Nighthawk Security Company LLC

Owensboro, Kentucky, USA

Armed/unarmed officers; mobile patrol • nighthawksecurity@oolwireless.net • https://nighthawksecurityco.com • +1-866-797-4295

NLU Computers

Wahpeton, North Dakota, USA

Video surveillance; IT services • +1-701-672-0120

NMS Security Services, LLC

Anchorage, Alaska, USA

Security officers; remote site security; monitoring; patrol • salesinfo@nmsusa.com • https://www.nmsusa.com • +1-907-273-2400

Nob Hill Security

San Francisco, California, USA

Building security, lobby and residential security • info@nobhillsecurity.com • https://nobhillsecurity.com • +1-415-797-7575

NOLA Protection Group, LLC

Harvey, Louisiana, USA

Commercial, neighborhood, special event, film & TV, executive protection • info@nolaprotection.com • https://nolaprotection.com • +1-504-577-2323

North Dakota Telephone Company

Devils Lake, North Dakota, USA

Video surveillance; communications • https://www.gondtc.com • +1-701-662-1100

North Star Security

Polson, Montana, USA

Alarm response; patrol; intrusion systems; video; access control • info@northstarsecuritypolson.com • https://northstarsecuritypolson.com • +1-406-883-6822

Northeast Security Solutions, Inc.

West Springfield, Massachusetts, USA

Alarms; access control; video; locksmith; monitoring • dispatch@teamnss.com • https://northeastsecuritysolutions.com • +1-413-732-8748

Northeast Security, Inc.

Westwood, Massachusetts, USA

Contract security officers; mobile patrol; technology • https://www.nesecurity.com • +1-617-739-1500

Northern Maine Security LLC

Maine, USA

Armed and unarmed guards; mobile patrol; executive protection • w.groom.nms@gmail.com • https://www.northernmainesecurity.com • +1-207-450-6220

Northern Support Services

Anchorage, Alaska, USA

Fire and security systems; access control; video surveillance • sohara@aknss.com • https://aknss.com • +1-907-952-4964

Northern Utah Protection

Hooper, Utah, USA

Armed/unarmed officers; mobile patrol; concierge • nup@northernutahprotection.com • https://www.northernutahsecurity.com • +1-801-985-9462

NorthStar Alarm Services

Orem, Utah, USA

Home security; automation; monitoring • https://www.northstarhome.com • +1-800-775-7827

Northwest Projector