Nater Associates, Ltd. helps applies tactful and effective workplace security consulting solutions based on lessons learned over the past 30 years as a security management consultant specializing workplace violence prevention. The company helps organizations recognize situations that may lead to workplace violence and how to adopt holistic prevention strategies.

National Sheriffs'​ Association headquarters is located in Alexandria, Virginia and offers training, information, court security services, jail information and other law enforcement services to sheriffs, deputies, and others throughout the nation. NSA has worked to forge cooperative relationships with local, state, and federal criminal justice professionals across the nation to network and share information about homeland security programs.

National Training Center (NTC) is the most recognised name in training for the fire protection and low voltage industry. NTC develops and conducts training for NICET Certification, Continuing Education and career development. They also write and publish professional references, which are used as the standard for the fire protection and low voltage industry.

NDSS Ltd provides a complete range of crowd safety management and security related services to event and festival promoters, owners of licensed venues, location film and TV companies and other small to large businesses in the UK.

NESCTC is a privately held, limited liability company working throughout North America, the Caribbean , and South Pacific. They are a national security company and also have a direct division providing security service in Rhode Island , Massachusetts and Connecticut . Their world corporate headquarters is located in Warwick , Rhode Island

Net IT Matrix provides services in the field of Security & Surveillance,offering turnkey solutions for security infrastructure. The services provided include: Security audit and evaluation. Preparation and implementation of physical security plan. Design and implementation of Surveillance solutions. CCTV system integration with the existing setup, if any. Setting up of Control room. Structured cabling required for the whole setup.

NETAVIS Software GmbH is a pioneer in server-based IP video surveillance and provides high performing video management for various industry sectors since more than 10 years. In over 8,500 installations with more than 100,000 sold licenses, project sizes range from 1 to 10,000 cameras. NETAVIS delivers its products and services through solution partners and distributors, focusing on Europe and the Middle East with some activities in Asia.

The New Jersey Firearms Academy is an educational institution offering firearms training. The institute render products and services pertaining to firearms, self-defense and security – both educational and non-educational. It also offers a wide array of courses from basic firearms to armed security guard training.

Newgate Training Ltd offers training course programme in maritime security, ships security officers, SIA security industry, close protection, door supervision, security officer, CCTV, physical intervention, hospitality, personal licence and food hygiene along with health and safety, first aid at work and teacher training, pttls, conflict management and physical intervention qualifications.

NIKIRET for over 40 years has been designing, manufacturing and installing security equipment at the state border, nuclear power stations, oil-and-gas facilities, hundreds of sensitive and high-security facilities. The company is a part of State Corporation "ROSATOM".

Noble Fox Security is an acclaimed firm of security professionals with a reputation for both effective security solutions and the use of innovative technology. The company specialises in providing armed and unarmed security guard services for banking ATM technician escorts, corporate building security, residential complexes, healthcare facilities, construction sites, HOA's, retail venues, automotive dealerships, weddings, and event security.

ONEST offers engineering and system integration services, hardware and software products development, as well as project management and consultancy. Their services include physical security risk assessment and identification; security systems design, installation and maintainance; testing and evaluation; and security systems concept training.

Onestop Security Platform (OSP) was launched to provide a one-stop centre with dedicated services for the stakeholders in the security industry. Through the e-Portal, OSP brings people, process and technology together to provide unique and innovative solutions.

OnIineITGuru is an e-learning platform for IT courses. Onlineitguru.com provides training on various technologies like ServiceNow, Microsoft Azure, Amazon Web Services, Salesforce, Big Data, Selenium, Android, Tableau and ethical hacking, cybersecurity training, and many more.

OnPar Solutions excels in specialised resourcing; it delivers trusted, reliable and responsive experts that address all aspects of the new security & emergency management business continuum. OnPar Solutions provide both people & solutions that lead its clients through new processes, emerging technologies, as well as domestic & global security challenges. The company offers security consultancy and threat & risk assessments.

OPSWAT Academy offers CIP cybersecurity training and certification programs designed to equip individuals and organizations with the practical knowledge and skills needed to protect critical infrastructure. Through innovative and hands-on learning experiences, OPSWAT Academy bridges the CIP cybersecurity skills gap globally.

Ovit Security addresses physical security and operational risk issues by employing a holistic approach, encompassing all aspects of a client’s operations. Physical security professionals provide support for all facets of an effective security programme, including: security engineering and design, threat assessments, close protection, surveillance, TSCM searches, Manned Guarding.

P&N Security’s knowledge and accumen throughout not only the security industry, but also in dealing with and providing security and transportation services to some of the most affluent and respected clients worldwide.

The P&N Security Group provides security, transportation and luxury travel services to clients worldwide. Its manned guarding team specialises in all forms of guardings, from retail, to residential, and everything in between.

PALLAS provides realistic comprehensive security and risk management solutions for the business, governmental, and private sectors. Its goal is to assist in business continuity within the region’s most volatile operating environments, by providing realistic and effective client-tailored security solutions.

Panther Protection Services is a full service protection agency performing security consulting, threat assessments, risk/crisis management, executive protection, self-defense training, firearms instruction and high risk tactical protection.

Global security consultants & security system suppliers based in the UK. With a worldwide reach, PDP conduct operations to advise on security strategy, audit and compliance, best practice, procurement, installations to project management.

Peace Automation is moving forward with a commitment not only to enhance security for their valued customers but also to provide detection and assessment of intrusion through electronic surveillance at designated sites and their perimeter areas.

Pengelly Young is a management system and security consultant. They have recently arranged for their own business to go through Certification for ISO9001:2015 and ISO27001:2013. They ensure that the client's data is securely stored and backups are taken every hour.

Perpetuity Training is one of the UK’s premier security management training companies, providing a wide range of security, risk management and investigation courses in many different countries and across a range of industries. Perpetuity provides consultancy in security through its parent company Linx International & through its sister company ARC Training International offers additional security management training courses.

PGS has extensive experience operating throughout West Africa, specifically Nigeria, offering tailored solutions to meet clients’ individual and specific needs. They deliver various security services to a wide range of organisations and government agencies in Nigeria. These services range from risk management consultancy & the provision of physical protective solutions to specialist risk management training.

Pilgrims Group is a global security, risk management and service support company that identifies and manages risks for clients across all sectors, including oil & gas, telecoms, pharmaceutical, media agencies and international blue chip corporations.