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View ESP Security's top competitors like Advanced Design Technology Pty Ltd, Allied Universal, and Assured Security Group Pty Limited.

Allied Universal
Allied Universal®, a leading security and facility services company, provides proactive security services and cutting-edge smart technology to deliver evolving, tailored solutions that allow clients to focus on their core business. Our excellence starts with our local leadership and local presence. In fact, in North America alone, we have an extensive network of offices to support our local communities and customers. We take pride in our extensive knowledge in a range of specialty sectors such as education, healthcare, retail, commercial real estate, government and corporate campuses, etc. We believe there is no greater purpose than serving and safeguarding customers, communities and people in today’s world. Allied Universal is There for you®.
Irvine, California, US
Private
$20B Revenue
https://www.aus.com/
107K Employees
G4S
G4S is a leading security and facility services company that provides proactive security services and cutting-edge smart technology to deliver tailored, integrated security solutions that allow clients to focus on their core business. Through a global workforce of approximately 800,000 people, we leverage best practices in communities all over the world. With revenues at approximately $20 billion, we are supported by efficient processes and systems that can only come with scale to help deliver our promise locally: keeping people safe so our communities can thrive. For more information on G4S, visit www.g4s.com.
UK
Public
$20B Revenue
http://www.g4s.com
117.9K Employees
LSE:GFS Ticker
NSS Group
NSS Group provides high quality service by placing great emphasis on staff, training, equipment, service standards and customer service. We are committed to training and developing employees to provide the highest quality service every time. Our staff are trained in the latest technology and equipment to keep you safe and provide fast turnaround times. As a medium sized service provider we can give greater personal service than our larger competitors, but have the capability to tailor quality, endorsed solutions for all businesses and environments. As a privately owned company we can respond quickly and create positive, practical, value for money solutions for you and your business. All clients are provided with the highest quality service standards that adhere to all legislation, industry standards, and higher Quality endorsed standards to ISO 9001, as is monitored by the Lloyds Register of Quality Assurance. We believe in regular communication with our clients, and are able to meet and exceed expectations and save you money by streamlining your security solution. The NSS group has a reputation for building long standing relationships with its customers, employees and suppliers.
Moorebank, AU
Private
$13.2M Revenue
http://www.nssgroup.com.au
9 Employees

Top ESP Security Employees

G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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