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View Highland Security's top competitors like ABM Industries, ADT UK & Ireland, and Allied Universal Corporation.

ABM Industries
ABM is one of the world’s largest providers of integrated facility, engineering, and infrastructure solutions. Every day, our over 100,000 team members deliver essential services that make spaces cleaner, safer, and efficient, enhancing the overall occupant experience. ABM serves a wide range of market sectors including commercial real estate, aviation, education, mission critical, and manufacturing and distribution. With over $8 billion in annual revenue and a blue-chip client base, ABM delivers innovative technologies and sustainable solutions that enhance facilities and empower clients to achieve their goals. Committed to creating smarter, more connected spaces, ABM is investing in the future to meet evolving challenges and build a healthier, thriving world. ABM: Driving possibility, together. For more information, visit www.ABM.com We welcome respectful dialogue. Comments that are abusive, repetitive, or violate our community guidelines may be removed. Full guidelines: https://www.abm.com/social-media-moderation-policy
New York, New York, US
Public
$8.4B Revenue
http://www.abm.com
32.8K Employees
ABM Ticker
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
118.2K Employees
LSE:GFS Ticker
Prosegur
50 Years of Excellence: Experience, Innovation, and Commitment to Safety. 🌐 Pro in leadership. Industry leaders with a presence in 36 countries. πŸ’‘ Pro in innovation. We reinvent ourselves, adapt, and integrate trends to offer increasingly advanced solutions. πŸ‘₯ Pro in people. More than 180,000 employees across 5 continents working toward a common purpose: building a safer world. πŸš€ Pro in professionalism, proactivity, and protection: principles that guide our approach to security. We have four business lines: 🟑 Prosegur Security 🟑 Prosegur Cash 🟑 Prosegur Alarms 🟑 AVOS Tech #50YearsBeingPro πŸ’›
Madrid, ES
Public
$5B Revenue
http://www.prosegur.com
68.7K Employees
PSG Ticker

Top Highland 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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