Who Are the Best-Rated Security Guard Companies in Denver?
- Lucas Visscher
- 3 days ago
- 4 min read
No single source identifies a definitive best-rated security guard company in Denver. Five providers worth comparing are Bellator Defense, Denver Metro Security, Denver Platinum Protection Group, Frontier Security Guard & Patrol, and Scout Security. Their services, public reputation sources, and review volume differ, so the strongest fit depends on the property, assignment, and required coverage.
A five-star score can look decisive until you notice it comes from only a few reviews or appears on a company-hosted testimonial page. This comparison separates customer-review platforms, Better Business Bureau ratings, and first-party testimonials so you can evaluate the evidence behind each reputation claim.
Companies are listed alphabetically. Numbering does not represent a ranking.
How we selected the companies
We included providers with active Denver-area operations, official service information, and public reputation sources that could be reviewed. The research used official company websites, linked Google Business Profiles, and Better Business Bureau listings available on July 24, 2026.
Ratings and review totals can change. Confirm the current profile before hiring a provider. BBB letter grades assess factors such as complaint history and business practices. They are not customer star ratings. Testimonials published on a company’s website are also first-party feedback rather than independent reviews.
Best-rated security guard companies serving Denver
These five providers support different properties, events, and risk levels across Denver. Compare their services, strongest use cases, and available rating information.
1. Bellator Defense
Bellator Defense is an Englewood-based security company serving businesses, properties, construction sites, residential communities, and events throughout the Denver area. The company builds guard coverage around each client’s schedule, site layout, and risk level.
Top services
Armed and unarmed security guards
Access control and crowd management
Fire watch and overnight security
Best fit
Commercial properties and construction sites
Corporate, political, and private events
Executives or high-profile guests requiring close protection
Organizations needing customized guard coverage and reporting
Rating
5.0/5.0 stars (32 Google reviews)
2. Denver Metro Security
Denver Metro Security Inc. states that its founding members have served Colorado since 1983. The company provides security for businesses, institutions, residential properties, and community organizations.
Top services
On-site and event security
Mobile patrol services
Mobile surveillance
School security
Church security
Best fit
Private schools and churches
Apartment communities and retail properties
Construction and industrial sites
Organizations needing patrol or on-site coverage
Rating
4.7/5.0 stars (15 Google reviews)
3. Denver Platinum Protection Group
Denver Platinum Protection Group provides armed and unarmed guards, patrol services, and property security across Colorado and California. Its Denver office supports commercial, residential, healthcare, construction, and event clients.
Top services
Armed and unarmed security guards
Mobile patrol services
Commercial property security
Residential community security
Hospital and event security
Best fit
Commercial offices and residential communities
Healthcare facilities
Construction sites
Clients needing scheduled or 24-hour coverage
Rating
5.0/5.0 stars (9 Google reviews)
4. Frontier Security Guard & Patrol
Frontier Security Guard & Patrol provides unarmed guards, vehicle patrols, temporary coverage, and specialized security throughout the Denver metro area. Its service list covers commercial, residential, industrial, institutional, and event settings.
Top services
Building and commercial security
Courtesy and vehicle patrol
Event and VIP security
Fire watch
Emergency and temporary security
Best fit
Commercial buildings and residential communities
Industrial properties and construction sites
Events requiring unarmed guards or patrol coverage
Organizations needing short-term or emergency security
Rating
4.5/5.0 stars (16 Google reviews)
5. Scout Security
Scout Security is a veteran-owned company serving Denver and Colorado Springs. Its services combine on-site guards, mobile patrols, fire watch, and remote video monitoring.
Top services
Dedicated security guards
Mobile patrol
Live video surveillance
Fire watch
Construction and parking lot security
Best fit
Construction sites and industrial facilities
Hotels and commercial properties
Parking lots and large outdoor areas
Clients seeking guard coverage with remote monitoring
Rating
4.9/5.0 stars (382 Google reviews)
What to consider beyond security company ratings
A high rating deserves attention, but the final decision should depend on the provider’s ability to protect your specific environment. Confirm these details before signing a security contract:
Applicable company and guard licenses
General liability and workers’ compensation insurance
Experience with comparable properties or events
Guard screening and training standards
Supervisor availability and quality-control procedures
Incident reports and client communication
Emergency response and escalation procedures
Staffing capacity for your schedule and location
Contract terms, cancellation policies, and added fees
Ask each provider how it would staff your assignment, supervise guards, document activity, and respond when conditions change. Clear answers provide more useful information than a star score alone.
Build your Denver security plan around the actual risk
Your property, event, or organization needs coverage based on its access points, operating hours, people, assets, and most likely threats. A generic guard package can leave important risks unaddressed.
Bellator Defense develops security plans for commercial properties, construction sites, residential communities, private events, and executive protection assignments across the Denver area.
Request a free security quote to discuss your location, schedule, concerns, and required level of coverage.
Frequently asked questions
How do you choose the best security guard company?
Choose a licensed and insured company with experience protecting properties or events like yours. Compare guard training, supervision, incident reporting, emergency procedures, staffing capacity, public reviews, and the proposed security plan.
Do security guards need a license in Colorado?
Colorado does not have one statewide security guard license. Local governments set their own requirements. The City and County of Denver requires security guards working within Denver to hold a local license.
What are five qualities of a good security guard?
Five essential qualities are alertness, professionalism, sound judgment, clear communication, and reliability. A good guard stays observant, follows procedures, responds calmly, and documents incidents accurately.
What are the top three responsibilities of a security guard?
The three primary responsibilities are protecting people and property, monitoring activity and controlling access, and responding to and reporting incidents. Specific duties depend on the site, risks, post orders, and guard authority.
Who is the biggest security guard company?
Allied Universal is the largest security and facility services provider by global scale. The company reports operations in more than 100 countries and territories and approximately $23 billion in annual revenue.
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