Citadel Security

What Citadel Security does

Citadel Security is a privately held, veteran-led physical security services provider founded in 2007 and headquartered in Nixa, Missouri. The company delivers a portfolio of manned guarding services—unarmed and armed officers, mobile patrol, event security, corporate/executive protection, and fire watch—to more than 1,000 clients across at least nine verticals (commercial properties, industrial and manufacturing, financial services, healthcare, government, residential, energy, construction, and events) in six U.S. states (Missouri, Kansas, Colorado, Iowa, Kentucky, and Utah). Citadel reports 95%+ client retention and protection of $4B-$10B in client assets across its portfolio.

The core service portfolio is delivered through a regional management model in which empowered local leaders make real-time operational decisions. Citadel layers technology onto its officer base via a 24/7/365 Security Operations Center (SOC) that integrates the IMMIX alarm-monitoring platform, Calipsa AI video analytics for false-alarm filtering and intrusion detection, and TrackTik for GPS-verified scheduling, patrol logging, and incident documentation. The Integrated Security product combines cameras, mobile patrols, and dispatch under the SOC layer, sold as an add-on to core guard contracts. Fire Watch Services provides specialized compliance coverage when fire protection systems are impaired.

Citadel operates a managed-services revenue model with quote-based, customized contracts priced on coverage hours, property requirements, and service complexity. Distribution is primarily through direct enterprise field sales targeting mid-to-large organizations, supported by inbound website inquiries. Following its May 2025 acquisition by Kansas City-based private equity firm Great Range Capital, Citadel has pursued a buy-and-build strategy, acquiring Metropolitan Protective Services (Denver, May 2025) and Midwest Security (May 2026), and forming a strategic partnership with Code 4 Security Services in February 2026. The co-founders—Justin Hale (CEO) and Todd DeJong (CAO)—retained leadership, with new senior hires including CFO Ryan Snyder (April 2025) and COO Walter Chi (April 2026) added to support integration and scaling.

Name

Citadel Security

Legal name

Citadel Security USA, Inc.

Website

https://citadelsecurityusa.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

101–250 employees

Short description

Citadel Security is a veteran-led private physical security firm providing manned guarding, armed security, mobile patrol, event security, fire watch, and AI-augmented integrated security to commercial, industrial, healthcare, government, energy, and construction clients across six U.S. states.

Ownership category

akta.pro rank

Product category

Physical Security Services

NAICS

Security Guards and Patrol Services (561612), Security Systems Services (except Locksmiths) (561621), Investigation, Guard, and Armored Car Services (56161)

SIC

Services-Detective, Guard & Armored Car Services (7381), Services-Facilities Support Management Services (8744)

akta.pro primary industry

Manned Guarding & Patrol Services (IMAIAEAA)

akta.pro secondary industries

Static Guarding (Access Control, Reception & Gatehouse) (BPAKAAAA), Security Systems Monitoring & Dispatch (SOC/Remote Guarding) (IMAIAEAF), Remote Video Guarding / Virtual Patrol (Guard + CCTV) (BPAKAAAL), Executive Protection & VIP Close Protection (THAHALAE), Residential & Community Guarding (HOAs, Gated Communities) (BPAKAAAE)

Keywords

• Manned security guarding
• Mobile patrol services
• Armed security officers
• Event security services
• Integrated security solutions

Headquarters

HQ city

Nixa

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Security Guard Services: Professional security officers providing unarmed guard services for property protection, access control, and patrol operations. Delivered through recurring service contracts with clients across multiple industries.
2. Armed Security Services: Licensed armed officers providing enhanced protection for high-risk environments, combining threat deterrence with de-escalation expertise.
3. Mobile Patrol Services: Marked patrol vehicles delivering rapid response, on-site visibility, and consistent protection across client properties. Billed based on patrol coverage hours and frequency.
4. Event Security: Expertly coordinated security for events from access control to emergency response. Typically project-based or contracted for recurring event coverage.
5. Corporate Security: Discreet executive protection and corporate campus security services for high-profile clients and operations requiring elevated security.
6. Integrated Security Solutions: AI-powered monitoring combining cameras, mobile patrols, and 24/7 dispatch. Integrated technology-augmented security services with monitoring fees.
7. Fire Watch Services: Licensed fire watch officers providing around-the-clock monitoring when fire protection systems are impaired, ensuring compliance and safety until systems are restored.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Citadel Security is a contracted manned guarding and physical security services provider delivering unarmed security guards, armed officers, marked mobile patrols, event security, corporate/executive protection, and fire watch across commercial, industrial, healthcare, government, energy, construction, financial services, residential, and event clients. Services are delivered through a regional management model and augmented by an Integrated Security layer that combines on-site patrols, cameras, and a 24/7 Security Operations Center (SOC) using AI-enabled video analytics to filter false alarms, verify events, and coordinate response.

Product overview

Citadel Security offers a portfolio of physical security services built around manned guarding, mobile patrols, event security, and corporate protection. The core offering consists of five guard service types (Security Guard Services, Armed Security, Mobile Patrol Services, Event Security, Corporate Security) delivered through a regional management model with empowered local decision-making. The Integrated Security add-on layer enhances core services with AI-powered monitoring through a proprietary Security Operations Center (SOC), combining IMMIX monitoring platform with Calipsa AI video analytics to provide 24/7 centralized coordination, alarm verification, and real-time response. Fire Watch Services provides specialized compliance coverage when fire protection systems are offline. The company has grown through acquisitions including Midwest Security and Metropolitan Protective Services, supported by private equity partner Great Range Capital.

Differentiator

Problem solved

Functional benefit

Products and services

• Security Guard Services Proactive, high-visibility patrols and access control from unarmed officers who help keep commercial, industrial, healthcare, government, and other client properties safe and secure. Sold to mid-market and enterprise clients under recurring service contracts.
• Armed Security Licensed and specially trained armed officers that combine threat deterrence with de-escalation expertise to manage high-risk environments with confidence and control. Targeted at enterprises and government sites needing enhanced protection.
• Mobile Patrol Services Marked mobile patrol units that deliver rapid response, strong on-site visibility, and consistent, reliable protection across client properties. Billed based on patrol coverage hours and frequency.
• Event Security Expertly coordinated event security covering access control, crowd management, and emergency response to protect guests at large-scale events. Delivered as project-based or recurring contracted coverage.
• Corporate Security Discreet, professional protection for executives, corporate campuses, high-end office complexes, and operations requiring elevated security and trust. Targets corporate and high-profile clients.
• Integrated Security AI-powered integrated security combining cameras, mobile patrols, and 24/7 dispatch through the Citadel Security Operations Center to stop threats early, reduce false alarms, and cut costs. Enhances core guard services with centralized monitoring.
• Security Operations Center (SOC) Centralized coordination hub operating 24/7/365 that monitors activity, verifies alerts, coordinates response, and documents incidents across multiple locations, integrating the IMMIX monitoring platform with Calipsa AI video analytics.
• Fire Watch Services Licensed fire watch officers providing around-the-clock monitoring when fire alarm, sprinkler, or suppression systems are offline, ensuring compliance and rapid emergency response until fire protection systems are restored.

Quantifiable outcome

• 18 years of consistent security operations since founding in 2007
• +3 more outcomes

Named customers2 records

Segments10 records

Ideal customer profiles7 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability3 records

Feature5 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Code 4 Security ServicescoreStrategic or Co-development Partner · 25 February 2026Strategic partnership announced February 2026 to expand Citadel's leadership team and service capabilities. Code 4 Integration further strengthens Utah operations with advanced operational support and local leadership. Represents Citadel's commitment to growth through complementary partnerships.
• Folds of HonorminorOthers · 27 August 2025Citadel joined Folds of Honor, an organization providing educational scholarships to spouses and children of America's fallen or disabled service members and first responders. Citadel employees contribute monthly donations ($13 per employee) to support scholarship programs. Partnership reflects Citadel's veteran-owned culture and commitment to service.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Allied Universal: Largest US manned security services provider offering guard, patrol, and integrated security across all 50 states. Comparable to Citadel's core manned guarding offering but at vastly greater scale and geographic breadth.
• GardaWorld: Canadian-based global security services firm with significant US footprint in manned guarding, cash services, and mobile patrol. Competes for enterprise and government accounts similar to Citadel.
• Securitas USA: US arm of global security giant Securitas AB, providing uniformed guarding, mobile patrol, and electronic security. Directly competes for the same commercial, industrial, and government contracts Citadel pursues.
• Prosegur Security USA: US arm of global security group Prosegur offering manned guarding, electronic security, and cash logistics. Competes for enterprise contracts similar to Citadel's customer base.

Direct peers

• Covenant Security Solutions: US private security company offering armed/unarmed guards, patrol, and event security to commercial and government clients. Comparable mid-market positioning to Citadel.
• PalAmerican Security: US-focused security guard services provider serving commercial, industrial, and residential accounts with a multi-state footprint. Directly comparable mid-market competitor to Citadel.
• Per Mar Security Services: Privately held, multi-generation US security company offering uniformed officers, patrol, alarm monitoring, and integrated security. Closely comparable to Citadel's full-service portfolio and multi-state footprint.
• St. Moritz Security Services: Mid-size US private security firm offering uniformed guards, mobile patrol, and security consulting across multiple states. Closely comparable scale and service mix to Citadel.
• Titan Security Group: Chicago-based private security firm providing uniformed guards, patrol, and specialized services across the Midwest. Direct competitor in Citadel's geographic core.
• TriCorps Security & Patrol: Privately held US security firm providing manned guarding, mobile patrol, and concierge security across multiple states including the Midwest. Highly comparable size and offering to Citadel.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/csidefend
• LinkedInlinkedin.com/company/citadel-security-usa

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Citadel Security