WHO WE SERVE: CRITICAL INFRASTRUCTURE

Complete Facility Solutions for Our Most Critical Operations

From nuclear power plants to utility campuses and refineries, Marsden delivers comprehensive and tailored solutions to keep your critical operations safe, compliant, and running 24/7, year-round.

Critical Infrastructure Protection That Never Compromises

Marsden is a leading provider of integrated facility services for nuclear plants, utility companies, refineries, and other critical infrastructure across the United States. We understand the uncompromising standards that facility managers, security directors, and operations leaders face in protecting vital assets, maintaining regulatory compliance, and ensuring the safety of personnel in high-security, high-consequence environments.

70+
Years

Serving Critical Facilities & High-Security Operations

90+
Sites

Critical Infrastructure Sites Served Nationwide

24/7
Response

Emergency Response Availability

Critical Infrastructure Services

We provide fully integrated solutions and best practices across security, janitorial, mechanical maintenance, HVAC, and emergency response. Our solutions are tailored to your unique facility and delivered with the responsiveness of a local partner and the capabilities of a national provider.

Nuclear Power Plant Security

Badged, background-checked security officers trained in nuclear facility protocols, physical security requirements, and armed response for perimeter and asset protection.

Utility Campus Security

Comprehensive security coverage across multi-building utility campuses with personnel certified for high-security environments and substation protection.

Refinery & Industrial Security

Specialized security teams for petrochemical facilities, refineries, and processing plants with hazardous materials training and access control expertise.

Janitorial Environmental Services

Facility-specific cleaning protocols tailored to Class A, B, and C buildings, from polished administrative offices to industrial control rooms and operations centers.

HVAC Maintenance & Monitoring

Preventive maintenance and emergency repairs for climate control systems that are critical to equipment performance and personnel safety.

Emergency Response Services

Rapid-response teams for security incidents, environmental emergencies, equipment failures, and natural disasters affecting critical operations.

Facility Services Solutions

Integrated coordination of multiple service contractors, compliance documentation, and operational oversight across complex, multi-facility campuses.

Access Control & Credentialing Support

Coordination with badging requirements, clearance protocols, and multi-tier security zones to ensure only authorized personnel have access to restricted areas.

24/7 Video Surveillance & Monitoring

Complete surveillance resources, including fixed cameras and mobile surveillance units. Our control centers provide round-the-clock monitoring support to ensure operations can continue flawlessly.

Risk Assessment & Loss Prevention

Comprehensive site evaluations by our construction experts to identify vulnerabilities and implement loss prevention strategies that keep expensive machinery, materials, and equipment secure.

Real Facilities. Real Results.

See how Marsden’s integrated critical infrastructure solutions help utility operators, nuclear facilities, and refinery managers across the United States maintain security, stay compliant, and protect valuable assets—all while ensuring personnel safety in high-consequence environments.

Marsden’s Comprehensive Approach

for Nuclear Power Plants, Utilities, & Refineries

Marsden works with you to create a tailored solution, no matter what security classification or operational complexity your facility has.

Unlike larger competitors, where decisions require corporate approval, Marsden’s operational decisions are made in the field by local teams—giving you the real-time responsiveness you need when regulatory requirements change or operational emergencies arise.

Facility Assessment & Classification

Our local team evaluates your campus layout, building classifications (Class A administrative, Class B operations, Class C industrial), security zones, and compliance requirements. Our assessment considers your diverse environmental requirements and the varying service levels each requires.

Customized Service Plan Development

With proven methodologies and experience in similar projects, we design a tailored strategy aligned with NERC-CIP, NRC, your facility’s security classifications, and operational priorities. We clearly define protocols, frequencies, credentialing requirements, and compliance documentation.

Credentialing & Compliance Integration

We work within your existing badging systems and protocols, including NERC-CIP for utilities and NRC for nuclear plants to ensure seamless integration with your security infrastructure.

Security & Surveillance Implementation

Depending on your security needs, we provide a complete range of facility security systems, including on-site guards, cameras, control units, and mobile surveillance units. Local security teams can make immediate adjustments to coverage based on evolving site conditions.

Multi-Building Coordination

For utility campuses and refinery complexes with diverse facility types, we coordinate different service levels across administrative offices, control rooms, substations, and industrial areas. Our protocols are adjusted for each building’s classification and security requirements.

Emergency Response Readiness

When unexpected incidents occur—security breaches, equipment failures, environmental emergencies, or infrastructure threats—our 24/7 emergency response team mobilizes quickly to neutralize threats, minimize damage, and maintain operational continuity. Local decision-making authority means we can deploy resources immediately without waiting for corporate approvals that slow down larger competitors.

Ongoing Monitoring, Coordination, and Support

We continuously evaluate and evolve our procedures and protocols for each of your facility’s diverse building classifications. As your campus evolves, regulatory requirements change, or operational priorities shift, we adjust service levels and offerings. Your dedicated local team knows every building classification, security zone, and operational requirement across your campus.

Why Hire Marsden for Your Critical Infrastructure facility

Keep your critical operations running 24/7

Prevent security breaches, equipment sabotage, and unauthorized access to vital infrastructure that can trigger cascading failures, regulatory violations, and service disruptions affecting entire regions.

Meet regulatory & compliance requirements

Stay compliant with NERC-CIP standards for utilities, NRC physical security requirements for nuclear plants, OSHA regulations, and industry-specific safety protocols with documented procedures and trained personnel.

Ensure the safety of your on-site staff

Create secure work environments where operators, technicians, and administrative staff can focus on critical operations without security concerns or unauthorized access threats.

Adapt services to facility classifications

Receive appropriate service levels across diverse building types—from Class A administrative offices requiring polished, professional presentation to Class C industrial facilities needing specialized cleaning and safety protocols.

Demonstrate due diligence to regulators & stakeholders

Show regulatory bodies, insurance carriers, and corporate leadership your commitment to protection with professional security officers, documented compliance procedures, and integrated facility services solutions.

Simplify project management & vendor coordination

Streamline communication and ensure consistent quality with a single-source provider for multiple critical services.

Get support from local experts.

Work with local teams with proven track records and eliminate the need for corporate approvals as regulatory and operational needs change or environmental and other emergencies arise.

Get services based on your fluctuating needs

Adjust security coverage, access controls, and monitoring intensity based on operational phases, threat assessments, and regulatory requirements without long contract renegotiations.

Partner with facility services that understand what’s at stake.

Frequently Asked Questions

for Nuclear Power Plants, Utilities, & Refineries

Marsden maintains stringent hiring standards, including comprehensive background checks, security clearances, and specialized training for critical infrastructure environments. Our personnel can obtain required badging for nuclear facilities (including red badge certification), utility substations, and refineries. We maintain compliance with NERC-CIP standards for utility security and NRC physical security requirements for nuclear plants, with documented procedures and ongoing personnel training that meets or exceeds industry requirements.

We understand that utility campuses and refinery complexes span multiple buildings with different classifications and security needs. Our approach tailors services to each facility type—Class A administrative buildings receive professional, polished environmental services with discreet security, while Class B operations centers and Class C industrial facilities get specialized protocols for control rooms, equipment areas, and processing zones. We coordinate across these diverse environments with unified oversight while adapting procedures to match each area’s specific requirements.

Marsden’s emergency response team operates 24/7/365 and can typically mobilize within 1-3 hours, depending on your location and the nature of the incident.

For critical events like security breaches, equipment failures, environmental emergencies, or infrastructure damage that threaten safety or operational continuity, every minute of response delay increases risk exposure.

Because our operational decisions are made in the field by local teams, we can deploy specialized resources and activate response protocols immediately without waiting for corporate approvals that turn manageable incidents into major crises at larger competitors.

Our emergency services include: security incident response and threat neutralization, critical equipment protection and system safeguarding, environmental containment and hazardous material cleanup, infrastructure damage assessment and emergency repairs, climate control restoration for sensitive equipment areas, emergency facility services to maintain operations, and coordination with regulatory agencies, law enforcement, and insurance carriers.

We serve nuclear power plants, utility companies with multi-building campuses, electrical substations, refineries, petrochemical processing facilities, and other high-security industrial operations. Our services adapt to each facility’s unique requirements—from armed security officers for nuclear perimeter protection to specialized cleaning protocols for control rooms and HVAC maintenance for climate-sensitive equipment areas.

We maintain comprehensive documentation systems for security procedures, personnel training records, incident reports, access logs, and compliance certifications required by regulators and insurance carriers. Our teams understand that in critical infrastructure, documentation isn’t just paperwork—it’s proof of due diligence during regulatory audits, insurance reviews, and corporate oversight. We provide the detailed records you need without creating an administrative burden for your staff.

We integrate with your current systems rather than replacing them. Our teams work within your badging requirements, access control systems, security zones, communication protocols, and emergency procedures. We coordinate with your internal security leadership, regulatory compliance teams, and operations managers to ensure our services enhance your existing infrastructure rather than creating coordination challenges or protocol conflicts.