Delivering Power Reliability & Resiliency

When outages can translate into millions in lost revenue, mission failure, or even loss of life, M.C. Dean is trusted to design, build, operate, and maintain the nation’s most critical infrastructure and facilities.


Our engineers and technicians provide full lifecycle expertise, employ cutting-edge technologies, and apply proven processes to deliver world-class power performance, reliability, and resiliency.

#7 Electrical

Engineering News-Record (ENR) Rankings

Top 20 DataCenter

BD+C Contractor & Design Firm Rankings

#4 Defense

BD+C Federal & DoD Contractor Rankings

Electrical Distribution

M.C. Dean designs and constructs safe, reliable, and energy-efficient electrical distribution systems for mission critical facilities. Our designs are purpose-built to meet our customers’ unique functional, physical, and performance requirements over the intended life of the facility. We review existing electrical systems and power quality studies to incorporate industry-best practices into new construction and renovation designs. Our operations and maintenance teams also assess power quality issues to provide predictive and preventive maintenance for clients’ existing electrical distribution systems.

  • Emergency Systems
  • Equipment Branch Power
  • Life Safety Branch Power
  • Critical Branch Power
  • Motor Controls
  • Lighting
  • Lightning & Surge Protection

Utilities & Distributed Energy

M.C. Dean offers turnkey, design-build distributed energy and islanded power solutions for large-scale facilities and government campuses where independent and reliable generation, transmission, and distribution are required to maintain mission critical operations.

  • Substations
  • Turbines
  • Solar Photovoltaic
  • Reciprocating Engines
  • Co-Generation
  • Energy Storage


M.C. Dean provides full life-cycle mechanical services with expertise in mission critical, classified federal facilities. Leveraging our multi-disciplined approach, we provide our customers with the most cost-effective and practical best-in-class solutions to keep their systems operating in a highly sustainable and reliable environment. Our team of cleared and certified mechanical experts provides on-site and on-call operations and maintenance support, keeping your systems running 24x7x365.

  • Ventilation
  • Cooling
  • Heating
  • Humidification
  • Piping
  • Pumps

Critical Power

M.C. Dean is one of the largest independent critical power providers in the United States. We design solutions and specify technologies and equipment to enhance the safety, reliability, efficiency, and sustainability of mission critical facilities. Our customers rely on us to optimize systems performance through data-driven sustainment and establish preventive and predictive maintenance procedures that proactively protect against system outages and failures.

  • On-site Generation
  • Automatic Transfer Switch
  • Uninterruptible Power Supply
  • Energy Storage
  • Static Switches
  • Power Distribution Units

Traction Power

M.C. Dean provides turnkey design-build traction power systems integrated with remote monitoring and control systems. We prefabricate traction power substations, including SCADA systems, and can perform commissioning offsite to deliver a complete working system to our customers. Our team also performs functional performance testing with integrated systems onsite. Customers benefit from improved quality, accelerated schedules, enhanced safety, and reduced risks to active train line operations.

  • Medium-voltage Switchgear
  • Medium-voltage Transformer
  • Rectifier
  • DC Switchgear
  • Breakers
  • Bus Duct & Feeder
  • Stray Current Drainage
  • Negative Return Cables

Fire Protection & Life Safety

M.C. Dean is a leader in design and integration of life safety systems. We design, fabricate, pre-test, install, commission, maintain, service and monitor fire detection, suppression, and containment for large-scale infrastructure and mission critical facilities. Customers rely on our world-class technology systems integration and engineering experts to configure scalable and automated solutions that comply with building codes, industry standards, and cybersecurity best practices.

  • Fire Detection
  • Special Hazard
  • Aspirating Smoke Detection
  • Emergency Voice Communication Systems
  • Bidirectional Amplifier
  • Central Monitoring Station
  • Mass Notification & Paging
  • Smoke Control
  • Network Systems
  • Wireless Fire Alarm
  • Fire Graphics Systems

Related News & Awards

Central Records Complex receives third sustainability certification

Central Records Complex receives third sustainability certification

Making D.C. Metro brighter, safer, and more sustainable

UVA UHE wins ENR Mid-Atlantic Best Project award