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IEI engineers inspecting rooftop air handling units at a federal facility

Facilities. Infrastructure. Technology. Mission.

Complex Facilities.
Mission-Critical Solutions.

IEI delivers integrated facilities, environmental, construction, engineering, inspection, and technology solutions to government and institutional clients around the world.

Mission-Built Expertise. Proven at Scale. For more than two decades, IEI has supported complex federal, institutional, and mission-critical facilities throughout the United States and around the world.

SBA WOSB Certified

Serving federal agencies since 2004 · 44 States · 90+ Countries · SBA-Certified WOSB

Mission-Ready Built Environments

We solve complex challenges in the built environment.

For more than two decades, IEI has helped federal agencies and institutional clients operate, maintain, assess, modernize, and protect critical facilities across the United States and around the world.

From facility operations and smart building systems to environmental compliance, construction, hazardous-material remediation, housing inspections, and emerging technology, IEI brings multidisciplinary expertise together under one organization.

ProvenInnovativeEffectiveAgile

Capabilities

Eight disciplines. One accountable organization.

Facilities, engineering, environment, construction, and technology rarely arrive as separate problems. IEI is organized so they don't have to be solved by separate vendors.

01

Facilities Operations & Maintenance

Comprehensive operations, engineering, maintenance, and lifecycle support for complex government and institutional facilities.

Explore Facilities Management
04

Construction & Infrastructure

Construction management, renovation, modernization, and design-build support inside occupied, secure facilities.

Explore Construction
06

Housing & Inspection Services

HUD, NSPIRE, and municipal housing inspection programs — delivered at volume, with technology-enabled quality control.

Explore Housing & Inspections
07

Technical & Advisory Services

Master planning, real property strategy, and engineering advisory support for DoD, DOE, and complex federal portfolios.

Explore Technical Services
08

Technology & Innovation

Applied technology — inspection platforms, facility analytics, AI decision support, and remote investigation.

Explore IEI Innovation

IEI by the Numbers

Proven at scale.

50M+ SFFederal and institutional real property supported and assessed
500+Federal facilities supported
55,000+Property and housing inspections completed
200+Construction and renovation task orders
44 StatesDocumented U.S. operational reach
90+ CountriesWorldwide project experience

The IEI Difference

Complex facilities. Secure environments. Critical infrastructure.

IEI brings the experience, systems, and technical expertise to perform where execution matters.

Proven

Two decades of experience supporting government and institutional clients in complex environments.

Integrated

Facilities, construction, environmental, engineering, inspection, and technology expertise within one organization.

Agile

Flexible teams and solutions designed around the client's mission instead of forcing clients into a predefined operating model.

Innovative

Technology is applied where it improves safety, performance, reliability, cost, or decision-making.

Corporate Experience · Agencies Supported

Trusted Across Complex Federal Missions

IEI has performed prime and subcontract work supporting civilian, defense, diplomatic, research, healthcare, border, housing, and mission-critical federal environments.

  • General Services Administration
  • Department of Veterans Affairs
  • Department of Energy
  • Department of State
  • Department of Homeland Security
  • Department of Justice
  • Department of Defense
  • Department of Labor
  • U.S. Army
  • U.S. Navy
  • U.S. Air Force
  • U.S. Army Corps of Engineers
  • NAVFAC
  • U.S. Customs and Border Protection
  • U.S. Coast Guard
  • U.S. Secret Service
  • National Institutes of Health
  • NOAA
  • NASA
  • NIST
  • U.S. Forest Service
  • USDA
  • ATF
  • Federal Occupational Health
  • Architect of the Capitol
  • Bureau of Engraving and Printing

Agency names shown represent organizations for which IEI has performed work and do not imply endorsement.

Experience in the Field

Selected past performance.

Construction

U.S. Embassy Djibouti

Chiller Plant Replacement

$7.26M replacement of twin 415-ton chillers in a corrosive coastal environment with two-hour maximum shutdown windows.

Construction

Estes Kefauver Federal Complex

Mission-Critical MEP/BAS Modernization

Live MEP and BAS upgrades across a 1M+ SF complex serving 800+ federal employees with zero operational downtime.

Housing & Inspections

HUD Michigan

Field Services Management

Inspection, preservation, remediation and turnaround for 1,500+ single-family properties, with 100% of intake inspections within 24 hours.

Let's talk

Complex mission?
Bring IEI to the table.

Whether you're maintaining a mission-critical facility, addressing an environmental hazard, modernizing infrastructure, improving building performance, or exploring new technology, IEI brings the people and expertise needed to move the mission forward.