DLZ Corporation

Innovative Ideas | Exceptional Design | Unmatched Client Service

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About the firm

DLZ Corporation is a large, multi-discipline architecture and engineering firm with over 100 years of A/E services history, headquartered in Columbus, Ohio. It brings a collaborative, multidisciplinary approach to professional services across transportation, water/wastewater, architecture, construction management, and land surveying. DLZ is ranked #143 in the ENR Top 500 Design Firms (2025) and #11 in ENR Midwest, with a diverse project portfolio spanning transportation, public safety, judicial, water infrastructure, parks, and institutional facilities across the Midwest and beyond.

Team
Large
Firm type
Architecture & Engineering · Electrical Engineering · Fire Protection Engineering · Land Surveying · Landscape Architecture · Mechanical Engineering · Structural Engineering · Transportation Engineering · Water / Wastewater Engineering

Credentials

LEED-Accredited Professionals on staff

People

Ram RajadhyakshaPresident, DLZ Corporation

Vicki Briggs-RasorChief Financial Officer

Amy MaloneHR Director

Capabilities

Transportation Engineering

Service website

DLZ keeps communities moving through the full range of transportation engineering - designing complex interchanges and highways, restoring historic bridges, developing traffic solutions, creating multiuse trails, and advancing transit systems.

  • Interchange and Highway Design
  • Bridge Design and Restoration
  • Trail Design
  • Roundabout Design and Public Education
  • Transit Systems
  • Traffic Solutions

Architecture

Service website

Responsive and sustainable architectural design for public and institutional facilities including correctional, judicial, police/fire/EMS, and higher education.

  • Correctional Facility Design
  • Judicial Facility Design
  • Police / Fire / EMS Facility Design
  • Complete Facility Design
  • Interior Design
  • Renovation / Restoration
  • Historic Restoration
  • ADA Compliance
  • LEED Consulting and Commissioning
  • Master Planning

Water & Wastewater Engineering

Service website

Design and consulting for water distribution, wastewater collection and treatment, and public works infrastructure.

  • Water Distribution System Design
  • Wastewater Collection and Treatment
  • Public Works Design

Construction Services

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Construction management, observation, scheduling, claims analysis, value engineering, and laboratory testing for transportation and utility projects.

  • Construction Management
  • Construction Observation
  • Scheduling
  • Claims Analysis
  • Value Engineering
  • Document Control
  • Risk Analysis
  • Field Quality Control
  • Laboratory Testing

Land Surveying

Service website

Precision surveying services across numerous states with more than 50 full-time field crews, including right-of-way acquisition, ALTA, boundary, topographic, and easement surveys.

  • ALTA/ASCM Land Title Surveys
  • Boundary Surveys
  • Topographic Surveys
  • Easement Surveys
  • Land and Right-of-Way Acquisition Surveys

Structural Engineering

Service website
  • Integrated Structural Design Supporting Dlz's Architecture
  • Transportation Projects
  • Covering New Construction
  • Renovation
  • Restoration Across Public
  • Institutional Building Types

Mechanical Engineering

Service website

HVAC, plumbing, and fire protection design for institutional and public facilities, delivered as part of DLZ's integrated architecture and engineering practice.

  • Plumbing / Fire Protection Design

Electrical Engineering

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Power systems and electrical design for public facilities and infrastructure projects, integrated within DLZ's multidisciplinary project teams.

Landscape Architecture

Service website
  • Landscape Architecture For Public Facilities
  • Parks
  • Civic Spaces

Program Management

Service website

Program management, needs assessments, feasibility studies, building security assessments, building programming, strategic planning, and life cycle cost analysis.

  • Needs Assessments
  • Feasibility Studies
  • Life Cycle Cost Analysis
  • Building Security Assessments
  • Staffing Analysis / Projections

Industries

Highways & Roads · Transportation · Wastewater · Water Supply · Public Safety · Justice & Corrections · Transit · Parks & Open Space · Sports & Recreation · Education · Healthcare · Government

Projects

Cooperativo PV Plant

San Carlos, Costa Rica · Water / Wastewater

Project details

Photovoltaic plant engineering in Costa Rica.