3T Design & Development LLC
Kansas City, MOAir. Land. Water.
Service detail: Air Quality and Environmental Compliance
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Air. Land. Water.
Service detail: Air Quality and Environmental Compliance

A&R Engineering is a civil engineering firm specializing in traffic and transportation engineering, headquartered in Marietta, Georgia. A&R has served clients across Georgia, South Carolina, and Alabama for over 20 years, guiding projects from due diligence through construction completion. The team works with developers, architects, attorneys, and public agencies on retail, residential, industrial, mixed-use, educational, and medical developments, delivering traffic impact studies, intersection and signal design, permitting support, construction oversight, and expert witness services.
Service detail: Traffic Studies

ADC's Track Record Speaks for Itself
Project: CHS Taxiways Repair
We Make Building Projects a Better Value
Project: Bay Pines VA Medical Center, Electronic Health Records Modernization

Designing America's Energy Lifelines
Service detail: Chemical and Process Design

Integrated Architecture & Engineering
Project: 5th Floor Med-Surg Inpatient Wing Gut & Remodel

Professional Project Management Group
Project: Harris County Emergency Corps Building Projects

Industrial Facility Engineering
Project: Calcium Carbonate Production Plant

Changing the World Since 1977
Service detail: Front-End Engineering & Design (FEED)

architects + engineers
Project: Big M Building Reimagining

Professional civil engineering services in New Mexico and Arizona
Project: Moenkopi Wash Drainage Improvements Project

Geotechnical Solutions for a Sustainable Future
Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project
Experience. Passion. Excellence.
Project: BD Utility Chiller Plant (Project Granite)

Advanced Infrastructure Design, Inc. (AID) is a consulting engineering practice established in 1998. Headquartered in Hamilton, New Jersey, with an office in Philadelphia, Pennsylvania, it is staffed by licensed Professional Engineers, scientists, researchers, and technicians. The practice specializes in transportation infrastructure preservation, deploying advanced non-destructive testing (NDT) technologies to evaluate and design solutions for roads, bridges, tunnels, airports, substructures, foundations, and parking structures. It is led by President Mojgan Mohtashami, PhD, MBA.
Service detail: Pavement Engineering

Built for real world project delivery
Service detail: Mechanical Engineering & HVAC Design
Pioneering the Past. Innovating the Future.
Project: World Shale Gas and Shale Oil Resource Assessment
Expert Counter-UAS Consulting Services
Service detail: Threat Assessment & Risk Analysis

Developing Our Community
Project: Marietta First Baptist Church

Powering Your Future
Service detail: Electrical Contracting

Innovative Architectural and Engineering Solutions
Project: Henry E. Rohlsen International Airport (STX) - Terminal Improvements, Phase 1
Industry-leading expertise with innovation and unparalleled work ethic
Service detail: Geotechnical Engineering & Subsurface Investigations

Providing unique multi-disciplinary engineering solutions
Project: Post-Fukushima Safe Shutdown and Restart Support

We Know How
Service detail: Mechanical Engineering

Innovating Environmental Solutions, Engineering a Better Tomorrow
Project: Engineering Solutions for Adaptive Reuse: Investigation to Approval