
4site Advisors Inc
We get it: Your vision. Your values. Results.
Project: Guard & Grace
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We get it: Your vision. Your values. Results.
Project: Guard & Grace
Achieving military interoperability
Service detail: Foreign Military Sales Support

Trusted Expertise in Mechanical, Electrical and Plumbing Engineering Design
Project: Glasshaus In The Grove
Efficient Management in Infrastructure Construction
Service detail: Construction Management and Inspection

Acoustical consulting services for transportation, aviation, and community noise
Project: Los Angeles-Pasadena Light Rail Transit Corridor EIR

Geotechnical Solutions for a Sustainable Future
Project: Caminada Headland Back Barrier Marsh Creation (BA-171) Project

Advantus Engineers is a Pittsburgh-based engineering consulting practice founded in 2004, specializing in building commissioning, sustainability consulting, MEP assessments, construction quality assurance, and environmental compliance. It serves public, institutional, and commercial clients across the Pittsburgh region. Over more than two decades, the practice has supported LEED certifications, water quality programs, and on-call MEP engineering for clients including the Pittsburgh Water and Sewer Authority and the David L. Lawrence Convention Center.
Project: Western Butler County Authority Administration Building
A leader in the field of air quality for over 40 years.
Project: National Park Service Air Quality Conditions & Trends Website
MEP & Sustainability Consulting
Project: Cleveland Clinic / CWRU - Health Education Campus

Raising the Quality Standard
Project: NY Botanical Garden Dome
Critical investigations, testing, analysis, and design for a more certain world
Project: Minnesota Zoo Treetop Trail

Trusted Solutions. Proven Expertise. Client Focused.
Project: Sinton ISD Elementary School 2023 Roof Replacement

Grow Your Agribusiness. Reduce Your Stress.
Project: DairyRidge Permitting and Compliance Support
Powering Insights, Empowering Solutions
Service detail: EPMS Design

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

Practical environmental and engineering solutions, delivered with precision and integrity.
Project: Flood Risk Management Projects VE Study

Building a Better Texas
Project: US 77 Geotechnical Investigation
Services and Solutions Optimized for Mission Success
Project: U.S. Army Office of Energy Initiatives (OEI) Project Support

Customer Centric. Industry Experts. Inspired Solutions.
Project: Transforming Aviation Testing Facilities for Enhanced Performance

From Vision to Reality
Project: Port of Oakland Program Management Services
Specialized test engineering, remote data acquisition, and physics-based rail modeling
Service detail: Test Engineering

Northern California Water Solutions
Service detail: Sanitary Engineering Consulting

Engineered Noise & Vibration Control. Measured Results.
Project: MIT W1 Building Renovation

Build on a Solid Foundation!
Service detail: Geotechnical Consulting