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About Alt & Witzig Engineering

Proven.

For decades, Alt & Witzig Engineering has been the geotechnical, environmental, and construction testing partner behind demanding projects across the Midwest. We help owners, developers, architects, engineers, and contractors move from early due diligence to final inspection with one team, practical guidance, and proven results.
✓ Proven

What We Do

Engineering Support for the Full Project Lifecycle

Alt & Witzig delivers integrated engineering and field services that support projects from planning through construction. With geotechnical engineering, environmental services, construction testing and special inspections, and ground penetrating radar under one roof, we give clients a single partner for the critical decisions that shape schedule, cost, safety, and long-term performance.

Geotechnical Engineering

Subsurface investigations, soil borings, geotechnical reports, and foundation recommendations that help project teams understand site conditions before design and construction begin. Our engineers provide practical guidance based on real field data, not assumptions.

Environmental Services

Phase I and Phase II Environmental Site Assessments, wetlands-related services, and due diligence support designed to keep transactions and development plans moving. We deliver clear findings, responsive communication, and documentation that supports informed decisions.

Construction Testing & Special Inspections

On-site testing, inspection, and reporting for concrete, soils, structural systems, and code-required special inspections. Our teams support active jobsites with the responsiveness and reliability that complex construction schedules demand.

+

Years in the Midwest

+

Professionals

Offices

Who We Serve

Built for Complex, High-Stakes Projects

Alt & Witzig supports a wide range of project types, including commercial, industrial, healthcare, institutional, infrastructure, mixed-use, hospitality, residential, and mission-critical facilities. Whether the challenge is subsurface uncertainty, environmental due diligence, inspection compliance, or schedule pressure in the field, our role is the same: provide dependable technical insight that helps projects move forward with confidence.

Why Alt & Witzig

A Technical Partner, Not Just a Vendor

What sets Alt & Witzig apart is the combination of engineering depth, field responsiveness, and continuity across disciplines. Clients work with professionals who understand the project, communicate clearly, and stay accountable from proposal through final deliverable.
  • One firm, every stage.
    Geotechnical, environmental, testing, and inspection services work together as part of one coordinated process.
  • Responsive on real project timelines.
    We support active schedules with teams that understand urgency in both preconstruction and the field.
  • Experienced professionals, practical recommendations.
    Our work is grounded in technical rigor and shaped by real-world constructability.
  • Long-term client relationships.
    Repeat business reflects the trust clients place in our people, reporting, and follow-through.
Two engineers in hard hats and high-vis vests reviewing data on a laptop in front of an excavator.

Where we work

Regional Reach, Consistent Support

Alt & Witzig serves clients across multiple markets with the capacity to support both local projects and multi-location portfolios. Our network of offices allows clients to maintain one engineering relationship across regions while receiving responsive service and local field support where the work is happening.
Ohio
Cincinnati
Columbus
West Chester
Indiana
Indianapolis (HQ)
Lafayette
Fort Wayne
Evansville
Merrillville
Kentucky
Hebron
Louisville

Ready to Talk About Your Project?

Whether you are in early due diligence, design development, or active construction, Alt & Witzig is ready to support your next project with practical engineering insight and dependable field services. Tell us what you are building, and our team will respond promptly.
Alt Witzig logo
Geotechnical, environmental, and construction testing since 1975.
Get in touch
Alt & Witzig Engineering
4105 West 99th Street
Carmel, Indiana 46032
(317) 875-7000
© 2026 Alt & Witzig Engineering. All rights reserved.