Geotechnical & Engineering Services for Columbus and Central Ohio.

Subsurface investigations, soil borings, foundation design recommendations, and geotechnical reports. Our engineers have characterized soils across Franklin, Delaware, Licking, Union, Fairfield, Pickaway, and Madison Counties for decades. Central Ohio's glacial till sequences, Scioto River alluvial deposits, and variable shale and limestone bedrock are familiar territory — not variables that catch us off schedule.

Serving: Columbus · Dublin · Westerville · Grove City · Hilliard · Gahanna · Newark · New Albany · Delaware · Lancaster · Circleville and surrounding communities

Phase I and Phase II Environmental Site Assessments, wetlands delineation, and environmental due diligence per ASTM E1527-21. Ohio EPA and Army Corps familiarity. Lender-ready reports delivered by licensed environmental professionals with decades of Central Ohio practice — including brownfield redevelopment sites in Columbus's evolving urban neighborhoods and industrial corridors.

Serving: Greater Columbus Metro · Franklin County · Delaware County · Licking County · Union County · Fairfield County · Pickaway County · Madison County

On-site concrete testing, soils and compaction inspection, structural steel, post-tensioned concrete, firestop, masonry, and IBC Chapter 17 special inspections. Same-day concrete break results. Standard reports in 5–7 days. Certified technicians available on your pour schedule — not ours. Serving healthcare, high-rise, institutional, industrial, and data center projects across the region.

Serving: Downtown Columbus · Short North · University District · Dublin · Westerville · New Albany · the I-270 Outerbelt · Licking County industrial corridors

Downtown Columbus — High-Rise & Mixed-Use

The Columbus downtown core continues to add density at a pace that few Midwest cities can match. The 32-story Merchant Building at North Market ($430M), the Capitol Square redevelopment ($600M), and ongoing investment along High Street and the Short North corridor all require the kind of engineering depth — post-tensioned concrete, structural steel at height, complex IBC Chapter 17 programs — that separates Alt & Witzig from commodity CMT providers. Our project history in Columbus's urban core is a matter of record.

Healthcare & Academic Medical Construction

Central Ohio is home to one of the most ambitious concentrations of healthcare capital construction in the United States. Ohio State Wexner Medical Center's 26-story hospital tower, Nationwide Children's Hospital's $3.3 billion campus expansion, and OhioHealth's ongoing capital programs across the system represent a sustained, multi-year demand for the kind of engineering precision and reporting discipline that Alt & Witzig has built its reputation on. Healthcare construction doesn't tolerate latency — and neither do we.

Licking County & The Intel Mega-Site

Intel's $20 billion semiconductor manufacturing investment in Licking County — a nearly 1,000-acre mega-site near New Albany capable of accommodating eight chip factories at full build-out — is the largest single economic development investment in Ohio history. The geotechnical, environmental, and construction testing demand generated by this project and its supplier ecosystem will define the Licking County engineering market for the next decade. Our proximity and regional capacity position Alt & Witzig as a natural partner for projects in this corridor.

Data Center & Technology Infrastructure

Central Ohio has become one of the nation's premier data center markets — driven by low power costs, fiber infrastructure, and proximity to major population centers. Data center construction demands rigorous geotechnical investigation for heavy equipment loads, precise compaction testing for raised floor systems, and special inspections calibrated to the tolerance standards of mission-critical facilities. Alt & Witzig's Columbus team has the certifications, staffing depth, and technical experience to serve this demanding and growing segment.

Delaware County Suburban Growth

Dublin, Powell, Lewis Center, and the broader Delaware County market are experiencing some of the most sustained residential, commercial, and mixed-use growth in the state — driven by Columbus's expanding suburban footprint and consistent in-migration. Phase I ESAs for every acquisition, geotechnical investigation for every new build, and compaction testing for every subdivision — our team supports the full development cycle in one of Ohio's fastest-growing counties, without a second vendor.

Fairfield & Pickaway County Development

Lancaster, Pickerington, Circleville, and the US-33 corridor south of Columbus represent a growing frontier of commercial, light industrial, and residential development pushed outward by Columbus's expanding metropolitan footprint. Our Columbus office covers the full southern Central Ohio market — from Fairfield County's growing commercial nodes to Pickaway County's agricultural and infrastructure projects — as a natural extension of our Franklin County practice.

Franklin County

Delaware County

Licking County

Union County

Fairfield County

Pickaway County

Madison County

Knox County

Morrow County