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About Us

American Engineering Testing Inc. (AET) is an employee-owned corporation providing geotechnical, environmental, materials and forensics consulting and testing services to public and private sector clients in a broad spectrum of industries.

We have built our reputation on experience, quality, and fulfilling client requirements.  Many of our engineers and certified technicians, including principals who are actively involved in project management, have decades of practical experience in their areas of specialization.  They also have access to an extraordinary accumulation of site data and construction history in the Upper Midwest, which proves useful as well as cost- and time-efficient on many projects.

As a consulting engineering company and independent laboratory, quality is the nature and purpose of all our services.  We test, analyze, monitor and inspect in order to document, verify and sometimes improve the design and construction effort.  To that end, we are accredited by the AASHTO Materials Reference Laboratory (AMRL) to perform geotechnical and construction services in accordance with ASTM: E329.  Our own in-house quality assurance/quality control program was established in 1993 to systematically and rigorously audit all departments and office/labs on test procedures, calibrations and test accuracies. 

Firm History

The firm was founded in 1971 and originally known as Geotechnical Engineering Corporation with offices in Roseville, Minnesota.  In 1989, the 22-person firm was purchased by the current principals. In early 1990, the business was renamed American Engineering Testing, Inc. and moved to its current facility in the Saint Paul Midway area. The move to a larger and more centrally located, five-acre site has facilitated phased growth in staff and service.

In the early 1990's, AET opened the first regional offices in Duluth and Mankato. Three years later, facilities in Rochester, Minnesota, and Wausau, Wisconsin, opened, followed by new regional office/labs in Marshall, Minnesota, and Pierre, Sioux Falls, and Rapid City, South Dakota. The Chanhassen (Minneapolis) office opened in 2005.

In 2006, AET bought the major assets of another leading consulting engineering firm, GME Consultants, and grew by 65 staff members. At the same time, we gained new office locations in Crosby, International Falls, Minnesota, and Menomonie, Wisconsin.

New in 2007, AET offers services from two new offices.  One in Bonita Springs, Florida (Fort Meyers area), and one in Rogers, Minnesota (northwest of the Minneapolis metro area).

The firm has more than 280 full-time employees in fifteen locations.  Forty three of the staff are licensed/registered professionals, typically professional engineers (PEs) or professional geologists (PGs).

Staff increases to approximately 330 in the construction season.

Personnel Type

Number of Individuals

Administrative Support Staff 39
CADD Technicians 1
Chemical Engineers 1
Chemists 1
Civil Engineers 6
Construction Inspectors 21
Drillers 28
Environmental Engineers 2
Environmental Scientists 10
Environmental Technicians 8
Foundation/Geotechnical Engineers 22
Geologists 18
Hydrogeologists 3
Materials Engineers 13
Mechanical Engineers 2
Nondestructive Testing Technicians 29
Pavement Engineers 2
Preservation/Restoration Engineers 2
Soils Engineers 14
Structural Engineers 1
Technician/Analyst 88

Proud to be an Affirmative Action and Equal Opportunity Employer

© 2008 American Engineering Testing, Inc.
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