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« About Us »

Located in Central Iowa, Allender Butzke Engineers Inc. (ABE) provides geotechnical, environmental, and construction quality control services to both public and private clients in Iowa and the surrounding states. Our public clients include schools and municipal, county, state, and federal agencies, while private clients include personal owners, developers, industries, churches, and commercial retailers. This involves teaming up with architects, other engineers, and contractors to complement their design and construction expertise.

Our corporate philosophy at all levels of service is to provide a high level of technical expertise responsive to the project schedule at competitive rates. Whether it's our experienced geotechnical engineers examining a site's slope stability, our environmentalists evaluating water quality for a triathlon, or our construction quality control personnel conducting I.B.C. special inspections on the construction of a high rise office building, Allender Butzke Engineers provides the necessary solutions to increase your chances of success.

The value of our services has been recognized by our clients resulting in the majority of our business centered around repeat customer relationships, which leads into new service opportunities by referrals. We continue to build our reputation on each new project as we adhere to striving for practical, innovative and cost effective solutions to the owner’s design and construction challenges.

« Company History »

Allender Butzke Engineers Inc. was founded in May of 1992, under the direction of Harry Allender, P.E. and Milton Butzke, P.E., now having over 80 years of combined geotechnical and construction quality control experience in Iowa. David Logemann, P.E. and Hamid Feiz, P.E., providing additional geotechnical engineering expertise, also partnered in establishing this new organization that furnishes geotechnical, environmental, and construction quality control services.

Our Midwest consulting experience dates back to 1963 when Mr. Allender, as a co-owner, founded Des Moines Testing Laboratory which he consolidated with Patzig Testing Laboratories in 1970. Mr. Butzke joined Mr. Allender in 1974, subsequently becoming an owner in Patzig Testing Laboratories Co. Inc. until the company was sold in 1989 to Twin City Testing (Huntingdon Engineering and Environmental now Stork). ABE grew from the original four founding owners in 1992 to 28 full-time employees in less than 3 years.

ABE currently averages 35 to 40 employees with many of our engineers and geologists having Masters degrees in their respective fields. Our professional and technical staff attend conferences and seminars to stay abreast of new technologies and procedures to provide our clients with the highest levels of technology in demand for today's projects. We own our test drilling rigs, in-situ testing equipment, and an array of modern, state-of-the-art laboratory and field testing equipment.

« Equipment »

We own our test drilling rigs, in-situ testing equipment, and an array of modern, state-of-the-art laboratory and field testing equipment.

Click here to view the gallery of equipment.

« Accreditations »

ABE has completed the AASHTO Accreditation Program (AAP) which recognizes the competency of a testing laboratory in construction materials testing. The AAP conducts an initial on-site laboratory assessment which includes an examination of the testing apparatus and observation of of the test procedures.

Periodically during the year, proficiency samples are sent to ABE by the AASHTO Materials Reference Laboratory (AMRL) and the Cement and Concrete Reference Laboratory (CCRL) to check both the instruments and operators under actual testing conditions. ABE is accredited in various soil, aggregate and Portland Cement Concrete tests.