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Day & Zimmermann brings big ideas to life by providing innovative engineering, procurement, construction management, and plant maintenance services to process and industrial customers.


Flexible execution strategies include site-based teams, in-plant staff augmentation and seconded personnel, and office-based project execution.

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Projects & Construction

Our teams are familiar with, and have worked on, virtually every primary and secondary plant system in both outage and non-outage environments, routinely executing critical and near-critical path work scopes.

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Maintenance & Modifications

Maintenance & Modifications

Our Total Accountability Model provides a single point of contact driving accountability across safety, human performance, cost, schedule, quality, and resource supply.

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How Can We Help You?

Please contact us for additional information or any questions you may have.   We will follow up with you as requested.

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Markets We Serve


Specialty chemicals, petrochemicals, bulk chemicals, fine chemicals, and synthetic rubbers.

Textiles & Fibers

Wovens, non-wovens, fibers, nylons, and films.

Life Sciences

Pharmaceutical, medical devices, agricultural, and biotechnology.

U.S. Government

Design of secure, mission-driven facilities.

Consumer Products

Supports the production, storage, and packaging of a wide range of consumer products.

What We Do

Capital Effective Project Delivery.

Capfx® is our process for delivering capital effectiveness, offering the opportunity for predictable cost savings compared to a conventional approach to project delivery.

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P&I Assembly Process
Day & Zimmermann Bayer Crop Sciences

D&Z Project for Bayer Achieves Success with Significant Time and Cost Savings

Day & Zimmermann (D&Z) provided engineering (FEL3 and detailed design), procurement, and construction support for a two-year capital project that enabled production of a new product for Bayer Crop Science. Time-to-market was a key driver towards the successful completion of this schedule-driven project.

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Day & Zimmermann Chemical Production Plant

Large U.S. chemical production plant chooses D&Z to convert their industrial boilers to meet EPA guidelines

With critical schedule constraints to convert their coal-fired industrial boilers to meet EPA guidelines, our client selected Day & Zimmermann as its contractor – continuing a 30-year relationship at their North American sites.

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