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  • sales@roeslein.com

Number #1

In Total Systems Integration

Leading Provider

Of Unitized & Preassembled Systems

Why Roeslein & Associates?

Roeslein differentiates itself from traditional engineering firms by providing complete solutions for project implementation by emphasizing a modular engineering strategy early in the project-planning process.

With more than 600,000 sq. ft. of fabrication space worldwide, modules are precisely engineered for ease in transport via truck, rail, or sea. Roeslein’s modular approach can successfully be applied to a variety of industries.

With office locations worldwide and projects in more than 60+ countries across 6 continents, Roeslein is ideally suited to provide modular solutions to a global client base, while providing exceptional value in controlled project risk, cost, schedule, and increased overall safety and quality.

World Map Locations_blue map

With 30 years of turnkey project execution, Roeslein is an industry leader in engineering, fabrication, and installation of modular process systems.

Services and Features


Roeslein & Associates provides consulting, procurement, and project management services on top of its engineering, fabrication and construction capabilities. 
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Never let your operations come to a halt, be prepared when the unexpected happens with Roeslein’s comprehensive & easy to navigate online parts store. 
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Roeslein’s lifecycle support division serves as a strategic partner to clients by offering field services, assessments, training, upgrades/modifications and more. 
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In addition to offering fully integrated turnkey systems, Roeslein offers a variety of product solutions that are customized to client’s needs & specifications. 
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Featured News

Victaulic 100 Years Award

Roeslein & Associates is proud to announce that they have been awarded one of Victaulic’s 100 Years Award.

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As their sixth year as an employee-owned company comes to an end, Roeslein & Associates is celebrating National ESOP Month.

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Roeslein Becomes Enterprise Integrator through Inductive Automation

Roeslein & Associates is happy to announce that they have joined the Enterprise Level Integrator Program by Inductive Automation.

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Ownership Group

Roeslein & Associates has been named one of the Top 150 Privately Help Companies in St. Louis by the St. Louis Business Journal.

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Keep up to date with where we are and what we’re up to – Follow us on social media

Why Prefabrication, Preassembly, and Modularization?

The key to success in prefabricated, preassembled, modularized project execution lies in thorough front-end planning. Roeslein guides clients through the early stages of a project by performing capital budgeting, feasibility studies, marketing planning, and process flow diagrams to ensure a smooth project implementation.

Roeslein’s unique approach to the modular design-build construction process is to provide clients with a high-performance, integrated solution that allows for a greater return on invested capital by improving design and construction phase productivity, enhancing project quality, and speeding up systems and plant operations deployment.

Roeslein’s project management teams guide projects from conceptual design all the way through to project start-up and commissioning. Acute involvement in all aspects of project execution allows Roeslein’s project management team to cohesively manage customer-driven metrics of cost, schedule, and overall project quality.

Because Roeslein separates process implementation from facility construction the effects of delays and unforeseen circumstances on installation timetables are minimized. No matter what the project’s size or location Roeslein’s modularized, prefabricated, and preassembled approach provides consistency in the quality of the design, fabrication, installation and, most importantly, the results.

“When you practice something over and over again until it’s perfect, you end up with a team that’s capable of so much more than just the sum of its parts…”

Rudi Roeslein | Chairman & CEO Roeslein & Associates

Cantech Grand Tour

Roeslein will be attending the conference February 17-19, 2020 in New Delhi, India.
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DUG Rockies

Roeslein will be attending the conference February 18-19, 2020 in Denver, CO.
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Roeslein will be attending the conference March 4-6, 2020 in Sao Paulo, Brazil. 
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Roeslein will be attending the conference May 5-9, 2020 in Essen, Germany.

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