Number #1

In Total Systems Integration

Leading Provider

Of Unitized & Preassembled Systems
  • English
  • Chinese (Simplified)
  • Polish
  • Portuguese (Brazil)
  • Spanish
  • Global
  • +1 314 729 0055

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.

Map of Roeslein Locations

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

Roeslein Brazil

As Roeslein celebrates its 30th anniversary, they are pleased to announce the opening of their new engineering and manufacturing operations in the São Paulo region of Brazil.

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Roeslein & Associates Women In Construction Week

Roeslein & Associates, Inc. is excited to be celebrating Women in Construction Week from March 1st-7th, 2020.

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Roeslein Poland Sponsorship

Roeslein Poland Supports Local School Teams on Their Journey towards Excellence

Recently, Roeslein Poland provided some financial support and encouragement to the ATLAS Sports Club of the Elementary Public School in Wola Dębińska, Poland.

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Fostering Futures gifts

Roeslein & Associates was able to make the holidays a little more special by collecting money and purchasing gifts for 3 brothers through Fostering Futures.

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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

CURT Off-Site Construction Summit

Roeslein will be attending the conference August 24-26, 2020 in Philedelphia, PA.
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Ignition Conference


Roeslein will be attending the conference September 15-17, 2020 in Folsum, CA.
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The Canmaker Summit

Roeslein will be attending the conference October 7-8, 2020 in Prague, Czech Republic. 
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Asia CanTech


Roeslein will be attending the conference November 9-11, 2020 in Ho Chi Minh City, Vietnam.

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