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 1 million sq. ft. of manufacturing 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.

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

Services and Features


Roeslein & Associates provides consulting, procurement, and project management services on top of its engineering, manufacturing and construction capabilities. 
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Online Global Parts Store


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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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

Exterior view of Servtech, offering oil and gas services and equipment

Expanding Capabilities and Square Footage to Support the Oil and Gas Industry

Roeslein’s Denver operations, located in Northglenn, Colorado, have officially relocated to Louisville, Colorado, to be housed under roof with Servtech, Inc., a Roeslein company.

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Roeslein New Products Group LEAN Tagging at RMF 2022 (1)

Focusing on LEAN Manufacturing – From Employee Knowledge to Product Configuration

Roeslein received a grant for a full day of lean training for 20 employees led by IMEC. This interactive workshop combined comprehensive classroom instruction with the simulation of a production facility.

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Rendering of new facility


The renovations to the current facilities will allow Roeslein’s Poland team to better organize its departments and workflow, as well as allow an increase in production capacity and the manufacturing of larger modules.

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Bringing New
Technology to Market:
UV LED & Power Supply Upgrade

Roeslein & Associates is bringing new technology to market by transforming its proprietary Ultra Violet Bottom Coating System (UVBC) with a reliable, sustainable, and proven UV LED curing and control system update.

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Why Prefabrication, Preassembly, and Modularization?

Off-Site Manufacturing

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.

Ready to work with Roeslein?

Business Development Team

John DeMoulin VP, Business Development & Marketing
Container Manufacturing, Traditional Energy, Renewables


Ron Ragan Director of Business Development
Container Manufacturing


Rob Ellwood-Digel Senior Business Development Manager


Joe Guerhing Business Development Manager
Traditional Energy


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

Looking Back at 2021 with Roeslein
Roeslein on Manufacturing Marvels