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For over a quarter of a Century, Cooper & Associates LLC has provided total engineering, support engineering and project management throughout the United States and around the World. We are a competitively-priced consulting engineering firm using diverse experience, unique approaches and state of the art technology that result in real world design solutions.

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Focus on Value Engineering

With focus on Value Engineering and Innovative solutions in design and engineering, Cooper & Associates aims to save cost for the client and at the same time deliver projects on schedule. Customer's needs and requirements are always on priority during project execution.

Well Balanced Team

Well balanced project teams of highly experienced discipline leads, project managers and young & energetic engineers have helped us deliver complex projects successfully. Over 30% of our manpower has more than 10 years of experience.

Flexibility, Support, & Responsiveness

Project teams at Cooper & Associates are flexible and adaptable to the changing requirements of clients with great sense of responsibility. Global network of our offices and partners enables our customer to have immediate access to our expertise and specialized services.

Mission Statement

We are a multi-disciplinary engineering firm offering comprehensive design solutions. Our commitment is for excellence in design, attention to detail and value for money. Customer satisfaction is a priority and we will work with your business to ensure project delivery is on time and on budget.

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Civil Engineering

Design, construction, and maintenance of the physical and naturally built environment, including works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, and railways.

Electrical Engineering

The discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.

Mechanical Engineering

The discipline that applies engineering, physics, engineering mathematics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems.

Utilities Engineering

Utilities engineers work in the energy industry, including electricity, gas, and water. These professionals help energy producers to monitor and create more efficient forms of energy.

Structural Engineering

Part of civil engineering in which structural engineers are educated to create the 'bones and muscles' that create the form and shape of man made structures.

HVAC Engineering

A sub-discipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer.

Process Piping Engineering

Piping design, the detailed specification of the physical piping layout within a process plant or commercial building.

Industrial Engineering

The optimization of complex processes, systems, or organizations. Industrial engineers work to eliminate waste of time, money, materials, person-hours, machine time, energy and other resources that do not generate value.

Find out the latest news?

Quad Plus Adds Seven New Synchronous Motor Field Application Systems at The Chicago Water Departments South Water Purification Plant

Quad Plus LLC has completed their installation portion of the 45 million dollar Electrical Distribution revamp of The City of Chicago’s South Water Purification Plant. This first phase of the project was to install 9 new PCP’s (Pump Control Panels),…

Installation of a Toroidal Plasma Device Known as HIDRA

The University of Illinois at Urbana-Champaign’s Center for Plasma-Material Interactions (CPMI) looked to Quad Plus Senior Engineer Kent Wegley for expertise in safely installing a toroidal plasma device known as HIDRA. Combining capabilities of a tokamak and a stellarator, HIDRA…

Cooper & Associates Designs IKO Hillsboro Manufacturing Plant

Cooper & Associates designed 100% of this factory for IKO. We worked with IKO to engineer all elements from soil samples (expansive clay), site layout for rail and truck, foundations, steel, tanks, silos, material delivery, machine foundations, piping, and thermal…


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55 W 22nd St Suite 240

Lombard, IL 60148


(630) 613-8018