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Providing expertise in engineering and construction management to the bulk material handling industry since 1984.

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SEI is a professional engineering and construction management firm with expertise in the design of bulk material handling and storage facilities.

Since being founded in 1984 by Frank A. Mamone and Mostafa Mahmoud, SEI has been a leader in the industry working on projects ranging from a single storage shed to a complex, multiple transfer, overland belt conveyor system. SEI prides itself on forming and fostering long term relationships with our clients to provide vital services facilitating the meeting of market demands.

Contact us today to discuss how we can help you!



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Established in 1984



PEs in 20 States


SEs in Illinois 

Members of ASCE, ACI, SEI



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Feasibility Studies

We work closely with our customers to determine the optimal and most cost effective layouts to meet their project goals. We use our experience and expertise in the field along with your company standards and input to create a preliminary design and cost estimate that is ready for final design engineering. Our focus is making sure our clients are happy, within their construction budget, and that the project is efficiently designed to meet their material handling needs.

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Engineering and Design

Our engineering experience is complemented by an understanding and appreciation for each individual project. This experience brings a customized response to each project and the engineering and planning concerns that may arise. We can provide the required civil, structural, mechanical and electrical design to take your project from preliminary design through final design and start-up.


Construction Management

We provide construction management services congruent with the design phase or as a stand alone service. Our services include a combination of in-office and on-site management.  We provide bid packages, scope of work, shop drawing review, field management and more, all tailored to the specific project needs.


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For any inquiries or questions, please call:

740-657-1860 or fill out the following form

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65 Hidden Ravines Drive, Suite 200

Powell, OH 43065

Tel: 740-657-1860

Fax: 740-657-1870


SEI is not currently hiring.  If interested in a career with us you can send your resume to and we will hold for future considerations.

Call to discuss your project:


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