DEI Consulting Engineers

Since the inception of DEI Consulting Engineers in 1999, our company has continually built on our reputation of providing exceptional client service, innovative, cost-effective, and practical engineering solutions specifically designed for each individual project, and unmatched design documentation.

Leadership Team

Since May 2015, DEI Consulting Engineers has welcomed twelve Partners to the firm. These individuals provide commitment, experience, and depth to the team. They are responsible and continue to build upon the success that the firm has experienced since 1999.

Leon Demaiter, P.Eng.

President

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Jeremy Jackson, P.Eng.

Electrical Department Manager, Partner

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Michael Demaiter, P.Eng.

Mechanical Department Manager, Partner

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Heather Demaiter

Partner

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Matthew White, P.Eng.

Partner

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Mustafa Morsy, P.Eng. PMP, MASc, LEED GA

Partner

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Michael S. Pace, P.Eng.

Partner

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Ann Demaiter, P.Eng.

Partner

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Jason Legacy

Partner

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Steve Oatley

Partner

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Stephen Demaiter

Partner

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William Demaiter

Partner

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Jamie Lopes, CPO, CPI, NSPFI

Aquatic Department Manager

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DEI Consulting Engineers is centrally located in Southern Ontario with our head office located in Waterloo and a satellite office located in Hamilton.

Our Accessibility Policy



Waterloo Office

55 Northland Road
Waterloo, ON N2V 1Y8

T: 519-725-3555
F: 519-725-2515
E: admin@deiassociates.ca



Hamilton Office

7 Innovation Drive, Unit 245
Dundas, ON L9H 7H9

T: 519-725-3555
F: 519-725-2515
E: admin@deiassociates.ca

DEI Consulting Engineers is centrally located in Southern Ontario with our head office located in Waterloo and a satellite office located in Hamilton.

Our Accessibility Policy



Waterloo Office

55 Northland Road, Waterloo, ON N2V 1Y8
T: 519-725-3555 • F: 519-725-2515
E: admin@deiassociates.ca



Hamilton Office

7 Innovation Drive, Unit 245, Dundas, ON L9H 7H9
T: 519-725-3555 • F: 519-725-2515
E: admin@deiassociates.ca