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Our Leadership

Rob Matteson, CIPE, LEED® AP
Principal
Rob is a Principal, Senior Mechanical Designer,
and Team Leader at Interface. Since joining the
firm in 1979, he has been responsible for the
design of HVAC systems and plumbing systems. Rob
participates in the investigations and studies,
and provides design and construction administration
for the development of various mechanical systems.
He also works with engineers to prepare cost estimates
and specifications. His range of experience includes
K-12 and higher education, utilities, office buildings,
retail and restaurant outlets, medical and municipal
facilities. |
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Omid Nabipoor,
LEED® AP
President

David Pickett, PE,
LEED® AP
Senior Vice President

Andrew Briones
Associate Principal

David Chesley, PE,
RCDD, LEED® AP
Associate Principal

Joel D. Cruz
Principal

Steven Dacus, PE
Associate Principal

Paul DuPont, PE
Principal

Robert Dupuy, LC, IALD
Associate Principal

Issam Elsahili
Principal

Andy Frichtl, PE
Principal

Jonathan F. Gray,
CIPE
Principal

Hormoz Janssens, PE,
LEED® AP
Principal

Creighton Kearns,
PE
Principal

Stuart Lindsay,
LEED® AP
Principal

Beverly Markstrom
Principal

Rob Matteson, CIPE,
LEED® AP
Principal

John McMichael, PE
Principal

Philip Michaels,
PE, LEED®
AP
Principal

Nicholas P. Rich,
PE,
LEED® AP
Principal
Douglas C. Smith, PE,
LEED AP
Associate Principal
David A. Williams,
PE,
LEED AP
Associate Principal |
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