Clients

SEI's clients have included:

Amman and Whitney, Inc.

Ang Associates, Inc.

U.S. Army Corps of Engineers

Conrail

C2 Architecture

Delaware River Port Authority (DRPA)

Edwards & Kelcey, Inc.

Erdman Anthony, Inc.

Eustace Engineering

Falls Township, Bucks County, Pennsylvania

Gannett Fleming, Inc.

Greenman-Pedersen, Inc.

Hardesty and Hanover, LLP

Holiday Inn

Intech Environmental Consulting, Inc.

Lichtenstein Consulting Engineers

Lower Bucks County Joint Municipal Authority 

Mackin Engineering Comapny

McCormick Taylor, Inc.

Michael Baker Jr., Inc.

National Railroad Passenger Corporation (AMTRAK)

Pennsylvania Department of Transportation (PennDOT)

Pennoni Associates Inc.

Philadelphia Regional Port Authority (PRPA)
Pickering, Corts & Summerson, Inc.

QBS International

Raytheon Infrastructure Services, Inc.

Sam's Club

Site-Blauvelt Engineers
STV, Inc.

URS Corporation
Wilbur Smith Associates, Inc.