CANADA
407 East Construction General Partnership
Allnorth Consultants Ltd.
Amec Foster Wheeler
Armtec
Associated Engineering
Axys Consultants inc.
Bluerock Engineering Ltd.
BPDL inc.
Brownlee Beaton Kreke (Saskatoon) Ltd.
Buckland & Taylor Ltd
Burnco Rock Products Limited
Canadian Department of National Defence
CIMA CANADA INC
Cohos Evamy
Coreslab Structures (Ont) Inc.
D.M. Wills Associates Limited
D/S Design Solutions
Darren B Towells Inc.
Dave Bernardin, P.Eng.
Delcom Engineering
DGH Engineering Ltd
Enconcept Design Inc.
Expocrete Concrete Products
fga Consulting Engineers
Force Engineering Group Inc.
Genivar Inc
Granite Prestressed Concrete Ltd.
Groupe Tremca inc.
Haddad Morgan and Associates Ltd.
Hanson Pressure Pipe
Hanuschak Consultants Inc.
Hatch Mott MacDonald Group
Haywood Concrete
Herold Engineering Limited
IBI Group
IES Associates
ISL Engineering and Land Services Ltd.
JB McDonald & Associates Ltd.
K. Smart Associates Limited
Kassian Dyck & Associates
Kluchert & Associates Inc.
Kowalchuk Consulting Engineers Ltd.
Krahn Engineering Ltd.
Lafarge Canada Inc.
M.M. Johnson Ltd.
McElhanney Consulting Services Ltd.
Modern Mosaic Ltd
Morrison Hershfield
Most Engineering (2001) Ltd.
Mott MacDonald
MTE Consultants Inc
Munro Ltd.
Prakash Engineering Ltd.
Precast Design Solutions Inc.
Prestressed Systems Incorporated
QR Engineering Ltd.
R. J. Burnside & Associates Ltd.
RIZZ Engineering Inc.
Schokbéton Québec Inc.
Silverstone Precast Inc.
SNC-Lavalin Inc.
Sound Engineering Inc.
Spriet Associates London Limited
Stantec Consulting Ltd
Strescon Limited
Stubbe's Precast
Tower Engineering Group
UMA Engineering Ltd
URS Canada Inc.
Visco Engineering Inc.
Wolfrom Engineering Ltd.
WSP Canada inc.
UNITED STATES OF AMERICA
ABSG Consulting Inc
ADTEK Engineers
AES Colorado, Ltd
AJG Design Consultants
Alber & Rice, Inc.
Alberto L. Marrero Figarella, PE
Alfred Miller Contracting
ALTA Construction Inc.
Ambrose Engineering, Inc.
American Constructioneers, LLC
American Precast LLC
Anderson Perry & Associates
Arno Rinas & Associates
Arnold & O'Sheridan, Inc.
ARSEE Engineers, Inc.
ATMI Precast
Baldridge & Associates Structural Engineering, Inc.
Bayshore Concrete Products
Beaudette Consulting Engineers, Inc.
Bethlehem Construction Co
Beton-Stahl, Inc
Blue Ridge Design, Inc.
BR Architects & Engineers
Breisch & Associates, Inc.
Brett Woodroof Engineering
Buchanan Engineering Group
Buell Fryer McReynolds Jahed, Inc.
C.R.I. Engineering
Cary Kopczynski & Co.
Cedar Corporation
CEG
Central Pre-Mix Prestress Co.
CH2M HILL
Childs Engineering Corp
Civilsmith Engineering Inc.
CKR Engineers
Clark Pacific
Coffman Engineers, Inc.
Computerized Structural Design, S.C.
Con-Fab California Corporation
Conewago Enterprises, Inc.
Consulting Engineers Group, Inc.
Consultora Vera & asoc.
Coreslab Structures Atlanta Inc
Coreslab Structures, LA (Inc)
County Materials Corp
Cretex Concrete Products North, Inc
CSA Group, Inc.
CTU Precast
Culp & Tanner, Inc.
D.A. Sheppard Consulting S.E., Inc.
David Bugni & Associates
DCI Engineers
DiLeo Engineering, L.L.C.
DRL Drafting and Design
Dunn Associates
Dutchland, Inc.
East Texas Precast Company, Ltd.
EnCon Design LLC
Engineering Solutions, LLC
Engineers Northwest
Englekirk
EPANG ENGINEERING INC.
Ericksen Roed & Associates
ET Engineering, Inc.
Excel Engineering, Inc.
Fabcon
Fadjar Kusumo-R
FDG Incorporated
G&S Structural Engineers
Gage Brothers Concrete Products, Inc
GATE Information Systems
Gate Precast
GPRM Prestress
GRAEF-USA
Habib & Associates
Halcrow, Inc.
Hanlon Engineering, Inc
Hanson Associates, PC
Hanson Structural Precast
Hatch Mott MacDonald
HavTek
Hessler Engineering
Heyer Engineering, PC
Hoyo de Lima Industrial, C por A.
ICM, C. por A.
InfraStructure, LLC
Iowa Prestressed Concrete Inc.
J & M Structural Engineers LLC
J3 Engineering Group
JCA Engineering, LLC
Jessen-Wright Structural Engineers
JP Carrara & Sons
Justin W. Capp Engineer and Design
Kaas Technical Services, Inc.
KBAA Structural Design
Kerkstra Precast
Kiewit Engineering Group
KPFF Consulting Engineers
Lacy & Ebeling Engineering, Inc.
LG Design, Inc
LINK Engineering, LLC
MC Precast, Inc.
McMullan & Associates, Inc.
McNamara-Salvia Inc.
Meier Enterprises Inc.
Metromont Corporation
Meyer Consulting Engineers
Mid-State Precast, L.P.
Midstates Concrete Industries
Midwest Structure Engineering
Miyamoto International, Inc.
MKEC Engineering Consultants, Inc.
Molin Concrete Products
Morris & Ritchie Associates, Inc.
Nakaki Structural Design Inc.
Nordyke Design Group, Inc.
NRW Engineering
Old Castle Precast
Orion Marine Group, Inc.
Owell Precast LLC.
PDM Precast
Pease Borst & Associates, LLC
Pittsburgh Flexicore Co., Inc.
Precast Design Services LLC
Precast Management Corporation
Precast Systems Engineering, LLC
Principal Engineering LLC
Professional Engineering Consultants, P.A.
Raths, Raths & Johnson, Inc.
Reaveley Engineers
Reigstad & Associates
Roberts Engineering PLLC
Rocky Mountain Prestress
Ross Bryan Associates, Inc.
Royal Concrete Concepts
Sandman Structural Engineers
Seattle Structural
Simon Design Engineering, LLC
Spancrete Industries Inc.
Stehler Structural Engineering
Steinbicker & Associates, Inc.
Structural Associates, Inc.
Structural Concepts, Inc.
Structural Engineering Consultants, LLC
Structural Enginuity Inc
Structural Prestressed Industries, Inc
Structural Services, Inc.
SYM Engineers LLC
TEKTON Engineers
Tetra Tech/KCM, Inc.
Thornton Tomasetti, Inc.
Timothy Haahs and Associates
Tindall Corporation
Top Tier Consulting, LLC
Total Precast Design, LLC
TRU Engineering, P.C.
Vector Structures
Walker Parking Consultants
Watson Structural Engineering
Watts Constructors, LLC
Weisware, LLC
Wells Concrete
Welsch Engineering, Inc.
Whitney Bailey Cox & Magnani, LLC
Zahl-Ford, Inc.
MEXICO
Alonso & Asociados
Arenas y Bloques del Caribe SA de CV
AWNER
Civilis Ingenium
Grupo Constructor Sepsa, S.A. de C.V.
Grupo ICA S.A. de C.V.
Impulsora Tlaxcalteca de Industrias, S. A de C. V
Ingenieria Estructural y Pref., S.A. de C.V.
Leon Carlos Corona Copado
Predecon S. de R.L. de C.V.
Prefabricados Y Postensados Pret
Prefabricados y Soluciones, S.A.  de C.V.
Pretencreto S.A. De C.V.
Salcons Ingenieria SA DE CV
Sistemas Optimos Constructivos SA de CV
Valerio Estructuras
Viaducto Bicentenario S.A. DE C.V. - GRUPO OHL
AUSTRALIA & NEW ZEALAND
ADG Engineers (Aust) Pty Ltd, Australia Bruce Lemcke Engineering Pty Ltd, Australia Delta Corporation, Australia GHD, Australia Hollow Core Concrete Pty. Ltd., Australia LendLease Engineering, Australia Mundra Port Pty Ltd., Australia Pitt & Sherry, Australia Rescrete Industries, Australia Sinclair Knight Merz, Australia Structural Concrete Industries, Australia Structures Engineering Co, Australia Tevere Pty Ltd, Australia Wallbridge and Gilbert Consulting Engineers, Australia WorleyParsons Ltd, Australia Antro Enterprises Limited, New Zealand CG Hudson Consulting Ltd, New Zealand Fletcher Building Holdings Ltd, New Zealand Redco NZ Ltd, New Zealand
SOUTH AND CENTRAL AMERICA
I.C.E Group Company, Barbados
Preconco Ltd., Barbados
Moldar Projetos de Engenharia, Brasil
Premo Construções e Empreendimentos SA, Brasil
GTP Grupo Técnico de Projetos, Brazil
Incopre Engenharia e Comercio S.A, Brazil
Mendes Ferraz, Brazil
Precon industrial S.A., Brazil
Agregados Garantizados del Norte, Colombia
ATTECO, Dominican Republic
Prefabricados, s.a.s., Dominican Republic
Samuel S. Conde & Associates, Dominican Republic
Armada del Ecuador, Ecuador
Consultora Andina COA Cia. Ltda., Ecuador
Ditelme  S.A., Ecuador
Nuques y Luque Ingenieros Consultores, Ecuador
PC Structural Solutions, Panama
AMO Engineering Limited, Trinidad and Tobago
EUROPE
TECON srl, Italy
Farrugia Engineered Building Solutions, Malta
Inginerie Structurala S.R.L., Romania
Torroja Ingeniería S.L., Spain
Foster + Partners ltd, United Kingdom
AFRICA
Amenhyd Spa, Algeria
Dar Al-Handasah, Egypt
Alamine, Morocco
Contide CC, South Africa
HJ de Jager Properties, South Africa
ARAAK Group, Sudan
ASIA
National Precast, Bahrain
Amrapali Precast Infrastructure, India
Elemaster Prefab India Pvt. Ltd., India
KEF Infrastructure India Pvt. Ltd, India
Neilsoft Limited, India
RSM Engineering Consultants, India
SLABS Engineering Private Limited, India
StruEngineers, India
Teemage Precast IN, India
PT. Wijaya Karya Beton Tbk, Indonesia
Al Hamad Construction and Development, Kingdom of Bahrain
High Slant Contracting & Trad. Co., Kuwait
Index Trading Company, Kuwait
KEO International Consultants, Kuwait
Kuwait Oil Company (c/o Diyar United Company), Kuwait
Dar Al-Handasah Consultants (Shair & Partners) s.a.l., Lebanon
GTC Plus- Precast Factory, Lebanon
Marwan El Hajj, Lebanon
Mega Prefab s.a.l., Lebanon
Soprel Liban, Lebanon
JEKS Engineering Sdn Bhd, Malaysia
EA Consulting Pvt. Ltd, Pakistan
Engineers Associated Precast (Pvt) Ltd, Pakistan
Megawide Construction Company, Philippines
Global Mimar WII, Qatar
Khalid Cement Industries Complex, Qatar
QD-CPC Industries, Precast Concrete, Qatar
Redco International w.l.l., Qatar
SMEET (W.L.L.),Qatar
United Precast Concrete.Co.W.L.L., Qatar
ABV Rock (c/o Omnix International), Saudi Arabia
Alabniah, Saudi Arabia
AlBawani Ltd Co., Saudi Arabia
Alfanar, Saudi Arabia
Al-Kifah Precast Company, Saudi Arabia
Almarshad Tarraf Precast Co, Saudi Arabia
AlRashid-Abetong Company Ltd, Saudi Arabia
Bina Advanced Concrete Products, Saudi Arabia
ETE, Saudi Arabia
Gwaem Precast Factory, Saudi Arabia
Industrial Contractors Co. Ltd. “INCO”, Saudi Arabia
National Contracting Company limited, Saudi Arabia
PCE - Precast Concrete Elements Company, Saudi Arabia
Prainsa Saudi Arabia, Saudi Arabia
Precast Building Systems Co. Ltd, Saudi Arabia
Precast Technologies Co. Ltd., Saudi Arabia
Premco, Saudi Arabia
Qanbar Dywidag Precast Concrete Company Limited (QDC), Saudi Arabia
RDB EL Seif Ltd Co., Saudi Arabia
Ranco & Zamil Concrete Industries, Saudi Arabia
Saudi Asateer Precast System (SAP), Saudi Arabia
Saudi Binladin Group, Saudi Arabia
Opuro Structural Engineers Inc., South Korea
Advance Prefab, Thailand
Asia Group (1999) Co., Ltd., Thailand
Akat Prefabrike Ins. San. TIC. A.S., Turkey
Bati Prefabrik, Turkey
Istanbul Ulasým As., Turkey
LBA Design and Consultancy Ltd, Turkey
Saban Atik, Turkey
Yeni Prefabrike, Turkey
Afriprecast LTD, United Arab Emirates
Al Ain National Precast Technology, United Arab Emirates
Al Jaber Group, United Arab Emirates
Al Meraikhi Industrial Complex, United Arab Emirates
Al naboodah/Group Five JV., United Arab Emirates
Beaver Gulf Precast Concrete, United Arab Emirates
BG&E Engineers Ltd, United Arab Emirates
BSBG, United Arab Emirates
BSTm, United Arab Emirates
Concept Consulting Engineering, United Arab Emirates
Concrete Modular Construction, United Arab Emirates
Concrete Technology LLC, United Arab Emirates
Contech, United Arab Emirates
Dubai Precast LLC, United Arab Emirates
e.construct FZ LLC, United Arab Emirates
Emarat Europe, United Arab Emirates
Emirates Precast Construction LLC., United Arab Emirates
Exeed Industries LLC, United Arab Emirates
Gulf Precast Concrete Co. L.L.C, United Arab Emirates
Hard Precast Building System, United Arab Emirates
Hi Tech Concrete Products LLC, United Arab Emirates
Juma Al Majid Concrete Products Plant LLC, United Arab Emirates
LW Design Group LLC, United Arab Emirates
RAK Precast, United Arab Emirates
Robert Bird Group Pty Ltd (Dubai Branch), United Arab Emirates
Square General Contracting Co. L.L.C., United Arab Emirates
Union Precast Factory, United Arab Emirates
United Precast Concrete LLC, United Arab Emirates
WSP Parsons Brinckerhoff, United Arab Emirates
Xtramix Concrete Solutions, United Arab Emirates