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DFI Corporate Members
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Corporate Member Company Contact
A. H. BECK FOUNDATION CO. INC.August H. Beck III
AB CHANCE/HUBBELL POWER SYSTEMSGary L. Seider P.E.
ACME PILING COMPANYTom Tedesco
ADVANCED GEOSOLUTIONS INC. (AGI)Juan I. Baez P.E. Ph.D.
AECOM USA INC.Bernard H. Hertlein M. ASCE
AECON CONSTRUCTION AND MATERIALS LIMITEDMicheal Albani P. Eng.
AGL MANUFACTURING LTD.William Cheng
AGRA FOUNDATIONS LIMITEDGary Kalynchuk P.Eng.
AKER WIRTH GMBHPeter Heinrichs
ALDRIDGE DRILLING - A DIV. OF ALDRIDGE ELECTRIC INC.Jeff Knippel
ALL AMERICAN PILE SUPPLYAntonio Legero
ALMITA MANUFACTURING LTD.Larry Kaumeyer
AMERICAN COMMERCIAL INC. - a DSI companyRonald Kurta Sr.
AMERICAN DEEP FOUNDATION & SHORING WEST INC.Todd Saint
AMERICAN DEEP FOUNDATION AND SHORING INC.David R. Johnson
AMERICAN EQUIPMENT & FABRICATING CORP.John Zito
ANCHOR SHORING & CAISSONS LTD.Dawn Tattle P.Eng.
ANDERSON DRILLINGDennis M. Poland R.G. C.E.G.
APE HOLLANDLaurens De Neef
APE/J&MJohn L. White
APPLIED FOUNDATION TESTING INC.Donald T. Robertson P.E.
ARUPRichard Prust MICE P. E.
ASSOCIATED PILE & FITTINGMatthew E. Scerbak
ATLAS COPCO CMT CANADARobert Renaud
ATLAS COPCO CONSTRUCTION MINING TECHNIQUE USA LLCJoanna Canton
ATLAS TUBERandy Boswell
ATS DRILLING LPFred Shin
AVANTI INTERNATIONALMichael Harada
BALFOUR BEATTY GROUND ENGINEERINGTony P. Suckling Eur Ing Beng (Hons) MSc C.Eng FICE FGS
BAROID INDUSTRIAL DRILLING PRODUCTSToby McClain
BAUER - PILECO INC.Dan Dragone
BAUER FOUNDATION CORPChuck Puccini
BAY SHORE SYSTEMSJim Tippett
BEATY CONSTRUCTION INC.Dan Beaty
BEIJING JA YU XIN CHENG INDUSTRIAL AND TRADE CO. LTD.Mingyou Yang
BEN C. GERWICK INC.Christoffer Brodbaek P.E.
BENCOR CORPORATION OF AMERICAUgo Piccagli
BERKEL & COMPANY CONTRACTORS INC.Alan Roach
BERMINGHAM FOUNDATION SOLUTIONSPatrick Bermingham
BITTNER-SHEN CONSULTING ENGINEERS INC.Robert B. Bittner P.E.
BLACKHAWK FOUNDATION CO. INC.Ken Pippin
BOART LONGYEAR COMPANYSteve Bratton
BOART LONGYEAR INC.Wayne Burinda
BOH BROS. CONSTRUCTION CO. LLCFred P. Fuchs
BO-MAC CONTRACTORS LTDDan Brown
BRACKETT FOUNDATION SUPPORT SYSTEMS INC.John Boulware Jr.
BRASFOND FUNDAÇÕES ESPECIAIS S/AArmando Caputo
BRAYMAN CONSTRUCTION CORPORATIONDan Uranowski P.E.
BSM CONSULTING ENGINEERSBill Marczewski Jr. P.E.
BSP INTERNATIONAL FOUNDATIONS LTD.David Redhead
BUIG CENTRALE STEENBERGEN BVHarry H. Steenbergen
C&M MFG. CO. INC.Curt Moore
C.J. MAHAN CONSTRUCTION COMPANY LLCDoug McCrae
CAJUN DEEP FOUNDATIONS LLCMichael Moran
CAPPCO TUBULAR PRODUCTSThomas P. Connor
CARPENTERS TRAINING COMMITTEE FOR NORTHERN CALIFORNIA (CTCNC)Jim McNamee
CASAGRANDE S.p.A.Simon Rizzo
CASAGRANDE USA INC.Michael Steinhardt
CASE ATLANTIC COMPANYNigel Osborn C.Eng.
CASE FOUNDATION COMPANYBob Schock
CATCO - COMPRESSIVE ANCHOR TECHNOLOGY, LLCMark Hood P.E.
CEMENTATION SKANSKAJulian Crawley
CENTER ROCK INC.Brandon Fisher
CETCOJohn H. Berry P.G.
CHAMPION EQUIPMENT SALES LLCVincent Jue
CIPORT S.A.Rafael C. Miranda
CLARK FOUNDATIONS LLCIrvin J. Ragsdale P.E.
COASTAL DRILLING EAST LLC - (an SDI Company)Scott A. Kiger
COGGINS & SONS INC.John H. Hart P.E.
COMACCHIO s.r.l.Pasqualino Comacchio
COMMERCE CONSTRUCTION CORPORATIONTerry L. Zettle
CONDON-JOHNSON & ASSOCIATES INC.James O. Johnson
CONSOLIDATED PIPE AND SUPPLYBrian Rogers
CON-TECH SYSTEMS LTD.Horst Aschenbroich Dipl. Ing.
CRAIG OLDEN INC. & OLDEN PROFESSIONAL SERVICES LPCraig Olden
CRUX SUBSURFACE INC.Nick Salisbury
CZM FOUNDATION EQUIPMENTGiuliano Clo P.Eng.
D. J. SCHEFFLER INC.Dale Scheffler
DAHIL CORPORATIONKi Ho Kang
DANBRO DISTRIBUTORSFrank D'Angelo
D'ANGELO BROS. INC.Stephen J. D'Angelo
D'APPOLONIAJames L. Withiam P.E. Ph.D. D.GE
DAWSON CONSTRUCTION PLANT LTD.David Brown BEng (Hons) AMIMechE
DBM CONTRACTORS INC.Tom Armour P.E.
DE NEEF CONSTRUCTION CHEMICALS INC.Brian Iske
DEAN CONSTRUCTION CO. LTD.Marc Dean
DEEP FOUNDATIONS CONTRACTORS INC.Peter McDonald P. Eng
DELTARESFrits Van Tol
DERRICK EQUIPMENT COMPANYBen Clark
DEWITT CONSTRUCTION INC.A. Wayne Dewitt
DFIRepone Corpmem Jr. P.E.
DIGGA NORTH AMERICA INC.Robert Hartsock M.E.
DOCKBUILDERS LOCAL UNION 1456Charles J. Harkin
DOMINION PIPE AND PILINGRick Cable
DOSDOURIAN ENTERPRISES INC.Sam Dosdourian
DRILL ACADEMY LTD.Gordon Roxon
DRILLING SERVICE COMPANYMark Murphy
DYWIDAG-SYSTEMS INTERNATIONAL USA INC.Mike Kelley
E.E. CRUZ AND CO. INC.Edward Cruz P.E.
EARTHCORE SERVICES, LLCRick Ketchell
EBS ENGINEERING AND CONSTRUCTION LIMITEDDino Vito M.A.Sc. P. Eng.
EBSARY FOUNDATION CO.Richard W. Ebsary
ECI EXPLOSIVE COMPACTION INC.David A. Ward
EDGEN MURRAY CORPORATIONMichael Kelly
EL TAHHAN PILING CO. S.A.E.Hamdi Hamed El Tahhan P. Eng
ELCO DRILLING CO. INC.Michael Ludwig
ELMERSScott Tebben
EMECA/SPE USA LLCMichael R. Jahnigen
EMPIRE PILE & FOUNDATIONS INC.James J. Coppola
ENTRAC INC.Naren Doshi
ENVIROCON INC.Michael Fisher
EQUIPMENT CORPORATION OF AMERICAA. Roy Kern Jr.
ESSEX CRANE RENTAL CORP.William O'Rourke
FEDERAL HIGHWAY ADMINISTRATIONSilas Nichols P.E.
FINNPILING OYJukka Nurminen
FOUNDATION CONSTRUCTORS INC.Don Dolly
FOUNDATION PILE INC.Peter Brandl
FOUNDATION SPECIALTIES INC.Paul Gintonio
FOUNDATION SUPPORTWORKS INC.Dave Thrasher
FOUNDATION SYSTEMS OF NYFrank T. Scobbo
FOUNDATION TECHNOLOGIES INC.Frank Queen
FOUNDATION TESTING AND CONSULTING LLCWilliam Casey Jones Jones P.E. P.G.
FOUNDATIONS BUILDING CONTRACTING COMPANY LIMITEDIsmet Amin Khawaja P.E.
FUDO CONSTRUCTION INC.Masaru Sakakibara
FUENTES CONCRETE PILE CO. INC.Jorge L. Fuentes P.E.
FUGRO CONSULTANTS INC.John T. Juenger P.E.
FUGRO INGENIEURSBUREAU bvAdriaan Van Seters M.Sc.
GEI CONSULTANTS INC.Michael P. Walker P.E.
GEOCONSULT INC.Alan R. Crumley P.E.
GEODESIGN INC.Theodore Von Rosenvinge IV P.E.
GEO-INSTRUMENTSPierre Gouvin
GEOKON INC.Tony Simmonds
GEOPIER FOUNDATION COMPANY INC.Kord Wissmann Ph.D. P.E.
GEOSCIENCES TESTING & RESEARCH INC.Les Chernauskas P.E.
GEOSTRUCTURES INC.Michael J. Cowell P.E.
GEOTECH SERVICES INC.Ray Tartabini
GEOTEKNIK A.S.Tufan Durgunoglu P.E.
GERDAU AMERISTEELStan Baucum
GIKEN AMERICA CORPORATIONMichael W.T. Carter
GIVENS INTERNATIONAL DRILLING SUPPLIES INC.Susie Givens
GPE INC.David K. Crapps P.E.
GREGG DRILLING AND TESTING INC.Kelly Cabal
GREGORY POOLE EQUIPMENT CO. - CATERPILLARZach Hilton
GRIP-TITE MFG. CO. LLCDavid M. Nicholl
GRL ENGINEERS INC.Frank Rausche P.E.
GROUND ENGINEERING CONSULTANTS INC.Sean Chiang Ph.D. PE.
GROUND ENGINEERING CONTRACTORS (GEC)Parvez Naushahi
GROUND HOG FOUNDATION DRILLINGTom Baehr
GROUP CONTRACTORS LLC.Kevin Gourgues
GROUT SYSTEMS INC.Tad Kellish
GRUPO NECS S.A. de C.V.Carlos San Roman P.Eng.
GRUPO SANDSTORM GAM S. A DE C.V.Gabriel Martinez-Ramirez Sr. P.E. P.Eng.
GZA GEO ENVIRONMENTAL INC.Bradford W. Roberts P.E.
H. H. JORDAN CONST. CO. INC.Donald R. Jordan
HALEY & ALDRICH INC.Damian Siebert P.E.
HAMMER & STEEL INC.Joseph Dittmeier
HAMZA ASSOCIATESMamdouh Hamza Ph.D. P.E.
HARDMAN CONSTRUCTION INC.Todd Schrader
HAWAIIAN DREDGING CONSTRUCTION CO.Cedric Ota
HAYWARD BAKER INC.Michael Grant P.E.
HAYWARD BAKER INC.George K. Burke P.E. D.GE
HC MATCON INC.Mark Montgomery P.Eng
HELICAL ANCHORS INC.Tom Ronnkvist
HELLER AND JOHNSENLawrence F. Johnsen P.E.
HENNESSY INTERNATIONAL INC.John Hagfors
HERCULES MACHINERY CORP.Justin Reed
HJ FOUNDATION COMPANYFrank J. Fonseca
HTM CONSTRUCTION COMPANYChristopher L. Todd P.E.
HYDRAULIC POWER SYSTEMS INC.Kurt N. Winters
HYDRO-RAM INC.Mike Songer
ICE® - DRIVE-CON INC.Jill Kennedy
ICE® - INTERNATIONAL CONSTRUCTION EQUIPMENT INC.Rick Sadler
IHC FUNDEX EQUIPMENT B.V.Arjen Van Der Schaaf
IHC MARTEAUX HYDRAULIQUESDaniel Guillaume
ILLINI DRILLED FOUNDATIONS INC.Eric Reuther
INDEPENDENCE TUBE CORPORATIONDave Gast
INSTANTELRon Mask
INTERBORE PTE LTDMark Newton B.Sc
INTERCOASTAL FOUNDATIONS AND SHORINGRobert Sackaris
INTERNATIONAL CONSTRUCTION EQUIPMENT BVJos Hardeman
INTERNATIONAL DRILLING EQUIPMENTStephen Gazo
INTERPIPE INC.Steven Mathers
INTERSTATE FOUNDATION LLCBrian Langford P.E.
ISHERWOODBrian Isherwood P. Eng MICE
J. FORTUNA CONSTRUCTORA S.A.Guarien Fortuna C.E.
JACOBS ASSOCIATESThomas Hennings P.E.
JAPANPILE CORPORATIONYusuke Honma
JD FIELDS & COMPANY INC.Brian Land
JD FIELDS & COMPANY INC.Brian Land
JEFFREY MACHINE INC.Jeffrey R. Sager
JENNMAR CORPORATIONAlan A. Campoli P.E. Ph.D.
JET-DRIVE GENERAL MARINE CONTRACTING CO. INC.Richard Rivara
JINNINGS EQUIPMENTScott Jinnings
JOHN V. DINAN ASSOCIATES INC.Stephen Leventis R.A.
JUAN M. LAVIGNE Y CIA. S. A.Juan Mauricio Lavigne
JUNTTAN OYTommi Lindbom
KB INTERNATIONAL LLCK. Gifford Goodhue Jr.
KELLY TRACTOR CO.Bruce G. Budd
KIE-CON Div. of Kiewit Pacific CompanyAllen Kung
KIEWIT CONSTRUCTION GROUP INC.James A. Morrison P.E.
KISSICK CONSTRUCTION COMPANY INC.Bill Berry Jr.
KLEINFELDERZia Zafir Ph.D P.E. G.E.
KULCHIN FOUNDATION DRILLING CO.Steve Kulchin
L.B. FOSTER COMPANYDonald L. Foster
L.G. BARCUS & SONS INC.Richard W. Hoener
LALLY PIPE AND TUBE (Div of L.B. Industries)James M. Mocker
LANDMARKER GEOSPATIAL LLCThomas J. Frawley Jr. PLS
LANGAN ENGINEERING AND ENVIRONMENTAL SERVICESRudolph P. Frizzi P.E. G.E. D.GE
LAYNE GEOCONSTRUCTIONJohn Strauss P.E.
LAYNE GEOCONSTRUCTION - A DIV. OF LAYNE CHRISTENSEN CO.Pier Luigi Iovino
LEDCOR FOUNDATIONSQuentin Huillery P.Eng.
LIEBHERR NENZING CRANE CO.Wolfgang Herzog
LIPE BROTHERS CONSTRUCTIONDavid Sundberg
LMW ENGINEERING GROUP LLCJieming Wang P.E.
LOADTEST INC.John A. (Jack) Hayes P. Eng. D.I.C.
LONGFELLOW FOUNDATIONS INC.Jason Hoy
MACLEAN-DIXIE LLCWei-Chung Lin
MACRO ENTERPRISES LTD.George M. Morris P.E.
MACTEC ENGINEERING & CONSULTING INC.Kirk A. McIntosh P.E.
MAGNUM PIERING INC.William W. Bonekemper
MAGNUS PACIFIC CORPORATIONLouay Owaidat
MAIT S.p.AGreg Hefner
MALCOLM DRILLING CO. INC.Terry Tucker
MAMMOTH CONSTRUCTORSKevin G. Rodrigue
MANITOWOC CRANESTom Cioni
MARENCO LTD.Tony Cooper
MASON CONSTRUCTION LTD.David Hudson Ph.D.
MASSMAN CONSTRUCTION CO.H.J. Massman IV
McKINNEY DRILLING COMPANYNeal Howard
McNALLY INTERNATIONAL INC.Ray Hutton
MENARDSeth L. Pearlman P.E.
MENCK GmbH - An ACTEON CompanyJeremy Tygielski
MIDASOFT INC.Sang Shim P.E.
MIKROVAI OYUrjo Eskel
MKT MANUFACTURING INC.Harold Fry
MOFFATT & NICHOLGerry Houlahan P.E.
MONOTUBE PILE CORPORATIONSamuel J. Kosa P.E.
MORETRENCHThomas Tuozzolo P.E.
MORPHY MAKOFSKY INC.Donald C. Makofsky Sr. P.E.
MORRISON ENGINEERS PLLCJohn T. Morrison
MORRIS-SHEA BRIDGE COMPANY INC.Dick Shea
MOS GRONDMECHANICA BVRuud L.B. Van Der Meel
MUESER RUTLEDGE CONSULTING ENGINEERSJoel Moskowitz P.E.
MULTIURETHANES Ltd.Peter White P.Eng
MUNICON CONSULTANTSBarry Roth P.E.
NAYLOR PIPE CO.Michael Griffin
NEIDHARDT GRUNDBAU GmbHHerbert Neidhardt
NEW ENGLAND FOUNDATION CO. INC.Deirdre A. O'Neill P.E.
NICHOLSON CONSTRUCTION COMPANYThomas D. Richards Jr. P.E.
NORTH AMERICAN CONSTRUCTION GROUPJames Humphries C.E.T. G.S.C.
NORTH AMERICAN PILE DRIVING INC.Gary Hamata P. Eng.
NORTH AMERICAN STEEL SHEET PILING ASSOCIATIONJeffrey Greenwald P.E. CAE
NORTHWEST PIPE COMPANYJames Rollandi
NORWALK MARINE CONTRACTORS INC.Louis N. (Skip) Gardella
NUCOR-YAMATO STEEL CO.Michael F. Engestrom
NVAFHenk De Koning
O.C.I. DIVISION / GLOBAL DRILLING SUPPLIERS INC.James W. Rupert
OLSON ENGINEERING INC.Larry Olson P.E.
PACER CORPORATIONDaniel Berg CET
PACIFIC SHORELINE CONSTRUCTIONStewart Kriegstein
PACO VENTURES LLCBrian Weller
PARK RANGE CONSTRUCTIONRobert Spencer
PB&A INC.Pirooz Barar S.E.
PDS (Polymer Drilling Systems)Rob Newsom
PENGODawn Jamison
PENN STATE FABRICATORSHerbert J. Engler
PENNDRILL MANUFACTURINGDenise Campbell
PETERSON GEOTECHNICAL GROUPCurt Peterson P.E.
PETRIFOND FOUNDATION COMPANYPeter Paganuzzi P.E.
PIERESEARCHStan Agee
PILE DYNAMICS INC.Garland E. Likins P.E.
PILE HAMMER EQUIP. / VULCAN FOUNDATIONJonathan Tremmier
PILE PROTECTION TOPSRandall Hutchison
PILE SPLICES INC.Glenn Lockie
PILECO INC.Manfred Drier
PILLORI ASSOCIATESGregory Pillori P.E.
PINNACLE DRILLING PRODUCTS INC.Allan Zdunich
PIPE & PILING SUPPLIES LTD.Jack Dym
PMK GROUP INC.Gerald J. Perricone P.E.
PND ENGINEERS INC.Charles Kenley P.E.
POSILLICO DRILLINGJoseph D. Posillico III
POWER ENGINEERING CONTRACTORS INC.Ken Lindberg P.E.
PREMIUM TECHNICAL SERVICESMichael Melworm
R&W CONCRETE CONSTRUCTION INC.Bruce Wilson
R.W. CONKLIN STEEL SUPPLY INC.Douglas Belec
R.W. CONKLIN STEEL SUPPLY INC.Philip J. Conklin
RAITO INC.David Yang P.E. P.G. Ph.D.
RAM JACK OF SOUTH CAROLINA INC.Scott Erlewine
RAM JACK SYSTEMSDarin Willis P.E.
RAPID FOUNDATION REPAIR INC.Nathan Parkin
RAUTARUUKKI / RUUKKI CONSTRUCTIONHannu Jokiniemi
RICHARD GOETTLE INC.Larry Rayburn P.E.
ROGER BULLIVANT LIMITEDRoger Alfred Bullivant
ROLL FORM GROUPJohn Hammill P.Eng.
RST INSTRUMENTS LTD.Pierre Choquet P.Eng. Dr.-Eng.
RWH ENGINEERING INC.Jason Weck M.E.Sc
S.A. FRANKI GEOTECHNICS B N.V.Maurice Bottiau
SAMWOOGEOTECH CO. LTDDaebong Yoon
SAS STRESSTEEL INC.Felix E. Ferrer P.E.
SCHNABEL ENGINEERING LLCAllen Cadden P.E.
SCHNABEL FOUNDATION COMPANYDavid E. Weatherby
SEAFCO PUBLIC COMPANY LIMITEDNarong Thasnanipan
SESI CONSULTING ENGINEERSKenneth Quazza P.E.
SHANNON & WILSON INC.Ming-Jiun (Jim) Wu P.E. Ph.D.
SHORELINE FOUNDATION INC.James A. Royo
SHORELINE STEEL INC.Thomas Willey
SHORING ENGINEERSJason Weinstein P.E.
SKANSKA USA CIVIL NORTHEASTYat Keung Lam P.E.
SKYLINE STEEL LLC.Gerry McShane
SLURRY SYSTEMS INC.Fred C. Schmednecht P.E.
SOIL NAIL LAUNCHER INC.Colby E. Barrett E.I.T.
SOIL SOLUTIONS INC.Vincent Dejana
SOILFREEZE, INC.Dan Mageau P.E.
SOILMEC S.p.A.Marco Medaglia
SPECRETE-IP INCORPORATEDJohn A. Anderson
STAR IRON WORKSFranklin T. Stockdale
STEELE FOUNDATION LLCJ. Andrew Steele P.E.
STEVEN M. HAIN CO. INC.Steven M. Hain Sr.
STRESSTEEL PT SYSTEMSMike Pagano P.E.
STROER & GRAFFDavid L. Graff
STRUCTURAL PRESERVATION SYSTEMS LLCGraham Smith
SUBSTRUCTURE SUPPORT INC.Steve Neville
SUBSURFACE CONSTRUCTION COMPANY LLCGreg Sullivan P.E.
SUBSURFACE CONSTRUCTORS INC.Jeff Morgan
SUN PILEDRIVING EQUIPMENT L.L.C.Michael R. Jahnigen
SYNCHROPILE INC.Philip G. King P.E. D.GE F.ASCE
T.O.P. DRILLING SUPPLY CO.Michael Ferko
TARRA ENGINEERING INC.Shahram Heidari P.Eng.
TBH & ASSOCIATES LLCPeter A. Tapio
TECTONIC ENGINEERING & SURVEYING CONSULTANTS P.C.Donald A. Benvie P.E.
TEI ROCK DRILLS INC.Susan Frank
TERRACON INTERNATIONAL B.V.Sikko Doornbos
TESTCONSULT LTD.Huw Williams
THATCHER ENGINEERING CORPORATIONMichael H. Wysockey Ph.D. P.E.
THE ACADEMY OF GEO-PROFESSIONALS (AGP)Brian Sien
THE GREAT LAKES CONSTRUCTION CO.Kurt Knapp P.E.
TIMBER PILING COUNCILDean Matthews P.E.
TNO DIANA BVGiovanna Lilliu
TOLEDO CAISSON CORPORATIONJames Bennett
TRAYLOR BROS. INC.Christopher S. Traylor
TRC ENGINEERS INC.Frederick (Rick) A. Brinker P.E.
TREADWELL & ROLLO INC.Richard D. Rodgers P.E. G.E.
TREVI SpAGianluigi Trevisani
TREVIICOS CORPORATIONMario Mauro
TRICOR CONSTRUCTION INC.Kelly Cheek
TRINITY PRODUCTS INC.Vincent J. Hasen
TROW ASSOCIATES INC.Stephen S.M. Cheng P. Eng
UNDERPINNING & FOUNDATION SKANSKA INC.Edward Forte P.E.
URBAN FOUNDATION/ENGINEERING LLCMelvin Febesh P.E.
VACHRIS ENGINEERING P.C.Charles F. Vachris P.E.
VALSEN MARINE LLCShea Thorvaldsen
VAN DEN HEUVEL HANDEL & TECHNIEK BVWiechert Van Dijken
VEIT & COMPANY INC.Eric Pederson P.E.
VERMEER MACHINE TECHNIEK B.V.Robbert Van Der Zanden
VIBROFLOTATION & GEOTECHNICAL NIGERIA LTD.Segun Ikugbonmire B.Sc. MNSE MNIstruct.E
VIKING FOUNDATION PRODUCTSMark Mernik
VMS-PROFOUNDGerald Verbeek
WAGSTAFF PILING PTY. LTD.John Wagstaff
WALINCO FUNDERINGSTECHNIEKVictor De Waal PhD.
WATSON INC.David Watson
WEST SHORE CONSTRUCTORS LTD.Ed Milligan
WILLIAM F. LOFTUS ASSOCIATES FOUNDATION ENGINEERSWilliam F. Loftus P.E. L.S. P.P.
WILLIAMS FORM ENGINEERING CORP.Thomas A. Printz P.E.
WLH CONSTRUCTION COMPANYWarren Harrison P.E.
WURSTER ENGINEERING & CONSTRUCTION INC.Daryl Wurster
ZETAS ZEMIN TEKNOLOJISI A.S.Turan Durgunoglu P.E. Ph.D. FASCE