The Skyscraper Center

United States CTBUH Members

Name	City	Level	# of 150m+ buildings	Fields Of Expertise ACAD: Academic / University ARCH: Architecture BACS: Building Automation Control Systems BMNT: Building Maintenance CIV: Civil Engineering COMP: Computers / IT / Software CON: Construction / Contractor COST: Cost Consulting DEV: Developer ENGO: Engineering, Other ENVE: Environmental Engineering ENVP: Environmental Protection FAC: Façade Design / Engineering FIN: Financial Industry FIRE: Fire Engineering GEO: Geotechnic / Foundations HIST: Historical Preservation INSU: Insurance / Risk INTR: Interior Design LAND: Landscape Architecture LEGL: Legal MRKT: Marketing / Sales MATR: Materials / Products / Systems Supplier MEP: Mechanical, Electrical & Plumbing NONP: Non-Profit Org. / Assoc. / Gov't OWN: Owner (Buildings, Land) PMNG: Project Management PROP: Property Management RES: Research Institute SEC: Security Consultancy SEIS: Seismic Design STRC: Structural Engineering SURV: Surveying TRAN: Transportation / Urban Infrastructure URB: Urban Design VERC: Vertical Transportation Consultant WIND: Wind Engineering OTHR: Other FACS: Façade Systems VERS: Vertical Transportation Supplier ENGM: Engineering, Multi-discipline
Dassault Systèmes	Paris	Platinum	0	COMP
NBBJ	New York City	Gold	61	INTR • LAND • ARCH • MRKT
Pelli Clarke Pelli Architects	New Haven	Gold	52	INTR • URB • ARCH
Enclos Corp.	Los Angeles	Gold	41	PMNG • FAC • MATR
Jensen Hughes	Chicago	Gold	6	FIRE
Nishkian Menninger Consulting and Structural Engineers	San Francisco	Gold	1	STRC
WATG Urban	Seattle	Gold	2	INTR • URB • ARCH
Webcor Builders	Los Angeles	Gold	3	PMNG • CON
CB Engineers	San Francisco	Silver	4	COMP • COST • FIRE • MEP
Cerami & Associates, Inc.	New York City	Silver	25	ENGO • MATR • OTHR
Cosentini Associates	New York City	Silver	100	ENVE • COMP • FIRE • MEP
Cove Property Group	New York City	Silver	0	DEV • OWN
Gilsanz Murray Steficek	New York City	Silver	10	STRC • ENGO • SEC
Glumac	San Francisco	Silver	2	ENGO • MEP
International Code Council	Washington D.C.	Silver	0	ENGO • NONP
JAHN	Chicago	Silver	10	INTR • URB • ARCH
Kinemetrics	Pasadena, CA	Silver	43	MATR • OTHR • SEIS
Kobi Karp Architecture	Miami	Silver	8	INTR • ARCH
National Fire Protection Association	Boston	Silver	0	FIRE • NONP • RES
Ornamental Metal Institute of New York	New York City	Silver	0	MATR • NONP
PAN Partners	New York City	Silver	0	STRC • ARCH • PMNG • ENGO • LEGL
RafterySuver, LLC	Seattle	Silver	1	DEV • CON
Steel Institute of New York	New York City	Silver	0	MATR • NONP
SWA Group	Sausalito	Silver	44	LAND • URB
Tetra Tech	Pasadena, CA	Silver	0	ENGM
Edgett Williams Consulting Group, Inc.	Mill Valley	Silver	17	VERC
FullStack Modular LLC	New York City	Silver	0	CON • MATR
Henderson Engineers	Kansas City	Silver	0	ENGO
James McHugh Construction Co.	Chicago	Silver	22	CON
Jay Paul Company	San Francisco	Silver	1	DEV • OWN
JCE Structural Engineering Group	Pasadena, CA	Silver	0	STRC • SEC • SEIS
King-Le Chang & Associates	Taipei	Silver	11	STRC
Larson Engineering, Inc.	Chicago	Silver	1	STRC • ENGM
PEI Architects	New York City	Silver	1	ARCH
See Robertson Structural Engineers, LLC	New York City	Silver	0	STRC
Sentient Law, Ltd.	Chicago	Silver	0	LEGL
Spiritos Properties LLC	New York City	Silver	0	DEV
The Moinian Group	New York City	Silver	13	DEV • OWN
Tobin, PLLC	Charlotte	Silver	0	INTR • ARCH • PMNG • FAC • HIST
Victor Group	New York City	Silver	1	DEV
W.E. O'Neil Construction Co.	Chicago	Silver	0	CON
American Institute of Steel Construction	Chicago	Media Institute/Association	0	NONP
Pennsylvania State University	State College	Media Institute/Association	0	ACAD
Autodesk	San Francisco	Platinum	0	COMP
DeSimone Consulting Engineers	New York City	Platinum	45	STRC • ENGO
Dow Chemical Company	Midland	Platinum	6	MATR
HOK, Inc.	New York City	Platinum	79	INTR • STRC • URB • ARCH • FIN • PMNG • COST • ENGM • FAC • FACS • HIST • SEIS
Illinois Institute of Technology	Chicago	Platinum	0	ACAD • RES
Kohn Pedersen Fox Associates	New York City	Platinum	208	INTR • URB • ARCH • HIST • TRAN
Langan Engineering	London	Platinum	94	CIV • LAND • ENVE • GEO • SEIS
Otis Elevator Company	Hartford	Platinum	0	MATR • VERC
Skidmore, Owings & Merrill LLP	Chicago	Platinum	318	CIV • INTR • LAND • STRC • URB • ARCH • ENVE • MRKT • MEP • TRAN
Thornton Tomasetti	Chicago	Platinum	132	STRC • PMNG • ENGO • FAC • HIST • INSU • SEIS • TRAN
Turner Construction Company	New York City	Platinum	56	PMNG • CON
WSP	Chicago	Platinum	70	CIV • INTR • STRC • URB • ENVP • PMNG • COMP • ENGO • FAC • FIRE • GEO • MEP • TRAN
Adrian Smith + Gordon Gill Architecture	Chicago	Gold	40	INTR • URB • ARCH
AKF Group LLC	New York City	Gold	19	COMP • ENGO • FIRE • MEP • OTHR • PROP
Council on Tall Buildings and Urban Habitat	Chicago	Gold	0	NONP
DCI Engineers	Seattle	Gold	3	STRC • SEIS
Gensler	Chicago	Gold	99	INTR • URB • ARCH • COST • MRKT
Giarratana, LLC	Nashville	Gold	3	DEV
Goettsch Partners	Chicago	Gold	52	ARCH
Magnusson Klemencic Associates	Seattle	Gold	70	CIV • STRC • WIND • SEIS
McNamara • Salvia	Boston	Gold	20	STRC • WIND • ENGO • SEIS
Perkins & Will	Chicago	Gold	8	INTR • LAND • URB • ARCH • HIST
Severud Associates Consulting Engineers, PC	New York City	Gold	16	STRC
SL Green Realty Corp.	New York City	Gold	7	DEV • OWN • PROP
Studio Libeskind	New York City	Gold	1	INTR • URB • ARCH
The Durst Organization	New York City	Gold	10	DEV • OWN
Think Wood	Portland	Gold	0	ARCH • MRKT • NONP
3MIX	Hong Kong	Silver	0	ARCH
ADG Engineering	New York City	Silver	0	INTR • STRC • ARCH • ENGO
Alvine Engineering	Omaha	Silver	7	ENGO • FIRE • MEP
AMSYSCO	Chicago	Silver	34	ENGO • MATR
ArcelorMittal	Chicago	Silver	91	BACS • MATR
Archilier	New York City	Silver	6	ARCH
Architects Hawaii Limited - AHL	Honolulu	Silver	0	INTR • URB • ARCH
ARK Studio Inc.	Mumbai	Silver	7	INTR • URB • ARCH
BALA Engineers	Philadelphia	Silver	9	STRC • ENVE • ENGO • FIRE • MEP • SEC
Baldridge & Associates Structural Engineering	Honolulu	Silver	1	STRC • WIND • ENGO • HIST • INSU • SEIS • SURV
Barker Mohandas, LLC	New York City	Silver	34	VERC
BASF Corporation	New York City	Silver	1	MATR
Baumann Consulting	Chicago	Silver	2	ARCH • ENGM
Bedrock Detroit	Detroit	Silver	2	DEV
Bjarke Ingels Group	Copenhagen	Silver	14	STRC • URB • ARCH
bKL Architecture	Chicago	Silver	10	INTR • URB • ARCH
BKV Group	Minneapolis	Silver	0	INTR • LAND • ARCH • ENGM
Carrier Johnson + Culture	San Diego	Silver	0	ARCH
Cary Kopczynski & Company	Seattle	Silver	0	STRC • SEIS
Cast Connex	New York City	Silver	4	MATR
CBRE Group, Inc.	Dallas	Silver	67	FIN • PROP
CDC Curtain Wall Design & Consulting, Inc.	Dallas	Silver	11	STRC • WIND • COST • ENGO • FAC • LEGL
CetraRuddy	New York City	Silver	11	ARCH
Code Consultants, Inc.	Los Angeles	Silver	46	ENGO • FIRE • SEC
Construction Specialties Company	Lebanon	Silver	2	MATR
COOKFOX Architects	New York City	Silver	2	INTR • URB • ARCH
Coughlin Porter Lundeen	Seattle	Silver	1	CIV • STRC • SEIS
CPP Wind Engineering and Air Quality Consultants	Fort Collins	Silver	27	WIND • ENVE • LEGL
CS Associates, Inc.	Chicago	Silver	14	STRC • COST • HIST
CTL Group	Chicago	Silver	2	STRC • GEO • LEGL
Degenkolb Engineers	San Francisco	Silver	1	SEIS
DLR Group	Seattle	Silver	12	INTR • URB • ARCH • ENGM
Dynamic Isolation Systems, Inc.	Las Vegas	Silver	0	STRC • SEIS
Ennead Architects	New York City	Silver	1	INTR • URB • ARCH
Environmental Systems Design, Inc.	Chicago	Silver	31	BACS • COST • FIRE • MEP
Epstein	Chicago	Silver	6	CIV • STRC • ARCH
Extell Development	New York City	Silver	13	DEV • OWN • PROP
Fire Equipment Manufacturers' Association (FEMA)	Cleveland	Silver	0	FIRE • MATR
Fisher Marantz Stone	New York City	Silver	20	OTHR
FitzGerald Associates	Chicago	Silver	1	ARCH
FM Global	Boston	Silver	0	INSU
Foster + Partners	London	Silver	97	ARCH
Front Inc.	Hong Kong	Silver	25	FAC
FXCollaborative Architects	New York City	Silver	5	INTR • URB • ARCH
GEI Consultants	Boston	Silver	3	GEO
GenX Design & Technology Consulting	New York City	Silver	2	COMP
GGLO	Los Angeles	Silver	1	INTR • LAND • URB • ARCH
GREC Architects	Chicago	Silver	1	ARCH
GVK Elevator Consulting Services	San Francisco	Silver	0	PROP • VERC
Hathaway Dinwiddie Construction Company	San Francisco	Silver	2	CON
HEARST	New York City	Silver	1	OWN
Heintges Consulting Architects & Engineers	New York City	Silver	5	FAC
Heller Manus Architects	San Francisco	Silver	4	URB • ARCH • TRAN
Hill West Architects, LLP	New York City	Silver	10	ARCH
Hines	Houston	Silver	25	DEV • FIN • COST • PROP
HKA Elevator Consulting	Los Angeles	Silver	3	VERC
Humphreys & Partners Architects, L.P.	Dallas	Silver	1	CIV • INTR • LAND • URB • ARCH
Jaros, Baum & Bolles	New York City	Silver	69	BACS • PMNG • ENGM • FIRE • HIST • MEP • SEC
Korda/Nemeth Engineering	Columbus	Silver	0	ENGM
Kuraray	Wilmington	Silver	7	COMP • MATR
LeMessurier	Boston	Silver	28	STRC • WIND • FAC • FACS • HIST • SEIS
Lendlease	Chicago	Silver	29	DEV • FIN • PMNG • CON
LERA Structural Engineers	New York City	Silver	11	STRC • WIND • SEIS
Lerch Bates, Inc.	Littleton	Silver	62	FAC • MATR • VERC
LMN Architects	Seattle	Silver	2	INTR • URB • ARCH • TRAN
Longman Lindsey	New York City	Silver	4	BMNT • MEP
Magellan Development Group	Chicago	Silver	12	ARCH • DEV • OWN
Martin/Martin	Denver	Silver	3	CIV • STRC • SURV
Meyer Borgman Johnson	Minneapolis	Silver	3	STRC
MEYERS+ ENGINEERS	San Francisco	Silver	0	ARCH • ENGO • MEP
Michael Blades & Associates	Washington D.C.	Silver	0	VERC
MZA Architecture	Bellevue	Silver	1	ARCH
Nabih Youssef & Associates	Los Angeles	Silver	3	STRC • SEIS
NAIMA	Washington D.C.	Silver	0	MATR • NONP
O'Donnell & Naccarato	Philadelphia	Silver	1	STRC • FACS
OJB Landscape Architecture	Boston	Silver	16	LAND
OLYMPIQUE Façade Access Consulting	Los Angeles	Silver	6	BMNT • FACS
Optima Inc.	Chicago	Silver	1	ARCH • DEV
Osborn Engineering	Columbus	Silver	1	ENGM
Pavarini McGovern	New York City	Silver	4	CON
Peckar & Abramson, P.C.	New York City	Silver	0	CON • LEGL
Pei Cobb Freed & Partners	New York City	Silver	26	INTR • URB • ARCH
Pepper Construction	Chicago	Silver	0	CON
Pickard Chilton Architects, Inc.	New Haven	Silver	19	INTR • URB • ARCH
Portman Architects	Atlanta	Silver	3	ARCH
Prudential Center	Boston	Silver	12	DEV • OWN • PROP
Rafael Vinoly Architects	New York City	Silver	13	INTR • URB • ARCH
Reiser + Umemoto RUR Architecture	New York City	Silver	0	ARCH
Rhode Partners	Austin	Silver	1	INTR • URB • ARCH
Riggio / Boron, Ltd.	Chicago	Silver	11	BMNT • CON • FAC • OTHR
Riverside Investment & Development	Chicago	Silver	3	DEV
Robert A.M. Stern Architects	New York City	Silver	13	INTR • URB • ARCH
Safdie Architects	Somerville	Silver	10	INTR • URB • ARCH
Salas O'Brien	Atlanta	Silver	0	CIV • STRC • ARCH • BACS • FIRE • HIST • MEP
SHoP Architects	New York City	Silver	16	ARCH
SilverEdge Systems Software, Inc.	Chicago	Silver	0	COMP
SOH Wind Engineering LLC	Montpelier	Silver	0	WIND
Solomon Cordwell Buenz - SCB	Chicago	Silver	34	INTR • URB • ARCH • HIST
Sowlat Structural Engineers	Chicago	Silver	1	STRC
Stanley D. Lindsey and Associates, Ltd.	Atlanta	Silver	4	STRC • WIND • SEIS
Stantec	Abu Dhabi	Silver	10	CIV • INTR • LAND • STRC • URB • ARCH • ENVE • ENGM • FIRE • SEIS • TRAN
Steinberg Hart	Los Angeles	Silver	0	INTR • ARCH
Studio Gang Architects	Chicago	Silver	4	INTR • URB • ARCH
Swinerton	San Francisco	Silver	0	CON
Syska Hennessy Group	San Francisco	Silver	17	MEP • SEC • VERC
Telgian Engineering & Consulting	Chicago	Silver	0	FIRE
Terracon	Naperville	Silver	4	GEO • OTHR
Thatcher Foundations / CCHRB (Chicago Committee on High-Rise Buildings)	Chicago	Silver	0	NONP
The Harman Group	Philadelphia	Silver	4	STRC
The John Buck Company	Chicago	Silver	15	DEV • FIN • INSU • MRKT • PROP
The Skyscraper Museum	New York City	Silver	0	NONP
TLC Engineering Solutions	Orlando	Silver	2	STRC • MEP
Urbahn Architects	New York City	Silver	0	ARCH
Van Deusen & Associates - VDA	Atlanta	Silver	17	VERC
Vanderweil Engineers	Boston	Silver	4	MEP
Walter P Moore	Atlanta	Silver	34	CIV • STRC • WIND • FAC • HIST • SEIS

United States

North America

United States CTBUH Members