25 Where the 2020 Top 500 Design Firms Worked Region Country Company Region Country Company VIETNAM McDermott International AECOM McLaren Engineering Group Arcadis North America/Callison RTKL Moffatt & Nichol Arquitectonica Perkins and Will Black & Veatch Perkins Eastman CDM Smith Ross & Baruzzini Inc. COWI North America Sargent & Lundy EXP Gensler EGYPT Golder AECOM HOK Arcadis North America/Callison RTKL Jensen Hughes Bechtel MBH Architects Bermello Ajamil & Partners Inc. NBBJ Black & Veatch NV5 Global Inc. CDM Smith Perkins Eastman CHA Consulting Inc. Rebel Design+Group Day & Zimmermann Sargent & Lundy DLR Group Sasaki Gensler Skidmore, Owings & Merrill GreenbergFarrow Smallwood HKS Steelman Partners HOK T.Y. Lin International Jensen Hughes Thornton Tomasetti Karn Charuhas Chapman & Twohey, PC Waldemar S. Nelson and Co. Inc. KBR Inc. WATG MBH Architects WD Partners McDermott International Wood NORR Parsons F. ASIA/AUSTRALIAF. ASIA/AUSTRALIA Perkins and Will Perkins Eastman CAMBODIA Sargent & Lundy Corgan Skidmore, Owings & Merrill Gensler T.Y. Lin International HKS Thornton Tomasetti Jensen Hughes Walker Parking Consultants/Engineers, Inc KBR Inc. WATG Kohn Pedersen Fox Associates PC Perkins Eastman ETHIOPIA Smallwood AECOM Steelman Partners Arcadis North America/Callison RTKL T.Y. Lin International Black & Veatch WATG DeSimone Consulting Engineers WD Partners Jensen Hughes Rebel Design+Group G. NORTH AFRICA Smallwood Wiss, Janney, Elstner Associates ALGERIA Wood AECOM COWI North America LIBYA Day & Zimmermann AECOM Dennis Group HKS EXP Perkins Eastman Gensler Simpson Gumpertz & Heger KBR Inc. MOROCCO
26 Where the 2020 Top 500 Design Firms Worked Region Country Company Region Country Company AECOM Sargent & Lundy Arcadis North America/Callison RTKL T.Y. Lin International Barr Engineering Co Waldemar S. Nelson and Co. Inc. Day & Zimmermann Gensler BENIN HKS AECOM Jacobs Karn Charuhas Chapman & Twohey, PC BOTSWANA Merrick & Co. AECOM Perkins and Will Beyer Blinder Belle, Architects and Planners LLP Perkins Eastman Black & Veatch Smallwood Golder SmithGroup Jensen Hughes T.Y. Lin International Wood Thornton Tomasetti WATG BURKINA FASO AECOM NIGER Golder AECOM Karn Charuhas Chapman & Twohey, PC Arcadis North America/Callison RTKL KPFF Consulting Engineers Day & Zimmermann Page KPFF Consulting Engineers Thornton Tomasetti Page Thornton Tomasetti BURUNDI Walter P Moore AECOM SOMALIA CAMEROON AECOM AECOM Black & Veatch SUDAN EXP AECOM Golder Day & Zimmermann McDermott International Perkins and Will Sargent & Lundy Wood TUNISIA AECOM D.R. CONGO (ZAIRE) Jensen Hughes Golder Karn Charuhas Chapman & Twohey, PC KBR Inc. GABON KPFF Consulting Engineers AECOM Merrick & Co. Bechtel Sargent & Lundy Day & Zimmermann Wood Golder HOK H. CENTRAL AND SOUTHERN AFRICA Wood ANGOLA GAMBIA AECOM AECOM Arcadis North America/Callison RTKL Bechtel GHANA Golder AECOM KBR Inc. ECS Landrum & Brown Inc. Gensler Moffatt & Nichol Golder Perkins and Will Jensen Hughes McDermott International
27 Where the 2020 Top 500 Design Firms Worked Region Country Company Region Country Company Moffatt & Nichol Cardno Inc. Mott MacDonald Day & Zimmermann Perkins and Will Golder Sargent & Lundy Jacobs Wood Robert A.M. Stern Architects Wood GUINEA AECOM MALAWI Black & Veatch AECOM Electrical Consultants Inc. Day & Zimmermann Golder Wiss, Janney, Elstner Associates KPFF Consulting Engineers Moffatt & Nichol MOZAMBIQUE Sargent & Lundy AECOM Skidmore, Owings & Merrill Black & Veatch Waldemar S. Nelson and Co. Inc. CHA Consulting Inc. Wood Geosyntec Consultants Golder IVORY COAST HDR AECOM Jensen Hughes EXP KBR Inc. FFKR Architects KPFF Consulting Engineers Jensen Hughes Leidos McDermott International KENYA Moffatt & Nichol AECOM Mott MacDonald Black & Veatch NV5 Global Inc. CHA Consulting Inc. Perkins and Will DLR Group Sargent & Lundy Gensler Thornton Tomasetti Golder Wiss, Janney, Elstner Associates HOK Wood Jacobs Jensen Hughes NIGERIA KBR Inc. Adrian Smith + Gordon Gill Architecture Leidos AECOM McDermott International Cardno Inc. Merrick & Co. CDM Smith NV5 Global Inc. CHA Consulting Inc. Ross & Baruzzini Inc. Crawford Consulting Services Inc. Sargent & Lundy Day & Zimmermann Skidmore, Owings & Merrill EN Engineering LLC T.Y. Lin International Fugro USA Holding Inc., Vanderweil Engineers G70 Wiss, Janney, Elstner Associates Gensler Wood HKS HOK LESOTHO Jensen Hughes AECOM Karn Charuhas Chapman & Twohey, PC Black & Veatch KBR Inc. CDM Smith LANGAN LANGAN McDermott International Wood Page Perkins and Will LIBERIA Perkins Eastman AECOM Sargent & Lundy
28 Where the 2020 Top 500 Design Firms Worked Region Country Company Region Country Company Skidmore, Owings & Merrill TANZANIA Thornton Tomasetti AECOM Cardno Inc. RWANDA CDM Smith AECOM D'Amato Conversano Inc, dba DCI Engineers Golder Davis Brody Bond Jensen Hughes Golder Karn Charuhas Chapman & Twohey, PC KBR Inc. Mott MacDonald SENEGAL Perkins Eastman AECOM T.Y. Lin International Black & Veatch Wood Golder Jacobs UGANDA Jensen Hughes AECOM Perkins Eastman Beyer Blinder Belle, Architects and Planners LLP Sargent & Lundy ECS Wood Golder Gulf Interstate Engineering Co. SIERRA LEONE Jensen Hughes AECOM KPFF Consulting Engineers Golder Perkins Eastman KPFF Consulting Engineers Terracon Consultants Inc. Wiss, Janney, Elstner Associates Wiss, Janney, Elstner Associates Wood ZGF Architects LLP SOUTH AFRICA ZAMBIA AECOM AECOM Arcadis North America/Callison RTKL Golder Black & Veatch Jensen Hughes FFKR Architects Mott MacDonald Gensler Wood Geosyntec Consultants Golder ZIMBABWE HGA Golder HOK Page Jacobs Jensen Hughes I. ANTARCTIC/ARCTIC KBR Inc. Kimley-Horn ANTARCTIC/ARCTIC MBH Architects Anvil Corp. McDermott International Black & Veatch Mott MacDonald Golder Page Leidos Perkins and Will Merrick & Co. Populous NORR Sargent & Lundy Simpson Gumpertz & Heger TEECOM WATG Wiss, Janney, Elstner Associates Wood SWAZILAND AECOM Page
1 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 3 KBR Inc. Architectural Testing Intertek Energo MT Group Granherne Professional Service Industries Inc. GVA 5 Wood 16 SNC-Lavalin Inc. Asset Solutions America Atkins Energy Federal EPC Inc. Environment & Infrastructure Solutions Atkins Nuclear Secured LLC Specialist Technical Solutions Data Transfer Solutions FAITHFUL + GOULD, INC 6 HDR Isotek Systems LLC KENTZ USA INC. HDR Architecture Associates Inc. SNC-Lavalin Constructors Inc. HDR Architecture Inc. SNC-Lavalin Engineers & Constructors Inc. HDR China Co. Ltd. The Atkins North America Holdings Corp. HDR Construction Control Corp. Valerus Field Solutions Holdings LLC HDR Consulting Limited WS Atkins Inc. HDR Corp. HDR Corp. Pty. Ltd. 18 Golder HDR Engineering Inc. HDR Environmental, Operations and ELU Golder HB Golder Associados Mozambique Limitada Construction Golder Associate Colombia S.A.S. HDR GmbH Golder Associates (Asia) Pte. Ltd. HDR Inc. Golder Associates (Ghana) Ltd. HDR Middle East LLC Golder Associates (HK) Limited HDR Security Operations Inc. Golder Associates (Magyarország) Zrt. Golder Associates (NZ) Ltd. 8 Stantec Inc. Golder Associates (Philippines) Inc. Golder Associates (Singapore) PTE Ltd. STANTEC ARCHITECTURE INC Golder Associates (UK) Limited STANTEC CONSULTING MICHIGAN INC Golder Associates A/S STANTEC CONSULTING SERVICES IN Golder Associates AB Golder Associates Africa 9 Burns & McDonnell Golder Associates Africa (Pty.) Ltd. Golder Associates Argentina S.A. AZCO INC. Golder Associates AS (Norway) Ref-Chem Golder Associates Brasil Consultoria E Projetos 11 Black & Veatch Ltda. Golder Associates Consulting India Private Black & Veatch Contracting Black & Veatch Management Consulting Limited Black & Veatch Oil & Gas Golder Associates Corp. Black & Veatch Power Golder Associates Empleados S.A. de C.V. Black & Veatch Special Projects Golder Associates Engineering Consultancy Black & Veatch Telecom Black & Veatch Water Project Import Export Trading Ltd. Golder Associates Engineering Consulting Ltd. 12 Parsons Golder Associates Global Ibérica S.L.U. Golder Associates GmbH Parsons Environment & Infrastructure Golder Associates Inc. Parsons Government Services Golder Associates Ireland Limited Parsons Transportation Golder Associates Ltd. Golder Associates Michigan Inc. 13 Arcadis North America/ Callison RTKL Golder Associates NC Inc. Golder Associates OY CallisonRTKL Golder Associates Peru S.A. Golder Associates Portugal Unipessoal Lda 15 Intertek-PSI Golder Associates Pty. Ltd.
2 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary Golder Associates S.A. Ford, Bacon & Davis LLC Golder Associates S.A.R.L. S&B Engineers and Constructors Ltd. Golder Associates S.r.l. S&B Group International Ltd. Golder Construction Inc. S&B Infrastructure Private, Ltd NY Engineers Consultants PC S&B Infrastructure Ltd. PT Geotechnical and Environmental Services S&B Modular Operations Ltd. S&B Northeast Operations Ltd. Indonesia S&B Pipeline Division S&B Plant Services Ltd. 19 Bechtel 25 CDM Smith Bantrel Co. Bechtel Construction Operation Inc. CDM Constructors Inc. Bechtel Corp. CDM Federal Programs Bechtel Infrastructure and Power Corp. CDM International Bechtel Ltd. The Louis Perry Group Bechtel Nuclear, Security & Environmental Inc. Bechtel Oil, Gas, & Chemicals 26 GHD Inc. 22 Terracon Consultants Inc. GHD Consultants Ltee GHD Consulting Services Inc Argus Pacific Inc. GHD Engineering Group Inc Building Exterior Solutions Inc. GHD Limited CHJ Consultants Inc. GHD Services Inc Dunkelberger Engineering & Testing Inc. Earth Exploration Inc. 27 NV5 Global Inc. Environmental Services Inc. GeoCapitol Engineering LLC Aero-Metric Holdings Corp GeoConcepts Engineering Inc. Alta Environmental, L.P. Geotechnical & Environmental Consultants Inc. Bock & Clark Acquisition Corp. Geotechnical Consulting & Testing Inc. Bock & Clark Corp. Liesch Associates Inc. Bock & Clark Environmental LLC Mayes Testing Engineers Inc. Butsko Utility Design Inc. Neil O Anderson & Associates Inc. Celtic Energy Inc. NORCAL Geophysical Consultants Inc. CHI Engineering Services Inc. RGA Environmental Inc. CivilSource Inc. St. John-Mittelhauser & Associates Inc. Dade Moeller and Associates Inc. Stafford Consulting Engineers Inc. Energenz Consulting Limited LLC Terracon Consultants-MI Inc. Energenz Consulting Limited, LTD Terracon Consultants-NY Inc. GeoDesign Inc. Geospatial Holdings Inc. 23 Kiewit Corp. Hanna Engineering Inc. Holdrege & Kull Consulting Engineers and Cherne Contracting Corp. Kiewit Building Group Inc. Geologists Kiewit Engineering Group Inc. J.B.A. Consulting Engineers Inc. Kiewit Foundations Co. JBA Consulting Engineers (Asia) Limited Kiewit Infrastructure Co. JBA Consulting Engineers (Asia) Limited Kiewit Infrastructure South Co. Marron and Associates Inc. Kiewit Infrastructure West Co. NV5 Consultants Inc. Kiewit Offshore Services Ltd. NV5 Engineers and Consultants Inc. Kiewit Power Constructors Co. NV5 Holdings Inc. (Delaware Corp.) Kiewit Water Facility South Co. NV5 LTD (HK) Mass Electric Construction Co. NV5 Northeast Inc. TIC - The Industrial Co. NV5 West Inc. Western Summit Constructors Inc. NV5 Inc. NV5 Inc. (California Corp.) 24 S & B Engineers and Constructors Ltd., NV5 Inc. (Delaware Corp.) and affiliates NV5 Inc. (New Jersey Corp.)
3 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary NV5 LLC GPO Group, S.A. Quantum Spatial Canada IDEAM, S.A. Quantum Spatial Holdings Inc. P.T. Konsultant T.Y. Lin International Quantum Spatial India Private Limited Sam Schwartz Consulting LLC Richard D. Kimbell Co Inc. SMA Bersekutu Sdn. Bhd. Sebesta Inc. T.Y. Lin International The Sextant Group Inc. T.Y. Lin International Engineering & WHPacific Inc. Architecture, P.C. 28 Perkins and Will T.Y. Lin International Engineering Consulting Nelson\\Nygaard Consulting Associates (China) Co. Ltd. Pierre-Yves Rochon T.Y. Lin International Pte. Ltd Portland T.Y. Lin International Sdn. Bhd. T.Y. Lin International Taiwan Consulting 29 Mott MacDonald Engineers Inc. Mott MacDonald Alabama LLC T.Y. Lin International Vietnam Co. Ltd. Mott MacDonald Florida LLC The Municipal Infrastructure Group Ltd. (TMIG) Mott MacDonald Group Inc. Mott MacDonald I&E LLC 39 Arup Mott MacDonald Ltd Mott MacDonald Ny Inc. Arup Advisory Inc. Mott MacDonald Operating Services LLC Arup Canada Inc Mott MacDonald LLC Arup Latin America, SA Arup North America Ltd 31 Michael Baker International Arup Services New York Ltd Arup Texas Inc. Baker AECOM LLC Arup USA Inc. Baker and Associates General Partnership Ove Arup & Partners PC Baker LPA Architects, P.C. Baker LPA Group, LLP 40 Brown and Caldwell JMA Architects LLC Michael Baker Engineering Inc. Brown and Caldwell Constructors Michael Baker International Architects, P.C. Brown and Caldwell Consultants Canada Michael Baker International Inc. 43 Skidmore, Owings & Merrill 32 STV Group Inc. SOM (Europe) LLP STV Architects SOM Architectural Consulting (Shanghai) Co. STV Construction Inc. STV Energy Services Inc. Ltd. STV Incorporated SOM India Private Limited SOM Inc. 36 Dewberry 45 Fugro USA Holding Inc., Dewberry Architects Inc. Dewberry Design-Builders Inc. Fugro Brasilis Inc., Dewberry Engineers Inc. Fugro Enterprise Inc., Fugro Gulf Inc., 37 Sargent & Lundy Fugro Synergy Inc., Fugro USA Land Inc,. Sargent & Lundy Canada Co. Fugro USA Marine Inc., Sargent & Lundy Engineering Services Inc. Sargent & Lundy Engineers Ltd. 46 Geosyntec Consultants Sargent & Lundy, L.L.C. Enviro Group Limited Inc. 38 T.Y. Lin International Geosyntec Consultants International Inc. Geosyntec Consultants Ltd. Bon Vietnam Joint Venture Co. Limited Geosyntec Consultants, Pty. Ltd. C.Y.L Engineering Consulting Inc. MEC Water Resources Inc. 47 Hargrove Engineers + Constructors
4 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary Hargrove Controls + Automation GPI Laboratories Hargrove Life Sciences Keller & Kirkpatick, Inc 48 RS&H Inc. 65 LJA Engineering RS&H Architects-Engineers-Planners Inc. Berg Oliver RS&H Commercial Realty Inc. DCBA RS&H Michigan Inc. Horizon Environmental LJA Infrastructure 50 CHA Consulting Inc. LJA Rail Precision Aerial American Fire CHA Architecture CHA Canada 66 EN Engineering LLC CHA Tech Services CNA LLC Novara GeoSolutions Energy Initiatives Group Pondhop Automation & Controls 53 LANGAN QC Data LLC Russell Corrosion Consultants Langan CT, Inc Texas Utility Engineering Langan Engineering and Environmental Services Inc. Langan Engineering, Environmental, Surveying 69 ECS and Landscape Architecture, DPC, SA ECS Capitol Services, PLLC Langan International UK, LTD ECS Corporate Services LLC Langan International LLC ECS Florida LLC Langan MI, Inc ECS Mid-Atlantic LLC ECS Midwest LLC 54 KCI Technologies Inc. ECS Southeast, LLP ECS Southwest, LLP KCI Communications Infrastructure KCI Environmental Technologies and Construction 70 Aegion Corp. Aegion Coating Services 55 VHB Brinderson LLC Corrpro Companies Inc. VHB Engineering NC, P.C. Fibrwrap Construction Services VHB Engineering, Surveying and Landscape Insituform Technologies Schultz Industrial Services Architecture, P.C. Underground Solutions VHB Metro DC LLC 60 Perkins Eastman United Pipeline Systems BFJ Planning 71 Gulf Interstate Engineering Co. RGR Landscape Russell Design Gulf Field Services Urbanomics 74 SCS Engineers 63 Kleinfelder SCS Energy SCS Engineers Kleinfelder Australia Pty SCS Field Services Kleinfelder Canada Inc. Kleinfelder Construction Services Kleinfelder Northeast Inc. 75 Zachry Group Kleinfelder Southeast Inc. JV Industrial Kleinfelder Inc. Madison Industrial The Kleinfelder Group Inc. Zachry Engineering Corp. Zachry Nuclear Engineering 64 Greenman-Pedersen Inc. (GPI) 77 NELSON Worldwide GPI Geospatial
5 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary Brinjac Disaster and Emergency Management Services Nelco Architecture & Engineering Inc. International LLC Nelco Architecture Inc Nelco Architecture NY, PC. Flux Resources LLC. Nelson Architecture & Interiors Inc. Nelson Upper Midwest Operating Co. 104 Leo A Daly 79 Kohn Pedersen Fox Associates PC Lockwood, Andrews & Newnam Inc. KPF Abu Dhabi 106 Halff Associates Inc. KPF Architecture & Design KPF Assciates Genesis Halff CEI Inc. KPF Germany Halff TriTex Inc. KPF Hong Kong KPF International Associates 110 GZA KPF Korea KPF Singapore Civil Dynamics KPF Thailand Emery & Garrett KPF Turkey GZA Michigan Inc. Huff & Huff Inc. 87 ENERCON Melick-Tully and Associates Vieau Associates ENERCON Federal Services 115 IPS-Integrated Project Services LLC 89 SC Cos. Inc. IPS BioPharmaceutical Technology Consulting SCEPSC (Tianjin) LLC SCIPL IPS International Private Ltd. 92 Moffatt & Nichol IPS-Integrated Project Services (Germany) Moffatt & Nichol Information Systems GmbH Moffatt & Nichol, Brazil IPS-Integrated Project Services (Ireland) Limited Moffatt & Nichol, Chile IPS-Integrated Project Services GmbH Moffatt & Nichol, Colombia IPS-Integrated Project Services Limited Moffatt & Nichol, London IPS-Integrated Project Services Pte. Ltd. Moffatt & Nichol, Panama IPS-Integrated Project Services, ULC IPS-Mehtalia Pvt. Ltd. 95 Volkert Inc. IPS-Serviços de Projetos Integrados Ltda. Volkert Global 116 GAI Consultants Inc. 96 Pennoni Bellomo-Herbert & Co. Inc. GAI Consultants - NC Inc. IIS GAI Consultants of Michigan, PLC Pennoni Engineering and Surveying GAI Engineering & Surveying Consultants of 97 Foth Cos. New York, P.C. Lotspeich | Associates Inc. Foth Canada Corp. Real Estate Research Consultants Inc. Foth Infrastructure & Environment LLC Systems Planning Corp. Foth Mexico Corp., S. DE R.I.DE C.V. Foth Production Solutions LLC 121 Atwell LLC 100 Barr Engineering Co RVi Planning and Landscape Architecture Strategic Construction Solutions Inc. Barr Engineering & Environmental Science Canada LTD 124 Haley & Aldrich Inc. 102 David Evans Enterprises Inc. H&A Of New York LLP Haley & Aldrich Construction Services David Evans and Associates, Inc Haley & Aldrich Of Michigan, Inc 125 Consor Engineers LLC
6 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary AIA Engineers Consultants Henderson Engineers Inc. Consor Engineering & Land Surveying - NY, PC 143 Merrick & Co. 128 Morrison Hershfield Merrick Canada, ULC Morrision Hershfield International Inc. Morrison Hershfield Corp. 147 Salas O'Brien Morrison Hershfield Geomatics Morrison Hershfield Limited KDW Salas O'Brien Morrison Hershfield Managers Inc. MEP Associates LLC OMB Electrical Engineers 129 DLZ Corp. RMS Engineers Salas O'Brien Engineers Inc. DLZ American Drilling Inc. Salas O'Brien Florida DLZ Illinois Inc. Salas O'Brien South LLC DLZ Indiana LLC Salas O'Brien LLC DLZ Industrial Surveying Inc. Technical Roofing Services DLZ Industrial LLC T-Squared Professional Engineers DLZ Kentucky, Inc Varo Engineers DLZ Michigan Inc. WMA Consulting Engineers DLZ National Inc. DLZ Ohio Inc. 150 NORR DLZ Pennsylvania Inc. DLZ Wisconsin LLC NORR Architects & Engineers Limited NORR Architects Engineers Planners 130 SSOE Group NORR Architects Planners Inc. NORR Associates Inc. SSOE China Co Ltd NORR Consultants Limited SSOE Consultancy India Private Ltd NORR Design Inc. SSOE Group Mexico S de RL de DV NORR Group Consultants International SSOE Inc. NORR Inc. SSOE Systems Inc NORR Limited NORR LLC. 131 Weston & Sampson 156 Syska Hennessy Group Weston & Sampson Architects Inc. Weston & Sampson Engineers Inc. Syska Hennessy Group China, Inc Weston & Sampson Land Surveyors Inc. Syska Hennessy Group, Inc Weston & Sampson PE, LS, LA, PC Weston & Sampson Services Inc. 161 Barge Design Solutions WSE of North Carolina, PC Gould Turner Group 132 EYP Architecture & Engineering ResourceTek EYP Architecture & Engineering of CT Inc. 169 American Structurepoint EYP Architecture & Engineering of NJ Inc. EYP Architecture & Engineering, P.C. American Structurepoint International LLC EYP Inc. EYP/AE Incorporated 170 The Burke Group Ltd. EYP/BJAC P.A. EYP/Design Services Inc. Burke LLC EYP/Program Management Inc. Camplin Environmental Services WHR Architects Inc. Christopher B. Burke Engineering LLC WHR Architects, P.C. Christopher B. Burke Engineering Ltd. WHR Architecture, P.C. Emerald Site Services LLC WHR Design, PC GE Consulting KLOA 137 Henderson Engineers Inc. LAWR Mackie Consultants LLC Henderson Building Solutions LLC SPACECO Inc. Thomson Surveying Ltd.
7 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 171 Raba Kistner Inc. 212 Wade Trim PC Sports LLC Wade Trim Associates Inc. Project Control of Texas Inc. Wade Trim NY, PC Raba Ingenieros Wade Trim Inc. (Florida) Raba Kistner Consultants Inc. Wade Trim Inc. (Michigan) Raba Kistner Environmental Inc. Wade Trim Inc. (Ohio) Raba Kistner Infrastructure Inc. Timber Creek Environmental LLC 215 Anvil Corp. 173 LaBella Associates, D.P.C. Doyon Anvil, Limited Redi Anvil LLC LaBella Associates, D.P.C. LaBella Engineering, SLU 217 CP&Y Inc. LaBella Environmental LLC Meeting the Challenge Inc. 174 Electrical Consultants Inc. 220 A. Morton Thomas and Associates Inc. Electrical Consultants Inc. EPC Services Co. AMT LLC 179 Clark Nexsen 221 Humphreys & Partners Architects Clark Nexsen Construction Services Atticus Real Estate Figoten, S.A. 182 BR+A Consulting Engineers HP Civil Engineering HPA Design Group BR+A HPLA Studio Humphreys & Partners Architects (Vietnam) Co. 184 Haskell Limited Benham, A Haskell Co. Humphreys & Partners Architects/Canada FreemanWhite, A Haskell Co. H.R. Gray, A Haskell Co. 222 Schnabel Engineering Seiberling, A Haskell Co. The Haskell de Mexico Lachel & Associates Inc. Schnabel Engineering of Michigan Inc. 193 Greeley and Hansen Schnabel Engineering of New York Schnabel Engineering South, P.C. Greeley and Hansen Architects LLC Schnabel Engineering West Inc. Greeley and Hansen Colombia S.A.S Schnabel Engineering LLC Greeley and Hansen Ecuador CIA LTDA Schnabel Services Inc. Greeley and Hansen Michigan LLC 226 H2M architects + engineers 195 Burrow Global LLC H2M Architects & Engineers Burrow Global Services H2M architects + engineers H2M Associates Inc. 201 BCC Engineering Inc. 227 Dennis Group Lakes Engineering Inc. New Millennium Engineering Inc. Dennis Brasil Engenharia Ltda Dennis Group Canada Inc. 203 Huckabee Dennis Group International, Unipessoal Lda Tech4Food Engineering & Innovation Lda Huckabee The Dennis Engineering Group LLC The Dennis Group Inc. 211 ME Engineers 230 Neel-Schaffer Inc. M-E Engineers Limited Maptech Inc. ME/Vogel Taylor engineers SoilTech Consultants Inc. True North Emergency Management
8 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 231 BRPH Architects Engineers Inc. 263 Ardurra Group Inc. BRPH Architects Engineers Inc. Ardurra Group New York BRPH Construction Services Ardurra Group North Carolina PCA Austrailia 239 Day & Zimmermann 264 Rettew Associates Inc. ATLANTIC UNION RESOURCES, INC - DBA DZNPS RETTEW Engineering & Surveying DAY & ZIMMERMANN INTERNATIONAL, INC 266 Otak Inc. DAY & ZIMMERMANN MANAGEMENT DAY CPM Services LLC SERVICES, INC k2 Consultancy Group DAY & ZIMMERMANN NPS, INC Otak International Inc. MASON & HANGER MASON & HANGER 269 Arquitectonica MASON & hANGER THE ATLANTIC GROUP, INC - DBA DZ ArqGEO H3 ATLANTIC 272 Twining Inc. 246 PRIME AE Group Inc. DRP Braun & Steidl Architects Inc. RADCO GCAG/SCG JV LLC Sys-Tek Gulf Coast Architectural Group Inc. Twinign Consulting Inc. KB Engineering Inc. Twining Inc. KB Group of NY Inc. PRIME AE Group/Gannett Fleming JV 278 J-U-B Engineers Inc. PRIME Construction Management & Survey Inc. Gateway Mapping Inc. 248 tvsdesign The Langdon Group tvsdesign 251 RCM Technologies Inc. 285 TKDA PSR Engineering Solutions d.o.o. Beograd Cedar Street Architecture (Voždovac) 287 RMA Group RCM Technologies (USA) Inc. RCM Technologies Canada Corp. RMA GeoScience Site Scan 257 Fehr & Peers 290 Geo-Logic Associates Inc. Fehr & Peers DC Clear Creek Associates 259 EnSafe Inc. Daniel B. Stephens & Associates Inc. Geo-Logic Associates Inc. GR2 LLC Geo-Logic Peru Kunkel Engineering 260 T&M Associates RMC East Coast Drilling 306 The S/L/A/M Collaborative 261 Ross & Baruzzini Inc. Construction Services of Somerset S/L/A/M Architects, Landscape Architects & Ross & Baruzzini | CAGE Ross & Baruzzini | COMgroup Engineers, P.C. Ross & Baruzzini | DVS S/L/A/M Construction Services Ross & Baruzzini | EDI Ross & Baruzzini | Genesis Planning 307 Fuss & O'Neill Inc. Ross & Baruzzini | MACRO Ross & Baruzzini | Mitchell Planning Fuss & O'Neill Manufacturing Solutions LLC
9 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary 313 Hart Howerton KBJ-L&B Architects LLC L&B Architects LLC Hart Howerton Partners, Ltd L&B China LLC Hart Howerton, Ltd L&B Colombia S.A.S L&B Transportation Technology Consultancy 314 Bartlett & West Inc (Shanghai) Co., Ltd BW Field Services LLC L&B Worldwide Australia PTY LTD BW/Corman Technologies LLC Landrum & Brown UK Limited SCS LLC Landrum & Brown Worldwide Serivces LLC West Dakota Water LLC Trillion Aviation LLC 321 ISG 350 Binkley & Barfield Inc. ISG Field Services LLC Baseline Corp. ISGrowth Machine Inc. Landev Engineers Inc. Shine & Associates 325 ms consultants Inc. 354 ARM Group Enterprises Inc. ms consultants Inc. ARM AEC LLC ARM CAMCO LLC 326 Baxter & Woodman Inc. ARM EnerTech Associates LLC Geo-Science Engineering & Testing LLC Concentric Integration 328 McLaren Engineering Group 361 WD Partners LandMetrics Engineering adn Land Surveying, WD Partners India Private Limited PC 375 RDG Planning & Design M. G. McLaren Engineering and Land Surveying, PC RDG IA Inc RDG Schutte Wilscam Birge, Inc McLaren Technical Services, Inc 334 T2 Utility Engineers 379 Leighton Group, inc T2 Engineering Services, P.C. Leighton Associates, Inc T2 UES (MI), Inc Leighton Consulting, Inc 339 AlfaTech Consulting Engineers Inc. 380 LHB Inc. AT-PD Inc. LHB LLC 342 BHDP Architecture 384 Heapy AVUITY Heapy Engineering Indiana LLC Heapy Solutions 343 Martin/Martin Inc. 385 Advantage Engineers Martin/Martin Inc. Wyoming Advantage Engineers 346 Manhard Consulting, Ltd Synergy development Service Manhard Dallas LLC 386 GBA (George Butler Associates) Manhard.TX LLC Alynix LLC 347 RATIO GBA Builders LLC gba Systems Integrators LLC RATIO | HPA Infrastructure Solutions LLC RATIO | smdp LLC Virocon Inc. 349 Landrum & Brown Inc. 389 Steelman Partners KBJ Architects LLC DSAA
10 2020 Top 500 Design Firms – Subsidiaries by Rank Rank Company Subsidiary Rank Company Subsidiary Marqi Branding Blaine Construction Corp. Shop12 Edwards Electric Service LLC Steelman Architecture Asia JESCO Inc. Steelman Partners Cambodia Merit Electrical Inc. Steelman Partners Europe Superior Asphalt Inc. Steelman Partners Vietnam W.G. Yates & Sons Construction Co. Yates Constructors LLC 393 England-Thims & Miller Inc. Yates Engineers LLC Yates Services LLC ETM Surveying & Mapping Inc. 450 Merriman Anderson/Architects Inc. 396 CTL Engineering Inc. Merriman Pitt Anderson Industrial Communication and Sound Merriman Schmitt Anderson 412 The LiRo Group 451 CTL|Thompson Inc. DiGiorgio Associates, P.E. CTL|Thompson Materials Engineers Inc. James LaSala and Associates, P.C. LiRo Architects + Planners, P.C. 452 Costello Inc. LiRo Engineers Inc. LiRo GIS Inc. Costello Inc. LiRo Program and Construction Management, 453 Grimm + Parker Architects PE P.C. Monitor Builders Inc. Grimm + Parker Architects Grimm + Parker Architects 415 RDC-S111 464 Souder, Miller & Associates RDC Studio One Eleven Souder, Miller & Associates Operations Vigil Enterprises 425 GRW Engineers Inc. 472 Highland Associates LTD Chapman Technical Group GRW Aerial Surveys Highland Associates LTD 426 Wendel 475 McMahon Associates Inc. Wendel Architectural Resources Inc. McMAHON Inc. Wendel Construction Inc. RW Management Wendel Consulting Services LLC Wendel Energy Services LLC 479 Jones Edmunds & Associates Inc. Wendel Engineering Resources Inc. Wendel Engineering, PC JEACES Wendel WD Architecture, Engineering, 480 GP Strategies Corp. Surveying & Landscape Architecture, PC Lorien Engineering 428 WithersRavenel Inc 487 E.L. Robinson Engineering Co. WithersRavenel EL Robinson Engineering Of Ohio Co. 430 V3 Cos. V3 Companies of Canada Ltd. V3 Companies Ltd. 432 Dekker/Perich/Sabatini Ltd. da2b66 443 The Yates Cos. Inc. American Industrial Construction LLC
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