COMPANIES IN THIS INDUSTRY

AAI1 – AQUA ALLIANCE INC
AATI1 – ANALYSIS & TECHNOLOGY INC
ABGBY – ABENGOA, S.A. (Foreign)
ABTE – ABLE TELCOM HOLDING CORP
ACFN – ACORN ENERGY, INC.
ACM – AECOM
AEGN – Aegion Corp
AERS – AERO SYSTEMS ENGINEERING INC
AGX – Argan, Inc.
ALNK – AMERILINK CORP
AMFW – AMEC FOSTER WHEELER PLC (Foreign)
AMRC – Ameresco, Inc.
APWR1 – A-POWER ENERGY GENERATION SYSTEMS, LTD. (Foreign)
ARS1 – AMERICAN RESIDENTIAL SERVICES INC
ASDG – ASD GROUP INC
BRKC1 – BRACKNELL CORP
CANR – CANISCO RESOURCES INC
CBI – Chicago Bridge & Iron Company N.V.
CCGM – CHINA CGAME, INC.
CERB – CERBCO INC
CRRP – CORRPRO COMPANIES INC
DAWKQ – DAW TECHNOLOGIES INC
DBCO – DOMINION BRIDGE CORP
DHMS – DIAMOND HOME SERVICES INC
DM1 – DAMES & MOORE GROUP
DY – Dycom Industries, Inc.
EACO1 – EA ENGINEERING SCIENCE & TECHNOLOGY INC
ECNG – ENERGYCONNECT GROUP INC
EME – EMCOR Group, Inc.
EMEX – EMEX CORP
ENG – ENGlobal Corporation
ENLU – ENERLUME ENERGY MANAGEMENT CORP.
ENTP – ENTRX CORP
ESOA – ENERGY SERVICES OF AMERICA CORP
ESR1 – ENCOMPASS SERVICES CORP
FIX – Comfort Systems USA, Inc.
FLR – Fluor Corporation
FRM – FURMANITE CORP
FWLT – FOSTER WHEELER AG
GLDD – Great Lakes Dredge & Dock Corporation
GLFH – GALENFEHA, INC.
GRAM – Grana y Montero S.A.A.
GTEC – GLOBAL DEFENSE TECHNOLOGY & SYSTEMS, INC.
GV – Goldfield Corporation (The)
GVA – Granite Construction Incorporated
HRDG – HARDING LAWSON ASSOCIATES GROUP INC
HTD1 – HUNTINGDON LIFE SCIENCES GROUP PLC
IEA – INFRASTRUCTURE & ENERGY ALTERNATIVES, INC.
IESC – IES Holdings, Inc.
IFS – INFRASOURCE SERVICES INC
INEI – INEI CORP
JCI – Johnson Controls International plc
JEC – Jacobs Engineering Group Inc.
JRM – MCDERMOTT J RAY SA
KBR – KBR, Inc.
KEYW1 – ESSEX CORP
KVN – KIMMINS CORP
LAYN – Layne Christensen Company
LIME – LIME ENERGY CO.
LMB – Limbach Holdings, Inc.
MCON – EMCON
MTZ – MasTec, Inc.
MVCO – MEADOW VALLEY CORP
MXB – MARNETICS BROADBAND TECHNOLOGIES LTD (Foreign)
MYR1 – MYR GROUP INC.
MYRG – MYR Group, Inc.
NESC – NESCO INC
NRES – NICHOLS RESEARCH CORP
NVEE – NV5 Global, Inc.
ORN – Orion Group Holdings, Inc.
PIII – PECO II INC
PIKE – PIKE CORP
PRIM – Primoris Services Corporation
PWR – Quanta Services, Inc.
QTEC1 – QUESTECH INC
RCMT – RCM Technologies, Inc.
RGI1 – RANDERS KILLAM GROUP INC
ROAD – CONSTRUCTION PARTNERS, INC.
SCTY – SOLARCITY CORP
SERV1 – SERVIDYNE, INC.
STN – Stantec Inc
STRL – Sterling Construction Company Inc
STVI1 – STV GROUP INC
SWBIQ – STONE & WEBSTER INC
SWIM1 – ANTHONY & SYLVAN POOLS CORP
TKCI – KEITH COMPANIES INC
TKPPY – TECHNIP (Foreign)
TNR1 – TENERA INC
TPC – Tutor Perini Corporation
TRR – TRC COMPANIES INC
TTEK – Tetra Tech, Inc.
TUR1 – TURNER CORP
URS – URS CORP
USHS – US HOME SYSTEMS INC
UTLX – UTILX CORP
VSEC – VSE Corporation
VSR – VERSAR INC
VVVV – VIASOURCE COMMUNICATIONS INC
WLDN – Willdan Group, Inc.
WNG – WASHINGTON GROUP INTERNATIONAL INC
WNG1 – WASHINGTON GROUP INTERNATIONAL INC
XMIT – OMNIAMERICA INC