| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| ACE GROUP | 525 W MONORE ST #700 | CHICAGO | IL | 60661 | (312) 775-7952 | (312) 775-7892 |
| ADC CONSTRUCTORS INC | 188 W BAY CEDAR CIR | JUPITER | FL | 33458 | (561) 972-4875 | (561) 972-4875 |
| AFFILIATED STEAM EQUIPMENT CO | 12424 S LOMBARD LN | ALSIP | IL | 60803 | (708) 371-0600 | (708) 371-0670 |
| AFFINITY STEEL | PO BOX 2307 | OREGON CITY | OR | 97045 | (971) 277-0566 | (503) 980-4660 |
| AHERN, J F CO | 855 MORRIS ST | FON DU LAC | WI | 54935 | (920) 921-9020 | (920) 921-8632 |
| ALBERICI CONSTRUCTORS | 8800 PAGE AVE | ST LOUIS | MO | 63114 | (314) 733-2465 | (314) 733-2005 |
| AMERICAN CAST IRON PIPE CO | 860 W BLACKHAWK ST, #2805 | CHICAGO | IL | 60642 | (804) 357-6756 | (205) 488-7539 |
| APGN INC | 160 BANKER RD | PLATTSBURGH | NY | 12901 | (450) 939-0799 | (450) 939-2115 |
| AQUARIUS TECHNOLOGIES | 1103 MINERAL SPRINGS DR | PORT WASHINGTON | WI | 53074 | (262) 268-1500 | (262) 268-1515 |
| ATLAS COPCO | 7901 HANSEN RD | HOUSTON | TX | 77061 | (713) 948-5924 | (713) 947-6409 |
| AUTOMATIC SYSTEMS CO | 2409 ARBOR LN | CRYSTAL LAKE | IL | 60012 | (815) 298-5366 | (651) 631-0027 |
| AUTOMATION LIBERATION GROUP LLC | 14011 S KOSTNER AVE | CRESTWOOD | IL | 60445 | (708) 388-4733 | (708) 240-5882 |
| BENCHMARK CONSTRUCTION CO INC | 2260 SOUTHWIND BLVD | BARTLETT | IL | 60103 | (630) 497-1700 | (630) 497-1737 |
| BID OCEAN | PO BOX 40445 | GRAND JUNCTION | CO | 81504 | (970) 237-4411 | (970) 256-9704 |
| BIDNET | 15 BRITISH AMERICAN BLVD | LATHAM | NY | 12110 | (518) 438-009... | (518) 689-7038 |
| BIDTOOL | 14205 N MOPAC EXPWY #550 | AUSTIN | TX | 78728 | (800) 872-7878 | (800) 487-7878 |
| BORG GENERAL SALES LLC | 1386 JARVIS AVE | ELK GROVE VILLAGE | IL | 60007 | (847) 640-4635 | (847) 640-7934 |
| CASE FOUNDATION CO | 1325 W LAKE ST, PO BOX 40 | ROSELLE | IL | 60172 | (630) 529-2911 | (630) 529-4802 |
| CCI FLOORING INC | 941 SAK DR | CREST HILL | IL | 60403 | (815) 774-3820 | (888) 765-6428 |
| CHICAGO UNITED INDUSTRIES LTD | 505 N LAKE SHORE DR, STE 205 | CHICAGO | IL | 60611 | (312) 786-1471 | (999) 999-9999 |
| CLARK CONSTRUCTION | 7500 OLD GEORGETOWN RD | BETHESDA | MD | 20814 | (301) 272-8110 | (301) 272-6987 |
| CMC PAVING SOLUTIONS | 11950 S HARLEM AVE | PALOS HEIGHTS | IL | 60463 | (708) 361-2310 | (708) 361-2549 |
| CODY BUILDERS SUPPLY | 12002 N LAMAR | AUSTIN | TX | 78753 | (512) 339-9834 | (512) 339-0165 |
| COI | 1237 W 47 ST | CHICAGO | IL | 60609 | (773) 321-9635 | (773) 506-2236 |
| CONCORD EXCAVATING ENTERPRISES INC | 307 CANTON FARM RD | LOCKPORT | IL | 60441 | (630) 243-6849 | (630) 243-6850 |
| CONCRETE STRUCTURES OF THE MIDWEST | 1845 WESTERN DR | WEST CHICAGO | IL | 60185 | (630) 293-5775 | (630) 293-5814 |
| CROUCH-SERANKO | 701 THORNDALE | BENSENVILLE | IL | 60106 | (630) 595-2536 | (630) 595-3513 |
| DAHME MECHANICAL INDUSTRIES INC | 610 S ARTHUR AVE | ARLINGTON HTS | IL | 60005 | (847) 253-0341 | (847) 253-9501 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| DELTEK INC | 2291 WOOD OAK DR | HERNDON | VA | 20171 | (571) 306-5946 | (571) 306-5946 |
| DIVANE BROS ELECTRIC CO | 2424 N 25TH AVE | FRANKLIN PARK | IL | 60131 | (847) 455-7143 | (847) 451-5352 |
| DRYDON EQUIPMENT INC | 2445 WESTFIELD DR, STE 100 | ELGIN | IL | 60124-7840 | (224) 629-4060 | (224) 629-4061 |
| EATON CORP | 210 WINDY PT DR | GLENDALE HTS | IL | 60139 | (630) 260-6300 | (630) 260-6810 |
| EDWARDS ENGINEERING | 1000 TOUHY AVE | ELK GROVE | IL | 60007-4822 | (847) 364-8100 | (847) 364-0188 |
| ELECTRICAL SYSTEMS INC | 17335 S ASHLAND AVE | EAST HAZEL CREST | IL | 60429 | (708) 647-1300 | (708) 647-6744 |
| EMERGENT SAFETY SUPPLY | 1055 KINGSLAND DR | BATAVIA | IL | 60510 | (630) 406-966... | (630) 406-6195 |
| EMERSON PROCESS MGMT | 1121 WILEY BRIDGE RD | WOODSTOCK | GA | 30188 | (770) 592-4463 | |
| ENDURO COMPOSITES | 16602 CENTRAL GREEN BLVD | HOUSTON | TX | 77032 | (713) 358-4000 | (999) 999-9999 |
| ENVIRODYNE SYSTEMS INC | 75 ZIMMERMAN DR | CAMP HILL | PA | 17011 | (717) 763-0500 | (717) 763-9308 |
| EVOQUA WATER TECHNOLOGIES | 2607 N GRANDVIEW BLVD | WAUKESHA | WI | 53088 | (262) 521-8498 | (262) 521-8249 |
| FH PASCHEN, SN NIELSEN & | 5515 N EAST RIVER RD | CHICAGO | IL | 60656-1113 | (773) 444-3474 | (773) 693-0064 |
| FIBERGLASS FABRICATORS INC | 964 DOUGLAS PIKE | SMITHFIELD | RI | 02917 | (401) 231-3552 | (401) 232-2260 |
| FILNOR INC | 227 N FREEDOM AVE | ALLIANCE | OH | 44601 | (330) 821-7667 | (330) 829-3175 |
| FLOWSERVE PUMP DIV | 5310 TANEYTOWN PIKE | TANEYTOWN | MD | 21787 | (410) 756-3519 | |
| FLOWTITE PIPE | 18585 SAMUELS RD | ZACHARY | LA | 70791 | (260) 579-2066 | (225) 658-0947 |
| GASVODA & ASSOCIATES INC | 1530 HUNTINGTON DR | CALUMET CITY | IL | 60409 | (708) 891-4400 | (312) 894-1138 |
| GEORGE SOLLITT CONSTRUCTION | 185 HANSEN COURT | WOOD DALE | IL | 60191 | (630) 860-7333 | (630) 860-7347 |
| GIBSON ELECTRIC CO INC | 3100 WOODCREEK DR | DOWNERS GROVE | IL | 60515-5427 | (630) 288-3861 | (630) 743-2108 |
| GLASS DESIGNERS INC | 10123 S TORRENCE AVE | CHICAGO | IL | 60617 | (773) 978-2747 | (773) 978-2758 |
| GRAPHIC HOUSE INC | 9204 PACKER DRIVE | WAUSAU | WI | 54401 | (715) 848-0402 | (715) 848-9102 |
| GSG CONSULTANTS INC | 623 COOPER CT | SCHAUMBURG | IL | 60173 | (312) 733-6262 | (312) 733-5612 |
| GTI | 5150 RACE CT | DENVER | CO | 80216 | (506) 452-7333 | (506) 452-6625 |
| HANSON PRESSURE PIPE | 27 JAMESTOWN DR | MICHIGAN CITY | IN | 46360 | (219) 873-9509 | (219) 873-9507 |
| HAYES MECHANICAL LLC | 5959 S HARLEM AVE | CHICAGO | IL | 60638 | (773) 784-0000 | (773) 784-0010 |
| HAYWARD BAKER INC | 1350 W LAKE ST | ROSELLE | IL | 60172 | (630) 339-4300 | |
| HAYWARD GORDON | 5 BRIGDEN GATE | HALTON HILLS | ON | L7G 0A3 | (905) 693-8595 | (905) 693-1452 |
| HD SUPPLY WATERWORKS INC | 220 S WESTGATE DR | CAROL STREAM | IL | 60188 | (630) 665-1800 | (815) 469-1218 |
| HERLIHY MID-CONTINENT CO | 1306 MARQUETTE DR | ROMEOVILLE | IL | 60446 | (630) 378-1000 | (630) 378-1002 |
| HOLOPHANE | 208 CAMBRIDGE CT | OSWEGO | IL | 60543 | (312) 257-4320 | (855) 231-9462 |
| HUDSON BOILER & TANK CO | 3101 SO STATE ST | LOCKPORT | IL | 60441 | (312) 666-4780 | (312) 666-5145 |
| HYDRO GATE LLC | 7010 BROADWAY, STE 400 | DENVER | CO | 80221 | (303) 288-7873 | (303) 287-8531 |
| IHC CONSTRUCTION CO LLC | 385 AIRPORT RD, STE 100 | ELGIN | IL | 60123 | (847) 742-1516 | (847) 742-6610 |
| II - 2 - IN ONE CONTRACTORS INC | 4344 W 45TH ST | CHICAGO | IL | 60632 | (773) 847-2100 | (773) 847-4501 |
| INDEPENDENT MECHANICAL | 2671 UNITED LN | ELK GROVE VILLAGE | IL | 60007 | (773) 243-0575 | (773) 496-8136 |
| INDUSTRIAL & ENVIRONMENTAL | 7550 EAST MELTON RD | GARY | IN | 46403 | (219) 939-5000 | (219) 939-6950 |
| INTERNATIONAL PAINT | 2902 N RACINE, APT 2 | CHICAGO | IL | 60657 | (312) 835-5778 | (773) 439-7672 |
| ISQFT | 3825 EDWARDS RD, #801 | CINCINNATI | OH | 45209 | (800) 364-2059 | (866) 570-8187 |
| ITT - SANITAIRE CORP | 9333 N 49TH ST | BROWN DEER | WI | 53223 | (414) 365-2200 | (414) 365-2210 |
| J M PROCESS SYSTEMS INC | 6 SHADOW CREEK CIRCLE | PALOS HEIGHTS | IL | 60463 | (708) 429-3040 | |
| JDV EQUIPMENT | ONE PRINCETON AVE | DOVER | NJ | 07801 | (973) 580-3825 | (973) 366-3193 |
| JONES-BELL LLC, D/B/A ECS | 2201 TAYLORS VALLEY ROAD | BELTON | TX | 76513 | (254) 933-2270 | (254) 933-2212 |
| JUDLAU OHL GROUP | 1011 WARRENVILLE RD #195 | LISLE | IL | 60532 | (630) 488-9314 | (331) 777-5771 |
| KELSO-BURNETT CO | 5200 NEWPORT DR | ROLLING MEADOWS | IL | 60008 | (847) 259-0720 | (847) 483-3887 |
| KENNY CONSTRUCTION COMPANY | 2215 SANDERS RD, STE 400 | NORTHBROOK | IL | 60062 | (847) 309-1191 | (847) 272-5930 |
| KEY WEST METAL INDUSTRIES INC | 13831 S KOSTNER AVE | CRESTWOOD | IL | 60445 | (708) 371-1470 | (708) 371-1570 |
| KIEWIT INFRASTRUCTURE CO | TWO PIERCE PL, STE 1600 | ITASCA | IL | 60143 | (773) 458-1250 | (999) 999-9999 |
| KROESCHELL INC | 3222 N KENNICOTT AVE | ARLINGTON HTS | IL | 60004 | (312) 649-7980 | (312) 649-3640 |
| LAI LTD | 5400 NEWPORT DR, STE 10 | ROLLING MEADOWS | IL | 60008 | (847) 392-0990 | (847) 392-1095 |
| LANE CONSTRUCTION CORP | 611 W JEFFERSON ST, STE 201 | SHOREWOOD | IL | 60404 | (815) 590-3630 | (815) 651-2145 |
| MARSHALL-BOND PUMPS INC | 118 KIRKLAND CIRCLE 'G' | OSWEGO | IL | 60543 | (630) 978-7867 | (630) 978-7872 |
| MCHUGH CONSTRUCTION CO, JAMES | 1737 S MICHIGAN AVE | CHICAGO | IL | 60616 | (312) 986-8000 | |
| MCNISH CORPORATION | 840 N RUSSELL AVE | AURORA | IL | 60506 | (630) 892-792... | (630) 892-7951 |
| MEADE ELECTRIC CO | 625 WILLOWBROOK CENTER PKWY | WILLOWBROOK | IL | 60527-7969 | (708) 588-2500 | (708) 588-2501 |
| MECCON INDUSTRIES INC | 2703 BERNICE RD | LANSING | IL | 60438 | (708) 474-8300 | (708) 474-8310 |
| MECHANICAL INC | 225 FENCL LN | HILLSIDE | IL | 60162 | (708) 449-8080 | (708) 449-8081 |
| MECHANICAL INC | 2279 YELLOW CREEK RD | FREEPORT | IL | 61032 | (815) 235-1955 | (815) 235-1940 |
| MECHANICAL INC | 243 W STATE RD 176 | ISLAND LAKE | IL | 60042 | (800) 355-7061 | (800) 355-7048 |
| MEMECO SALES AND SERVICE | 6677 N LINCOLN AVE, STE 230 | LINCOLNWOOD | IL | 60712 | (773) 858-5467 | (847) 329-9397 |
| MG ELECTRIC SERV INC | 1450 E ALGONQUIN RD | ARLINGTON HTS | IL | 60005 | (847) 439-7500 | (847) 439-7507 |
| MORRISON CONSTRUCTION COMPANY INC | 1834 SUMMER ST | HAMMOND | IN | 46320 | (219) 932-5036 | (219) 933-7302 |
| MORSE GROUP | 1390 GATEWAY BLVD | BELOIT | WI | 53511-9799 | (608) 856-7311 | (608) 856-7312 |
| MURPHY & DICKEY | 930 N YORK RD, STE 205 | HINSDALE | IL | 60521 | (630) 655-1080 | (630) 655-1085 |
| MYERS, J M | PO BOX 240038 | CHARLOTTE | NC | 28224 | (704) 554-8397 | (704) 554-9113 |
| NEFCO INC | 8895 N MILITARY TRAIL | PALM BEACH GARDENS | FL | 33410 | (561) 775-9303 | (561) 775-6043 |
| NORTHWEST PIPE | 183 NORTHWEST DR | WASHINGTON | WV | 26181 | (304) 863-3316 | (304) 863-6984 |
| ODLE PAINTING INC | 1801 W 26TH ST | MUNCIE | IN | 47302 | (765) 770-0348 | (765) 770-0348 |
| OMEGA DEMOLITION CORP | 31W566 SPAULDING RD | ELGIN | IL | 60120 | (630) 837-3000 | (630) 837-2300 |
| ORTIZ CONTRACTING GROUP | 9308 GULFSTREAM RD | FRANKFORT | IL | 60423 | (708) 595-8250 | (779) 456-7980 |
| OVIVO USA LLC | 4246 RIVERBOAT RD, STE 300 | SALT LAKE CITY | UT | 84123 | (801) 931-3055 | (801) 931-3080 |
| PANNER SALES CO | 9502 GULFSTREAM RD | FRANKFORT | IL | 60423 | (815) 469-8333 | (216) 398-8518 |
| PAUL BORG CONSTRUCTION CO | 2007 S MARSHALL BLVD | CHICAGO | IL | 60623 | (773) 523-1111 | (773) 376-1501 |
| PAYNECREST ELECTRIC | 10411 BAUEL BLVD | ST LOUIS | MO | 63132 | (314) 996-0400 | (314) 996-0500 |
| PETERSON AND MATZ, INC. | 757 S 8TH ST | WEST DUNDEE | IL | 60118 | (847) 844-4405 | (847) 844-4409 |
| PITTSBURGH CORNING | 33772 N SHAWNEE | GRAYSLAKE | IL | 60030 | (847) 840-6559 | (847) 573-1510 |
| PPG INDUSTRIES | 5151 W 122 ST | ALSIP | IL | 60803 | (312) 623-4382 | (219) 865-0865 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| PRO-PUMP INC | 3750 ROOSEVELT ST | GARY | IN | 46408 | (219) 884-6097 | (219) 884-6098 |
| PUMP SUPPLY INC | 860 CHURCH RD | ELGIN | IL | 60123 | (847) 841-7867 | (847) 841-8282 |
| QUALITY CONTROL SYSTEMS INC | 1336 W NEW MONEE RD | CRETE | IL | 60417 | (708) 304-2208 | (708) 304-2211 |
| RAUCH CLAY SALES CORP | 3037 S CHRISTIANA | CHICAGO | IL | 60623 | (773) 254-0775 | (773) 254-3185 |
| RELIABLE MATERIALS LYONS LLC | 4226 S LAWNDALE | LYONS | IL | 60534 | (708) 447-1100 | (708) 447-1112 |
| REYES GROUP LTD | 15515 S CRAWFORD AVE | MARKHAM | IL | 60428 | (708) 596-7100 | (708) 596-7184 |
| RNR TRUCKING INC | 249 E RT 6 STE 152 | MORRIS | IL | 60450 | (815) 302-0118 | (815) 526-7262 |
| RPS ENGINEERING INC | 1300 CRISPIN DR | ELGIN | IL | 60123 | (847) 931-1950 | (847) 931-4274 |
| RST INSTRUMENTS | 1586 MIRA MAR AVE | SEASIDE | CA | 93955 | (831) 899-1632 | (604) 540-1005 |
| RUBINOS & MESIA ENGINEERS INC | 200 S MICHIGAN AVE, STE 1500 | CHICAGO | IL | 60604 | (312) 663-5879 | (312) 870-6636 |
| SAC INC | 3870 GARNER RD | RIVERSIDE | CA | 92501 | (951) 888-1673 | (951) 823-8850 |
| SHERIDAN PLUMBING & SEWER INC | 6754 W 74TH ST | BEDFORD PARK | IL | 60638 | (708) 475-7100 | (708) 475-7138 |
| SIEMENS INDUSTRY INC | 1701 GOLF ROAD, STE 3-500 | ROLLING MEADOWS | IL | 60008 | (847) 803-2700 | (847) 803-2733 |
| SOLING, C E & ASSOC LLC | 1121 VIRGINIA AVE | LIBERTYVILLE | IL | 60048 | (847) 406-8493 | (847) 406-8493 |
| SPAAN TECH INC | 311 S WACKER DR, STE 2400 | CHICAGO | IL | 60606 | (312) 277-8800 | (999) 999-9999 |
| SPECTRUM CHEMICALS MFG CORP | 769 JERSEY AVE | NEW BRUNSWICK | NJ | 08901 | (732) 214-1300 | (310) 516-7512 |
| STEINER ELECTRIC CO | 1250 TOUHY AVE | ELK GROVE VILLAGE | IL | 60007 | (847) 228-0400 | (847) 228-1352 |
| SUNSET LOGISTICS | 8 PROSPER CT | LAKE IN THE HILLS | IL | 60156 | (847) 658-4342 | (847) 658-5210 |
| SWANSON FLO | 555 EXECUTIVE DR | WILLOWBROOK | IL | 60527 | (630) 323-6677 | (630) 323-0602 |
| TAYLOR ELECTRIC CO | 7811 S STONY ISLAND AVE | CHICAGO | IL | 60649 | (773) 346-5658 | (773) 346-5659 |
| TEAM D3 | 28 N CLARK ST, STE 450 | CHICAGO | IL | 60602 | (312) 380-4830 | (312) 275-7197 |
| TEMPERATURE EQUIPMENT CORP | 17725 VOLBRECHT RD | LANSING | IL | 60438 | (708) 418-0900 | (708) 332-9598 |
| THERMOSYSTEMS INC | 960 INDUSTRIAL DR, UNIT 1 | ELMHURST | IL | 60126 | (630) 693-0920 | (630) 693-0921 |
| THOMAS & BETTS | 825 HARPER DR | ALGONQUIN | IL | 60102 | (847) 812-1090 | (847) 458-4518 |
| TIERRA ENVIRONMENTAL SVCS INC | 3821 INDIANAPOLIS BLVD | EAST CHICAGO | IN | 46312 | (219) 398-4000 | (219) 398-5000 |
| TRANE U S INC AURORA PARTS SUPPLY | 2601 BEVERLY DR | AURORA | IL | 60502 | (630) 499-9650 | |
| VISION PAINTING & DECORATING | 12000 S MARSHFIELD AVE | CALUMET PARK | IL | 60827 | (708) 389-5014 | (708) 389-5190 |
| VIXEN CONSTRUCTION INC | 7600 W 79TH ST | BRIDGEVIEW | IL | 60455 | (708) 728-1950 | (708) 728-1960 |
| WAGNER, DONALD R, CONSULTANT | 9457 SUNNY CREEK LN | ST LOUIS | MO | 63127 | (314) 729-7700 | (314) 729-7775 |
| WALSH CONSTRUCTION CO OF IL | 929 W ADAMS ST | CHICAGO | IL | 60607 | (312) 563-5408 | (312) 563-5447 |
| WES TECH ENGINEERING | 3605 SOUTHWEST TEMPLE | SALT LAKE CITY | UT | 84115 | (801) 265-1000 | (801) 265-1080 |
| WESCO DISTRIBUTION INC | 200 E LIES RD | CAROL STREAM | IL | 60188 | (630) 862-8860 | (999) 999-9999 |
| WG TECHNOLOGIES | 954 W WASHINGTON BLVD | CHICAGO | IL | 60607 | (847) 645-9535 | (224) 293-6799 |
| WHIPPS INC | 370 S ATHOL RD | ATHOL | MA | 01331 | (978) 249-7924 | (978) 249-3072 |
| WISS JANNEY ELSTNER ASSOC INC | 330 PFINGSTEN RD | NORTHBROOK | IL | 60062 | (847) 272-7400 | (847) 291-4813 |
| XYLEM WATER SOLUTIONS USA, INC | 9661 194TH ST | MOKENA | IL | 60448 | (708) 889-1560 | (708) 342-0491 |
| ZURICH SURETY | 300 S RIVERSIDE PLAZA | CHICAGO | IL | 60606 | (312) 496-9000 | (866) 787-1046 |