| Company Name | Address | City | State | Zip Code | Phone Number | Fax Number |
| AXIS TRACK REPORT | 5543 EDMONDSON PK #227 | NASHVILLE | TN | 37211 | (615) 668-1177 | (615) 515-6048 |
| BIRMINGHAM RAIL & LOCOMOTIVE | PO BOX 530157 | BIRMINGHAM | AL | 35253-0157 | (205) 424-7245 | (205) 424-7436 |
| CONSTRUCT CONNECT | 30 TECHNOLOGY PKWY S, STE 100 | NORCROSS | GA | 30092 | (800) 364-2059 | (866) 570-8187 |
| DATABID | 433 PENN ST | NEWTOWN | PA | 18940 | (888) 929-3282 | (888) 929-9293 |
| HILTI | 2828 N CAMBRIDGE AVE, #103 | CHICAGO | IL | 60657 | (312) 972-1104 | (918) 260-4637 |
| HOLLAND CO | 1000 HOLLAND DR | CRETE | IL | 60417 | (708) 672-2400 | (708) 672-0119 |
| HUNTER INFORMATION | 5543 EDMONDSON PIKE, #227 | NASHVILLE | TN | 37211 | (615) 668-1177 | (615) 515-6048 |
| J A WATTS INC | 1011 WARRENVILLE RD, SUITE 60 | LISLE | IL | 60532 | (800) 654-6145 | (999) 999-9999 |
| KIEWIT INFRASTRUCTURE CO | TWO PIERCE PL, STE 1600 | ITASCA | IL | 60143 | (773) 458-1250 | (773) 458-1342 |
| KNIGHT E/A INC | 221 N LASALLE ST | CHICAGO | IL | 60601 | (312) 577-3300 | (312) 577-3526 |
| MCDONAGH DEMOLITION INC | 7243 W TOUHY AVE | CHICAGO | IL | 60631 | (773) 276-7707 | (773) 276-7723 |
| MIDWEST REM ENTERPRISES INC | 2601 W LEMOYNE | MELROSE PARK | IL | 60160 | (708) 345-8099 | (708) 345-8196 |
| N & J RAILROAD CONTRACTORS INC | PO BOX 11996 | ST LOUIS | MO | 63112 | (314) 381-2277 | (314) 381-7512 |
| NATIONAL SIGNAL CORP | 47433 RYAN RD | SHELBY TOWNSHIP | MI | 48317 | (586) 997-9800 | (586) 997-9817 |
| NEXT LEVEL DIRECT LLC | 1610 S PRIEST DR, STE 110 | TEMPE | AZ | 85281 | (480) 353-2851 | (480) 829-1600 |
| NORTH AMERICA PROCUREMENT COUNCIL | P O BOX 40445 | GRAND JUNCTION | CO | 81504 | (302) 450-1923 | (302) 450-1925 |
| OBRIEN STEEL SVC | 1700 NE ADAMS ST, PO BOX 5699 | PEORIA | IL | 61603 | (309) 671-5800 | (309) 671-5213 |
| OHIO GRATINGS INC | 5299 SOUTHWAY ST SW | CANTON | OH | 44706 | (330) 477-6707 | (330) 477-7872 |
| PLYMOUTH TUBE CO | 29W150 WARRENVILLE RD | WARRENVILLE | IL | 60555-3528 | (630) 393-3550 | (630) 393-3551 |
| PRIME VENDOR INC | 4622 CEDAR AVE, BLDG 5, STE 123 | WILMINGTON | NC | 28403-6916 | (800) 746-9554 | (910) 726-1973 |
| RAILPROS | 1320 GREENWAY DR, STE 490 | IRVING | TX | 75038 | (847) 975-3165 | (866) 762-7619 |
| RAILWORKS TRACK SERVICES INC | 512 TWIN RAIL DR, STE 400 | MINOOKA | IL | 60447 | (815) 521-3340 | (815) 521-3344 |
| REPNET INC D/B/A RHINO | 280 UNIVERSITY DR SE | WASECA | MN | 56093 | (866) 622-4343 | (888) 522-4343 |
| SNC SOLUTIONS | 496 N 600 E RD | GIBSON CITY | IL | 60936 | (217) 784-5212 | (217) 784-5899 |
| TRACK SERVICE INC | 810 W AVE "H" | GRIFFITH | IN | 46319 | (219) 924-2304 | (219) 924-2541 |
| TW METALS | 235 TUBEWAY DRIVE | CAROL STREAM | IL | 60188 | (630) 690-0110 | (888) 219-2648 |