| WDWvdoh - District 6 - Pratz Bridge #s305-67-1.36 00 23 | Bethany | WV | — | ◇ UNVERIFIED |
| WEWvdoh - Elm Grove Bridges #35-470-3.62 | Wheeling | WV | — | ◇ UNVERIFIED |
| WKWvdoh - Korean War Veterans Bridge No 52-7 Spur - 001 (new Martinsville Bridge) | New Martinsville | WV | — | ◇ UNVERIFIED |
| WMWv Metal Wholesalers, INC | Summersville | WV | — | ◇ UNVERIFIED |
| WPWv Parkways Authority Bridge - #3021 N/s 0041-077/0031.44 (03021) | Ghent | WV | — | ◇ UNVERIFIED |
| WPWv Parkways Authority - Bridge 3043n #041-077/00-0051.06 | Pax | WV | — | ◇ UNVERIFIED |
| WWW & W Manufacturing Co, INC | Glendale | CA | — | ◇ UNVERIFIED |
| WIWyandotte Industries | Wyandotte | MI | — | ◇ UNVERIFIED |
| WLWyle Lab Electronic Enclosures | El Segundo | CA | — | ◇ UNVERIFIED |
| WGWyman Gordon Pa | Mountain Top | PA | — | ◇ UNVERIFIED |
| WPWyman-gordon Pennsylvania, LLC | Mountain Top | PA | — | ◇ UNVERIFIED |
| WFWyoming Fire Fabrication Inc/dba Downey Welding | Shoshoni | WY | — | ◇ UNVERIFIED |
| WMWyoming Machinery Company | Casper | WY | — | ◇ UNVERIFIED |
| WMWyoming Machinery Company: in | Gillette | WY | — | ◇ UNVERIFIED |
| WPWythe Precision Machine | Max Meadows | VA | — | ◇ UNVERIFIED |
| WBWyzer Biosciences | Auburndale | MA | — | ◇ UNVERIFIED |
| XTXactra Technologies, Inc. | Rochester | NY | — | ◇ UNVERIFIED |
| XTXaloy Tanner Plating Div | New Castle | PA | — | ◇ UNVERIFIED |
| XFX Factor Machine & Design INC | Salem | OR | — | ◇ UNVERIFIED |
| XCXli Corporation | Rochester | NY | — | ◇ UNVERIFIED |
| XMX Machine INC (xmi) | Riverside | CA | — | ◇ UNVERIFIED |
| XX-mil,inc. | Mount Orab | OH | — | ◇ UNVERIFIED |
| XWX-Stream Waterjetting, LLC | Grand Forks | ND | — | ◇ UNVERIFIED |
| XMXtreme Machine INC. | Millville | UT | — | ◇ UNVERIFIED |
| XTXxpress Transportation INC. | Oswego | NY | — | ◇ UNVERIFIED |
| YLY2 LLC | Pendleton | OR | — | ◇ UNVERIFIED |
| YLY2 LLC | Hillsboro | OR | — | ◇ UNVERIFIED |
| YMYachtfish Marine | Seattle | WA | — | ◇ UNVERIFIED |
| YVYadkin Valley Mechanical, INC. | Rural Hall | NC | — | ◇ UNVERIFIED |
| YPYale Polishing & Plating | Chicago | IL | — | ◇ UNVERIFIED |
| YSYankee Screw Products CO | Madison Heights | MI | — | ◇ UNVERIFIED |
| YFYates Foil USA INC | Bordentown | NJ | — | ◇ UNVERIFIED |
| YTYellowstone Track Systems, LLC | Sheridan | WY | — | ◇ UNVERIFIED |
| YTYellowstone Track Systems, LLC | Sheridan | WY | — | ◇ UNVERIFIED |
| YTYellowstone Track Systems, LLC | Sheridan | WY | — | ◇ UNVERIFIED |
| YOYe Olde Machine Shoppe CO. | Orem | UT | — | ◇ UNVERIFIED |
| YMYesterday's Machine Shop | Schenectady | NY | — | ◇ UNVERIFIED |
| YSYH Sheet Metal Co | Oakland | CA | — | ◇ UNVERIFIED |
| YUYkk USA INC S&b Products | Lawrenceburg | KY | — | ◇ UNVERIFIED |
| YPYolandas Plating | Los Angeles | CA | — | ◇ UNVERIFIED |
| YHYork Haven Fabricators, INC. | York Haven | PA | — | ◇ UNVERIFIED |
| YSYork Sheet Metal/york | York | PA | — | ◇ UNVERIFIED |
| YAYorozu Automotive Tennessee | Morrison | TN | — | ◇ UNVERIFIED |
| YAYoung and Daughters | Corinth | MS | — | ◇ UNVERIFIED |
| YCYoung Cimtech LLC | New Albany | IN | — | ◇ UNVERIFIED |
| YCYoung CORP Nordick Div | Woodinville | WA | — | ◇ UNVERIFIED |
| YAYoungers and Sons Manufacturing CO INC | Viola | KS | — | ◇ UNVERIFIED |
| YMYoung Machine CO. | Monticello | UT | — | ◇ UNVERIFIED |
| YKY-tec Keylex Toyotetsu of Alabama (ykta) | Madison | AL | — | ◇ UNVERIFIED |
| YIYulista Integrated Solutions, LLC | Huntsville | AL | — | ◇ UNVERIFIED |
| YIYulista Integrated Solutions, LLC. Gateway | Huntsville | AL | — | ◇ UNVERIFIED |
| YCYuma Chrome Plating | Yuma | AZ | — | ◇ UNVERIFIED |
| YWY & W Technologies - Noconnah | Memphis | TN | — | ◇ UNVERIFIED |
| ZMZachry Moss Point Fabrication Facility | Moss Point | MS | — | ◇ UNVERIFIED |
| ZMZala Machine Co., INC. | Hillsborough | NJ | — | ◇ UNVERIFIED |
| ZUZanasi USA | Maple Grove | MN | — | ◇ UNVERIFIED |
| ZZandur | Front Royal | VA | — | ◇ UNVERIFIED |
| ZMZankowski Machine | Hazleton | PA | — | ◇ UNVERIFIED |
| ZLZatec LLC | Dighton | MA | — | ◇ UNVERIFIED |
| ZFZbm Fairmont | Fairmont | MN | — | ◇ UNVERIFIED |
| ZTZebra Test Facility | Hyattsville | MD | — | ◇ UNVERIFIED |
| ZHZedwick Holdings, LLC | Owensboro | KY | — | ◇ UNVERIFIED |
| ZIZeiger Industries, Inc. | Canton | OH | — | ◇ UNVERIFIED |
| ZAZephyr Aircraft Engines INC | Zephyrhills | FL | — | ◇ UNVERIFIED |
| ZWZephyr Wind Services | Hutchinson | MN | — | ◇ UNVERIFIED |
| ZRZero Runout LLC | Kaukauna | WI | — | ◇ UNVERIFIED |
| ZTZeta Tool, L.l.c. | Troy | MI | — | ◇ UNVERIFIED |
| ZLZf Lemforder CORP | Lapeer | MI | — | ◇ UNVERIFIED |
| ZGZia-tech Gear Manufacturing INC. | Pittsburgh | PA | — | ◇ UNVERIFIED |
| ZBZierke Built Manufacturing INC | Winnebago | MN | — | ◇ UNVERIFIED |
| ZIZincnation INC | Anaheim | CA | — | ◇ UNVERIFIED |
| ZLZinot LLC | Rochester | NY | — | ◇ UNVERIFIED |
| ZFZip Fasteners Products, INC. | Rockford | IL | — | ◇ UNVERIFIED |
| ZIZip-jack Industries | Elmsford | NY | — | ◇ UNVERIFIED |
| ZPZito's Plating & Polishing Works, INC. | New Orleans | LA | — | ◇ UNVERIFIED |
| ZLZjjc, LLC | Yorktown | VA | — | ◇ UNVERIFIED |
| ZMZ Metal Works, INC. | Stuart | FL | — | ◇ UNVERIFIED |
| ZMZ Metal Works, INC. | Stuart | FL | — | ◇ UNVERIFIED |
| ZMZ&m Machine, LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| ZSZm Sheet Metal, INC. | Chantilly | VA | — | ◇ UNVERIFIED |
| ZMZtech Mfg, LLC | Tempe | AZ | — | ◇ UNVERIFIED |
| ZAzuniga aluminum corp | Miami | FL | — | ◇ UNVERIFIED |
| ZAzuniga aluminum corp | Miami | FL | — | ◇ UNVERIFIED |
| ZAZybek Advanced Products | Boulder | CO | — | ◇ UNVERIFIED |