| WWWilson Woodworks, INC. | Tolland | CT | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| WPWinsted Precision Ball CO | Winsted | CT | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| WFWinterbloom Farm, L.L.C. | Sterling | CT | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| WTWinthrop Tool, LLC | Deep River | CT | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| WWWire Works, INC. | Milford | CT | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| WCWise Components Inc. | Stamford | CT | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
| WBWitchdoctor Brewing Company LLC | Plainville | CT | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| WCWoodfree Crating Systems | Waterbury | CT | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| WSWood Services, LLC | Greenwich | CT | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| WLWoodworking Loft | Winsted | CT | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| WLWpp, LLC | Branford | CT | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| YMYankee Millwork, Sash & Door Company | Newington | CT | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| YOYe Olde Bookbindery LLC | Meriden | CT | Machinery Manufacturing333293 | — | ◇ UNVERIFIED |
| ZWZavarella Woodworking INC. | Shelton | CT | Furniture and Related Product Manufacturing337212 | — | ◇ UNVERIFIED |
| ZTZentex Tool Corporation | Danbury | CT | Transportation Equipment Manufacturing336310 | — | ◇ UNVERIFIED |
| ZFZuppardi's Frozen Foods, LLC | West Haven | CT | Food Manufacturing311412 | — | ◇ UNVERIFIED |
| ZIZuse, INC | Guilford | CT | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
