| PCPrecision Custom Components, LLC | York | — | ◐ LIKELY ACTIVE |
| RSR.h. Sheppard Co., INC. | Hanover | 500+ | ◐ LIKELY ACTIVE |
| SMSlothower Machine Shop LLC | York | — | ◐ LIKELY ACTIVE |
| AIAdvanced Ind Svc Piping & Fabrication York | York | — | ◐ LIKELY ACTIVE |
| BMB&b Metal Finishing INC | Manchester | — | ◐ LIKELY ACTIVE |
| FSFinishing Sys Metal Prep Plt | York | — | ◐ LIKELY ACTIVE |
| GIGamlet, Incorporated | York | — | ◐ LIKELY ACTIVE |
| MFMas Fab, Incorporated Dba Formit Steel Company | Red Lion | — | ◐ LIKELY ACTIVE |
| MMMi-kee-tro Metal Mfg | York | — | ◐ LIKELY ACTIVE |
| SMStambaugh Metal Inc/hanover | Hanover | — | ◐ LIKELY ACTIVE |
| SIStrip It Clean Inc/york | York | — | ◐ LIKELY ACTIVE |
| SISurtech Ind Inc/york 915 Borom Rd | York | — | ◐ LIKELY ACTIVE |
| YCYoe Construction INC Fabrication Shop No 1 | Dallastown | — | ◐ LIKELY ACTIVE |
| ABAcco Babcock Princess St York | York | — | ◇ UNVERIFIED |
| AMAcco Material Handling Solutions Inc/york | York | — | ◇ UNVERIFIED |
| ANAmerican National Can CO | Hanover | — | ◇ UNVERIFIED |
| BMB&b Metal Finishing INC | York | — | ◇ UNVERIFIED |
| EOElectro-platers of York INC | Wrightsville | — | ◇ UNVERIFIED |
| FPFox Pools Parts Mfg | York | — | ◇ UNVERIFIED |
| GUGerhardt USA Chrome Plating Plt Dallastown | Dallastown | — | ◇ UNVERIFIED |
| IPInd Polishing & Grinding/york | York | — | ◇ UNVERIFIED |
| MCMauell Corporation-utility Room | Dillsburg | — | ◇ UNVERIFIED |
| NYNew York Wire | Hanover | — | ◇ UNVERIFIED |
| NYNew York Wire Weaving Facility | York | — | ◇ UNVERIFIED |
| OSOsram Sylvania INC | York | — | ◇ UNVERIFIED |
| SUSkf USA Inc/hanover Plt | Hanover | — | ◇ UNVERIFIED |
| TITekgard Inc/york | York | — | ◇ UNVERIFIED |
| WMWagman Metal Products INC | York | — | ◇ UNVERIFIED |
| YSYork Sheet Metal/york | York | — | ◇ UNVERIFIED |
| ATApex Tool Group | York | 100–499 | ◐ LIKELY ACTIVE |
| ANAtos North America | York | 20–99 | ◐ LIKELY ACTIVE |
| BBBackyard Buddy, LLC | Hanover | 20–99 | ◐ LIKELY ACTIVE |
| BBoxwood | York | 100–499 | ◐ LIKELY ACTIVE |
| CTCapitol Tool | New Cumberland | 1–19 | ◐ LIKELY ACTIVE |
| CCCrown Cork & Seal USA, Inc. - Hanover Plant | Hanover | 20–99 | ◐ LIKELY ACTIVE |
| DIDonsco Inc. Machine Shop | Wrightsville | 20–99 | ◐ LIKELY ACTIVE |
| GGDW-Factory | Hanover | 20–99 | ◐ LIKELY ACTIVE |
| GDGeneral Dynamics Ordnance and Tactical Systems, INC. | Red Lion | — | ◐ LIKELY ACTIVE |
| JMJoseph Machine Company, Inc | Dillsburg | 100–499 | ◐ LIKELY ACTIVE |
| KEKampel Enterprises Inc. | Wellsville | 20–99 | ◐ LIKELY ACTIVE |
| MHMurphy Handcuff LLC | Hanover | — | ◐ LIKELY ACTIVE |
| NSNF String & Son Inc hop | York Haven | 1–19 | ◐ LIKELY ACTIVE |
| OGOBE Graham Architectural Products Eden | York | 20–99 | ◐ LIKELY ACTIVE |
| PMPcg Management Group LLC | York | 100–499 | ◐ LIKELY ACTIVE |
| RWRiley Welding & Fabricating LLC | Hanover | 20–99 | ◐ LIKELY ACTIVE |
| WPWire-Mesh Products, Inc. | York | 20–99 | ◐ LIKELY ACTIVE |
| YPYC Precision Fabrication | York | 20–99 | ◐ LIKELY ACTIVE |
| YYork (Temtco) | York | 20–99 | ◐ LIKELY ACTIVE |
| 3F308 Fabrication LLC | Dover | — | ◇ UNVERIFIED |
| 3F308 Fabrication LLC | East Berlin | — | ◇ UNVERIFIED |