Action Manufacturing CO | Atglen | — | ● ACTIVE |
Advanced Lubrication Specialties INC | Bensalem | 100–499 | ● ACTIVE |
| CKCalumet Karns City Refining | Karns City | 100–499 | ● ACTIVE |
Erie Bronze & Aluminum CO | Erie | 1–19 | ● ACTIVE |
| MEMonroe Energy, LLC - Trainer Refinery | Trainer | 100–499 | ● ACTIVE |
| APAllegheny Petroleum Products CO. | Wilmerding | 20–99 | ● ACTIVE |
| AMAtlas Minerals & Chemicals INC | Mertztown | 20–99 | ● ACTIVE |
Bp Lubricants USA INC. | Warminster | 20–99 | ● ACTIVE |
Airborne Data Imaging Group, INC | Flourtown | — | ● ACTIVE |
Allegheny Petroleum Products CO | Monroeville | — | ● ACTIVE |
Alpha Lubricants, LLC | Canonsburg | — | ● ACTIVE |
Big Rock Paving LLC | Mount Wolf | — | ● ACTIVE |
Murn Incorporated | Glassport | — | ● ACTIVE |
Ppc Lubricants, LLC | Jonestown | — | ● ACTIVE |
Sentinel Chemicals, INC | Philadelphia | — | ● ACTIVE |
United Oil CO | Pittsburgh | — | ● ACTIVE |
| CICrafco, INC. - Allentown | Allentown | 20–99 | ◐ LIKELY ACTIVE |
| AIAnthracite Industries INC | Sunbury | — | ◐ LIKELY ACTIVE |
| AMArcelormittal Monessen Coke Plant | Monessen | — | ◐ LIKELY ACTIVE |
| ECElk CO of Texas Llc/myerstown | Myerstown | — | ◐ LIKELY ACTIVE |
| ETEnergy Transfer Marcus Hook Terminal | Marcus Hook | — | ◐ LIKELY ACTIVE |
Ifs Industries Inc/reading Plt | Reading | — | ◐ LIKELY ACTIVE |
| MSMontour Steam Electric Station | Washingtonville | — | ◐ LIKELY ACTIVE |
| RSRussell Std Mfg Mercer | Mercer | — | ◐ LIKELY ACTIVE |
| SRSchuylkill River Tank Farm | Philadelphia | — | ◐ LIKELY ACTIVE |
| URUnited Refining Co/warren Plt | Warren | — | ◐ LIKELY ACTIVE |
| USUniversal Stainless & Alloy Prod/prp Division | Titusville | — | ◐ LIKELY ACTIVE |
| USUS Steel Mon Valley Works - Clairton Plant | Clairton | — | ◐ LIKELY ACTIVE |
| VRVs Rubber | Lebanon | — | ◐ LIKELY ACTIVE |
| WPWest Penn Oil | Warren | — | ◐ LIKELY ACTIVE |
| FIFranklin Ind Co/franklin | Franklin | — | ◐ LIKELY ACTIVE |
| HKHenry Kimberton Fac | Kimberton | — | ◐ LIKELY ACTIVE |
| IWIntl Waxes Inc/farmers Valley | Smethport | — | ◐ LIKELY ACTIVE |
| KMKoch Materials CO | Reading | — | ◐ LIKELY ACTIVE |
| PSPennsy Supply Inc/fiddlers Elbow North Quarry | Hummelstown | — | ◐ LIKELY ACTIVE |
| SKSuit Kote | Meadville | — | ◐ LIKELY ACTIVE |
| BABp America INC | Warminster | — | ◇ UNVERIFIED |
| FCFbc Chemical CORP. | Mars | — | ◇ UNVERIFIED |
| ITIndustrial Terminal Systems, INC. | Pittsburgh | — | ◇ UNVERIFIED |
| MAMarathon Ashland Petro Floreffe Term/asp | Jefferson | — | ◇ UNVERIFIED |
| MAMidland Asphalt Materials | Clearfield | — | ◇ UNVERIFIED |
| NPNortheast Paving Bridgeville Plt | Bridgeville | — | ◇ UNVERIFIED |
| PSPennsy Supply INC Penn Twp Facility | Newville | — | ◇ UNVERIFIED |
| RARichards Apex Inc/lube Mfg Plt | Philadelphia | — | ◇ UNVERIFIED |
| TVThe Valvoline Company | Rochester | — | ◇ UNVERIFIED |
| AAAllan a Myers Lp/ Devault Asphalt Plt | Malvern | — | ◐ LIKELY ACTIVE |
| AMAllan Myers Lp/coatesville Asphalt Plt | Coatesville | — | ◐ LIKELY ACTIVE |
| BMBarletta Materials & Const/nescopeck | Nescopeck | — | ◐ LIKELY ACTIVE |
| BABarrett Asphalt Inc/morrisville | Morrisville | — | ◐ LIKELY ACTIVE |
| BBBishop Brothers Const Co/wysox Plt | Wysox | — | ◐ LIKELY ACTIVE |