Pennsylvania
| Company | Category | Area | Address | Web | Contact person | |
| ROBERT WOOLER CO | Heat Treating Metal (Manufactu | Pennsylvania | 1755 LIMEKILN PIKE, DRESHER, Montgomery, Pennsylvania, 19025-1511, USA | - | - | Philip Keidel Jr |
| ROBERT WRIGHT ASSOC | Real Estate Appraisers | Pennsylvania | 11 S BROOKSIDE RD, SPRINGFIELD, Delaware, Pennsylvania, 19064-2403, USA | - | - | Robert Wright |
| ROBERT WYANT & SON | General Contractors | Pennsylvania | 1578 HUDDELL AVE, LINWOOD, Delaware, Pennsylvania, 19061-4122, USA | - | - | Robert Wyant |