Instruments
- 1822
- Pels-D'Hondt Orgelbouw
- Belgian builder and restorer. Opus list, current projects, workshop information. Database of Flemish organs.
- 1823
- Peterson Electro-Musical Products
- Supplier of pipe organ parts and tuners. Company information, product descriptions, downloadable quote book.
- 1824
- Pole and Kingham
- Canadian firm's history, portfolio and news. Sound samples, area concert schedule.
- 1826
- Quoirin, Pascal
- Information about and photographs of the workshop, as well as new and restored instruments. Saint-Didier, France.
- 1827
- Reuter Organ Co.
- Numerous photos of organs under construction. Several brochures and searchable opus list available in Adobe Acrobat format.
- 1828
- Reynolds Associates, Inc.
- Information about their building, renovating, tuning and servicing of pipe organs, photo gallery and sound clips of their work. Based in Marion, Indiana, USA.
- 1829
- Richards, Fowkes & Co.
- Manufacturer of tracker action pipe organs in Ooltewah, Tennessee. Complete opus list.
- 1830
- Rieger Orgelbau
- English/German site of Austrian firm. History, photos and specifications of recent organs, virtual workshop tour.
- 1831
- Rosales Organ Builders, Inc.
- Biography of Manuel J. Rosales, Jr., complete opus list and testimonials.
- 1832
- Ross King Co.
- Texas organ builder; includes list of selected organs, with photos and specifications; also a guide for organ committee members.
- 1836
- Schuke, Karl, Berliner Orgelbau GmbH
- News, company history, construction features, list of organs.
- 1838
- Solid State Logic Organ Systems
- Electronic control systems for pipe organs. Catalogue of products, downloadable manuals, contact information.