Instruments
- 1841
- Kegg Pipe Organ Builders
- Builders of pipe organs for church, synagogue, school, auditorium and residence.
- 1842
- Kerner & Merchant Pipe Organ Builders
- Specializes in the building, restoration, upgrading and maintenance of pipe organs in the Central New York region.
- 1845
- MEI Pipe Organ Services
- Providing tuning, repairs, releathering, sales and consulting services. Former representative of Möller for Mid-Atlantic states.
- 1846
- Mander, N.P. Ltd.
- Builders of new pipe organs, rebuilding, and restorations since 1936. Portfolio, news, discussion board, recordings.
- 1847
- Mascioni
- Italian builder of mechanical action church organs. Company history, shop photos, audio downloads.
- 1849
- Miller Pipe Organ Co.
- Pipe organs and custom woodworking. History, staff information, newsletter.
- 1850
- Mitteldeutscher Orgelbau A. Voigt
- English/German site; company history; details of new and restored organs; .wav audio samples.
- 1851
- Murphy, Patrick J. & Associates
- Tuners, restorers and rebuilders of mechanical and electric action pipe organs. List of tuning customers is included.
- 1852
- Nelson Barden & Associates
- Entirely devoted to the Boston University Symphonic Organ, which Barden restored.
- 1853
- New Century Products
- Makers of zimbelsterns (or cymbelsterns) for organs. Zimbelstern history, models, list of music with which a zimbelstern can be used.
- 1854
- Nichols & Simpson, Inc.
- Information about personnel and facilities, pictures and stoplists of completed installations and projects under construction.
- 1855
- Orgelbau- und Restaurierungswerkstatt Rainer Wolter
- German builder located on the Isle of Rügen. List and description of past projects, shop history and photographs.
- 1858
- Pels-D'Hondt Orgelbouw
- Belgian builder and restorer. Opus list, current projects, workshop information. Database of Flemish organs.