Ali Akbar College Store: Harmoniums made in India; online ordering.
DMS Harmoniums: Manufacturers and exporters of harmoniums. List of models with photographs.
Dwarkin & Son (P) Ltd: Inventor of the hand harmonium. Manufacturer and exporter of musical instruments from Calcutta, India. List of products and prices.
Keshav-Music Harmoniums: Offering hand-picked Indian harmoniums and harmoniums with extra notes, multifold bellows, special keys, and fine finish for melodious sound.
Reed Organ and Harmonium Marketplace: UK dealer; list of instruments wanted and available.
Reed Organ Society: International organization; list of officers, index of articles and available back issues, selected articles.
The Indian Harmonium: History, photos and links.
The Reed Organ and Harmonium Workshop: A division of the Springwood Music Workshops. Restoration and repairs in the United Kingdom.