- Alaw Music Publishing (ABRSM sheet music) – Rhondda Cynon Taf, Wales UK
- Another Era Lutherie – harp maker in Edmonton, KY USA
- Antique Sound Workshop – Plymouth, Massachusetts USA
- Aoyama Harps – harp maker in Japan
- Apple Mountain Music, – Albuquerque, New Mexico USA
- Archets – Belgium
- Ardival Harps – harp maker in Strathpeffer, Ross-shire UK
- Argent Fox Harps – harp maker in Bloomington, Indiana US
- Anne-Marie Bekkaye – Munich, Germany
- Bioley, Claude – harp maker in Switzerland
- Blessley Instruments – harp maker in Vancouver, Washington USA
- Blevins Harp – harp maker in Grand Junction, Colorado USA
- Blue Heron Cases – Humboldt Co, California, USA
- Bönisch, Lutz u. Nina-Claudia – Traveling harp builders who spend most of the year in Greece, building harps in a truck.
- Camac Production – harp maker in France
- Campbell Harps – Port Townsend, WA USA.
- Clarenbridge Harps, sold by Folkcraft – Winsted, Connecticut USA
- Classic Harps Northwest (Aoyama Dealer) – Portland, Oregon USA
- Colin Harp Music – Larchmont, NY USA
- StephanieCurcio Publications – Stratham, NH USA
- Dahl Harps – harp maker in Duluth, MN, USA
- David Harps -harp maker in SAINTE-CROIX – Switzerland
- DeLuna Harps – Hooksett, NH, USA
- Paul Dolye Instruments – Galway, Ireland
- Dragonwhispers (home of Truitt levers) – Mt. Laguna, California USA
- Dresdner Harfen-Centrum – Dresden, Germany
- Dusty Strings – harp maker in Seattle, Washington USA
- Early Music Shop – London, Buckinghamshire UK
- East-Wood Harps – New Mexico USA
- Enchanted Harp, The – Puyallup, Washington USA
- Eric Early Harps – harp maker in Rangendingen – Germany
- Field, Dave – harp maker in Haddonfield, NJ USA
- Fisher, Larry Harps – harp maker in Winnipeg, Manitoba Canada
- Folkcarp (James Skeen) – Bristol, TN USA
- Folk Notes – Fort Wayne, IN USA
- GSC Music, makers of the Electric Celtic Harp, New Hampshire, USA
- Harfenbau (Bernhard Schmidt) — harpmaker in Owingen, Germany
- Harp and Dragon, The – Cortland, New York USA
- Harp Column Classifieds, The (used harps for sale by owners or dealers) – USA
- Harp Connection, The (also has listing of used harps) – Salem, Massachusetts USA
- Harp Nest – London ON Canada
- Harps and Harps – Taradale Victoria, Australia
- Harps Etc – Walnut Creek, CA, USA
- Harps for sale or Rent – a web page listing of used harps for sale by owners run by Celtic Harper
- Harps International – Burlington, Connecticut USA
- Harps of Lorien – harp maker in Questa, New Mexico USA
- Harps of Praise – Coshocton, Ohio, USA
- Harps of the South – harp maker in New Zealand
- Harpsatsang (Robert Hart) – harp maker in Byron Bay, New South Wales Australia
- Harpsounds – Pennsylvania USA
- Harp Studio – Oswego, NY USA
- Harpworld Music Co. (rentals) – So. California, California USA
- Heartland Harps – harp maker in Zirconia, North Carolina USA
- Here, Inc. – harp maker in Red Wing, Minnesota USA (aka Stoney End Harps)
- Highland Harps – Ft. Collins, CO USA
- Homewood Musicals – Sells Dusty Strings harps in Birmingham, Alabama.
- Horngacher GmbH – harp maker in Starnberg, Germany
- House of Harrari – harp maker in North Yehuda, Israel
- House of Musical Traditions – Takoma Park, Maryland USA
- Claus Henry Hüttel – Düren-Echtz, Germany
- International Music Service/Lyra Music Company – New York City, New York USA
- Jones, James – harp maker in Bedford, Virginia USA
- Josephus Harp – harp maker on Vancouver Island, British Columbia Canada
- Kemper’s Celtic Harps aka, Sligo Harps – harp maker and repairer in Silver Spring, Maryland USA
- Klangwerk – harp maker in Markt Wald, Germany
- Klangschiff Harps – Wachendorf, Germany
- Kleinman, Eric – harp maker in Germany
- Kolacny Music – Denver, Colorado USA
- Konzertharfenbau Riedel – harp maker in Pöhla. Germany
- Kortier, David – Harpmaker – harp maker in Duluth, Minnesota USA
- Kovac, John – Harpmaker – harp maker in Front Royale, Virginia USA
- Kurshner, Bernd – Germany (custom strings for harps)
- Lark in the Morning – Fort Bragg, California USA
- Lewandowski, Lynn – Brattleboro, VT USA
- Lewis Creek Instruments – harp maker in Michigan USA
- Lyon & Healy – harp maker in Chicago, Illinois USA
- Magical Strings – harp maker in Seattle, Washington USA
- Magus Harps – harp maker in Warpe, Germany
- Marini Made Harps, New Holland, PA USA
- Markwood Heavenly Strings & Cases – Phoenix, Oregon USA
- Melody Music – Houston, Texas USA
- Morley, Clive Harps – harp maker in Gloucestershire UK
- Mountain Glenn Harps – harp maker in Phoenix, Oregon USA
- Muma, Roger – Roger Muma Harps – harp maker in London, Ontario Canada
- Muernseer, Peter – harp maker in Germany
- Music Folk – Wester Grovers, MO USA
- Musicmakers Kits, Inc – Stillwater, Minnesota, Minnesota USA
- Jan Muyllaert, harp maker in Ardbraccan, Navan, Co.Meath, Ireland
- Nina’s Music – harp maker in Bethany, IL, USA
- Norris, Mark Harps harp maker in Peebles, Scotland
- Albrecht Nuchter – Germany
- Oakwood Instruments, harp maker in Leeds, West Yorkshire, UK
- Peter Petutschnigg – Lienz, Austria
- Pilgrim Harps – harp maker in Surrey UK
- Planet Harp – Macungie, Pennsylvania USA
- R-Harps – Denver, CO USA
- Rees, William, Instruments – harp maker in Rising Sun, Indiana USA
- Renaissance Workshop Company – UK
- Franz Reschenhofer– harp maker in Vien, Austria
- Riedel – harp maker in Pöhla, Germany
- Roberts Music – Victoria Australia
- Rubarth, Rick – harp maker in Denver, CO USA
- Salvi Harps – harp maker in Italy
- Milton Sanchez – Germany
- Schmidt, Bernhard — harpmaker in Owingen, Germany
- Henrik Schupp – Hamburg, Germany
- Sligo Harps , aka Kemper’s Celtic Harps – harp maker in Silver Spring, Maryland USA
- Song of the Wood – Black Mountain, NC USA
- Spruce Tree Music – Madison, WI USA
- Stanley and Stanley – harp maker in Kingston, Ontario Canada
- Stanley, Rick – Celtic Harps – harp maker in Douds, Iowa USA
- Starfish Designs – harp maker in Fort William, UK
- Stevens, George – harp maker in Lydd, Romney Marsh, Kent, England
- Stoney End Harps – harp maker in Red Wing, Minnesota USA
- Swanson Harps – harp maker in Boston, Massachusetts USA
- Sylvia Woods Harp Center – Glendale, California USA
- Thom, Andrew – Taroona, Tasmania, Australia
- Thormahlen Harps – harp maker in Corvallis, Oregon USA
- Thurau Harps – harp maker in Wiesbaden, Germany
- Timothy Harps – harp maker in Forest, Ontario Canada
- Triplett Harps – harp maker in Santa Barbara, California USA
- Vanderbilt Music – Bloomington, Indiana USA
- Virginia Harp Center – Richmond, Virginia USA
- Vixen Harps, Ottawa, Canada
- Werkstatt HarfenKlang – harp maker in Emmindingen, Baden, Germany
- West Coast Harps – harp sales in Victoria, BC, Canada
- Woods, Sylvia – Glendale, California USA
- Otto Zangerle – Ebbs, Austria