The following companies support the ASCOM initiative, and have products or drivers available which are ASCOM compatible. Note that the ASCOM requirements prohibit vendors from explicitly using the name ASCOM in conjunction with experimental, beta, or other unsupported products, so you may not see ASCOM explicitly mentioned for their early access products. Products are listed in alphabetic order by product name. Also, some of these links and products may be out of date. We rely on the authors to inform us of changes. This was reviewed in September 2023.