The Sun Magic 44 was built by Jeanneau, a French company that was founded in 1957 by Henri Jeanneau. Jeanneau started as a manufacturer of wooden powerboats, but soon expanded to fibreglass and sailboats. Jeanneau became one of the leading sailboat builders in Europe, producing a range of models from dinghies to yachts. Jeanneau was acquired by Groupe Beneteau in 1995, but continues to operate as a separate brand. Jeanneau is still in business and produces a variety of sailboats and powerboats.
The Atlantic 44 was built by Olympic Marine, a Greek company that was established in 1974 by George Andreadis. Olympic Marine specialized in building sailing yachts based on designs from renowned naval architects. Olympic Marine also offered charter, brokerage, and maintenance services. Olympic Marine ceased operations in 2010 due to the economic crisis in Greece.