Established in 1953 and the largest operator in the country, which cuts both ways: they own and crew their own Galápagos vessels rather than reselling somebody's charter, and they are nobody's idea of an off-the-beaten-track outfit.
If you want a Galápagos ship with a naturalist guide and a fixed itinerary approved by the national park, this is the company the rest of the industry buys from. Office hours 08:00 to 17:00 Ecuador time.
They run two WhatsApp lines and label them clearly: one for people calling from inside Ecuador, one for everybody else.