A small La Paz agency whose pitch is that they build the trip around you rather than selling a fixed departure: single-day excursions up to multi-day tours across the country, with hotels and transport folded in.
What they publish about terms is unusually specific for Bolivia — free cancellation, no deposit required, free hotel pick-up and drop-off. Those are the things that actually differ between La Paz agencies, and most of them keep quiet about all three.
No office address; contact is a mobile answered on WhatsApp and an email.
They publish no street address, so the pin here is the town centre.