Harvia | 6,241 followers on LinkedIn. Let's sauna. For the body, mind and spirit. Harvia is a global leader in the sauna and spa market. | Harvia is a global leader in the sauna and spa market. Founded in Finland in 1950, Harvia has grown from a small local workshop into a global leader in sauna and spa experiences. For over 75 years, we’ve helped people around the world find natural wellbeing through the power of steam, warmth, and tradition.