I hired The Seattle Roofing Company for some major structural work on my property, and they absolutely knocked it out of the park. Even though "roofing" is in their name, Rory (the owner) and his right-hand guy Stephen handled a massive foundation and framing repair for me.
They excavated and poured a new continuous concrete footing, repaired cracked sections, and replaced badly rotted framing using weather-treated wood to get the structure perfectly level, solid, and stabilized.
Rory and Stephen were incredibly hard-working, straightforward, and left the site completely clean when they were done. I highly recommend them if you need serious structural or foundation work done right...