Pretty much all fiber services around Seattle offer a symmetric gig (CenturyLink, WaveG, Google Fiber/WebPass).
The only caveat I’ve heard of is that in some older buildings, WaveG offers only non-symmetric 1Gb down/100Mb up, but i am yet to encounter that myself. I didn’t look into this myself, but i have a feeling that one might actually be just a DOCSIS instead of the real fiber.
