- Northwest Society for the prevention of cruelty of animals The Northwest S.P.C.A. is a private, non-profit corporation founded in 1980 for the purpose of promoting animal welfare and responsible pet ownership. Recognized as a charitable, 501(c)(3) organization by the IRS, our humane programs and services include pet facilitated therapy, lost and found pet referral, animal rescues, humane ...www.nwspca.org