Breadcrumb Home December 14, 2020 12:00 AM Spectrum Investment Advisors BPTW 2020 Tweet Share Share Email More Toggle Fullscreen Share Spectrum Investment Advisors made P&I's list of the best places to work for employers with 20 to 49 employees. Toggle Fullscreen Share Spectrum Investment Advisors has its headquarters in Mequon, Wis., and 24 employees. Toggle Fullscreen Share Spectrum Investment Advisors made P&I’s list of the best places to work in money management in 2017, 2019, and 2020.