piston is proud to be part of lewis. the same commitment to our clients, talented team and focus on results. now, on a global scale. lewis piston is a full service digital agency based in downtown san diego. piston builds and tracks brand relationships that span all media, all channels, and all marketing capabilities including seo, ppc/sem, shopping campaigns, media planning and buying, analytics and creative and branding services. lewis piston is the winner of the 2014, 2015 & 2016 imedia small agency of the year award, 2015 & 2016 landy search marketing awards, 2014 & 2015 san diego advertising association best of show award, and 5 national american advertising federation awards.