We report the discovery of fifteen previously unknown Wolf-Rayet ( WR ) stars found as part of an infrared broad-band study of candidate WR stars in the Galaxy . We have derived an empirically-based selection algorithm which has selected \sim 5000 WR candidate stars located within the Galactic Plane drawn from the GLIMPSE ( mid-infrared ) and 2MASS ( near-infrared ) catalogues . Spectroscopic follow-up of 184 of these reveals eleven WN and four WC-type WR stars . Early WC subtypes are absent from our sample and none show evidence for circumstellar dust emission . Of the candidates which are not WR stars , \sim 120 displayed hydrogen emission line features in their spectra . Spectral features suggest that the majority of these are in fact B supergiants/hypergiants , \sim 40 of these are identified Be/B [ e ] candidates . Here , we present the optical spectra for six of the newly-detected WR stars , and the near-infrared spectra for the remaining nine of our sample . With a WR yield rate of \sim 7 % and a massive star detection rate of \sim 65 % , initial results suggest that this method is one of the most successful means for locating evolved , massive stars in the Galaxy .