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We present the discovery of three new $\beta$ Cep pulsators, three newpulsators with frequency groupings, and frequency patterns in a B3Ib star, allof which show pulsations with frequencies as high as about 17 d$^{-1}$, with K2space mission photometry. Based on a Fourier analysis and iterativepre-whitening we present a classification and evaluate the potential forasteroseismic modelling. We include the lists of pulsation frequencies forthree new $\beta$ Cep pulsators, CD-28 12286, CD-27 10876, LS 3978, andadditional pulsation mode frequencies for the known $\beta$ Cep pulsator HD164741. In addition we characterise the regular frequency spacing found in thenew pulsator HD 169173, and discuss its origin. We place the newly discoveredvariables in a colour-magnitude diagram using parallaxes from Gaia-DR2,showcasing their approximate location in the massive star domain. Theidentified frequency lists of these multiperiodic pulsators are a good startingpoint for future forward seismic modelling, after identification of at leastone pulsation frequency from high-resolution time series spectroscopy and/ormulti-colour photometry.

New $\beta$ Cep pulsators discovered with K2 space photometry