- Rock Resource Assessment using Seismic Refraction for Cut-Stone Quarry at Kaguma Village, Meru County May 2018 (Hutton Construction Ltd).
- Rock Resource Assessment using Electrical Resistivity Tomography (ERT) at Royal Nairobi Golf Course, Nairobi County March 2018 (Mr. Jackson Kanyarati).
- Rock Resource Assessment using Electrical Resistivity Tomography (ERT) at Engineer Area (Muthoni’s Farm) in Kinangop, Nyandarua County March 2018 (Mr. Lenana).
- Rock Resource Assessment ( Using Multichannel Analysis of Surface Waves (MASW) at Komo Area, Kiambu County, 2017 (Samba Ltd).
- Assessment of rock resources for ballast Using Electrical Resistivity Tomography at Suswa area, Narok County, Kenya 2016 (China Road and Bridge Corporation/Earthview Geoconsultants).
- Rock resource assessment using Seismic Refraction at proposed Kamulu Quarry Site, Kamulu Area, Machakos County, Kenya, 2016 (Herbert Kariithi Githinji & Rufus Gachanja Kanyari).
- Geological and geophysical survey proposed quarry site at Mavoko, Parcel No.; Mavoko block 2/124 (Katani), Mavoko Sub-county, Machakos County, 2015 (H-Young & Co. (EA) Ltd.)
- Evaluation of rock resource (hard stones) for ballast in six counties: Embu, Meru, Kitui, Machakos, Makueni and Tharaka /Nithi, 2014 (Geotech Lab Test Ltd).