Andere organisaties die een beroep deden op de know-how en ervaring van Geert : ADMB, Agfa Healthcare, Akzo Nobel DC, Astra Zeneca, AXA Belgium, Bayer, Besix, Blinc Sales Institute, Blueground Consulting, BNP Paribas Fortis, Bozar, C&A, Carrefour Groep, DAS Verzekeringen, Diamant Boart, Delhaize, DDMC, Edison Energy, Eli Lilly, Euroclear, FOD Binnelandse Zaken, FOD Economie, Franke NV, Hilti Belgium, Horeca Vorming, iAdvise, ING Belgium, Indaver, Insilencio, Jobat, Laurent-Perrier, Mars Belgium, Medtronic, Michelin, Noesis Solutions, Nu Skin, Proximus, Roche Pharmaceuticals, Roularta Media Group, Siemens, Texaco, tmp.adcomms, TNS/Dimarso, UZA, ,…