SAP comes to my mind here :-) If they have at least one tiny step/foot in the door, they are good at upselling nearly everything. And they are continuously buy

SAP comes to my mind here :-) If they have at least one tiny step/foot in the door, they are good at upselling nearly everything. And they are continuously buying up other companies and integrating them (somehow questionable very often) and then selling this as new SAP product after replacing the former logo