Hamnett Enterprises GmbH is a holding company in Eschborn that builds, acquires, and backs operating businesses, run by one founder with software doing most of the administration. The posts under this tag are working notes from inside that structure: how the holding is organised, why certain decisions were taken, what the monthly operating rhythm looks like, and what changed when a task moved from a person to a script. They cover the consulting practice, the portfolio companies, and the cash discipline that ties them together. The figures are our own, with the period and the unit stated, and the mistakes stay in the record because they are the useful part. Read this tag to understand who you are dealing with before an engagement or a sale conversation, and to see how a small holding operates when it treats capital efficiency as the first rule.