Building an on-demand storage marketplace in 12 weeks

Twistag built Keepwhat, an on-demand storage marketplace that replaces traditional self-storage for individuals and businesses alike, from concept to launch in twelve weeks and to €5,000 in monthly recurring revenue by month four. Traditional self-storage means a drive across town, a fixed unit larger than needed, a long contract and moving everything by hand. Keepwhat's thesis was that idle European warehouse capacity and people who simply needed somewhere convenient to put things had never been introduced. Twistag built the two-sided marketplace in React and Node.js on PostgreSQL and AWS, mobile-first, and deliberately deferred ERP integration in favour of a simple API boundary.

Self-storage has barely changed in thirty years. Someone moving flat, renovating, travelling for a season or simply short of space rents a fixed unit at a facility across town, signs a contract longer than they need, and moves everything themselves — twice. The inconvenience is the product. Businesses hit the same wall from a different angle: hotels accumulate off-season furniture, restaurants store equipment between renovations, retailers need overflow space before holiday peaks, and each rents from the same handful of generalist warehousing companies at premium rates. Meanwhile thousands of small and mid-sized European logistics providers had spare capacity sitting idle between contracts. The marketplace that would connect the two sides did not exist, and building one on a traditional software timeline meant months of planning before a single customer could test whether the thesis held.

Twistag shipped the marketplace in twelve weeks. Keepwhat onboarded its first three logistics partners as beta hosts and had thirty paying customers within four weeks of launch. The marketplace generated €5,000 in monthly recurring revenue by month four — ahead of the company's own projection for month eight. Conversion from inquiry to booking ran at 20%. By month four the platform had onboarded five major European logistics providers and 100 active customers. By month six Keepwhat had shifted from proving unit economics to scaling acquisition. Handling the first hundred transactions by hand surfaced the edge cases and friction points a premature ERP integration would have designed around wrongly.

Deferring the integrations turned manual fulfilment into a source of learning.