[GianFabien]

Grizzled graybeard here. Warning: you don't want to read what my extensive experience suggests.

Your problem is more common than you might want to hear. Too many B2B SaaS vendors chasing the SME market beset by difficult economic times.

In my experience, the big ticket enterprise scale market comprises of BIG client companies who are so big and important that they will only deal with big, important vendors. Think Oracle, SalesForce, IBM, MS, and the Big 5 consulting / accounting firms.

Which leaves the SME sector, where the imperative is to manage costs, chase payments, please clients, quell staff issues and dream of work-life balance. In 99% of these cases, they don't have time to contemplate yet another data wrangling app with all its attendant issues.

If you are able demonstrate quick, quantifiable significant increase in revenue, then you might get retained on a contract basis to deliver on those promises. If the data volumes are truly large you may need to consider on-premises solutions.