fiskaly GmbH

fiskaly GmbH builds the layer that puts a legally valid digital signature on a retail transaction. Founded in 2019 in Vienna, the company runs cloud-based compliance infrastructure for point-of-sale systems and omni-channel retailers across Europe, exposed as REST APIs for fiscalization, electronic invoicing, digital receipts, fiscal data archiving, and regulatory reporting. The security stakes are structural rather than hypothetical: more than ten billion digital signatures have been issued on the platform, across roughly one million active POS systems and more than 2,000 business customers. A signing service at that scale is a high-value target, and the integrity of what it signs is the product.

The Fiscalization API signs transactions without dedicated hardware, in line with country-specific frameworks including KassenSichV in Germany, RKSV in Austria, and Verifactu and TicketBAI in Spain. Around it sit an electronic invoicing API for European jurisdictions, a digital receipts service, a regulatory reporting service, and fiscal data archiving with customer data stored in certified European data centers. The work spans cloud infrastructure, REST API design, digital transaction signing, and compliance automation - with the added constraint that regulations keep moving and the services are updated to track them.

Operational credibility signals are concrete: the company holds ISO 27001 and ISO 9001 certifications, and its data residency commitments are European by design. It sells to point-of-sale software vendors, hospitality management systems, ERP providers, and omni-channel retail, with market presence in Germany, Austria, and Spain. Domain work covers fiscalization, electronic invoicing, digital receipts, fiscal data archiving, and regulatory reporting.