Company stamp maker for Spain

A sello de empresa is not legally required in Spain, but it is expected on invoices, delivery notes and forms, and the CIF or NIF is the number counterparties check.

Open the stamp maker

Spanish practice treats the sello as standard without any statute demanding it. Where it does real work is on albaranes, presupuestos and any form handed over in person, and on paperwork submitted to an administration that still runs on paper.

What a company stamp in Spain usually carries

The company name with its legal form, so S.L., S.A. or S.L.U.
The CIF or NIF, the tax identification number, which for companies begins with a letter.
The registered address, and often the town and province.
Sometimes the Registro Mercantil entry.

Why make it digitally

Delivery notes and quotations are signed and stamped on the spot, and a stamp you can regenerate is one you cannot leave behind.
Registered details change, and a new die costs where an edit does not.
A rectangular stamp holds the name, the number and the address without cramping.

Questions

Is a company stamp required in Spain?

No. There is no legal obligation. Commercial practice expects it on invoices, albaranes and forms, and administrations handling paper often ask, so most companies keep one.

CIF or NIF?

The two have been unified: companies now use a NIF that begins with a letter identifying the legal form, though CIF is still the term most people use. Either way, it is that number which belongs on the stamp.

What shape?

Rectangular is the norm, because a Spanish company stamp usually carries a name, a tax number and an address rather than a name curved around a ring.

This describes common commercial practice rather than giving legal advice, and practice changes. Where a specific document matters, check the requirement with the body receiving it.