Company stamp maker for Dubai

A company stamp is effectively mandatory in commercial practice in Dubai, and the number that matters on it is the trade licence number issued by the DET or by your free zone authority.

Open the stamp maker

Dubai deserves its own answer rather than being folded into the UAE, because the licence that identifies your company is issued at emirate or free zone level. A mainland company is licensed by the Department of Economy and Tourism; a company in DMCC, JAFZA, DIFC or one of the other free zones is licensed by that authority, and the number on the stamp is the one a counterparty will check.

What a company stamp in Dubai usually carries

The trade name exactly as it appears on the trade licence.
The trade licence number, which is the detail that gets verified.
Very often the name in Arabic as well as English.
Sometimes the free zone or the words "Dubai, UAE" to identify the licensing authority.

Why make it digitally

Trade licences renew annually and details shift, which means a re-cut for a physical stamp and an edit for a digital one.
Invoices and quotations routinely bounce without a stamp, and a stamp you can produce the same hour is the difference between getting paid this month and next.
A company operating across a free zone and the mainland often needs more than one stamp.

Questions

Is a company stamp required in Dubai?

No statute makes it compulsory, but practice does. Invoices, quotations, letters and government submissions are frequently not accepted without one, which in practical terms is a requirement even though it is not a legal one.

Which number goes on a Dubai company stamp?

The trade licence number. For a mainland company that is the DET licence; for a free zone company it is the licence issued by that free zone authority. It is the number counterparties check, so it belongs on the stamp.

Do I need the stamp in Arabic?

Many companies use both languages, either on one stamp or as a matching pair. Government submissions more often expect Arabic, so if you deal with authorities it is worth having.

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.