You can take as many employment visas as your business needs — there’s no fixed upper limit — but you must follow the quota system and related regulations:

1. Default Quota:
   Every new company in the UAE starts with 3 visa slots by default under the Ministry of Human Resources and Emiratisation (MOHRE).

2. Internal Work Permits:
   If you're hiring someone already inside the UAE (on a visit, canceled visa, or family visa), internal work permits are used. These do not count against your quota.

3. Requesting More Quotas:
   Once the first 3 are used, you can apply for more quota slots. It’s recommended to request 2 at a time for faster and smoother approval.

4. Emiratisation Requirement:
   As per current Emiratisation rules, when you reach 19 employees, your company will be required to hire at least one Emirati (UAE national).

5. Other Considerations:

   • The approval depends on business activity, office size, and justification for more manpower.

   • Keep your company license, office Ejari, and labor file in good standing to avoid delays.

   • You may need to provide salary details, contracts, and even business justification for large quota requests.

📌 Tip:
Always consult your PRO or service provider before applying for large numbers of visas. Staying updated with MOHRE and Nafis (for Emiratisation) policies is crucial to avoid penalties or rejections.

I think you can take unlimited visa under your company, but you have to show proof of visa needs to get more visa quota approval.