Use commercial activities route; include investment/job thresholds.
Route overview
Typical timeline / duration: Successive one-year extensions; up to 3 years for EUR 500,000+ investment or 50+ jobs.
Important notes
Official IGI page confirms temporary residence for commercial activities and notes extension periods.
Large investments/jobs can affect support-evidence rules and duration: investments of EUR 150,000 or 25 jobs affect proof of means; EUR 500,000 or 50 full-time jobs can allow a 3-year stay.
Commercial/business activity; route-specific company documentation required.