Benefit from financial support from the State
As you can read on the website of the National Institute of Vocational Training in Luxembourg:
"Private sector companies that are legally based in the Grand Duchy and carry out most of their activities there can obtain training support worth 15% (taxable) of the annual training investment.
The training courses organised must be aimed at employees who are affiliated to the Grand Duchy's social security system and have an employment contract (fixed-term or of indefinite duration).
The financial support is accessed by submitting a co-funding application."
Feel free to get in touch with their staff or see also Eligible expenses, the Co-funding application, specific subsidies for Luxemburgish courses, other Training formats and the useful Co-funding calculator