First off, I want to congratulate you on your final results.
I congratulate you with all my heart on your success.
I would in any case like to congratulate him on his report.
We congratulate you on your ability to make things clear.
I should like to congratulate the Director and the staff on their work.
I would like to congratulate him on a fine report.
I congratulate him on his work and am happy to support.
I would like to congratulate the committee on its work.
I would like to congratulate him on the quality of the work he has done.
I also congratulate him on the quality of his report.