Congratulations! What happiness it is to be able to celebrate another year of your life! You know you were the best boss I have ever had in my life, and even now that our ways have separated, you are still in my mind.
It is a privilege to have lived with someone as special as you. I can only hope for an incredible and fulfilling day, a giant party and, of course, the best companies.
They, the best companies, the people you love the most in this world, will witness another great day of your existence. Happy birthday, "boss"!