Donald Kerr and Mike Power have left Brentford's board.
The pair have decided to resign and will formally leave at the end of June.
Power said, "When I joined the board, I described it as a dream come true, and that's how I still feel. Our playoff win against Swansea and the victories against Arsenal and Chelsea last season will live long in my memory.
"Off the field, the moment we secured a building permit for the new stadium was another personal highlight."
Kerr states that new faces are needed for the coming challenges.
"We are preparing for the upcoming season in the Premier League, and we face challenges and opportunities in the coming years, therefore there is a need for new ideas and fresh voices," said Kerr.