Aylesbury Grammar School, Great Missenden Church of England Combined School and Waddesdon Church of England School have also proved they are among the best of the best. The trio make up 234 schools that have appeared twice after being judged to be particularly successful in both of their inspections over the past 12 years.
Steve Harvey, headteacher at Aylesbury Grammar School, said he hoped there would be another excellent report when the school was next inspected.
He explained: "We have extremely talented and able staff who set the students very high standards. We are a great believer in educating the whole person, not only in lessons but in other things provided for them."
Mr Harvey said the school also enjoyed success in sport, with some boys now England internationals, and music, with the jazz band competing in national finals along with maths and physics teams.
He said: "We encourage them to get themselves involved in these sort of things and believe it will aid them with their education and examinations."
Rozalyn Thompson is head of Great Missenden Church of England Combined School.
She said she was 'over the moon' at the news.
She said: "This is down to the staff, who are fantastic. They are well looked after but give back so much in terms of extra curricular activities through the goodness of their heart which makes the school such a happy place to be.
"The children also work hard for teachers they like and give their all for them."
Mrs Thompson said staff were trying to create an atmosphere where it is 'cool to achieve' throughout the school and stressed the emphasis was on trying to improve for the future.
She said: "There is plenty of work still to be done and it is all part of an ongoing process."
Alan Armstrong, head at Waddesdon Church of England School, said he was very pleased when he received the news in a letter last week.
He said: "It is nice our work has been recognised in this way.
"This is down to the hard work and skill of our talented staff, the belief and hard work of our young people and the support of parents.
But whatever has happened in the past is history. We will do all we can to improve the life chances for our young people here."

tim.green@bucksherald.co.uk