In December of 1920, a small group of Greenwich business and professional men, feeling that it was time to have a men's luncheon club where views on business and community affairs could be discussed, decided that the Rotary concept of "Service Above Self" seemed to meet their ideals.

The Rotary Club of Greenwich was then chartered in April 21, 1921. Since that time, Greenwich Rotarians have been volunteering their time and resources to help others in the Greenwich community and throughout the world. The Greenwich Club has been a leader at the local and international level, sponsoring the chartering of many neighboring Rotary Clubs, and serving as the home club of Charlie Pettengill, Sr. 1964-1965 President of Rotary International, and 1995-96 District Governor Jim Cooper.