Caroline Bonfield, who worked at Chiltern Radio as PA to the managing director, told jurors there was no way that female colleagues saw the former BBC presenter as a "sex pest". She said "it would have gone around the station like wildfire".
Travis, 68, is on trial accused of indecently assaulting 10 women and sexually assaulting another in incidents dating back to 1976 at the height of his fame. He denies all the charges.
Ms Bonfield and three other women who worked at the radio station all spoke warmly of Travis's "tactile" nature as they appeared as defence witnesses at London's Southwark Crown Court. Travis, known as DLT, is alleged to have inappropriately touched three female colleagues while working there in the early 2000s.
Another former colleague, Vicki Turner, told jurors she had "not ever" witnessed him acting inappropriately and would have reported him if she had, as she has with other colleagues in her career. She described Travis as "fun, very professional, very helpful, very kind".
Laurette Holmes also said she had "never" seen Travis behave inappropriately at the radio station.
Earlier, Travis's former personal assistant, Gemma Nurden, described him as a "lovely person".
Travis - on trial under his birth name David Griffin - denies 13 indecent assaults between 1976 and 2003 and one sexual assault in 2008.
The trial continues.