The management team - made up of Jackie Wall, Mark Fletcher, Thane Goodrich and Jafar Golnabi - purchased the remaining shareholding of the firm from Bob Thomas in the Intercrop Group of companies. The firm grows a wide range of salad, spinach, baby leaf and herb products.
Thomas will remain as group chairman and act as a consultant to the management team.
A representative for the management team said: "Thomas's drive and enthusiasm have taken Intercrop from 100ha in 1991 in the UK to more than 750ha in the UK and Spain of intensive speciality salads.
"We are committed to the continued development of the businesses and to the provision of a first-class service to all customers."
To support the new management team, Intercrop has appointed Tom Bulpitt to the new position of UK senior operations manager.
Bulpitt joins the company from another Kent-based lettuce grower, LJ Betts.