Glendale has lost its Camden council grounds maintenance contract to Connaught from April 2010. Hewitt said: "Since [Glendale managing director] Nick Temple-Heald left to join English Landscapes we are considering our strategic direction for the future.
"There is a competitive tendering marketplace in the South East and London so we're looking at Glendale being more science/technology-based to distinguish itself."
Parkwood bought TEG Group's shares in compost company Verdia Horticulture last week and Hewitt said: "We're looking at the biofuel/energy market, the forestry consultancy business Glendale Environment and the use of trees and woodland's role in the reduction of CO2 and the generation of energy ahead of Copenhagen (UN climate change conference).
"We have lost Camden to Connaught. They bid £300,000 less than we were doing the contract at. The council is taking the most economically advantageous bid and Connaught will be there from the end of March 2010. There is a council meeting in December [to ratify the decision] but I don't think there's any doubt it will happen."
Camden's head of parks and open spaces Shaun Kiddell said the contract was being let at a "cheaper price" but final figures would not be agreed until the executive council meeting in December.