Go-Ahead reported its full-year results yesterday, with turnover and profits up 5%, mainly due to growth in its bus business. The company operates more than 2,500 buses and runs ground-handling services for 18 airports.

It praised its staff for their handling of the chaos that followed the attacks. It said bus and rail services in London and the south-east had shown growth in the year to July 2. "Looking ahead for the new financial year the recent London terrorist attacks will clearly have a negative impact on revenue, though the effect is partially mitigated by existing revenue and profit share arrangements with the franchising authority," it added.

It said the attacks "underlined" the need for its approach to CCTV and extra security.

The firm said it was "disappointed" to have failed to win bids for the Thameslink and Great Western train franchises this year. It is still bidding for the integrated Kent franchise.

Overall the company reported turnover rising 5% to �1.3bn and underlying profits, excluding exceptional items, up 5% to �96m.

The company's bus division grew by 8% due to price rises rather than increases in the number of passengers carried. However, increases in labour and fuel costs led to a slight dip in profits. "With a continuing rise in the oil price, margins will continue to be under pressure going forward," the company said in a statement.

Its trains division showed a dip in turnover due to the loss of the Thames Trains franchise in 2004, although underlying revenue was up.

Its aviation services division reported turnover up 5%. Its airports car parking division was the strongest performer, with revenue up 22% due to an increase in prices and in the number of parking spaces. It said it is trying to turn around its ground-handling businesses at airports.

Its Meteor Parking business had a "successful year", the company reported.