Full-year sales are now expected to rise around 7 percent, while net profit should rise between 5 and 6 percent, the group said in a statement.
Vinci described the economic and financial environment as “more volatile” but said it was benefiting from recurring revenue at its concessions activities and international exposure.
The company, which owns motorway concessions such as Autoroutes du Sud de la France (ASF), Cofiroute and Escota Arcour, is looking at buying German construction group Hochtief’s airport concessions business.
Vinci also finalized a multibillion-euro deal with the French state in June to build a new high-speed train line between the cities of Tours and Bordeaux.
The group, which competes with French peers Bouygues and Eiffage, said earlier this year it was targeting sales growth of more than 5 percent and net profit growth of close to 5 percent.
First-half earnings before interest and tax (EBIT) rose 15.3 percent to 1.57 billion euros ($2.28 billion) while net profit rose 15.7 percent to 814 million.
Analysts polled by Thomson Reuters I/B/E/S had on average predicted first-half EBIT of 1.54 billion euros and net profit of 805 million.
The company posted first-half sales of 17.3 billion euros on July 26 as well as a record 30 billion euro order book.
Vinci said its board of directors had decided to pay an interim dividend of 0.55 euro per share to be paid in cash on Dec. 15, up 5.8 percent year-on-year.
