In a research note, investment bank Abaxbank, said: "With the centre-right's election win... we believe that all shares linked to infrastructure and those in niche sectors with strong business talent will mostly end up having a strong advantage."
Impregilo, Italy's largest builder, was up 2.7 per cent by Tuesday morning.
The company had headed a consortium to build the Sicily bridge under Berlusconi's 2001 to 2006 government but the outgoing centre-left government scrapped the plan.
Construction company Astaldi also rose 2.46 per cent.
Berlusconi counts cleaning up the Naples rubbish and rescuing Alitalia among his top domestic priorities.
Naples clean-up
Air France and KLM broke off talks aimed at taking over the cash strapped airline earlier this month.
In a radio interview on Tuesday, Berlusconi promised to "be in Naples three days a week" to deal with the crisis.
Election results indicated that he scored highly among Naples voters.
Berlusconi vowed to co-operate with Italy's neighbours in "deporting non-EU citizens who are here and do not have work or a home and are forced into crime in order to live".
With regard to Italy's foreign policy, Barbara Serra, Al Jazeera's correspondent in Rome, said: "Mr Berlusconi is a very flamboyant, international figure, very pro-American, he often stood shoulder to shoulder with George Bush [the US president].
"Italy was in Iraq after the invasion, they have since withdrawn but have troops in Afghanistan. As a rule, Berlusconi has been with the US rather than Europe, whether he will continue to be we will have to wait and see."
Italy's early election was called after the centre-left coalition government of Romano Prodi collapsed in January, having completed 20 months in power.