The operator said it is expected to doubling the amount of marketing budget it currently ploughs into PPC but is hoping for a higher return during 2007 after selecting Netizen Digital.
The announcement follows a competitive pitch by Netizen Digital against at least one other undisclosed digital agency.
The win ends a successful first six months for the newly formed Netizen Digital following the acquisition of web design agency Netizen with Accord Search Marketing.
Hoseasons is understood to be the new agency’s biggest client win since the formation of the company, which has stated its intention to target the competitive yet lucrative travel sector.
Netizen Digital managing director Lewis Lenssen said: “There is no one-size-fits-all approach for managing travel search marketing campaigns.
“Travel consumers spend a significant amount of time researching and evaluating travel products online and their search journeys are often complex.
“You need a thorough understanding of the unique search behaviour of travel consumers in order to effectively manage travel search marketing.”
Hoseasons said it has “high expectations” following the decision to treble the amount of money it currently puts into paid-for search marketing.
Marketing director Tim Fullam said: “As a company operating within an ever changing industry, we recognise the importance of utilising and investing in online marketing.”
It is understood PPC advertising has been handled in-house for at least a year, although the operator has previously outsourced digital marketing to an agency specialist.