The UK-based company is a member of the Global Fleet Services alliance, which has member companies operating almost one million vehicles worldwide, predominantly in the US and Europe.
In a statement-of-intent, penned for Lex employees, managing director Jon Walden wrote: 'Our goal is to become the leading full service leasing company in Europe. This means obtaining 10% of the market by 2005. We will achieve this goal by being a customer-focused sales-driven business.
'Customers are number one on our agenda. We will listen to what they say and act on it. When we make a promise we will keep it.'
The company also said it was aiming to offer general travel management services to corporate clients.
To achieve the desired expansion, Lex must expand its current vehicle fleet of 92,577 units to about 150,000 vehicles to take a 10% stake in the UK market and double that figure for a 10% stake in Europe.
Walden said Lex would consider acquisitions to achieve its growth aims.
By 2005, the company believes it will also offer rail and plane ticket booking services to corporate travellers. 'With the growing popularity of strategic alliances between companies, Lex Vehicle Leasing could become a fully integrated travel service provider in the corporate area,' the company said.
Explaining the importance of using alliances, Walden said: 'It is a low risk route for us, although it could be three to four years away. But developments in that area will be driven by our customers.'