The burgeoning TMT sector is no better demonstrated than by some of the actions by certain companies in London over 2012: LinkedIn, Skype, Warner Bros, all of whom have either taken new offices or renewed the leases on their current premises.  Internet-based businesses such as LinkedIn can, in the space of a typical 5-year lease, outgrow their office space astronomically. Five years is standard in lease terms, but can be a long time in terms of the technology and media sectors.