Being at the top of the highest tower is akin to being on top of the world, but which companies are lucky enough to enjoy the city's best views?
One Canada Square, Canary Wharf
At one point the tallest building in London, One Canada Square stands at a height of 235 metres. The 50-storey skyscraper is bested only by the towering Shard in terms of height.
However, while the Shard houses companies only in its lower recesses, leaving the top of the building as something of a tourist attraction, One Canada Square is almost entirely populated by companies ranging from Clydesdale Bank and the Swiss Stock Exchange to Trinity Mirror.
It is Metlife insurance firm that has the prestigious title of occupying the highest office in the capital, though. The US' biggest life insurance firm moved from the two lower floors of the building in mid 2011 to give itself the heady and powerful position
Heron Tower, City of London
One office block that has not been without its worries in recent years has been Heron Tower, the brainchild of Gerald Ronson. The second-tallest office block in the capital, standing at 235 metres tall, opened in 2011 and originally sat with three-quarters of its offices totally empty.
However, in recent times, it has become a much more prestigious space. Its top floors (38 to 40) are inhabited by restaurants and bars, but 60 per cent of the office-allocated floors are now full as of April 2013.
With rental prices of somewhere in the region of £50 to £60 per square foot, relocating to the tallest building in the City of London is not cheap, but the last few months have seen firms such as stockbrokers Westhouse Securities, and Salesforce, the US software firm move into some of the more prestigious top floors of the towering structure.
8 Canada Square, Canary Wharf
An increasing number of financial companies have moved away from the traditional city districts in London in search of the slightly cheaper rental prices that can be found in Canary Wharf.
This is true for even one of the largest financial companies in the world, HSBC, which inhabits the entirety of one of the area's tallest offices - 8 Canada Square.
Standing at some 200 metres tall, and with 45 floors, it stands only slightly smaller than its Canada Square neighbour. It also holds the accolade of being the first ever UK building to sell for more than £1 billion.
HSBC has been the inhabitant of the building since 2002, using the skyscraper as its global headquarters. The company has also highlighted its green credentials through 8 Canada Square, with a number of environmentally-friendly policies being in place since the outset, including recyclable furniture and equipment.
Citigroup Centre, Canary Wharf
Completing something of a trend of financial firms looking to situate themselves in the cloud is Citigroup. The American company is one of the largest financial bodies on earth, and its EMEA headquarters in Canary Wharf certainly attest to this.
Standing toe-to-toe with HSBC, Citigroup's UK employee base is housed in a building which also stands at 200 metres and 45 storeys tall. The company pays £46.5 million per year in rent for the use of the building, which along with 8 Canada Square, is the fourth-tallest in the country.
The London office is one of the largest and most prestigious of Citigroup's 16,000 commercial spaces worldwide, and acts as the base for its operations across Europe, the Middle East and Asia.