Methodology | Evening Standard Tech Rich List

The rich list is calculated using a model involving an analysis of stocks, privately owned companies, property and cash.

Stock prices and publicly disclosed shareholdings are used to calculate the value of individual stakes in listed businesses.

The value of private companies is calculated using reported financial information and a comparison with publicly listed peers, using revenue and/or EBITDA multiples. In addition, an analysis of venture capital funding rounds may be used, with shareholding estimates based on discussions with a range of senior industry insiders where they are not publicly disclosed.

The value of property and real estate is adjusted from the date of any known purchase using the Halifax House Price Index.

Publicly reported salaries, bonuses and share sales are included in the calculation. The analysis assumes any cash earned is invested into a blend of stocks, exchange-traded funds and precious metals.