The Portsmouth Grammar School

Analysis

The Portsmouth Grammar School is a registered charity in England and Wales, based in Portsmouth. It was registered in July 1997, 29 years ago. Its declared purposes cover education/training, which this site groups under education and training. Legally it is a charitable company (Companies House number 03401010). It says it provides services.

In the financial year ending August 2025, The Portsmouth Grammar School reported income of £20.2m and spending of £21.3m, spending 105% of what it took in. Across the 5 years on record, from August 2021 to August 2025, income grew from £19.3m to £20.2m (+4.9%), an average of +1.2% a year. Over the whole period it spent 101% of the income it received.

Among 21,402 England and Wales charities whose main cause is education and training and that reported income, The Portsmouth Grammar School sits at the 99th percentile: it is one of the largest 1% in its cause. Against every charity in England and Wales with reported income it ranks in the 99th percentile. Charities of a similar size with the same main cause include Corpus Christi College Oxford (£20.2m), The Abbey School, Reading (£20.3m) and The Royal Institute of International Affairs (£20.2m).

In its latest detailed accounts, income came from charitable activities 92%, donations and legacies 4.7%, investments 2.3% and trading 1.2%. Gifts in wills alone brought in £405k. Charitable activities took 97% of spending and raising funds 3.1%. Reserves of £304k would cover about 0 months of spending at that rate. It employed 319 people.