About

The AJ100 is the definitive annual record of the UK’s largest architecture practices, measured by the number of architects employed in the UK. To be in with a chance of making the AJ100, practices must complete the 2025 AJ100 survey.

After the AJ100 list has been announced, judges will decide the winners of the various AJ100 Awards categories. A Gala Lunch will take place to announce these winners on Friday 20 June, 2025 at the Honourable Artillery Company in London.

Once a practice becomes part of the AJ100, they’ll have the opportunity to attend four exclusive AJ100 Club events throughout the year. These could be lunches or more informal networking, but all will include keynote speakers.