There are a lot of companies in London that use PHP, and it is hard to keep track. If you know of any PHP companies with offices in the (Greater) London area (within ~20 miles), add them here with a quick pull request (you can also edit directly from within the Github website if you want).
Not in London? I'm considering a PHP-in-UK list, let me know what you think using the Github issue.
This is a local version of @awoods list for Seattle-based PHP companies.
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