London-specific (and from a recruiter that is listing some of their own clients, so take with a grain of salt), from https://www.quora.com/What-are-the-best-sof

London-specific (and from a recruiter that is listing some of their own clients, so take with a grain of salt), from https://www.quora.com/What-are-the-best-software-engineering-companies-to-work-for-in-London https://www.quora.com/What-are-the-best-software-engineering... (2014): Large tech firms: ================ Google, Deepmind Facebook Twitter Microsoft, Skype, Yammer Palantir Technologies Bloomberg Start-ups ========= Improbable.io Swifkey Hailo VisualDNA Editd State Opengamma Duedil …and plenty more good ones in stealth. Gaming: ====== Mind Candy EA Games (Playfish) Playfire Foundry …and the list can go on forever. Not software engineering firms, but have plenty to offer software engineers: Investment banks: ================ Morgan Stanley Goldman Sachs JP Morgan Barcap ....and plenty more. Tech-driven funds: ================= Man AHL G-Research KCG (Getco, Knight, Automat) …any plenty more you've probably never heard of.