Their website suggests so.
I've heard no updates from them since 2014, I emailed them about a single-speed CX bike and still have no response.
Then I guess not. Either that or they don't want you to have one of their bikes, that seems like a bad business plan to me. edit: fb page not updated since 2014, so my guess is they no longer exist.
@Spinn started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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Their website suggests so.