Many Wikipedians have seen the effects that paid advocates can have on an article. These paid editors tend to make obviously biased edits, be very persistent, and are easily identifiable. But some of them are much more sophisticated. This investigation focuses on one firm that, except for two seemingly minor editing mistakes, would likely not have been identified. The firm had twelve sock puppets, which are now blocked, and worked for a charity now involved in an ethics investigation of Canadian Prime Minister Justin Trudeau. The paid editing firm has also worked on articles about Russian and Ukrainian oligarchs, and subcontracted social media work from Bell Pottinger during that firm’s disastrous PR campaign in South Africa.