I've met many decent people who work at ThoughtWorks, so it pains me to say this, but based off the interactions I've had with the organization professionally I've started to ask in interviews if the company does any work with TW (and a couple other firms, Pivotal has a poor track record as well). If so, the conversation usually ends there unless it's followed by a qualifier where the interviewer understands my reticence. I've been at two companies where TW involvement torpedoed projects, the culture, and even a sound business model. Not again.