Perhaps the recruiters are focussed on tighter geographical markets than the whole U.S.In the UK, recruiters can just have one London office and claim to be national because:a) 99% of the consultancies are based in the South Eastb) it's possible to get to London and back in a day for most candidatesc) the UK is regulated as one labour market so a firm doesn't have to worry about customising its processes for each assignmentI don't believe the same factors hold true in the US. You may have more luck searching for New York executive search firms, or Bay Area firms, etc.