What London DMCs should prove
Named theatre sections and face-value policies; Blue Badge guide pools for Tower and museum depth; Elizabeth line versus Heathrow Express aligned to first-night energy.
Group programs need single-invoice responsibility across port transfers, city coaching, and Windsor or Cotswolds extensions with honest drive times.
London DMC vs UK-wide operator
Capital-heavy MICE and incentive weeks benefit from London-based incoming teams. Scotland or Cotswolds extensions need disclosed regional partners—not opaque subcontractors.