pilot service?

Answer 1

1. It's a service provided to guide large vessels into port. Wikipedia explains it well, and has links to various pilot services around the world.
http://en.wikipedia.org/wiki/Pilot_%28harbour%29

2. Here are some examples not included in the wikipedia list...
a) Sydney Pilot Service (Sydney, Australia)
http://www.sydneypilotservice.com/
b) Humber Pilotage Service (River Humber, England)
http://www.humber.com/pilot-pec/index.asp
http://www.dft.gov.uk/pgr/shippingports/ports/thenewhumberpilotageservice
c) Panama Pilot Services (Manzanillo Bay, Colon, Panama)
http://www.panamapilot.com/index2.html