Quintessentially
www.quintessentially.com
This luxury concierge service has an extensive travel arm that has organized expeditions to the North Pole, plus coast-to-coast crossings of the Arctic zone.

Abercrombie & Kent
www.abercrombiekent.com
Three weeks in South America ($45,000 per person) or traveling the world ($70,000 per person), via private jet, anyone? With a newly introduced slew of private-jet itineraries, A&K proves that, after almost 50 years, it’s still at the top of the luxury-travel heap.

Andavo Independent Elite
www.andavotravel.com
Darlene Ravin organizes customized trips, putting clients in luxurious tents on the banks of the Mekong River in Thailand or, during high season, in hard-to-get villas in Punta del Este, Uruguay.

Bluefish
www.thebluefish.com
Bluefish offers insider access—last-minute party or awards-ceremony invites, and high-profile introductions—to its clients, many of whom are traveling for work or networking rather than simply enjoying leisure time.

Jack Bloch
jackb@jbsworld.com
Bloch, whose travel-agent experience spans 30 years, specializes in the Caribbean and Europe and caters to savvy executives who like to private-jet tour-hop through exotic locales.

Butterfield & Robinson
www.butterfield.com
Butterfield & Robinson offers luxury biking and walking trips to 59 destinations for the active vacationer. Among the offerings is a monthlong hiking and photography trip in South America, originally planned for a former tech tycoon.

Cox & Kings
www.coxandkingsusa.com
Hedge fund honchos, lawyers, and celebrities travel to India, Africa, and Latin America with Cox & Kings, a U.K.-based tour operator that specializes in sojourns for well-heeled clients. These travelers expect extraordinary care and firsthand knowledge of destinations, and Cox & Kings delivers.

Exeter International
www.exeterinternational.com
Exeter organizes private, behind-the-scenes trips to Eastern Europe and Russia for executive teams, including an excursion for the top execs of J.P.Morgan Chase.