Family offices help manage tycoons' everyday lives

Managing the life of Sergey Brin is big business.

Through Bayshore Global Management, the Google Inc co-founder has hired former bankers and philanthropy experts to help manage his $30.1 billion fortune. He's employed a former Navy Seal and SWAT team veteran for security, and a yacht captain to handle his aquatic endeavors. A fitness coordinator, a photographer and archivist help run his life.

Bayshore, based in Los Altos, California, provides a glimpse into the services family offices bestow upon the wealthy beyond investing and accounting. As the number of billionaires has surged worldwide in recent years, demand for people who can provide niche skills - and discretion - has jumped.