Private tours
Your own guide, your own pace, priced per group rather than per person on most listings.
Prices run from $49 to $1200, and half of the 40 priced listings cost $372 or less. Most take 2 hours to 6 hours. The best reviewed with at least 100 reviews is San Francisco: Silicon Valley Private Tour with Hotel Pickup (4.8 from 239 reviews).
For the operators we researched and recommend, see our food tours and cooking classes in San Francisco, or the experiences overview.