- BookingCenter
 - Occidental - Offers property management software to enable hospitality and accommodation reservations online. - Fourth Dimension Software
- Redwood City - Provider of software development and services for tour operators and wholesalers, travel suppliers and retailers.
- Holly Speaks
- Mill Valley - Provides concierge training and consulting services to hotel and corporate industries.
- Menlo Consulting Group
- Palo Alto - Specialises in marketing, strategy consulting, and research for the global travel and tourism industry.
- Naturegate
- San Francisco - Consultants specialising in the assessment and planning of ecotourism accommodation and activities.
- Peninsula Visa Service
- Santa Clara
- SideStep
- Santa Clara - Search for travel deals including airline tickets, car rental services, and hotels. SideStep features a toolbar that compares prices with other online booking sites to prove they've got the best travel bargains.
- Travel Document Systems
- San Francisco
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