Kayak, SideStep Will Travel Together in Rare East-Buys-West Acquisition

In one of the largest venture-backed deals of the year, discount travel search site Kayak.com, based in Norwalk, CT, has raised $196 million to purchase rival SideStep of Santa Clara, CA. While the two companies’ websites will continue to operate separately, according to a press release issued today, the combined organization will control the Web’s fifth most popular travel brand, with “more monthly unique visitors than Priceline, every airline except Southwest, and every hotel and rental car brand,” according to Kayak.

A gaggle of investors and bankers from both coasts contributed to the deal, including existing Kayak funders Accel Partners, Cambridge’s General Catalyst Partners, and Sequoia Capital; existing SideStep investors Norwest Venture Partners and Trident Capital; new investors Lehman Brothers Venture Partners and Oak Investment Partners; and lenders Gold Hill Capital and Silicon Valley Bank. Sequoia’s Michael Moritz will join the Kayak board of directors.

Kayak’s search engine combs hundreds of travel sites for the best prices on flights, hotels, rental cars, and cruises. The company earns money when consumers click on the ads displayed alongside search results, which bring a high rate because Web users researching travel plans are considered to be highly qualified, goal-directed sales leads. SideStep searches fewer sites but provides user-contributed reviews of thousands of companies and destinations. The overlap between the two companies’ user bases is less than 10 percent, according to Steve Hafner, Kayak’s CEO and co-founder.

“The commercial logic of this deal is obvious,” Hafner said in a statement announcing the deal. “Kayak.com is a technology company focused on perfecting travel search, and SideStep.com is a media company with in-house sales expertise and user-generated content. By merging, each brand can improve its offering while continuing to focus on its individual strengths.”

Kayak co-founder and CTO Paul English added: “As a native Bostonian, I am also personally gratified to finally see an East Coast technology firm purchasing a West Coast counterpart.”

Author: Wade Roush

Between 2007 and 2014, I was a staff editor for Xconomy in Boston and San Francisco. Since 2008 I've been writing a weekly opinion/review column called VOX: The Voice of Xperience. (From 2008 to 2013 the column was known as World Wide Wade.) I've been writing about science and technology professionally since 1994. Before joining Xconomy in 2007, I was a staff member at MIT’s Technology Review from 2001 to 2006, serving as senior editor, San Francisco bureau chief, and executive editor of TechnologyReview.com. Before that, I was the Boston bureau reporter for Science, managing editor of supercomputing publications at NASA Ames Research Center, and Web editor at e-book pioneer NuvoMedia. I have a B.A. in the history of science from Harvard College and a PhD in the history and social study of science and technology from MIT. I've published articles in Science, Technology Review, IEEE Spectrum, Encyclopaedia Brittanica, Technology and Culture, Alaska Airlines Magazine, and World Business, and I've been a guest of NPR, CNN, CNBC, NECN, WGBH and the PBS NewsHour. I'm a frequent conference participant and enjoy opportunities to moderate panel discussions and on-stage chats. My personal site: waderoush.com My social media coordinates: Twitter: @wroush Facebook: facebook.com/wade.roush LinkedIn: linkedin.com/in/waderoush Google+ : google.com/+WadeRoush YouTube: youtube.com/wroush1967 Flickr: flickr.com/photos/wroush/ Pinterest: pinterest.com/waderoush/