Who are the emerging giants in technology? Business Insider just released its annual ranking of the top 100 private tech companies, and three names known to Seattleites make the list.

Daily deal site Zulily, which raised a $43 million VC round at a valuation of about $750 million last year, ranked 36th on the list. Business Insider placed the value of Zulily at about $600 million, down from $700 million and the 31st place in last year’s ranking. (Interestingly, just two slots behind Living Social).

That was followed by Seattle online real estate brokerage Redfin, which ranked 38th with an estimated value of $550 million (just below Trulia’s current public valuation), and Bellevue enterprise software company Apptio, which ranked 61st with an estimated value of $350 million. T. Rowe Price led a $50 million round in Apptio in March, one of the biggest venture capital deals in the region in the past five years.

No other Seattle area companies made the list, and from what I could tell no Portland companies (Survey Monkey is listed as based in Foster City, California) cracked the top 100. A few potential absences from the Pacific Northwest: INRIX, Tableau, DocuSign and Donuts. (The Wall Street Journal just named DocuSign, Donuts and Cheezburger to its list of the top 50 startups).

The top five companies on Business Insider’s list — Alibaba, Bloomberg, Twitter, 360Buy and Palantir — all had estimated valuations above $3 billion.

Of course, ranking private companies on valuations is more art than science, since most of the values aren’t readily available. (One of the reasons the companies are called private). Business Insider said they ranked the companies on a number of factors, including “revenue, users, market opportunities, growth rates, and the perception of investors and tech gurus.” In many cases, the ranking is based on public comparables, many companies which have lost value in the public markets.

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