Lee Brown, Peter Hamilton and Lucas Brown of Tune
Lee Brown, Peter Hamilton and Lucas Brown of Tune

Seattle mobile marketing startup Tune just finished quite a year, topping 250 employees and doubling revenue to more than $40 million.

The company, formerly known as HasOffers, also is growing through acquisitions. In a letter posted on the company’s blog, Tune CEO Peter Hamilton noted that it made two acquisitions in 2014, though he did not disclose who they bought or what the companies do. He writes:

“I have to mention that TUNE brought on two more teams that we did not announce publicly, but you’ve done an equally outstanding job connecting with them quickly and setting them on a fast path to providing more for TUNE customers. One is already supporting the future of MAT reporting and the second is set for BETA this quarter! With these and still more development, you are building something mobile marketers are really going to love.”

Tune purchased Seattle startup MobileDevHQ in August 2014, and Hamilton writes in his letter that 2015 will a year of “massive execution.”

Founded in 2009 by twin brothers Lucas and Lee Brown, the mobile analytics startup was bootstrapped during its first few years, before taking on a $9.4 million investment in 2013 from Accel Partners.

In a similar arena, San Francisco-based Mixpanel just last month raised $65 million at an $865 million valuation from Andreessen Horowitz.

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