Fitbit, the fitness tracking device maker that filed for a $100M initial public offering on May 7, relies on Olson for PR support.

fitbitSan Francisco-based Fitbit helped bring so-called "wearable" technology into the mainstream with its "smart" scales and watch-like devices that track users' physical activity and meals. The company has spawned an industry and numerous competitors in selling nearly 21M devices.

Fitbit said this week that it plans an IPO on the New York Stock Exchange under the ticker symbol "FIT." It plans to use the proceeds for working capital and other general corporate purposes, including research and development, sales and marketing activities, and capital expenditures, among other plans.

Tim Rosa is VP of global marketing. Olson's San Francisco office handles Fitbit.

Fitbit claims revenue of $745.4M in 2014 with net income of $131.8M, an exponential rise from 2011 revenue of $14.5M and a net loss of $4.3M. It sees a market for wearable devices of 114M units by 2018, a potential market of $33.7M.

In a PR coup for the company, President Obama was photographed in March wearing a Fitbit device.