GIMV, a Belgian investment firm, has announced a 49 percent stake in the shares of Strata Partners, operator of the Orange Fitness and City Fitness chains in Russia, marking the first time that an investor outside of the country has taken share in an established Russian fitness company. Strata has the ambition to open 60 additional fitness clubs in Russia by 2010, with GIMV taking over part of the $60 million investment. GMIV is represented in Russia by Eagle Venture Partners and was founded in 1980 in Belgium.