We expect U.S.-based global provider of market opinions Survey Sampling International LLC's (SSI's) weaker-than-expected revenue growth and covenant step-downs to result in a leverage covenant margin of compliance below 5% over the next 12 months. We are lowering our ratings on the company, including the corporate credit rating to 'B-' from 'B'. The recovery ratings are unchanged. The negative rating outlook reflects our expectation that the SSI's first-lien covenant margin of compliance will remain extremely thin and the company may need to pursue an amendment to the covenant agreement to avoid a violation. CHICAGO (S&P Global Ratings) May 16, 2017--S&P Global Ratings said today that it lowered its corporate credit rating on Survey Sampling International LLC (SSI) to 'B-' from