Stingray Digital Group Inc. and Birch Hill Equity Partners ramped up their lobbying in December, with both submitting their first communications reports for the year in the last weeks of 2017. Birch Hill, an investment firm whose partners include Groupe Maskatel LP, which was acquired this month by BCE Inc., saw its first lobby activity in a year and a half, filing five communications reports with officials at Innovation, Science and Economic Development Canada (ISED). Representatives reached out to with Parvinder Sachdeva, policy advisor at Innovation Minister Navdeep Bains’ office, as...