HOUSTON--(BUSINESS WIRE)--NRC Group Holdings Corp. (NYSE American: NRCG) ("NRCG" or the "Company"), a global provider of a wide range of environmental, compliance and waste management services, has been invited to present at the Stifel 2019 Cross Sector Insight Conference on Wednesday, June 12, 2019, at the InterContinential Boston in Boston, Massachusetts. NRCG's presentation will be at 11:30 a.m. Eastern time, and will include CEO Chris Swinbank and CFO Joe Peterson. They will also be holding