investments news contact us charterhouse equity partners llc charterhouse is one of the industry s most experienced middle market private equity firms having invested in over 100 platform companies and hundreds of add on acquisitions over the past four decades . charterhouse develops partnerships with entrepreneurial management teams to acquire controlling interests or provide growth capital to middle market companies . the information on these pages is intended solely for the benefit of persons who might be aware of investment opportunities that would interest charterhouse . charterhouse s services are provided only to a limited number of private investment funds ; charterhouse does not make its services available to the public . 2012 charterhouse equity partners llc .