3K Limited Partnership is a private family investment office that focuses on making control investments as well as minority investments as part of a control investor group in privately held businesses. The firm seeks to invest in the specialty manufacturing, business services, specialty distribution, industrial and infrastructure services, information technology services, technology and software, consumer products and services sectors. It was founded in 2012 and has offices in Massachusetts and Connecticut. 3K's capital is entirely internal, permanently funded, very patient, and allows for a very long investment holding period.