Washington Harbour Partners LP | 1,925 followers on LinkedIn. Washington Harbour employs a fundamentally driven strategy with an emphasis on small- and mid-cap investments. | Washington Harbour Partners LP is an investment firm that deploys capital in the U.S. Washington Harbour Partners seeks to earn superior risk-adjusted returns for its investors over the long term. The firm’s fundamentally oriented investments focus primarily on the technology, media, communications, fintech, and business services sectors.