Aquiline Capital Partners, a New York and London-based private equity firm, completed the investment in Elm Street Technology, a real estate technology and marketing solutions provider to the residential real estate industry. Financial terms were not disclosed. "Aquiline is the perfect partner to help Elm Street Technology accelerate its growth strategy. With Aquiline, we will be able to broaden and accelerate our sales and marketing capabilities, enhance product development and increase our focus on strategic acquisitions that will allow us to better service the increasing demand for technology to automate and streamline the day-to-day activities of the busy real estate professional," Prem Luthra, Elm Street Technology President and CEO.