Purlin Co. (www.purlin.com) announced raising an equity round with key financial and strategic investors, including SUM Ventures, New Valley Ventures, an investment vehicle managed by Douglas Elliman (NYSE: DOUG), Redwood Trust Inc. (NYSE: RWT), through its strategic venture investment platform, RWT Horizons, Mission Gate, and Fredrik Eklund and Julia Spillman-Gover, of The Eklund | Gomes Team at Douglas Elliman Real Estate.