The Haven Group, Inc. On December 30, 2005, Wind River Holdings acquired The Haven Group, Inc., a leading custom and semi-custom home builder. Operating under the Haven Custom Homes™ brand, the company is a leader in the innovative application of modular construction techniques to custom home building. Haven Custom Homes offers true custom construction from independent architect designs or their own suites of homes commissioned from leading regional architects. The use of climate controlled construction assures that sensitive interior spaces of the home will not be exposed to the wind, rain and mud of a conventional home site. The result is a finished home that meets the quality standards that custom home builders deserve. Haven’s executive offices are located at 1302 Concourse Dr., Suite 202, Linthicum, MD 21090.