San Francisco Based Private Equity Group Looking To Purchase Hannover House (HHSE) Ventures Sierra Equity Latest Projections: San Francisco Based Private Equity Group Looking To Purchase Hannover House (HHSE) Ventures Sierra Equity. Shares of HHSE finished higher up over 8% at the end of Friday's session. More to follow.....check back as Sierra pursues her leads, look for the official news, when it breaks remember Sierra called this first!