inc. type subsidiary industry financial services founded 1999 headquarters san francisco california key people thom weisel chairman and ceo parent stifel financial slogan experts in growth website www.tweisel.com thomas weisel partners group inc. also known as twp or weisel is a u.s. growth focused investment banking firm based in san francisco california . the firm was launched in january 1999 by thom weisel and other personnel from the former montgomery securities . in 1997 thom weisel helped to orchestrate a 1.3 billion acquisition of montgomery securities by nationsbank . 1 the following year however nationsbank acquired bankamerica corp which itself had acquired technology based rival robertson stephens . a culture clash and fight for control ensued at the newly combined investment banking units of what is now known as banc of america securities . 1 in the process senior bankers from montgomery securities secured backing from the silicon valley venture capital community and left to form their own venture thomas weisel partners . 1 thomas weisel partners heavily focused on technology prospered during the dot com rise that peaked in its early years . the firm however hit turbulent times as technology saw a tremendous downturn . bolstered by diversification into areas such as healthcare and consumer products however the firm survived and continued to operate independently . in search of additional capital the firm made its debut on the nasdaq on february 2 2006 under the symbol twpg . 2 following its acquisition of westwind partners that closed on january 2 2008 3 the firm now offers a broad coverage platform across technology media healthcare consumer products energy mining and real estate . 4 5 equity and debt underwriting and merger and acquisition advisory operations are supplemented by research trading brokerage and asset management units as the firm operates a full service investment bank . 4 5 various divisions operate out of san francisco new york toronto london baltimore zurich calgary montreal boston chicago cleveland denver and portland . 4 5 in 2010 thomas weisel announced its acquisition by stifel financial . references edit a b c 1 . brandt richard . capital instincts . isbn 0 471 21417 5 2 . cbs market watch . thomas weisel ipo up 30 % in debut . 02 02 2006 3 . cnn . thomas weisel partners completes acquisition of westwind partners announces appointment of westwind ceo as president of twp and selected preliminary fourth quarter 2007 results . 01 02 2008 a b c 4 . thomas weisel partners . retrieved 01 16 2008 a b c 5 . thomas weisel partners canada . retrieved 01 16 2008 retrieved from https en.wikipedia.org w index.php title thomas weisel partners & oldid 694695203 categories investment banks navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 10 december 2015 at 22 51 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view