ad serving founded 2007 headquarters new york city new york united states key people brian o kelley ceo michael rubenstein president jonathan hsu cfo coo products infrastructure as a service ad serving number of employees 1000 website www.appnexus.com appnexus is a global technology company whose cloud based software platform enables and optimizes programmatic online advertising . 1 as of 2015 appnexus servers process up to 45 billion ad buys per day at peak ; appnexus handled an estimated 2 billion in ad spending in 2014 citation needed giving it the biggest reach on the open web after google . 2 citation needed headquartered in new york the company has 23 offices in north america latin america europe asia and australia . appnexus offers online auction infrastructure and technology for data management optimization financial clearing and support for directly negotiated advertising campaigns . it integrates with advertising sources including google s doubleclick microsoft s adecn engage bdr and other aggregators . 3 4 it operates out of multiple data centers including one in amsterdam serving europe and the middle east in a facility shared with equinix . 5 founders and financing edit appnexus was founded by brian o kelley the ex cto of right media and mike nolet former product manager and director of analytics at right media ; 6 michael rubenstein a former vp and general manager at google s doubleclick joined appnexus as president in september 2009 . 7 the company is financially backed by microsoft khosla ventures first round capital venrock 8 kodiak venture partners marc andreessen ben horowitz and ron conway ; as of 2015 the company has raised 250 million in financing . references edit stephanie clifford 2010 03 12 . instant ads set the pace on the web . the new york times . archived from the original on 17 march 2010 . retrieved 2010 03 12 . alex conrad 2013 08 04 . how appnexus ceo became the king of ad tech . forbes.com . retrieved 2013 08 04 . appnexus 2010 03 12 . appnexus officially launches ad platform fueling the real time bidding revolution in display advertising . press release press release . pr newswire . archived from the original on 22 march 2010 . retrieved 2010 03 12 . appnexus expands video buying adds new video demand partners . www.mediapost.com . retrieved 2016 05 22 . liz gannes 2010 10 05 . appnexus raises 50m for real time ad platform tech news and analysis . gigaom.com . retrieved 2011 05 11 . who we are . appnexus . archived from the original on 17 may 2011 . retrieved 2011 05 11 . 1 archived december 12 2010 at the wayback machine . appnexus secures 8 million in series b funding . pr inside.com . retrieved 2011 05 11 . external links edit appnexus this united states corporation or company article is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title appnexus & oldid 740394758 categories online auction websitesinternet companies of the united statesinternet advertising services and affiliate networkscompanies based in new york cityunited states company stubshidden categories articles with wayback machine linksall articles with unsourced statementsarticles with unsourced statements from october 2015all stub articles 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 20 september 2016 at 20 10 . 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