industries type private industry diversified electronics founded 1995 headquarters palo alto california united states key people o. joe caldarelli ceo products vacuum tubes and microwave devices services vacuum tube repair revenue 340 million fy2006 number of employees 1 500 1 website http www.cpii.com cpi international inc. is the holding company for communications & power industries the largest citation needed manufacturer and rebuilder of electron devices primarily vacuum tubes in the united states . cpi was founded in 1995 2 when varian associates sold its electron device business the original business of its founders to concentrate on medical systems . its major subsidiaries include eimac which manufactures new vacuum tubes for the broadcasting radar medical systems and other applications econco a vacuum tube rebuilder beverly microwave systems and radant technologies . cpi international made its initial public offering in april 2006 . 3 cpi s econco division remanufactures eimac and machlett power tubes . in february 2011 an affiliate of veritas capital a private equity investment firm which invests in companies that provide critical products and services to governments worldwide acquired cpi for approximately 525 million . cpi international ceased trading on the nasdaq stock market . in fiscal 2013 cpi employed approximately 1 670 people and generated approximately 420 million in sales . citation needed references edit company profile for cpi international inc cpii . retrieved 2008 10 22 . sec info varian medical systems inc 8 k for 8 11 95 . www.secinfo.com . retrieved 2015 12 07 . cpi international . company information history . retrieved 2007 05 26 . external links edit corporate web site this united states manufacturing company related article is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title cpi international & oldid 740917651 categories companies based in palo alto californiaholding companies established in 1995united states manufacturing company stubshidden categories pages using infobox company with unsupported parametersall articles with unsourced statementsarticles with unsourced statements from august 2007articles with unsourced statements from october 2012all 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 24 september 2016 at 04 48 . 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