w.a. jennings headquarters des moines iowa united states area served north america south america europe asia products formwork engineering website www.efcoforms.com efco is a civil company based in des moines iowa . it was founded in 1934 and is today one of the leading providers of concrete formwork systems in the united states and the world . efco has an extensive subsidiary network in north america south america asia and europe . contents 1 history 2 product overview 3 notable projects 4 see also 5 references 6 external links history edit this section is empty . you can help by adding to it . august 2016 product overview edit the product range includes handset radius and heavy duty formwork girders column formwork various shoring systems a variety of slab formwork systems aluminum posts jump systems self climbing systems tie systems services software and training . notable projects edit wilshiregrand tower los angeles california world trade center tower one new york new york cosmopolitan of las vegas east tower project citycenter citycenter casino & resort trump tower las vegas nv usa san diego convention center san diego ca usa prado dam corona ca usa o hare international airport chicago il usa indianapolis colts indianapolis in usa estadio nacional de panam panama national stadium panama city panama eastlands stadium manchester england see also edit formwork climbing formwork references edit efco history notable projects external links edit efco official site retrieved from https en.wikipedia.org w index.php title efco & oldid 733206600 categories construction and civil engineering companies of the united statescompanies based in des moines iowahidden categories articles to be expanded from august 2016all articles to be expandedarticles with empty sections from august 2016all articles with empty sectionsarticles using small message boxes 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 6 august 2016 at 05 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