contact name: Zia Hayat
contact job function details: founder ceo
contact job function: entrepreneurship
contact job title: CEO & Founder
contact job seniority: founder
contact person city: Othery
contact person state: England
contact person country: United Kingdom
contact person zip code: TA7
business name: Callsign
business domain: callsign.com
business facebook URL: https://www.facebook.com/CallsignHQ
business linkedin: http://www.linkedin.com/company/2380010
business twitter: https://twitter.com/Callsign
business website: http://www.callsign.com
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business angellist: http://angel.co/callsign-1
business found year: 2011
business city: London
business zip code:
business state: England
business country: United Kingdom
business language: English
business employee: 86
business category: computer & network security
business specialty: computer & network security
business technology: route_53,sparkpost,gmail,google_apps,amazon_aws,hubspot,vimeo,mobile_friendly,google_universal_analytics,itunes,google_play,google_analytics,campaignmonitor
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business description: Callsign enables enterprises protection from threats by verifying users through their smartphone utilizing deep learning and strong authentication.