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TeleSign New Logo.png
Type Private
Founded 2005
Headquarters Marina del Rey, USA
Key people Steve Jillings CEO, Charles McColgan, CTO, Ryan Disraeli (Co-founder), Stacy Stubblefield (Co-founder), Darren Berkovitz (co-founder), Stephen Bolinger (Chief privacy officer)
Industry Internet Security

TeleSign Corporation is an internet security company based in Los Angeles, California. Founded in 2005 by Darren Berkovitz, Ryan Disraeli and Stacy Stubblefield, the company mainly provides Two-factor authentication services, a secure supplementary method of preventing illicit access to online accounts used by many companies like iTunes, Yahoo, Gmail, Outlook, Twitter, Facebook, Bank of America, Chase, Discover,PayPal, Etsy, and more.[1] [2] Steve Jillings is the current CEO of the company.[3][4]

TeleSign offers cloud-based APIs and SDKs that help prevent registration fraud, reduce the risk of account takeover and securely authenticate end-users across their account lifecycle. Its PhoneID Score service analyzes phone data such phone number, device model number, telecom operator and type of SIM connection and result a score between 0 and 1000, with 0 best and 1000 worst.[5][6][7]


  1. ^ J. J. Colao (29 April 2014). "With Another $40 Million In Funding, TeleSign Looks To Dominate 2-Step Verification". Forbes. Retrieved 2 February 2015. 
  2. ^ Ira Wilkser (8 October 2015). "Secure your online accounts with two factor authentication". The Examiner. Retrieved 8 October 2015. 
  3. ^ Knowtechie (18 December 2014). "Meet the man behind the future of mobile identity". United Press International. Retrieved 2 February 2015. 
  4. ^ Jonathan Shieber (3 July 2014). "After Closing $49 Million In Funding, TeleSign Pushing Authentication Services". Tech Crunch. Retrieved 2 February 2015. 
  5. ^ Kashmir Hill (13 November 2013). "Your Phone Number Is Going To Get A Reputation Score". Forbes. Retrieved 2 February 2015. 
  6. ^ Liam Tung (7 July 2014). "Why Telstra is backing TeleSign". The Age. Retrieved 2 February 2015. 
  7. ^ Jim Edwards (18 November 2013). "This Company Ranks Your Phone Number's 'Reputation' - And Might Block You If It's Lousy". Business Insider. Retrieved 2 February 2015.