TSL Education
The largest network of teachers in the world

TSL is an extraordinary story, encompassing one of the fastest-growing, digital communities of any profession globally, as well as a 100 year old print heritage. Today, with over 2.6 million registered online users in over 274 countries and territories, it is the largest online network of teachers in the world. It is now a privately-owned, PE-backed company.

We believe that investment in our products and in the teacher community makes good business sense as well as being critical to the future of the education system and to those who work tirelessly to educate children and students all over the world. Spanning the full range of education from Primary to Higher, the company has grown and changed hugely since it was born in 1910 as a simple supplement to a national daily newspaper.


  • 2014
  • 2013
  • TSL launches TES Australia (www.tesaustralia.com) in partnership with the New South Wales Board of Studies, the Australian Education Union and the Centre for Professional Learning

  • TPG Capital LLP acquires TSL Education
  • 2012
  • The American Federation of Teachers (AFT) and TSL launches Share My Lesson www.sharemylesson.com
  • TSL launches TES India www.tesindia.com
  • TES Connect's resource bank passes landmark of 500,000
  • 2011
  • The TES resource bank becomes the largest online network of teachers in the world
  • TES relaunches as a glossy magazine with a professional CPD supplement
  • TES Scotland (TESS) relaunches as a glossy magazine
  • 2010
  • TSL acquires BrightSpark online tutoring
  • TSL acquires iBoard and EnglishResouces.com to help develop the online resource bank
  • 2009
  • TSL launches HireWire, a free digital recruitment tool for schools
  • 2008
  • TSL Education acquires Education Data Surveys (EDS)
  • Times Higher Education Supplement relaunches as a glossy magazine called the THE
  • 2007
  • Charterhouse Capital Partners acquires TSL Education
  • 2006
  • TES Scotland (TESS) spins out as a stand alone weekly Scottish publication
  • TES paper redesigned and with a new magazine
  • The TES Connect website is launched with a new platform for teachers to share resources
  • 2005
  • Exponent acquires TSL Education from News International
  • 1999
  • Times Supplements Ltd changes its name to TSL Education Ltd
  • 1989
  • Times Supplements Ltd is created to run the two educational titles and the TLS
  • 1981
  • News Corporation buys Times Newspapers Ltd
  • 1971
  • The Times Higher Education (THE) is launched by The Thomson Organisation, owner of The Times
  • 1914
  • TLS and TES became stand-alone titles published weekly for the price of 1p.
  • 1910
  • The Times Educational Supplement (TES) first published
  • 1902
  • The Times Literary Supplement (TLS) is launched as a free insert in The Times newspaper