Piriform (company)

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Piriform Software Ltd
Private limited company
Industry Computer software
Founded London, UK (2004)
Founder Guy Saner
Headquarters One Euston Square, 40 Melton Street, London, United Kingdom, NW1 2FD[1]
Area served
Key people
Guy Saner (CEO)
Products CCleaner
CCleaner Cloud[2]
Website www.piriform.com

Piriform is a privately owned software house based in London, UK.

It develops cleaning and optimisation software for Microsoft Windows and Mac OS X operating systems, plus Android mobiles. Piriform's projects include CCleaner, Recuva, Speccy,[3][4] CCleaner Cloud[5] and Defraggler, a disk defragmentation tool. On 22 September 2015, Piriform launched CCleaner Cloud, which uses the CCleaner technology[5] to maintain PCs remotely.

Piriform means "pear-shaped". The OED lists "to go pear-shaped" as British slang for when a situation doesn't go the way you expect. [6]

Critical reception[edit]

Piriform's most popular application, CCleaner, has been downloaded over 1.5 billion times. It is one of the oldest system cleaners, first launched back in 2005. CCleaner is synonymous with system cleaning, just like Google is synonymous with search.[7]

CNET editors gave the application a rating of 5/5 stars, calling it a 'must-have tool'. It was awarded Editor's Choice Award in April 2009 by CNET.[8]

As of January 2014, it has been the most popular software on FileHippo for more than a year, and also has a 5-star editor's rating on Softpedia.[9] CCleaner has been reviewed by Chip.de,[10] TechRadar,[11] PC Magazine,[12] TechRepublic[13]


  1. ^ "Company details". Companies House. Retrieved 2010-03-29. 
  2. ^ "Piriform Blog - CCleaner Cloud has Launched!". Piriform. 2015-09-22. Retrieved 2015-09-22. 
  3. ^ "Piriform Product page". Piriform. Retrieved 2007-11-10. 
  4. ^ "Piriform company Info page". Piriform. Retrieved 2007-11-10. 
  5. ^ a b CCleaner Cloud Website
  6. ^ "From the Oxford English Dictionary: Pear-shaped". Oxford Dictionaries. OED. Archived from the original on May 4, 2010. Retrieved 25 May 2016. 
  7. ^ Nakodari. "10 Lessons Software Developers Should Learn From CCleaner's Success". Addictive Tips. Retrieved 25 May 2016. 
  8. ^ Rosenblatt, Seth (28 October 2010). "CCleaner". Download.com. CBS Interactive. Retrieved 15 May 2011. 
  9. ^ Opris, Elena (7 January 2014). "CCleaner 4 Review". Softpedia.com. Retrieved 31 January 2014. 
  10. ^ "CCleaner". chip.de. Retrieved February 21, 2016. 
  11. ^ "Download of the Day: CCleaner". techradar.com. Retrieved February 21, 2016. 
  12. ^ "CCleaner (for Mac ) Review & Rating". pcmag.com. Retrieved February 21, 2016. 
  13. ^ "Five Tips For Using CCleaner To Degunk Your System". techrepublic.com. Retrieved February 21, 2016.