as lse spt otc pink spmyy industry telecommunications founded 1936 headquarters crawley west sussex united kingdom corporate san jose california united states operational key people alex walker chairman of the board eric hutchinson ceo rachel whiting cfo products network diagnostics revenue us 477.1 million 2015 1 operating income us 10.1 million 2015 1 profit us 13.5 million 2015 1 total assets us 592.0 million 2015 1 number of employees 1 700 2015 2 website www.spirent.com spirent communications plc is a multinational telecommunications testing company headquartered in crawley west sussex in the united kingdom . it is listed on the london stock exchange . contents 1 history 2 operations 3 references 4 external links history edit the company was founded by jack bowthorpe in 1936 as goodliffe electric supplies . in 1949 it changed its name to bowthorpe . it acquired optima electronics in 1987 and disposed of its defence businesses in 1990 . the company s electronics business grew rapidly during the dot com boom of the 1990s with the 1997 purchase of businesses such as adtech a digital test equipment concern based in hawaii 3 and the company was a member of the ftse 100 index from time to time . it disposed of its automotive industry businesses in 1999 the same year that it bought netcom systems a us telecoms testing business which makes network equipment testers 4 and dls a canadian telecoms testing business . 5 in 2000 it also bought hekimian a major operations support systems business 6 zarak systems another communications software business 7 and net hopper an access systems specialist . 8 in 2000 it changed its name to spirent . the name is derived from the words inspired innovation . it acquired caw networks a santa clara company which makes network performance testing appliances including avalanche in 2002 9 scientific software engineering a united states based developer of software including landslide for testing the performance and functionality of wireless network infrastructure in 2006 10 imperfect networks a ids ips testing company in 2006 11 and fanfare software a united states based developer of the itest automation software in 2011 . 12 it went on to buy mu dynamics a sunnyvale company which makes cloud and app testing products such as blitz 13 and metrico wireless the global leader in mobile device performance analytics for wireless service providers oems and corporate enterprises based in frederick maryland in 2012 . 14 in july 2014 spirent acquired radvision s technology business unit from avaya . radvision a company based in tel aviv israel offers development and test suites for voice and vvideo over ip communications . 15 in september 2014 spirent announced that it acquired mobilethink a s and its wholly owned subsidiary tweakker aps a provider of mobile device management device analytics and intelligence solutions for mobile operators . 16 operations edit spirent communications plc is a communications and network testing company . spirent mainly consists of the former consultronics later dls testworks of ottawa ontario netcom systems of chatsworth california and later calabasas california adtech of honolulu hawaii zarak systems of sunnyvale california caw networks of san jose california hekimian of rockville maryland telecom analysis systems of eatontown new jersey in 1995 global simulation systems of paignton devon in 1997 dls of ottawa ontario in 1998 and a number of other small network test equipment providers that it has acquired such as imperfect networks of burlington massachusetts . references edit a b c d full year results for 2015 pdf . spirent . february 25 2015 . factsheet pdf . spirent . retrieved 29 may 2015 . uk business park bowthorpe ups test role with us buy electronics times 21 june 1999 bowthorpe buys dls for 11.1 m electronics times 5 july 1999 spirent buys hekimian company business and marketing january 2001 spirent acquires zarak systems light reading 11 september 2000 spirent buy is optics boost net hopper systems electronics times 23 october 2000 caw networks to be acquired by spirent spirent acquires 3g player scientific software 3g 10 july 2006 spirent communications plc announces acquisition of imperfect networks inc. marketwire 10 august 2006 spirent gets into automation game by acquiring fanfare fierce telecom 15 february 2011 apps and cloud testing specialist mu dynamics acquired by spirent in 40m deal tnw 20 april 2012 spirent to buy metrico wireless for 52m marketwatch 6 september 2012 spirent agrees to acquire radvision s technology business unit wall street journal wednesday july 2 2014 spirent swoops for danish group in 20m deal . insider media . 15 september 2014 . retrieved 24 january 2016 . external links edit official site v t e telecommunications industry in the united kingdom economy of the united kingdom science and technology in the united kingdom companies infrastructure providers arqiva babcock international bt wholesale 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