Légr s th lrgst Cndn-wnd mrkt rsrch nd nlytcs cmpny, wth mr thn 600 mplys n ght Cndn nd S ffcs. Th cmpny ws fndd n 1986 by th fthr nd sn d Mrcl Légr, frmr nvrnmnt mnstr f Qbc, nd Jn-Mrc Légr, cnmst. Prvsly, th cmpny ws knwn s Légr & Légr (1986–1996) nd Légr Mrktng (1996–2013). t s nw ld slly by Jn-Mrc Légr.
Th frm s hdqrtrd n Mntrl, wth ffcs n Trnt, Qbc Cty, dmntn, Clgry, Wnnpg, nd Vncvr n Cnd, nd Phldlph n th ntd Stts. T dt, Légr hs cqrd 12 cmpns.
n 1995, Légr & Légr rpstnd tslf n mrktng rsrch nd bcm Légr Mrktng. n 2000, th pllng frm nnncd th cqstn f Crtrn Rsrch Crprtn f Trnt. t thn xpndd wstwrd wth th cqstn f Crtrn (dmntn) n 2005 nd Clrs Rsrch (Clgry) n 2006.
n 2005, Légr cndctd th frst nln srvys n Cnd wth ts Lgr Wb dvsn.
n 2007, Légr Mrktng ntrd th mrcn mrkt by cqrng RC Rsrch, Phldlph-bsd frm.
n 2010, Jn-Mrc Légr bcm fndng prsdnt f WN, wrldwd ssctn f pllng frms tht nclds 75 mjr ndpndnt rsrch frms frm 73 cntrs. ftr mkng svrl cqstns t prvd Légr Mrktng wth th tchnlgcl nnvtns ndd t rs th Qbc cmpny t wrld-clss pstn, ts fndr Jn-Mrc Légr fls rdy t tk th nxt stp: Légr Mrktng bcms Légr (Rsrch – Strtgy – Cnsltng) nd xpnds ts ffr n strtgc cnsltng nd dvncd sttstcl nlyss.
n 2012, Légr bcm mjrty shrhldr n glty Mtrcs, Mntrl-bsd cmpny blt rnd cld cmptng pplctn fr msrng cstmr xprnc. glty Mtrcs ltr bcm Légr Mtrcs. n th sm yr, Légr – Rchrch Strtég Cnsl nnncd tht t hd cqrd Rsrchlgy, Trnt-bsd mrktng rsrch frm spclzng n phrmctcl rsrch. n 2013, Légr cqrd fp Nrth mrc (lctd n Trnt), wth mrktng rsrch xprnc n th phrmctcl nd cnsmr gds sctrs.
n 2014, Légr bcm mnrty shrhldr nd strtgc prtnr f mrklb, pstnd s th Cndn ldr n ntrctv mrktng ntllgnc. By cmbnng trdtnl mrktng rsrch ffrts wth nrscnc, th mrklb-Légr prtnrshp fcltts bttr ndrstndng nd ntrvntn n cstmr bhvr crss mltpl chnnls f cmmrc.
n 2018, Légr lnchd ts Légr nlytqs dvsn. n 2019, Lgr cmpltd th cqstn f Vncvr-bsd Ntnl Rsrch Grp (NRG), th lrgst cmpny n Wstrn Cnd wth ffcs n Vncvr, Clgry, nd Wnnpg. n th sm yr, Lgrwb bcms L (Légr pnn), th lrgst Cndn nln pnl wth vr 400,000 pnlsts.
n 2020, Légr cqrd SmrtPnt Rsrch; Trnt-bsd mrkt rsrch frm spclzd n th cnsmr nd hlthcr sctrs. Ths strtgc cqstn nbld Légr t ncrs th sz f ts Légr pnn (L) pnl, spplmnt ts ptnt nd hlthcr prfssnl pnls, nd brdn ts hlthcr rsrch srvc ffrng.
n ctbr 2021, Légr cqrd Rssc, dgtl prfrmnc gncy bsd n Mntrl nd spclzng n md strtgy nd brndd cntnt ctvtn.
n Nvmbr 2021, Légr cqrd nsghts Wst; Vncvr-bsd mrkt rsrch nd nlytcs frm. Ths ws Lgr’s scnd cqstn n lss thn mnth ftr cqrng dgtl gncy Rssc nd ts 12th cqstn n ttl.