Guaranty Trust Bank (Rwanda) plc ni ishami rya Banki ya Guaranty Trust plc, ikigo cyimari cyambere gifite amashami 11 akorera muri Afrika yuburengerazuba, Afrika yuburasirazuba, nu Bwongereza. Muri 2013, Guaranty Trust Bank (Rwanda) plc yaguze Fina Bank Group yari imaze imyaka isaga 25 ikorera muri Kenya hamwe n’ibigo byayo mu Rwanda na Uganda. Urukurikirane rwo kugura, Fina Bank (Rwanda) Ltd yiswe GTBank (Rwanda) Plc. Guaranty Trust Bank plc kuri ubu ikoresha abanyamwuga barenga 10,000 muri Nigeria, u Rwanda, Cote D'Ivoire, Gambia, Ghana, Liberia, Kenya, Uganda, Sierra Leone, Tanzania, n'Ubwongereza mu gihe nayo iri ku rutonde rw’imigabane ya Nigeria London.
Kwinjira kwa GTBank binyuze mu kugura ibikorwa bya Groupe ya Fina Bank mu Rwanda, Uganda, na Kenya byafashije Banki kwagura ikirenge cyayo muri Afurika y'Iburasirazuba kandi ishimangira filozofiya yayo “Truly International Proudly African”.
Guaranty Trust Bank (Rwanda) plc ni banki icuruza kandi ifite umuco wa serivisi ukomeye. Kugeza ubu Banki ikora amashami 14 hirya no hino muri Kigali no mu ntara 4 zo mu Rwanda. Banki ishyira hejuru cyane mu gusobanukirwa ubucuruzi bwabakiriya no gutanga serivisi zirenze ibyo abakiriya bategereje. Ibikorwa bya Banki bigengwa n’amahame shingiro yiswe Amategeko 8 ya Orange, aribyo: ubworoherane, ubunyamwuga, serivisi, urugwiro, indashyikirwa, kwizerwa, inshingano z’imibereho, no guhanga udushya. Aya mategeko agaragaza ibara rya banki rifite ibara rya Orange.
Usibye gutanga serivisi nziza kubakiriya bayo, Banki itanga umusanzu mwiza kandi ufite intego mugutezimbere umuryango wabakiriye. Kubera iyo mpamvu, inshingano z’imibereho rusange nizo shingiro ryibikorwa bya Banki kandi byinjijwe cyane mubikorwa byubucuruzi. Ibi byemeza ko umugabane munini winyungu za buri mwaka wa Banki unyuzwa mumishinga ifatika cyane muburezi, iterambere ryabaturage, ubuhanzi na siporo.