Nid yw'n hysbys faint o gwsmeriaid Trimega (megis awdurdodau lleol, unigolion, cynrychiolwyr cyfreithiol a chyflogwyr) a gafodd eu heffeithio gan y canlyniadau annibynadwy hyn, ac mae’n bosibl na fydd modd eu hadnabod i gyd, oherwydd arferion cadw cofnodion gwael y cymni. Nid oes modd ailbrofi samplau Trimega oherwydd bod y gadwyn o gofnodion y ddalfa yn gyfyngedig iawn ac oherwydd dirywiad dros amser o unrhyw sampl gwreiddiol oedd yn weddill. Ni fyddai'r holl samplau a brofwyd gan Trimega wedi cael eu trin gan yr unigolion hyn.
The number of Trimega’s customers (such as local authorities, individuals, legal representatives and employers) affected is unknown and it may never be possible to identify them all, due to the company’s poor record keeping practices. Samples from Trimega cannot be retested, because of the extremely limited chain of custody records and natural degradation over time of any remaining original samples. Not all samples tested by Trimega will have been subjected to manipulation by these individuals.