SO what ERP system are you using? What do you sell? How do you manufacture? How do you handle inventory and finances?
You're either using SAP and you don't know it or you're using Oracle.
EDIT: just looked at your linkedin profile. I can see that your company literally has SAP consultants working for them full time. I don't know which SAP products you are using but you definitely are an SAP customer.
> You're either using SAP and you don't know it or you're using Oracle.
Or you're using NetSuite (which nowadays is Oracle, granted, but a rather different product from what most people think of when they talk about Oracle or SAP in an ERP context), or you're using Microsoft's ERP (Dynamics something or other? Never used it), or you're using something developed in-house (very likely running on an AS/400). Or hell, you might be running multiple ERPs in a weird limbo state mid-transition (e.g. Thermo Fisher, which was using AS/400 and SAP (or maybe it was Manhattan? Or both? My memory's fuzzy...) - the latter of which might very well have been partially implemented on AS/400 in order to integrate with the existing ERP - as of a couple years ago when I was working for them).
It's worth noting, too, that there are plenty of large and arguably-dysfunctional companies not using an ERP at all, or (like with my current employer) it's relegated to very specific uses because other functionality got offloaded to other systems (for example, it's relatively common to run a WMS separate from the ERP and integrate between the two, as it is with an eCommerce system; in my employer's case, all three are separate).
You're either using SAP and you don't know it or you're using Oracle.
EDIT: just looked at your linkedin profile. I can see that your company literally has SAP consultants working for them full time. I don't know which SAP products you are using but you definitely are an SAP customer.