Yes, on the same basis as anywhere else in the UK. Northern Ireland is part of the UK for financial services regulation and FCA rules apply there as they do in Great Britain, so the same distinctions hold: incorporated business customers outside the consumer credit regime, sole traders and partnerships potentially inside it, private buyers regulated in full.
CW Asset Finance works with dealers across the UK, including Northern Ireland, and is an Appointed Representative of Rural Finance Limited (FRN 630701).
The differences dealers in Northern Ireland raise most often are commercial rather than regulatory: cross-border trade with the Republic of Ireland, currency where a machine is priced in euro, and lender appetite for assets that will be based or used across the border. Not every funder takes the same view of that, which is where breadth of panel helps, and it is worth flagging early in a case rather than late.
Being outside Great Britain does not put an introduction outside the FCA’s reach. This is general information, not legal or compliance advice, and your position depends on your customer mix. See the northern-ireland-dealers page for more.