Two developers and a publican from Co Down have been banned from doing business in separate rulings from the Department of Enterprise, Trade and Investment (DETI).
Husband and wife Kieran Paul (51) and Jacqueline Burns (49) of Crieve Court, Newry, were disqualified for seven years and two years respectively following their conduct as directors of construction and civil engineering firm KB Developments Limited.
The firm entered administration in August 2011 owing £2m.
Mr Burns was found to have permitted the firm to lodge company funds to a non-company bank account in the company name, putting them beyond the reach of a secured creditor.
Mrs Burns was said to have allowed herself to be recorded as a director without undertaking the duties the role entailed.
Meanwhile Richard Christopher William Ferris (50) of The Priory, Dromore, Co Down, was disqualified for nine years in respect of his conduct as a director of The Halfway House bar and restaurant in Banbridge.
Proceedings are ongoing against another director.
The company entered into administration on March 10, 2010, with losses said to total £792,793.
He accepted permitting the company to be financed by money owed in taxes and of failing to file various accounts and returns over a period spanning 2001 to 2009.
Mr Ferris did not accept that he failed to fully co-operate with the administrator, that he misrepresented assets, or had inadequate title to lands on which trading assets were located.
He also denied spending £69,312 of company funds on obtaining planning permission for alterations to company premises and to provide an 81-bedroom hotel on lands owned by the company and also on other lands owned privately by the directors.
But DETI said it "maintains these allegations and contends that the evidence filed supports and proves the misconduct alleged".
The Halfway House continues to trade as normal under new owners.