The Garda Commissioner has met with the directors of Quinn Industrial Holdings this evening about the criminal campaign against them.
Drew Harris met with the company's representatives to update them on the gardaí's ongoing investigation into criminality and intimidation of QIH staff.
Four people were charged last month with the assault and false imprisonment of QIH director Kevin Lunney in Cavan and Fermanagh in September.
The 50-year-old was driving from work to his home in Kinawley, Co Fermanagh when he was attacked on September 17th.
Mr Lunney has described how he was beaten and tortured in an attack that lasted for about two and a half hours.
Gardaí and the PSNI have since launched a cross-border taskforce to investigate the attack and the wider campaign
In a statement this evening, the directors of QIH said they were very encouraged by arrests made over recent weeks.
They also welcomed the scale of resources being applied to ensure the safety of the company's staff and their families.
Liam McCaffery, CEO of QIH said: “This evening we met and thanked Commissioner Harris and his colleagues for their very significant and continuing efforts to bring those responsible for criminality to justice.
"Our resolve to continue growing the business remains strong and has been greatly strengthened by the gardaí's efforts and by the support and goodwill of our staff, the community, our public representatives and business partners, for which we are extremely grateful.
He added: “We remain committed to the business and community and look forward to the conclusion of the work being undertaken by the gardaí.”