Denis O’Brien: alleges dossier is part of a conspiracy to damage him. File Photograph: Dara Mac Dónaill/The Irish Times

The Red Flag consulting firm being sued by Denis O’Brien has confirmed it had a client for a dossier of material relating to the businessman which he (...)

Businessman Denis O’Brien: believes the Red Flag firm was involved in putting material  together for an unnamed client. Photograph: Dara Mac Dónaill/The Irish Times

A judge has ordered various executives and staff of the Dublin-based Red Flag consulting firm, which is being sued by billionaire businessman Denis O(...)

Denis O’Brien wants orders permitting him inspect documents on the firm’s computers and devices. Photograph: Bloomberg

A dispute has arisen over whether the personal computers and devices, including mobile phones, of various executives and employees of the Dublin-based(...)

Businessman Denis O’Brien claims Red Flag was engaged to compile and contribute to a dossier of mainly unfavourable material about him. File photograph: Dara Mac Donaill / The Irish Times

Efforts are continuing to reach agreement about how much computer material a Dublin-based consulting firm must provide for photographing by experts fo(...)

Denis O’Brien: “It is clear to me that this is part of a campaign to undermine me and to disseminate false statements about me.” Photograph: Patrick Fallon/Bloomberg

In the sweltering Caribbean heat and humidity of an October day, 223 people gathered on the lawns of King’s House, the official residence of the gover(...)

Lawyers for Denis O’Brien have disputed the level of access being given to his experts for their inspection of Red Flag Consulting computers. Photograph: Getty

The High Court will on Friday hear details of a dispute over the access being provided by a Dublin-based consulting firm to experts for businessman De(...)

Colm Keaveney:   The speech “was entirely composed by myself”. Photograph: Cyril Byrne

Colm Keaveney, the Fianna Fáil politician named in court by lawyers for Denis O’Brien who claim there is an unlawful conspiracy against the businessma(...)

Denis  O’Brien: claims PR firm Red Flag Consulting is involved in a conspiracy against him. Photograph; Dara Mac Dónaill

A speech by Fianna Fáil TD Colm Keaveney that has emerged as the central focus of businessman Denis O’Brien’s legal action against a Dublin public (...)

Businessman Denis O’Brien. File  photograph: Matt Kavanagh

The computer memory stick at the centre of Denis O’Brien’s latest legal action contains some 80 files – including newspaper cuttings, Dáil and legal t(...)

 Gavin O’Reilly, chairman of Red Flag. File photograph: Eric Luke/The Irish Times

Red Flag, which specialises in strategic communications and has offices in Dublin, Brussels and London, has several connections to Independent News an(...)