ZURICH, Feb 5 (Reuters) - The three founding shareholders of SoftwareOne aim to replace the board of the Swiss IT services provider after a failed bid to delist the company last year through a sale to U.S. investor Bain Capital.

Daniel von Stockar, Rene Gilli and B. Curti Holding said they have called for an extraordinary general meeting "to elect a new board with no delay", seeking to remove president Adam Warby and most other existing board members.

The three shareholders control 29.1% of the company stock.

"The board of directors will examine the proposal and issue a statement and provide further information in due course," SoftwareOne said in a statement.

The company's Zurich-listed shares were up 8% in morning trade.

SoftwareOne listed on the Swiss stock exchange in 2019, but its stock has suffered losses since then.

The founding shareholders attempted to delist the company last year by selling to Bain but the board rejected a non-binding offer of 18.50 Swiss francs per share, worth about 2.9 billion francs ($3.33 billion), as well as higher offers.

In mid-January, after examining its options, SoftwareOne decided it wanted to remain independent. The company wants to present its future plans at a capital markets day on Feb. 15.

SoftwareOne’s founding shareholders are of the opinion that the recent non-binding offer should have been presented to shareholders, Monday's statement said.

The internal wrangling has not put off Bain, according to a person familiar with the matter.

“Bain is in discussions with the founding shareholders and remains interested in a transaction, should such an opportunity arise" the source said.

A Luzerner Kantonalbank analyst described the situation as a tug-of-war that is not good for the company, adding that it "distracts management from day-to-day business".

With more than 9,000 employees, SoftwareOne helps companies to buy and manage software from other providers such as Microsoft, SAP and Adobe. ($1 = 0.8697 Swiss francs)

(Reporting by Noele Illien and Dave Graham Editing by Rachel More, Michael Perry and David Goodman)