Manx Utilities chairman John Wannenburgh says the organisation has 17 non-disclosure agreements at the moment - but wouldn't be drawn on details.
In Tynwald this week, Arbory, Castletown and Malew MHK Jason Moorhouse quizzed him about the gagging contracts.
Mr Wannenburgh said they were used infrequently to protect confidential information.
And he added the agreements wouldn't affect the government's whistleblowing policy:
Police investigate sex assault claim against officer
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FOI request queries Douglas Head road repairs
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Company launches Xmas gift donation scheme for ill children
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Living Hope applies to return Castletown building to church use
Living Hope Church says it's hoping to bring a building in Castletown back to its original use.
Lord Street talks continuing despite hiccup
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Long-term empty homes to be discussed in Tynwald
How many properties are empty on the Isle of Man?
Two candidates vie for seat on Peel Commissioners
Two candidates have come forward to contest a by-election in Peel next month.
Police investigate Douglas fight after video circulates online
Police are investigating a fight in Douglas after footage of the incident has been circulated online.
