Manx Telecom says its profits rose by more than 35 per cent last year.
The company's annual report for 2017 shows it made £11.9 million - up £3.1 million on the previous year.
The report says MT's earnings fell slightly over the last 12 months, with revenues slipping by £2.3 million.
Non-executive chair Kevin Walsh says the company's on-Island network will see further improvements in the coming year.
Vondy's Garage site up for sale
Appeal for walkers not to disturb birds at beauty spot
Company behind Douglas bar to face court date
DoI can't give info about MHK parking fines
Plans submitted for hospital improvements
Brace for fuel price rises, says Chief Minister
Safety drills to prepare the Manannan today
Band headquarters vandalised with mud