Commsworld reported a 45% rise in adjusted EBITDA and a 28% increase in turnover, spurred by its public sector wins.
Openreach has accelerated its FTTP build rate to 73k per week, delivering a record 950k premises passed for its Q3.
Its total network has now expanded to 13m premises with a further six million where the initial build is underway.
For Q3 Openreach recorded net adds of 432k, taking its total number of premises connected to 4.4m, around a 34% take-up rate.
Its retail FTTP base grew year-on-year by 46% to 2.4m of which 2.3m were Consumer and 0.1m were Business.
BT Group recorded growth for pro forma revenue and EBITDA. Pro forma adjusted revenue hit £15.8bn, up 3% on Q3 FY23.
Pro forma adjusted EBITDA was £6.1bn, up 3%.
CEO Allison Kirkby said: "We continue to be on track to achieve our financial outlook for the year.
"As I assume the role of Chief Executive, we remain committed to our purpose and our strategic focus.”