More than 19,000 pubs, clubs, betting shops, hotels and other commercial premises have signed up to BT Sport since its launch last August.
According to a Sweeney Pinedo study, BT Sport is now available in 24 per cent of all pubs, almost as many as have a Sky Sports subscription (25 per cent).
BT has increased the commercial market for TV sports packages by around 26 per cent in the UK over the last nine months.
Bruce Cuthbert, Director of Commercial Customers at BT Sport, said it has been "a fantastic achievement" to sign up 19,000 customers so far.
He said this "underlines the appeal and the affordability of BT Sport".
"To achieve a 24 per cent share of pubs in our first year is phenomenal," Mr Cuthbert claimed.
"A year ago we said we wanted to bring premium live sport to a wider audience, including those that were unable to afford Sky’s high prices, and that’s exactly what we’ve done."
He claimed that BT's success in the commercial TV sports market "adds to its achievements in the consumer area", where BT Sport is now available in around five million homes.
BT Sport is available to commercial premises from £60 per month.
The BT Sport Pack includes BT Sport 1, BT Sport 2 and ESPN, all of which are available in both standard definition and high definition.
As well as Barclays Premier League, FA Cup, Scottish Premiership and international football, BT Sport provides coverage of the Aviva Premiership - England's top domestic rugby union league.
Viewers can also enjoy NBA Basketball, WTA tennis, Moto GP, the World Rally Championship and UFC events.