A prominent regional estate agency chain, Goadsby, which has 25 offices across Dorset, Hampshire and Wiltshire, has joined OnTheMarket.

The news comes as OTM has had to deal with the PR fall-out from last week’s open letter to estate agents from the Competition and Markets Authority. While the letter specifically said that it currently has no issues with OTM  itself, publication has led to considerable speculation over OTM’s ‘one other portal’ rule.

However, Goadsby is apparently unworried.

The firm, which was established in 1958, will continue to advertise its properties on Rightmove as its ‘other portal’.

It has not had to drop Zoopla, as it had not previously used Zoopla for its residential stock, although it does use the portal for its commercial properties.

David Errington, group chief executive of Goadsby, said: “We are keen to support OTM, the UK’s only agent-owned, agent-controlled portal.

“OTM is an excellent portal which enables agents to present themselves and their instructed properties in the best possible way with no distracting non-property advertising or unhelpful information added. This is just one of the reasons we have chosen to join.”

Ian Springett, OTM chief executive, said: “We are extremely pleased to be welcoming a firm of the size and quality of Goadsby.

“This latest multi-branch firm to join us is another terrific example of how our momentum is building.”

Large multi-branch firms which have joined OTM since the beginning of the year include Nottingham Estate Agency and Harrison Murray which have a total of 37 branches; eight-branch firm Arnolds Keys which has offices in Norwich, Norfolk and north Suffolk; Watsons, a six-branch firm with offices in Norfolk; and Jeffries, a seven-branch firm in south-east Hampshire.

OTM announced earlier this year that the level of overall support had risen beyond 6,500 estate and letting agent offices across the UK, which was an increase of more than 50% since this time last year.

The figure consists of contracted members and agents who have signed a Letter of Intent to join OTM when total support reaches 7,500 offices – OTM’s next major milestone.