OnTheMarket has signed a listings agreement with Seymours, one of the largest independent estate agency networks operating in the South East of England, to advertise its residential sales and lettings properties.

The signing comes just weeks after OnTheMarket announced that it had surpassed 15,000 advertisers for the first time in its history, continuing its momentum in the wake of recent progress against a number of key operational performance metrics since its acquisition by CoStar Group back in December last year.

The Seymours 20-branch estate agency network primarily operates in Surrey, with an additional presence in London and Hampshire. The agreement with OTM includes Seymours Lettings & Management, Seymours Land & New Homes and Seymours Prestige Homes.

Jason Tebb, president of OTM, said: “I’m really pleased Seymours has chosen to commit to our portal as their strong brand continues to develop across the South East and the partnership will help our ongoing push for growth in the region.

“It’s an incredibly exciting time for our agents, with the acquisition by CoStar Group set to accelerate our target of becoming the market leader, bringing industry-leading global expertise and significant financial firepower to help deliver even more value for all our customers.”

Graeme Wadhams, group marketing director at Seymours, commented: “We’re constantly looking to provide our clients with the best experience when it comes to selling their home. A key part of this is ensuring we continue to attract the right buyers and encouraging viewings. To this end we’re delighted to extend the digital advertising of our clients’ homes to include OnTheMarket and are looking forward to this becoming another key component of the property marketing services we offer.”

The listings agreement follows the footsteps of similar deals with Edward Mellor and Rettie, who both agencies committing to advertise with the portal in the last few weeks.