Both the technology platforms will be implemented into Stonebridge’s technology system, Revolution.
Both services offer access to circa-200 solicitor and conveyancing firms, online case tracking and field support.
Paul Nye, business partnerships director at Stonebridge, said: “We recently undertook a review of leading conveyancing propositions which looked at a number of key areas, including feedback from our ARs, support, service standards, pricing and IT functionality.
“We felt eConveyencer and BM Solutions Conveyancing were outstanding with both firms offering great all-round propositions.
“Our ARs will have access to platforms which are simple to use and will integrate seamlessly into our own Revolution system so quotations can be obtained quickly and without duplicated data entry.
“When combined with the ability to select from a wide range of law firms based on client preference and a strong service culture, we are confident that Stonebridge ARs and their clients now have access to the best in the market place.”
BM Solutions Conveyancing can be used in conjunction with a range of discounted mortgage products or as a standalone service with any other lender for clients wanting a buy-to-let or residential mortgage.
Ben Thompson, managing director of ULS Group incorporating eConveyancer, said: "Intermediaries have emerged from the last decade even stronger than they were before the credit crunch.
“This is testament to the great choice and experience offered when customers need mortgages, both in good times and in bad.
“Today, one of the key areas where intermediaries can properly differentiate themselves is through fully controlling and influencing the experience that customers have when moving home and remortgaging.
“Stonebridge advisers will now be able to do exactly that, through working with eConveyancer, and I'm delighted that we have been chosen to partner them for conveyancing."
Phil Rickards, head of BM Solutions, added: “It’s great to be confirmed as one of Stonebridge’ s chosen conveyancing partners and I’m excited at the prospect of further growth in what’s become an important part of an adviser’s toolkit.
“I’m also delighted that advisers will have the largest business development team of its kind on hand to support either face to face or over the telephone. I’m very excited about what can be achieved here.”