There are now 24 adviser firms on the lender’s panel, with Sesame last week confirmed as an addition.
Tesco Bank said it expected to reveal more mortgage brokers would offer its loans this year.
The lender’s director of mortgages, Julian Hartley (pictured) said: “We are committed to helping Tesco Bank customers’ purchase their own home and I am delighted with the addition of Tenet to our intermediary panel.
“It has a strong record of customer service that will help us to deliver our award winning mortgages to more Tesco customers.”
Simon Broadley, the new managing director of TenetLime, added: “Tenet linked with fifteen new lenders throughout 2017 and we plan to keep expanding the lending choices for intermediaries and their clients in the year ahead.
“Tesco Bank offers competitive products with no dual pricing, plus its mortgage portal allows brokers to get immediate updates online.”