ULS saw an increase in brokers actively using its platforms of 6% over the six month period.
Countrywide acquired the commercial property firm back in 2013.
Lynda Blackwell was speaking at the Association of Short Term Lenders annual conference.
The Leeds Expo will take place on 30 April whilst the London Expo will be on 20 October.
However, during the third quarter completions were down 2%.
This comes as gross marketplace lending (which includes crowdfunded or peer-to-peer loans) rose by more than £500m in the first half of the year.
F4B recently achieved fully regulated status with the Financial Conduct Authority (FCA).
In March this year, Cambridge & Counties Bank announced record results for 2018, with deposit and lending levels reaching all-time highs.
Despite receiving 17,523 applications Nottingham Council has issued just 472 final licences.
Those aged 18 to 39 can open a Lifetime ISA (LISA) and earn as much as £32,000 on their savings as a government bonus, to put towards their first home or retirement.