For British citizens, I don't think there are any other specific pilot loan providers.
For Modular training, you can get an unsecured £30,000 loan with 2.3% APR from Nationwide and several other banks offer similar loans. Depending on your background you could get them. You can also remortgage if you have a house or try and ask family members for money.
There is a very helpful page by the Wings Alliance on financing pilot training, maybe take a look at it:
https://www.wingsalliance.eu/training/finance/
I am definitely not a financial advisor and everything I've said is based off a google search, for more advice and specific details, you are better off seeing a financial advisor or your bank for advice.