"The offer was rejected in December, just before Christmas.
"The main reason we rejected the offer was because, if the technology and concept is worth millions already, just think how much it will be worth once people use it.
"I understand this is a big risk for me but I want to create this as a household name, and at the same time make something for myself.
"The big thing about what we're doing is that there are no competitors - this is a real time money saving expert - it's like a Bloomberg for the general public."
For his latest venture, weneed1.com, Ali said he has 'developed an algorithm which provides real time quotes instead of the normal pre-fixed quotes you find on insurance sites."
The idea for the money-saving website came from Thorpe, an entrepreneur who lives in Scarborough with his family.
He founded WeNeed1 in 2009 as a reverse marketing platform designed to introduce buyers to sellers of goods and services in the UK, but it wasn't until he arranged a meeting with Ali that the idea really took off.
The main reason we rejected the offer was because, if the technology and concept is worth millions already, just think how much it will be worth once people use it.
The teenager, who came to Thorpe's attention on BBC News in Yorkshire, coded the WeNeed1 platform in his bedroom while studying for his A-levels.
The site is designed to alert both buyers and sellers of available products, everything from properties to electronic items, with constantly updated prices.
Set to be launched on January 28, the young entrepreneur said he now hopes to inspire other teenagers to get involved in the business world.
Ali previously hit the headlines when he created Project 2006, a video game which had a £5.99 (NZ$10.30) per month subscription cost and made £30,000 (NZ$51,000).
The teenager, who still lives with his parents and siblings, said he became interested in computers from a young age and taught himself how to code by watching YouTube videos and reading books.
Ali said: "Right now I work from the bedroom day and night but we're launching this globally so we will need to travel more.
People think you need to have a massive investment or to take out loans but you don't - you can start small and build it up.
"My mum used to hate me going on the computer all the time but I think she's proud of what I'm doing now and my brother has been inspired by what I'm doing.
"I have learned everything from watching videos and books - there's not much being done in schools and the education system is a bit messed up.
"Anyone can revise for exams but I don't think enough is being done to prepare people for getting out in the real world.
"I want other people to be inspired and I want to inspire young people to develop a work ethic - it disgusts me when you see young people just getting drunk on a Friday night."
The teenager, who is studying for English, geography and law A-levels, said his most extravagant purchase so far has been contributing £1,400 towards refurbishing his parents' living room.
The student said that the majority of his fortune is placed in savings accounts to help fund his business ventures.
Ali, who estimates that he has earned around £41,000 from his businesses, said: "If I see some clothes or trainers I like I'll buy them but most of my money is saved.
"I look at the things I make as inventions and I like to be proud of building them up.
"People think you need to have a massive investment or to take out loans but you don't - you can start small and build it up."
