Joseph Hayat, right, and Callum Hives have their own IT business.
They are too young to vote, buy alcohol or even drive a car, but Lincolnshire teenagers Callum Hives and Joseph Hayat are blazing a trail with their incredible business acumen.
The 16-year-old school boys combine A-level studies with running a successful IT company.
Between them they have more than 30 clients, one full-time employee, company mobile phones and a company moped.
Business customers have even paid for taxis to collect the boys from school so they can solve IT problems during their free periods.
Now the pair are considering putting future career plans on ice because the business, called Zeal Wave, has so much potential to expand.
Callum, from Navenby, near Lincoln, said he was amazed by how well the firm had taken off.
"It's been fantastic," he said. "We started off working in Navenby but soon realised there was a wide market for the services we provide.
"Now we've worked in solicitors offices and for a local building contractor, as well as retail outlets and private homes.
"I'm at school between 9am and 4pm so most of our work is done in the evening and at weekends, although I see some clients in my free periods and at lunch."
Callum said he had always been a "wheeler dealer".
"I've bought and sold on eBay and I've sold things like plants from my mum's garden at school. I would do anything I could do to make a profit really," he said.
"I've always been into computers too. I'm completely self taught, mainly from breaking things and putting them back together.
"I think we've done well because we have raw passion and determination. We've done everything ourselves. We have even converted an old outbuilding into an office."
Both boys took their GCSEs at Lincoln's Minster School last year. Callum got five A*s, four As and one C. He is now taking four A-levels at the school and is also sitting Microsoft exams.
Joseph achieved four As, three Bs and two Cs and is now sitting A-levels at St George's Technology College in Sleaford.
For more on how the boys are running their firm see Thursday's Lincolnshire Echo.