Brown Bread has transformed into Gung-Ho!, which last year put on three unique 5k events, involving more than 10,000 runners and twice as many spectators.
The team began their Gung-Ho journey in their home city of Liverpool at Aintree Racecourse in August 2015, and went on to put on huge events Newcastle and Windsor.
They have 12 events taking place across the country this year and as many as 60,000 runners expected to participate.
Event director and Cbeebies star Alex Winters, 39, said: “The reaction to what we have done has been amazing. It really is incredible to think a business that a year ago was focused on graphic design is now putting on these unique events across Britain.
“We have had so much interest in what we are doing from places as far afield as Holland, Denmark, the Cayman Islands, Israel and Australia - next year we will break out all over the world.
“But even when we are pushing out worldwide we will still be based here in Liverpool – we love it here and wouldn’t want to be anywhere else.
The company, which is based in Liverpool city centre, began life in 2005 with brothers Alan and Paul Brown at the helm. But it was when they met Alex, whose wife is Paul’s niece, they started to change their focus.
“We were watching Ninja Warrior and I started thinking about all those classic shows – like It’s A Knockout and Total Wipeout – shows people would love to take part in but would never get the chance.
“I rang Alan and said ‘how about we do a giant inflatable obstacle course’? That idea stuck, and it turned into a 5k run, too.”
Gung-Ho! had a successful 2015, with sales for their events trebling the company’s turnover. They now employ eight staff, and are on target to exceed £2m in sales by the end of 2016.
Alan Brown, managing director said: “What we have done is a radical diversion from what we did in the past but we have used all our previous experience to make a success of Gung-Ho!.
“Before we began Gung-Ho! we had targets of increasing sales by 5%-10% a year, and now we are aiming for a 900% increase! We are very excited about the future of Gung-Ho! in Liverpool in Britain and across the world.”