Game marketing firm crobo has received an injection of €4.25 million ($5.75 million) from specialist technology lender BOOST&Co.

It intends to double its workflorce in Gemany, and expand into Asia and the USA.

Founded in 2012, Berlin-based crobo works to deliver high-quality paying users to the free-to-play games market through a host of different marketing channels.

"Since the day we started, we have had ambitious plans for crobo," says founder and CEO Matthias Lesch.

"We have employed our proprietary, in-house, technology and have been profitable from day one. After just a short time in business, we are posting numbers that put us up there with some of the leaders in online performance marketing – but we want to become number one.

"BOOST&Co’s financial support and the confidence is a big push in the right direction. We want to use the fresh capital to strengthen our international position in games performance marketing. The support of BOOST&Co is a great help to doubling our revenues in 2014."

Crobo's proprietary marketing platform allows its 60-strong workforce to help game studios automate multi-channel campaigns while targeting niche audiences that are, according to the copmany, much more likely to convert.

Clients include Kabam, Goodgame Studios and Wargaming.

This business model caught the eye of BOOST&Co's Andrea Kowalski,who says, "Despite its young age, crobo has an impressive track record, highlighted by 1,200 % growth in 2013 whilst achieving profitability. crobo continues to set new monthly revenue records in 2014.

"We were also impressed with management and crobo’s team of over 60 employees, who have a unique knowledge of the mobile and online free-to-play games market."