We are supported by these awesome companies!


eMerchantPay is a leading online, mobile and POS payment service provider. We help e-commerce businesses of all sizes and sectors accept payments via multiple customer touch points. Designed to increase conversions, our offering includes robust payment processing technology, coupled with popular alternative payment methods and a range of acquiring services. eMerchantPay Limited is registered as an authorised Electronic Money Institution (EMI) and has the FCA’s permission to issue electronic money (e-money) and provide payment services under registration number 900778.

We are a self-funded, product-based company, and working on a number of challenging (both code and infrastructure), high-uptime (99.99%) payment products, utilising predominantly the Ruby and Rails stack.

Receipt Bank

Receipt Bank is an award-winning accounting software used by 30,000+ small business to make bookkeeping effortless. Our automation saves them hundreds of hours every year - and we’re just getting started!

We are based around the globe, but our development team is mostly here in Bulgaria. We are a start-up that cares deeply about high quality and sane development practices. We have learned through blood and tears that the best way is almost always through beautiful, easily maintained code.We are down to earth, happy Rails users and extremely proud sponsors of Balkan Ruby.


Catawiki's mission is to make special items available to everyone and we are one of the fastest growing companies in Europe. Our Online auction website attracts 14 million monthly users from around the globe to participate in weekly auctions across a variety of categories for special objects. The items we have auctioned off include a lock of Napoleon’s hair, a mammoth skeleton and the most expensive set of Lego ever produced! And yes, it's true, we use Ruby to sell Rubies!

Thanks to


Become a partner

If your company is interested in supporting Balkan Ruby, you can learn more about the partner opportunities by following the link below.