About Us

About Us

Speedflow is a group of companies with over 18 years of success in multiple sectors. Founded in London as a VoIP-telephony service provider in 2004, the group developed and released its first software products shortly after: MediaCore Softswitch and AccuCore ERP. To fill the increasing demand for Bulk SMS software, Speedflow added messaging features to MediaCore and, in 2015, released a stand-alone carrier-grade SMS solution. In 2017, innovative advertising platform AdCharge was launched.

Inspired and challenged by each technological breakthrough, Speedflow’s commitment to the development of high-end software products has earned it authoritative positions and recognition in multiple industries. In December 2019, SMS solution MediaCore SMS won Best SMS Aggregation Tool at the Messaging and SMS World Awards. The same year, AdCharge spread internationally to cover Southern Asia.

In parallel, Speedflow has not ceased exploring new markets. In 2012, the company launched a web development branch, which has been responsible for the production of dozens of modern websites for nationally recognizable brands. In 2019, Speedflow entered the publishing business and printed over 300,000 books in just under three months.

At present, more than 1000 companies around the world rely on our services and solutions to adapt to a fast-changing business climate and overcome arising challenges – a testament to the reliability and quality of our products.

The secret of the success achieved so far is heavily rooted in our strong work ethic, effective communication, teamwork, and a drive to discover seamless solutions to present and future challenges. Success would not have been possible without an in-depth understanding of how business blocks interlock – knowledge that drives us and our partners to new horizons.

Speedflow is ever committed to seeing through technological breakthroughs to further cross-industry innovation and provide solutions for the betterment of people’s lives. The journey continues.

Our Corporate Structure

The Speedflow group consists of 4 entities, registered in Bulgaria, United Kingdom and Hong Kong:

Speedflow Communications Limited (UK)

The oldest company in the group, started at 2004, that executes voice and SMS business.

Speedflow Solutions Limited (HK)

The entity that deals with telecom software solutions and the affiliate advertising branch.

SFB Limited (BG)

All operations related to web and applications development and non-telecom related software products

SF Platform Limited (BG)

The company dealing with the development and implementation of AdCharge, our innovative advertising platform

Speedflow Affiliate

Our Team

Our highly skilled team is the backbone of Speedflow. One hundred and sixty managers, developers, engineers, designers, marketers, data scientists, quality assurance specialists, technical support, customer support, NOC, and more are the decision-makers behind our technological creativity, productivity and stability. Each one of them is an expert in their field, a professional and a multi-tasker.

Meet the faces responsible not only for Speedflow’s success, but for your company’s too:


Vlad Ellis



Nata Ellis



Sergey Dyatchenko


denis mollov

Denislav Mollov

Software Sales Director

“Our philosophy is anchored in the development of trustworthy, long-term and mutually beneficial cooperation with partners. Enjoy your business journey with us!”

business development

Hristiyana Kostova

Head of Business Development

“Business growth comes from adding value to every relationship and keeping your loyal customers engaged.”


Max Goshtynar

Head of Sales, Voice

“A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools – Douglas Adams.”


George Uzunov

Head of Premium Voice Department

“Good attitude and honesty will take you much further than your rates will”


Boryana Yanakieva

Head of Account Management, AdCharge

“Earn your partners’ respect, and they will repay you with loyalty.”


Konstantin Vykhristenko

Head of Marketing

“If you want to win your customers’ hearts, look at things through their eyes”