Leadership

Senior Executives

Atanas Kiryakov

Atanas Kiryakov

Chief Executive Officer

Atanas Kiryakov

Chief Executive Officer

Atanas Kiryakov is the founder and CEO of Ontotext and a member of the board of the Linked Data Benchmarking Council – a standardization body who’s members include the major graph database vendors.

Kiryakov obtained his M.Sc. degree in AI from Sofia University, Bulgaria, in 1995. Today he is a top expert in semantic graph databases, reasoning, knowledge graphs, text mining, semantic tagging, linking and search. He’s also an author of signature academic publications with more than 2500 citations.

Atanas is a partner and a board member in Sirma Group Holding – one of the biggest Bulgarian IT businesses listed on the Sofia Stock Exchange. Atanas started in Sirma as a software engineer in 1993 and became a partner in 1997. In the 90s, he led projects in the areas of CASE, CSCW and b2b for big corporations and government organizations in the US and Canada.

In 2000 Atanas dropped off his Ph.D. to start Ontotext as an R&D lab within the Sirma Group. In 2004 Kiryakov masterminded Ontotext GraphDB (initially named OWLIM) and was its product manager until 2010. In 2008 he led the process of acquiring VC funding for Ontotext and spinning it off as a worldwide leader in semantic technology.

In 2016 Atanas was included in the ‘New Europe 100 — changemakers in central and eastern Europe’ list compiled by Res Publica, Google, Visegrad Fund and the Financial Times.

Deron Ryan

Deron Ryan

Chief Commercial Officer

Deron Ryan

Chief Commercial Officer

With more than 20 years of sales leadership experience across diverse industries, Deron has a strong track record of building and leading high-performance sales teams that catalyze exponential growth.

Deron is expanding Ontotext’s global business with a focus on the U.S. Operations Team for Ontotext USA, Inc. and is overseeing the company’s full customer lifecycle by leading customer success, sales, demand generation and overall growth.

Veska Davidova

Veska Davidova

Chief Operations Officer

Veska Davidova

Chief Operations Officer

Veska Davidova joined Ontotext as COO in 2014 and now takes care of sales, finance and delivery. Veska is an established business leader, a Master of Science in Engineering and Process Automation, a golf and tennis aficionado and a mother of two sons.

Before joining Ontotext, she was CEO of Atos IT Solution & Services. Under Veska’s skillful command, the company went through a complete transformation after the global M&A between Atos Origin and Siemens.

Veska has also been a management board member at Siemens Bulgaria in her role of CTO, and was in charge of the Healthcare and IT businesses within the regional Siemens company.

She has held various positions at Hewlett Packard, with core responsibilities of providing consultation in the financial services industry across the EMEA, localizing and formalizing core IT based concepts for the public sector, manufacturing and FSI.

Doug Kimball

Doug Kimball

Chief Marketing Officer

Doug Kimball

Chief Marketing Officer

Doug Kimball is a business and technology evangelist focusing on advancements that can be applied to e-commerce, customer centricity and insights development in the data management space.

With more than 20 years of full-cycle B2B marketing experience at data, retail and supply chain providers across various industries and regions, he has developed a passion for enabling digital business.

As Chief Marketing Officer, Doug is leading the Global Marketing team at Ontotext, responsible for driving brand awareness, product & revenue marketing on a global scale.

Vassil Momtchev

Vassil Momtchev

Chief Technology Officer

Vassil Momtchev

Chief Technology Officer

Vassil Momtchev’s specialty at Ontotext is the development of solutions in the life sciences, pharmaceutical, and healthcare domains. An explorer by heart, Vassil possesses remarkable enthusiasm that knows no borders. He feels equally comfortable in product development, software architecture, text analytics, linked data, knowledge management, reasoning and large-scale databases.

Vassil has been involved in developing innovative information systems for Pharma and adopting the latest trends from applied research for more than 15 years now – and counting.

For the past ten years at Ontotext, he has managed multiple teams, coordinated several EU funded research projects and has a few years as a board member behind his back. Besides being a skillful team leader, Vassil is in love with off-the-beaten-path travel destinations, where he can delight his growing family with new experiences.

Business Units Heads

Ivaylo Kabakov

Ivaylo Kabakov

Solutions

Ivaylo Kabakov

Semantic Analytics Solutions

Ivaylo joined Ontotext in 2009 after several years of experience with different companies, covering the entire size spectrum – from two-person start-ups to 100k+ employee global corporations.His pursuit of interesting challenges brought him to Ontotext, where his passion for making computers do fascinating things met with the cutting edge developments in semantic technologies. Ivaylo’s involvement with the company has guided him through the full stack of duties for delivering solutions to clients. His strive has always been for adding practical value, while doing it with pedantic focus on quality.
Ivaylo’s keen interest in solving problems of global significance has always gone hand in hand with his enthusiasm for science and philosophy. He says he’s happy that these two realms are brought together in his professional life, which is touching on several areas of AI research. His ultimate goal is contributing to the effort of making sure that the development of super-intelligence, which he sees as close enough to care, is well-aligned with humanity’s goals and best interests.When not involved in the next cool semantic solution, Ivaylo enjoys moving forward – either by running a marathon or by operating all types of vehicles with an engine, preferably leading him to new encounters with interesting people.
Todor Primov

Todor Primov

Life Sciences and Healthcare Solutions

Todor Primov

Life Sciences and Healthcare Solutions

Todor Primov has experience as a business analyst, solution architect, project manager and product owner in the life science and healthcare IT.He has 18+ years long track record of development and delivery of large scale semantic data integration, information extraction and semantic search solutions in various domains such as bioinformatics, clinical, pharmaceuticals, agro-bio and health care.

Todor has excellent understanding of the business value of data and semantic technologies with primary focus on addressing the problems end-to-end (from vision definition to the implementation and deployment) of in large-scale information discovery and analytical solutions.

He was part of multiple successful projects in data integration for life sciences, including highly scalable sequence repositories, semantic meta data integration of biomedical entities, interactive visualization of data. Todor participated in the specification, implementation, deployment and the support of the first National Health Portal and Integrated Personal Health Record in Bulgaria.
Panayot Panayotov

Panayot Panayotov

Product Development

Panayot Panayotov

Product Development

Miroslav Chervenski

Miroslav Chervenski

Technology Services

Miroslav Chervenski

Knowledge Graph Solutions

Zlatina Marinova

Zlatina Marinova

Research

Zlatina Marinova

Research Unit

Sales & Marketing Management

Peio Popov

Peio Popov

Sales Director – Financial Services Industry

Peio Popov

Sales Director – Financial Services Industry

Peio Popov joined Ontotext after years of successful work at IBM and SEP Bulgaria. He is a legal counsel with strong IT background, specializing in business development, intellectual property, and technology-related contract negotiations. Plus, he is one of the most influential people in Bulgarian social media, so mind your language on Twitter.Soon after coming on board as a Contracts and Negotiations Manager advising on commercial, technology and IP contracts, Peio took over business development in North America. Combining his outstanding organizational skills with his acute business flair, he seamlessly finds the best solutions for our customers.
Besides being highly skillful in business operations, Peio’s professional focus spans software licensing and development, free software and Open Data licensing issues, text analysis and Information extraction, PKI and Identity services and applicable cryptography, among others.Peio is well-known in the Linux society in Bulgaria and is an Open Data advocate. He is truly fond of travelling, but only for the sake of learning human stories. And yes, Peio can spend a whole weekend writing scripts to analyze the protocols of the National Assembly or artefacts of the Communist Party meetings without losing his sense of humor.
Ilian Uzunov

Ilian Uzunov

Sales Director – Life Sciences and Healthcare

Ilian Uzunov

Sales Director – Life Sciences and Healthcare

Ilian Uzunov joined us to strengthen Ontotext’s key position in the mainstream publishing industry, develop strategic partnerships and pursue business opportunities in EMEA.
With a Master’s degree in Contemporary Methodologies for Teaching and Learning English Language with Strong Use of ICT from Sofia University, later Ilian jumped in the deep end with an MBA programme in Executive Management from BEIED.

Prior to Ontotext, Ilian founded Sirma Media in 2002 and in 2008 spun it off as an independent company. He positioned Sirma Media among the major players in the fields of e-learning and modern presentation of cultural heritage in Bulgaria, accomplishing some of the most innovative and challenging nation-wide projects in these two domains.

Ilian is truly fond of finding new ways in which semantic technology can be harnessed for the sake of better and more efficient learning and teaching. After working for more than 15 years in the fields of publishing, education, e-learning, contemporary ways for management and presentation of cultural heritage, his enthusiasm is only understandable.

When Ilian is not supporting publishers in their digital transformation journey, he’s constantly looking for the road to his inner self with the help of his family and their constant pursuit of new sports and travel adventures.

Nikolay Krustev

Nikolay Krustev

Sales Director – Manufacturing, Infrastructure and Energy

Nikolay Krustev

Sales Director – Manufacturing, Infrastructure and Energy

Nikolay Krustev joined Ontotext in 2011 with rich technical experience stretching from software development, architecture, business analysis and project management. In his career prior to Ontotext he gradually moved closer and closer from purely technical to more business-oriented roles while keeping close ties to his technical background.Nikolay’s straightforward approach and social skills are proving to be most valuable in his typical working scenarios
– dealing with new clients in new industries and via new business models as well as creating fruitful long-term win-win business relationships.His off-duty activities include founding the Bulgarian Basketball Society and managing the most successful amateur basketball team in Bulgaria with more than 17 titles. His technical hunger is currently fed mostly by blockchain burgers.
Brandon Richards

Brandon Richards

General Manager for APAC

Brandon Richards

General Manager – APAC

Ivan Antrov

Ivan Antrov

Partner Manager for EMEA

Ivan Antrov

 Partner Manager for EMEA

Sachin Khungar

Sachin Khungar

Global Alliance Director

Sachin Khungar

Global Alliance Director

Milen Yankulov

Milen Yankulov

Marketing Director

 

Milen Yankulov

Marketing Manager

Milen Yankulov joined the Marketing Team to strengthen its digital marketing presence and lead generation capabilities. Milen holds MA of Marketing and Commerce and gained vast experience in both traditional and digital marketing communications.

 

Milen has broad marketing experience working as head of digital at International marketing agencies and Enterprises in the media publishing industry. He believes that the content is fundamental tool of providing marketing value and business specifics understanding.

Milen has more than 13 years marketing and sales experience in Media, Advertising, Web and IT industries. His professional interests are related but not limited with Web and News Medias, Semantic Search and Social channels and all digital disruptions that change the way we communicate and do business.
Samantha Isdale

Samantha Isdale

Market Engagement Director

Samantha Isdale

Market Engagement Director