Arxis has roots in the ancient Greek verb “αρχω” (arkho), meaning to begin, to lead, to move forward. It speaks to initiative and the act of starting something significant. Combined with “Partners,” it captures our essence: we stand by your side and we help you begin bold chapters, manage complex transitions, and lead with confidence.
From Greece to London, Dubai to Singapore and Switzerland to North America, Kostas has extensive operating experience spanning the full commercial spectrum: from building new businesses and entering new markets to optimizing the GTM strategy, developing partner ecosystems and alliances and driving sales and commercial excellence.
Kostas is a mentor and advisor to start-ups, and a frequent speaker and author on growth strategy, international expansion and commercial model optimisation.
He lives in Zug, Switzerland but works with clients across Europe, the Middle East, and the broader EMEA and APAC region, with particular focus on Greece, Southeast Europe, and the UAE.
Besides the core team, we have access to a network of specialists with deep expertise in specific industries, functions or markets. Whether you need regulatory insight, technical expertise, or local market knowledge, we can bring the right expert to the table.
Katerina makes everything work behind the scenes. She’s the operational backbone of Arxis Partners – the one who makes sure nothing falls through the cracks, and that every client receives world-class support from start to finish.
Katerina is fluent in English, French, and Greek, conversant in German and Spanish, and has a talent for making clients feel genuinely looked after – no matter where they’re based or what challenge they’re facing.
When she’s not at work, Katerina is probably planning her next adventure, exploring new recipes, or perfecting her multilingual small talk over good coffee.
Greg has 15+ years of experience designing and executing transformation initiatives across Europe and Asia Pacific. At Arxis Partners, he has oversight of our project infrastructure, backend analytics, reporting systems, and proprietary toolkits.
He’s a specialist in customer service optimization, data analysis, and process design, which means he knows how to make complex things simple and messy things structured.
When he’s not building frameworks or optimizing workflows, Greg is probably exploring the latest tech trends, enjoying quality time with family, or planning his next getaway to somewhere warm and sunny.
Our industry focus reflects our substantial experience in these sectors: we’ve lived the regulatory complexity of Healthcare IT, the commercialization challenges of Medical Devices, the scaling dynamics of B2B SaaS, and the demands of an industrial business operating in more than 150 countries. For other industries, we evaluate fit carefully. We believe that commercial dysfunction patterns transcend industries (pipeline problems, misaligned incentives, unclear value propositions), and these break B2B companies the same way in industrial equipment as in enterprise software. Sector knowledge is useful. Commercial experience matters more. But we’ll tell you honestly if we’re the right partner, or point you to someone better suited.
We have a fairly specific target client, and if we’re honest, most companies that find us aren’t an ideal fit. We’d rather be upfront about that now than waste your time. We work with small to midsize B2B companies at critical moments: when the commercial stakes are high, the timeline is compressed, and getting it wrong isn’t an option. We don’t work with everyone. We work with leaders who are ready to move.
