ONISIS Logo
Konstantinos Kormentzas

Konstantinos Kormentzas

Founder & Managing Partner

Profile
Konstantinos brings a rare "helicopter view" to every engagement—a skill forged through decades of rotational roles, internal audits, and C-level tenures in banking. However, he is not a career consultant managing from a distance. Having stepped away from corporate safety to build his own ventures, Konstantinos has personally carried the weight of a 40-person payroll and navigated the realities of entrepreneurship. This duality allows him to "feel" a business almost instantly, diagnosing friction points without being intrusive or wasting valuable management time. In a market filled with experts who speak in jargon, Konstantinos distinguishes himself as a translator. He speaks four languages fluently: Business, Finance, Technology, and—most critically—Data. He understands that business owners don’t need to become IT experts; they need clarity. He bridges the gap between C-suite intuition and raw numbers, leveraging advanced Analytics to filter out the noise and present clear, actionable paths that validate the owner's instinct. Konstantinos operates with an "Operator First" mindset. He understands that a strategy is useless if it cannot be implemented on Tuesday morning. He leverages his fluency in Data not to showcase technical complexity, but to build simple, automated dashboards that give owners control over their ship. Whether acting as a Strategist or a Risk Manager, his goal is to replace uncertainty with evidence, allowing leaders to sleep better knowing their course is true. He views his role as a supportive ally, not a judge. He replaces the "consultant’s wishlist" with a hands-on partnership that respects the human element of leadership. Konstantinos joins you in the trenches to bridge the gap between where you are and where your gut tells you to go.
Expertise
Strategic Planning & "The Big Picture"
Data Analytics & Business Intelligence
Financial Management & Risk Management
Operational Excellence & Process Optimization
Digital Transformation & Innovation
Change Management & Human-Centric Leadership
Konstantinos Kormentzas - Founder & Managing Partner | Onisis Consulting