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21+ YEARS
WITH START-UPS & GLOBAL BRANDS
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I am Zach Kallergis & as a B2B Sales Consultant,
I don’t just offer advice — I take ownership of the full sales cycle. With years of real-world experience across different industries, I’ve built the mindset, skills, and drive it takes to lead sales efforts from start to finish.
To deliver real results, you need more than theory. You need someone who understands how sales, marketing, and business development work together — and who can put that into action. That’s where I come in.
For renewable energy companies ready to scale, I bring the structure, strategy, and execution needed to drive growth, strengthen customer relationships, and stay ahead in a competitive, fast-evolving market.
WHAT I DO
Whether entering new markets or launching new services, I’m brought in when companies need real sales execution — not just strategy.
Unlike traditional consultants, I serve as a Strategic Partner to renewable energy companies seeking to scale. With over 15 years of expertise in European renewable markets, my role extends far beyond sales support—I lead growth initiatives, open new markets, and cultivate long-term, high-value partnerships. I bring an agile, results-oriented perspective to each engagement, operate with the accountability of an internal executive, and mentor junior teams to ensure outcomes are both impactful and sustainable.
Client Identification & Outreach — turning cold leads into warm opportunities
Sales Pipeline Development — building processes that actually convert
Partnership Development — negotiating and closing high-value deals
Market Expansion — unlocking growth in the Benelux, UK, Scandinavia, & Greece.
HOW I HELP
I support manufacturers and service providers entering or growing in Europe by delivering :
SALES DEVELOPMENT
& OUTREACH.
WHY IT WORKS
01
I don’t just advise—I close
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Fast ramp-up, no micromanagement needed
03
Fluent in B2B execution across solar and adjacent sectors
04
Navigate Europe’s B2B market with confidence.
distribution
C & I
LARGE SCALE
ABOUT ME
Sustainability & Solar Energy
Since 2010, I’ve applied that same rigor to the sustainability space—driving cross-border sales into multiple European markets and specializing in Commercial & Industrial (C&I) distribution as well as large-scale solar-energy verticals. Highlights include:
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Pan-European Reach: Cultivated partner networks and closed deals across Benelux, Scandinavia, and UK & Greece.
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C&I Distribution Expertise: Designed go-to-market strategies for solar modules, inverters, and turnkey systems—optimizing channel performance and after-sales service.
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Large-Scale Project Development: Led sales efforts for multi-megawatt installations, liaising with EPC contractors, Developers and end-users to secure long-term off-taker agreements.​
With over 20 years of international B2B sales experience across diverse industries, I bring a growth-driven perspective that’s equally at home in agile start-ups and Fortune 500 environments. Based in the Netherlands with Greek roots, my career has been defined by scaling businesses—whether you’re launching a new venture or accelerating an established leader.
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Pharmaceuticals & Healthcare Commuications
My journey began in 2007 in the pharmaceutical sector. By 2010, I was a strategic partner to two of the world’s most respected brands—Pfizer and Sanofi—securing six-figure purchase orders within months and managing every project from contract negotiation through to final delivery. Navigating a fast-paced, highly regulated market taught me how to own complex sales cycles, pivot on the fly, and consistently exceed customer expectations.
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Discover how my deep expertise in high-value B2B services and products can kick-start your next phase of growth. Read more about my clients and let’s explore how we can achieve your most ambitious sustainability goals together.
ASTRONERGY
CHINT
Chinese Tier 1 PV solar Module Manufacturer
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