Green Flow operates two strategic hubs serving distinct markets. Our founding office in Ireland leads capital project deployment across Northern Europe — partnering with Dublin Airport, the Dalata hotel network, University Hospital Limerick and Regeneron's biopharma campus. Our Zagreb office serves as our EU operations centre, coordinating Adria region expansion (Croatia, Slovenia, Bosnia, Serbia, Montenegro) and EU-wide administrative operations. Two hubs, one mission: patented drain hygiene infrastructure for facilities that matter. Managing Director: Ante Lelas.
Our operational and technical foundations were built in Ireland. Our Dublin team continues to manage major capital project deployments across Northern Europe — Ireland, the UK, Germany and the Nordics — partnering with tier-1 construction firms (BAM Ireland, John Sisk & Son, Jones Engineering, CJK Group, Tritech Group), national infrastructure operators (Dublin Airport, daa), HSE hospitals, the Irish pharma cluster (Regeneron), and global hyperscalers (Meta data centres).
In 2025, we established Green Flow d.o.o. in Croatia as our EU operations centre — a strategic addition, not a withdrawal from Ireland. Zagreb delivers efficient EU-wide reverse-charge VAT invoicing, a central base for Adria region partnerships, and growing EU compliance talent. The Adria region is now one of our fastest-growing markets — partnerships include Aminess, Liburnia, Valamar, Maistra, KBC Osijek and KB Sveti Duh.
Ireland leads our Northern European capital project work. Zagreb leads Adria expansion and EU operations. Both teams collaborate on technical product development, certifications (EU MDR Class I, ISO 13485, NSF/ANSI 2, HACCP International), and customer support — ensuring the same patented drain hygiene standard from Dublin Airport to KB Sveti Duh.
It all began with a simple observation: the technology used in North American hospitals, hotels, and food giants practically doesn't exist in Europe.
Working within Ireland's leading hotel group on indoor environmental protection systems, our founder came across the Green Drain™ system and recognized its huge potential for the European market. In 2021, from a small office in Dublin, we began our first installations. Dublin Airport, Dalata Hotel Group, Kerrygold, Regeneron — names that speak for themselves.
Success in the Irish market was no accident. Ireland was the perfect testing platform—a demanding industry, high hygiene standards, sophisticated clients. Once we proved that our approach worked, in 2025 we made a strategic decision: the Adria region is the next step.
In the US, almost every hotel and hospital uses Green Drain™. In Europe, almost no one has heard of it. In that emptiness lies our opportunity."
One person, one exclusive contract, one idea. Green Flow, registered in Ireland, with a vision — to bring the North American standard to Europe. First installations. The market is responding better than we had hoped.
Kerrygold, Moy Park, Regeneron, University Hospital Limerick. HACCP and the pharmaceutical sector confirm what we've known: Green Drain™ solves the problem others ignore. NATO base in Romania — our first installation outside Ireland.
Our team has grown alongside our Irish partners — from a single field engineer to a regional team supporting Dublin Airport, Dalata Hotel Group, University Hospital Limerick, Regeneron, Meta, BAM, John Sisk and Jones Engineering across Ireland and the UK.
Dublin Airport. Dalata Hotel Group — Clayton Hotels, Maldron Hotels. When they install the leading hotel chain and the country's largest airport, the message is clear: this isn't a niche product, this is the new standard.
Research into the Adriatic market confirms what we suspected: Croatia, Slovenia, and the wider region have the same problem, the same clients, the same standards—no solutions. A decision has been made to relocate the headquarters to Zagreb.
GD Uri-Tabs™ (July) and GreenSwirl™ (September) — launch of two new products in the EU market. A complete portfolio of drain protection solutions. Target: €1 million in revenue.
Strategic expansion into new markets. Local distribution partners with market expertise. Same vision, new territories.
Every project begins with an on-site audit. Every inquiry is answered the same business day. Every client receives personal support—no call center, no email autoresponder. Two decades across business development and the hospitality management industry mean we already understand the operational realities—staff turnover, variable occupancy patterns, OTA review pressure, HACCP inspections, and the procurement cycles that govern facility decisions.
We come to your facility. We identify critical points — from floor drains to urinals to kitchen drains. No cost, no obligation. Just the facts.
Based on the audit, we propose concrete solutions — which products, how many units, exactly where. No generic suggestions. Everything is tailored to your facility.
We install samples at critical points. You evaluate the results under real-world conditions. Seven days—enough time for the problem to appear and disappear. No risk.
We coordinate the installation, train the staff, and remain available. Annual review—to make sure everything is working as it should. A long-term partnership, not a one-time sale.
Every inquiry answered on the same business day. Audit scheduled within 48 hours. Delivery within 2–5 business days. Emergency situations — we're available directly, no waiting in line.
SGS >99.9%. 14 certifications. 58 peer-reviewed studies. 4× more effective than chemicals. Every claim we make is backed by a certification or study. No marketing hype without substance.
Zero water, zero energy, zero chemicals. 100% biodegradable products. Our technology solves problems without creating new ones. It's not a trend—it's the principle by which we choose what to stand for.
Growth is not an end in itself—the goal is to be relevant in every market we enter. We approach each new market the same way we approached the first: personally, slowly, with reference installations.
Combined revenue from Green Drain™, GD Uri-Tabs™ and GreenSwirl™ in the HR and IE markets — with the launch of two new products and entry into the distribution network.
GD Uri-Tabs™ (July) and GreenSwirl™ (September). Complete portfolio. Activation of the distribution network in HR and IE. Target: €1M.
Exclusive distribution partners for both markets. Focus on the hotel and healthcare industries. Reference installations in the first year.
Entering the CG market. Consolidating the regional network. Preparing for the SEE region.
The entire Southeast Europe is covered by a distribution network. Green Flow is the benchmark name in drain protection.
— OUR NETWORK
We don't work alone. Behind every delivery stands a network of Irish tier-1 contractors, three world-leading manufacturers (USA, Australia, Denmark), and proven logistics partners — giving us enterprise-grade capacity with a focused team.
Engineering & Construction
Manufacturers & Compliance
Distribution & Logistics
AL
Managing Director
Dublin · Zagreb
Twenty years across business development and the hospitality management industry. Leads Green Flow's European partnerships and capital project rollouts — from Irish tier-1 contractors and HSE hospitals to Adria region hotel groups and clinical hospital centres.
Free technical audit, 7-day samples, no obligation. Or just a chat about what's in store for us in the region.