About Green Portal 

Welcome to Green Portal Agency. We are an international B2B brokerage and consulting firm specializing in the medical cannabis and CBD supply chain. Read more about who we are and what we do here.

Who we are 

Green Portal Agency was founded in 2023 by CEO Stefan den Boer and is based in The Hague, Netherlands. Our core value is simple: only promise what is feasible, verify what is essential, and prepare every batch and collaboration to be QP-ready.

What we do

We connect verified buyers with compliant sellers. In addition, we provide compliance advice (GACP/GMP/GDP), perform due diligence on batches and facilities, and invest strategically in licensed growers and GMP facilities with participation and profit-sharing models. No pipe dreams, just viable, transparent commercial routes that build trust and long-term success.

Why Green Portal 

What makes Green Portal Agency different from other cannabis consultancy companies?
We commit to execution, not exaggeration. Our model is built on verified counterparties, QP-ready batch preparation, auditable compliance roadmaps, and real infrastructure insights, not empty industry talk.

How does Green Portal Agency build trust with its clients?
Through verification and preparation before mediation. We audit partners, map compliant routes (GACP/GMP/GDP), identify bottlenecks early, and hand off batches QP-ready. Transparency isn’t a slogan, it’s our operating standard.

Which concrete results can clients expect after working with Green Portal Agency?
Clients can expect verified buyer–supplier matches, compliance-ready documentation (SOPs, GAP/GMP/GDP routes), QP-approved batch hand-offs, risk-reduced supply chains, and scalable commercial frameworks including retainer or revenue-share participation options by contract.

“The strength of Green Portal Agency lies in their global network and radical transparency.
Every step is clear, compliant and auditable. |

They think in infrastructure, long-term partnerships and shareholder value, not quick wins and empty promises.

If you want real growth in the medical cannabis or CBD supply chain, this is the green door you walk through.”

Chris H.

CEO HSS