Intelligence for a
greener tomorrow

Automated sustainability tender intelligence. Find, bid, and win — without the overhead.

Enter Platform →

About Us

Sustainability intelligence,
built for the AI age.

GreenStack AI is an AI-native sustainability consultancy. We deliver net zero roadmaps, carbon assessments, ESG reports and CBAM compliance intelligence — faster, deeper and cheaper than any traditional firm. Our clients range from UK public sector bodies and NHS trusts to international manufacturers navigating EU carbon tariffs.

60–80%

cheaper than Big Four

2–3 wks

average delivery time

UNGM

Vendor No. 1203916

PI £50k

professionally insured

⚡

AI-native speed

Where traditional consultancies take 12 weeks, we deliver in days. No human bottlenecks. Full reports generated, refined and delivered at machine speed.

🔬

Full-organisation depth

Not just energy bills. We cover every Scope, every department — people, culture, leadership, supply chain, regulatory exposure — in one intelligence report.

💷

Transparent pricing

AI eliminates 60–80% of traditional consultancy overhead. We pass every penny of that saving directly to our clients. Fixed fees, no surprises.

🌍

Global reach

Registered on UNGM, active across UK public sector, international development banks, GCC markets, and EU-export manufacturers navigating CBAM.

SATSSTRATEGY EDUCATION LTD · Co. No. 16348591Registered in England & WalesUNGM Vendor No. 1203916PI Insured · Policy CHBS5487956XB

Our Approach

We believe in the power of curiosity-driven exploration. Every tender starts with an insight, and every win opens a new door to sustainable growth.

Explore more

Automation × Sustainability

Find the opportunity

Every meaningful sustainability contract begins at the intersection of real-time intelligence and bold bidding strategy. GreenStack operates at that crossroads — surfacing tenders before your competitors even know they exist.

Win at scale

We believe the best bids emerge when precision meets conviction. Our AI pipeline is designed to uncover the right contracts and auto-generate submissions that resonate with procurement decision-makers.