We started with a simple question: do cities really know their trees?

Urban tree management has changed. It’s no longer just about ecology, it’s about risk, budgets, and accountability. Cities need technology that connects what’s happening in the field to the decisions being made in council.

greehill captures street-level tree data, builds verified digital twins, and turns them into operational metrics across streets, parks, and districts.

From inspection to intervention, work becomes measurable and traceable.

Gabor Goertz and Gyula Fekete founded greehill because they saw a gap that no one was filling: cities had thousands of trees and almost no reliable data about them.

Their backgrounds, geospatial engineering, field expertise, and long-term infrastructure thinking, gave them a different lens. Not just how to collect tree data, but how to make it useful at city scale, year after year.

What started as an R&D project initiated by NParks in Singapore has grown into an operational standard used by cities on five continents.

Today, greehill works with cities across nearly all continents, creating verified, citywide tree inventories and keeping them continuously updated.

Our technology connects street-level LiDAR, AI analytics, and standardized metrics into outputs that teams can act on immediately, in the field and in the boardroom.

With a growing international presence and strong backing, we’re scaling what we believe should be the global standard for managing urban trees as infrastructure.