More than 30 years working together with the main forestry companies
John O’Ryan Surveyors is a Chilean company that controls and certifies quality and quantity of both raw materials and finished products. With more than 40 years of experience, we have provided sampling, analysis and certification services to leading companies in industries as diverse as mining, manufacturing, agriculture and forestry, being this last, the main market for our company in the last 30 years.

Quality Control

Sampling and quality analysis for raw materials and products at the forestry sector (Pulpwood,Biomass, Biofuels, Saw Wood, among others).

Quantity Control

We provide quantity control services at different stages of the supply chain woodchip and biomass production such as: recepction and consumption at mill, power plants, ports; stock determination of logs, woodchips and biomass; certification at the exportation, among others.

Management Systems

Development, Implementation and Audit of Quality Management Systems based on specifics customer requirement.


Consultancies in topics related to biomass and solid biofuels, pulp wood, logistic efficiency, chipper efficiency, among others.

"Governments, NGOs, companies and individuals that will improve world´s future are those that considers ethics, efficiency, knowledge, balance and sustainability as the basis for achie-ving progress and overall success. Our company’s goal is, every day, be the best partner of them to accom-plish these goals"

Rodrigo O´Ryan Blaitt


28 febrero, 2017

John O’Ryan Surveyors expone su Experiencia e Innovación en cuanto a Control de Calidad en la Cadena Forestal en Conferencia Internacional del sector efectuada en Vietnam

John O’Ryan Surveyors expuso  en la Novena versión de la “Conferencia Mundial de Recurso y Comercio de Madera Pulpable” (Ninth International Woodfiber Resource and Trade) Entre […]
4 febrero, 2017

John O´Ryan Surveyors expondrá en “International Woodfiber Resource and Trade Conference”, Da Nang, Vietnam, 15-16 Febrero 2017

John O´Ryan Surveyors expondrá en “International Woodfiber Resource and Trade Conference”, a realizarse en Da Nang, Vietnam, entre los días 13-15 Febrero 2017. Frente a más […]
9 septiembre, 2016

John O’Ryan Surveyors explora aplicación de Drones (o UAV) para medición de Acopios de Biomasa, Astillas Pulpables y Trozas