Contact our Experts

Geospatial, mapping, land information and cadastral experts

EuroGeographics is fortunate to count a wealth of experts in geospatial, cadastre and land information among its membership. These include our Management Board, Secretary General and Executive Director and the Chairs of our Knowledge Exchange Networks.

We can help you to access a number of professionals who are willing to share their knowledge and insight in a wide range of subjects. These include policy, European initiatives, surveying, data quality, positioning (GNSS) and pricing and licensing, as well as the future challenges and opportunities for National Mapping, Cadastre and Land Registry Authorities.

Colin Bray

Colin Bray

President of EuroGeographics

Areas of interest:

  • Future roles for National Mapping, Cadastral and Land Registry Authorities.
  • Political and policy benefits of harmonised European data and data services from official national sources.
  • Strategic and technical transformation of geo-information organisations to meet the challenges and opportunities of OpenData, disruptive technologies and demand for authoritative data

Colin Bray is Head of National Mapping, Tailte Éireann.

He has more than twenty years’ experience in strategic geospatial information management and has led OSi since 2013, having joined in 1998 as a professional surveyor and subsequently held the position of Chief Technology Officer .

He holds a Master of Science Degree in Management/Organisational Behaviour, a European Honours degree in Geodetic Engineering, and a Diploma in Geo-Surveying. He was the first Chartered Geomatics Surveyor to become President of the Society of Chartered Surveyors Ireland (SCSI).

Colin is an English speaker.

Sallie Payne Snell

Sallie Payne

Acting Secretary General & Executive Director EuroGeographics

Areas of interest:

  • Proactive  leadership to ensure official national map data and cadastre of all members is present, visible and recognised as indispensable in meeting global challenges.
  • The fundamental role of official national map data and cadastre in European society.
  • Facilitating mutually-beneficial partnerships organisations with shared objectives, common interests and complementary expertise.
  • Using official national map data and cadastral services to deliver European Union priorities and policies.
  • The political, policy and legislative context in which EuroGeographics’ members operate, with a particular focus on data availability. 


Jonathan Holmes

Jonathan Holmes

Chair of Quality Knowledge Exchange Network

Area of interest:

  • Quality as the ‘calling card’ of National Mapping, Cadastral and Land Registry Authorities.

Data quality expert, Jonathan Holmes is Chair of EuroGeographics Quality Knowledge Exchange Network.

Jonathan is Data Governance Manager at Ordnance Survey, He joined Britain’s Mapping Agency in 1986 as a surveyor and, following roles in IT and Information Management, began working with data and data quality in 2001.

As Chair of the Quality Knowledge Exchange Network, Jonathan leads a European network of data quality experts who share best practice and exchange experiences to support data interoperability.

The expert group is particularly interested in the challenges associated with an increased use of technology and its impact on quality systems. Tracking and sharing information about these is a key focus for its members.

Jonathan is an English speaker.

Marcin Grudzień

Chair of the INSPIRE Knowledge Exchange Network

Area of interest:

  • Implementation of INSPIRE by National Mapping, Cadastral and Land Registry Authorities.

National Spatial Data Infrastructure (NSDI) specialist, Marcin Grudzień chairs EuroGeographics INSPIRE Knowledge Exchange Network.

Marcin is Deputy Director Strategy, International Cooperation and Public Information Department for the Head Office of Geodesy and Cartography (GUGIK) in Poland. His experience includes coordinating the national technical implementation of the INSPIRE Directive and he also took an active role in building Poland’s fourth-biggest public sector IT system, addressing technical, semantic, operational and legal aspects for its stakeholders.

The purpose of the INSPIRE Knowledge Exchange Network is to help members to implement the Directive by following the development of the regulations, establishing a network of INSPIRE experts and sharing experiences and best practice.

Dominique speaks French and English.

Daniel Steudler

Daniel Steudler

Chair of Cadastre and Land Registry Knowledge Exchange Network

Areas of interest:

  • Economic and social benefits of integrating land information.
  • Impact of disruptive and digital technologies on land administration and management.

Cadastral Surveying expert Dr Daniel Steudler is Chair of EuroGeographics Cadastre and Land Registry Knowledge Exchange Network.

Daniel, who holds a PhD degree from the University of Melbourne, Australia, is a scientific associate at the Swiss Federal Office of Topography (swisstopo), working for the Federal Directorate for Cadastral Surveying. As an active member and since 2017 also Honorary Member of the International Federation of Surveyors (FIG), he is well known as a conference speaker whose work has been widely published.

Daniel leads the Association’s collaboration with the EU Permanent Committee on Cadastre (PCC), the European Land Registry Association (ELRA), the European Land Information Service (EULIS) and the Council of European Geodetic Surveyors (CLGE) to establish a common vision for cooperation on cadastre and land registry.

Daniel speaks German, English, and French.

To contact our experts, please email