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Our mission is to provide geospatial data of the highest quality for any purpose. This has traditionally been for mapping purposes but nowadays is biased towards aeronautical data.


ormed in 1987 as SLC Surveys by Stephen L Card, the name was changed to SLC Associates in 1992 as part of a corporate re-branding. The partnership was incorporated in January 2001 as Geomatic Solutions Ltd but continues to trade under the more familiar names of SLC Associates or SLC Geomatic Solutions. The corporate logo was changed in 2010 and now says ‘SLC Geomatic Solutions’, a trading name that is becoming more familiar.

Our core business was to provide a high quality Land and Building Surveying service to the design sectors of the construction industry. However, in 1994, SLC Associates made a significant investment into GPS services by purchasing 5 sets of Leica GPS receivers and becoming, at that time, the largest corporate user of geodetic GPS equipment in the UK.
Twenty two years later, we continue to offer the full range of surveying and mapping services but the commitment to GPS and GNSS based services is still the main priority.

Our specialist aeronautical Surveyors have now successfully carried out over 260 WGS-84 aerodrome surveys around the World. We have also developed specialist software called GDMS which is soon to be available in an Enterprise version as well as the Desktop version. GDMS handles electronic terrain and obstacle data (eTOD) and analyses aerodrome obstructions. GDMS Desktop is currently in use at over 60 locations worldwide.

Our specialist aeronautical Surveyors have successfully carried out over 260 WGS-84 aerodrome surveys and continue to provide aeronautical grade positional data worldwide.
Stephen Card

Global Coverage

Operating In
Working With

  • Based in Aylesbury, Buckinghamshire, United Kingdom, SLC Associates operate worldwide and to date have worked in 34 different countries. SLC Associates have been accredited to ISO 9001 since September 1997 and are currently working towards being fully ADQ compliant for the aeronautical industry.

    Interested to learn more about what we do?

    We provide a full range services for WGS-84 Implementations and Aerodrome Obstruction Surveys with Software Systems for Safeguarding and eTOD.

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Our Team

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Stephen Card

Director of Operations

Stephen founded SLC Associates in 1987 after 10 years as a Surveyor (Engineering) and Combat Engineer in the Royal Engineers and a short spell with Wild Heerbrugg (now Leica GeoSystems). Stephen’s experience in working in adverse climates and conditions means that he’s often the first choice to lead the overseas teams. Stephen has also been instrumental in the development of our in-house software systems and now carries out many of the GDMS software training courses all around the World.


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Oliver Bates

Director of Compliance

Oliver joined SLC Associates as a graduate in 2005 and after a few years in the mapping department moved across to join the aviation team. Now, 11 years later, as one of our Directors, Oliver has the task of keeping the Company’s procedures up with compliance to UK and international regulations.

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Chris Williams

Technical Development Manager

Chris has been responsible for software development and custom applications since 1995.  His team wrote the original safeguarding software, AST-Pro, in 2003 and the new  GDMS Desktop and Enterprise in 2009.  Chris provides technical support for all our bespoke software systems as well as being responsible for new applications.

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Anna Cisowska

Project Manager

Anna, who has a Masters degree in Geodesy and Cartography, joined the mapping department in 2008 and moved to the aviation team in 2011. Since then Anna has worked at airports all over the world including Cameroon, the Caribbean, Kuwait, Libya, Oman, Qatar and the UAE, as well as the majority of the UK airports.

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Malgorzata Bates

Project Manager

Malgorzata, or Mal as she’s better known, also has a Masters degree in Surveying and GIS and joined the mapping department in 2008 and then transitioned across to the aviation team in 2011 where she is responsible for AIP charting and ArcGIS. Mal is married to Oliver and is currently on maternity leave following the birth of their second baby boy.

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Mark Stuchbury

Project Manager

Mark is our longest serving team member having joined the mapping department in 1997. Although now a member of the aviation team, Mark continues to be responsible for a lot of the mapping tasks that we get given, the most common of which are the EASA gradient surveys.