Business Details
39 Years
experience
Your Trusted Aeronautical Surveyors in Aylesbury, UK
Established in 1987, SLC Associates has built a reputation as a leader in geospatial data provision, specialising in aeronautical surveying and software development. With 38 years of continuous operation, we deliver WGS-84 aerodrome surveys across 34 countries, supported by our proprietary Geospatial Data Management System (GDMS). Our ISO 9001 accreditation since 1997 underscores our commitment to quality, while our team of experts combines decades of field experience with technical innovation. Headquartered in Aylesbury, UK, we serve over 280 airports globally, offering tailored solutions for aerodrome safeguarding and electronic terrain data management.Our technical expertise extends to software development, with GDMS now deployed at 60+ locations worldwide. Through strategic partnerships in India and Africa, we maintain a robust international presence while retaining the agility of a specialist consultancy. Our directors bring combined experience from military engineering, aviation compliance, and GIS development, ensuring clients receive technically rigorous yet commercially pragmatic solutions. We prioritise continuous improvement, aligning our operations with ADQ compliance standards for the aeronautical industry.
Services
WGS-84 Implementations
Aerodrome Obstruction Surveys
GDMS Software Solutions
Surveying
Mapping
Details
- Year established: 1987
Highlights and features
- 38 years of specialist aeronautical surveying experience
- ISO 9001-certified quality management systems since 1997
- Global operations across 34 countries with 280+ airport projects
- Proprietary GDMS software for advanced obstruction analysis
- Multinational team with aviation regulatory compliance expertise
Associations and certifications
- ISO 9001
Services
WGS-84 Implementations
We implement WGS-84 standards for precise aerodrome positioning, ensuring global navigation compliance. Our surveys meet ICAO Annex 14 requirements, supporting safe aircraft operations through accurate coordinate systems. With over 280 completed projects, we deliver certified positional data for runway thresholds and aerodrome reference points.
Aerodrome Obstruction Surveys
Our obstruction surveys identify terrain and man-made hazards affecting flight safety. Using advanced laser scanning, we create 3D models to analyse obstacles against obstacle limitation surfaces. This critical data supports airport master planning and regulatory compliance for civil aviation authorities worldwide.
GDMS Software Solutions
GDMS provides integrated management of electronic terrain data and obstruction analysis. The system handles ICAO Annex 15 eTOD requirements, supporting both desktop and cloud-based workflows. With customisable surfaces and AIXM export capabilities, it streamlines aerodrome data management for 60+ global clients.
Surveying
We conduct specialist aeronautical surveys using GPS and total station equipment. Our surveyors operate in diverse environments from desert airports to urban hubs, delivering millimetre-accuracy data for runway maintenance and infrastructure development projects across 34 countries.
Mapping
Our mapping services create detailed topographic and thematic maps for aviation applications. Using GIS technology, we integrate aerial imagery and field data to produce obstruction charts, terrain models, and digital elevation models that support airport planning and regulatory submissions.
People
Stephen Card
Director of Operations
Founder with 10 years' military surveying experience and 30+ years leading aviation projects. Developed in-house software systems and conducts global GDMS training courses.
Oliver Bates
Director of Compliance
Manages aviation project compliance since 2005. Oversees adherence to UK and international aviation regulations, ensuring audit-ready operational procedures for all surveying activities.
Christopher Williams
Technical Development Manager
Led software development since 1995. Created AST-Pro and GDMS systems, providing technical support for bespoke applications used in 60+ global locations.
Anna Cisowska
Project Manager
Manages international airport projects with expertise in geodesy and cartography. Coordinates field teams across Africa, Middle East, and Europe for aerodrome survey programmes.
Sabina Plavicheanu
Special Projects Manager
PhD holder in Aeronautical Geodesy. Develops remote sensing applications for airport change detection and implements Airport Mapping Databases for enhanced operational safety.
Questions
What is GDMS software used for?
GDMS handles electronic terrain and obstacle data (eTOD) for aerodrome obstruction analysis, supporting ICAO Annex 14 compliance and airport safeguarding requirements.
In which countries do SLC Associates operate?
We work across 34 countries, with recent projects in the UK, UAE, Kuwait, Libya, Oman, Qatar, and the Caribbean.
Is SLC Associates ISO 9001 certified?
Yes, we have maintained ISO 9001 accreditation since September 1997, demonstrating our commitment to quality management systems.
What aeronautical survey services do you offer?
We specialise in WGS-84 aerodrome surveys, obstruction analysis, and electronic terrain data management for airport safety compliance.
Can GDMS software be accessed remotely?
Yes, GDMS-Enterprise offers cloud-based access for mobile devices and remote teams, alongside desktop deployment options.
